SPC Jul 22, 2025 0600 UTC Day 1 Convective Outlook

4 weeks ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Tue Jul 22 2025 Valid 221200Z - 231200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR PARTS OF THE NORTHERN PLAINS INTO NORTHERN MN... ...SUMMARY... Scattered severe thunderstorms are expected over parts of the northern Plains into the upper Mississippi Valley later today into tonight. ...Northern Plains into the Upper Great Lakes region... An active severe-weather day still appears possible across parts of the northern Plains into the upper MS Valley/Great Lakes, though considerable uncertainty remains regarding the evolution of storms through the day. One or more storm clusters and possibly a remnant MCS may be ongoing at the start of the period somewhere from eastern ND into northern MN, though guidance varies regarding the details. Any organized cluster or MCS that is ongoing may pose a threat for at least localized damaging gusts into parts of northern MN through the morning, along with some hail potential with any semi-discrete cells. A surface low is forecast to move eastward across SD through the day, downstream of a positively tilted upper-level trough over the northern Rockies. An outflow-influenced surface boundary will extend northeast from the low into parts of the eastern Dakotas and northern MN, though its placement is somewhat uncertain by afternoon. Strong instability will develop by afternoon near and south of the boundary, and also within a region of moist east/northeasterly flow north and northwest of the surface low. The strongest mid/upper-level flow will be north of the boundary, but backed low-level flow near the boundary will result in favorable deep-layer shear for organized convection. There will be some potential for supercell development near the surface low and northeastward along the boundary during the afternoon and evening, though coverage is uncertain due to rather subtle large-scale forcing. Any sustained supercells within this environment could pose some tornado threat, in addition to potential for large to very large hail and localized severe gusts. Greater tornado probabilities may be needed if confidence increases in supercell development during the afternoon and evening. Farther west, widely scattered storm development is again expected across parts of MT and northern WY, initially within the post-frontal environment. Moderate instability and favorable deep-layer shear will support a mixture of cells and clusters with hail and severe-wind potential as they move east-northeastward. With time, upscale growth will be possible, either from convection moving out of the northern High Plains, or from storms developing farther east near the surface boundary. This could result in potential for a swath of damaging winds during the evening and overnight, though the favored corridor for this potential remains uncertain at this time. ...IA into southern MN/WI... An MCV generated by the extensive MCC over the central Plains Monday evening is forecast by most 00Z guidance to move northeastward toward IA and southern MN/WI through the period. The extent of flow enhancement and storm development associated with this feature is uncertain, but it is forecast to track across a moist and unstable environment during the afternoon and evening, and could aid in the development of a few strong storms. Locally damaging gusts will be possible, and a tornado cannot be ruled out if the MCV remains somewhat vigorous. ...Parts of the Southeast... A weak cold front will move across parts of the Carolinas and Georgia today into this evening. Very rich moisture (PWs above 2 inches) will support scattered to numerous thunderstorms along/ahead of the front, and in association with the sea breeze. Strong to locally damaging gusts will be possible, mainly during the afternoon and evening. ...Southern/central Rockies/High Plains... Relatively high-based thunderstorms are again expected this afternoon and evening across parts of the central/southern Rockies and adjacent High Plains. Localized strong to severe gusts may accompany these storms, though with relatively modest buoyancy and weak deep-layer shear, the threat appears too disorganized and nebulous for probabilities at this time. ..Dean/Wendt.. 07/22/2025 Read more

SPC Jul 22, 2025 0600 UTC Day 1 Convective Outlook

4 weeks ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Tue Jul 22 2025 Valid 221200Z - 231200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR PARTS OF THE NORTHERN PLAINS INTO NORTHERN MN... ...SUMMARY... Scattered severe thunderstorms are expected over parts of the northern Plains into the upper Mississippi Valley later today into tonight. ...Northern Plains into the Upper Great Lakes region... An active severe-weather day still appears possible across parts of the northern Plains into the upper MS Valley/Great Lakes, though considerable uncertainty remains regarding the evolution of storms through the day. One or more storm clusters and possibly a remnant MCS may be ongoing at the start of the period somewhere from eastern ND into northern MN, though guidance varies regarding the details. Any organized cluster or MCS that is ongoing may pose a threat for at least localized damaging gusts into parts of northern MN through the morning, along with some hail potential with any semi-discrete cells. A surface low is forecast to move eastward across SD through the day, downstream of a positively tilted upper-level trough over the northern Rockies. An outflow-influenced surface boundary will extend northeast from the low into parts of the eastern Dakotas and northern MN, though its placement is somewhat uncertain by afternoon. Strong instability will develop by afternoon near and south of the boundary, and also within a region of moist east/northeasterly flow north and northwest of the surface low. The strongest mid/upper-level flow will be north of the boundary, but backed low-level flow near the boundary will result in favorable deep-layer shear for organized convection. There will be some potential for supercell development near the surface low and northeastward along the boundary during the afternoon and evening, though coverage is uncertain due to rather subtle large-scale forcing. Any sustained supercells within this environment could pose some tornado threat, in addition to potential for large to very large hail and localized severe gusts. Greater tornado probabilities may be needed if confidence increases in supercell development during the afternoon and evening. Farther west, widely scattered storm development is again expected across parts of MT and northern WY, initially within the post-frontal environment. Moderate instability and favorable deep-layer shear will support a mixture of cells and clusters with hail and severe-wind potential as they move east-northeastward. With time, upscale growth will be possible, either from convection moving out of the northern High Plains, or from storms developing farther east near the surface boundary. This could result in potential for a swath of damaging winds during the evening and overnight, though the favored corridor for this potential remains uncertain at this time. ...IA into southern MN/WI... An MCV generated by the extensive MCC over the central Plains Monday evening is forecast by most 00Z guidance to move northeastward toward IA and southern MN/WI through the period. The extent of flow enhancement and storm development associated with this feature is uncertain, but it is forecast to track across a moist and unstable environment during the afternoon and evening, and could aid in the development of a few strong storms. Locally damaging gusts will be possible, and a tornado cannot be ruled out if the MCV remains somewhat vigorous. ...Parts of the Southeast... A weak cold front will move across parts of the Carolinas and Georgia today into this evening. Very rich moisture (PWs above 2 inches) will support scattered to numerous thunderstorms along/ahead of the front, and in association with the sea breeze. Strong to locally damaging gusts will be possible, mainly during the afternoon and evening. ...Southern/central Rockies/High Plains... Relatively high-based thunderstorms are again expected this afternoon and evening across parts of the central/southern Rockies and adjacent High Plains. Localized strong to severe gusts may accompany these storms, though with relatively modest buoyancy and weak deep-layer shear, the threat appears too disorganized and nebulous for probabilities at this time. ..Dean/Wendt.. 07/22/2025 Read more

SPC Jul 22, 2025 0600 UTC Day 1 Convective Outlook

4 weeks ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Tue Jul 22 2025 Valid 221200Z - 231200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR PARTS OF THE NORTHERN PLAINS INTO NORTHERN MN... ...SUMMARY... Scattered severe thunderstorms are expected over parts of the northern Plains into the upper Mississippi Valley later today into tonight. ...Northern Plains into the Upper Great Lakes region... An active severe-weather day still appears possible across parts of the northern Plains into the upper MS Valley/Great Lakes, though considerable uncertainty remains regarding the evolution of storms through the day. One or more storm clusters and possibly a remnant MCS may be ongoing at the start of the period somewhere from eastern ND into northern MN, though guidance varies regarding the details. Any organized cluster or MCS that is ongoing may pose a threat for at least localized damaging gusts into parts of northern MN through the morning, along with some hail potential with any semi-discrete cells. A surface low is forecast to move eastward across SD through the day, downstream of a positively tilted upper-level trough over the northern Rockies. An outflow-influenced surface boundary will extend northeast from the low into parts of the eastern Dakotas and northern MN, though its placement is somewhat uncertain by afternoon. Strong instability will develop by afternoon near and south of the boundary, and also within a region of moist east/northeasterly flow north and northwest of the surface low. The strongest mid/upper-level flow will be north of the boundary, but backed low-level flow near the boundary will result in favorable deep-layer shear for organized convection. There will be some potential for supercell development near the surface low and northeastward along the boundary during the afternoon and evening, though coverage is uncertain due to rather subtle large-scale forcing. Any sustained supercells within this environment could pose some tornado threat, in addition to potential for large to very large hail and localized severe gusts. Greater tornado probabilities may be needed if confidence increases in supercell development during the afternoon and evening. Farther west, widely scattered storm development is again expected across parts of MT and northern WY, initially within the post-frontal environment. Moderate instability and favorable deep-layer shear will support a mixture of cells and clusters with hail and severe-wind potential as they move east-northeastward. With time, upscale growth will be possible, either from convection moving out of the northern High Plains, or from storms developing farther east near the surface boundary. This could result in potential for a swath of damaging winds during the evening and overnight, though the favored corridor for this potential remains uncertain at this time. ...IA into southern MN/WI... An MCV generated by the extensive MCC over the central Plains Monday evening is forecast by most 00Z guidance to move northeastward toward IA and southern MN/WI through the period. The extent of flow enhancement and storm development associated with this feature is uncertain, but it is forecast to track across a moist and unstable environment during the afternoon and evening, and could aid in the development of a few strong storms. Locally damaging gusts will be possible, and a tornado cannot be ruled out if the MCV remains somewhat vigorous. ...Parts of the Southeast... A weak cold front will move across parts of the Carolinas and Georgia today into this evening. Very rich moisture (PWs above 2 inches) will support scattered to numerous thunderstorms along/ahead of the front, and in association with the sea breeze. Strong to locally damaging gusts will be possible, mainly during the afternoon and evening. ...Southern/central Rockies/High Plains... Relatively high-based thunderstorms are again expected this afternoon and evening across parts of the central/southern Rockies and adjacent High Plains. Localized strong to severe gusts may accompany these storms, though with relatively modest buoyancy and weak deep-layer shear, the threat appears too disorganized and nebulous for probabilities at this time. ..Dean/Wendt.. 07/22/2025 Read more

SPC Jul 22, 2025 0600 UTC Day 1 Convective Outlook

4 weeks ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Tue Jul 22 2025 Valid 221200Z - 231200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR PARTS OF THE NORTHERN PLAINS INTO NORTHERN MN... ...SUMMARY... Scattered severe thunderstorms are expected over parts of the northern Plains into the upper Mississippi Valley later today into tonight. ...Northern Plains into the Upper Great Lakes region... An active severe-weather day still appears possible across parts of the northern Plains into the upper MS Valley/Great Lakes, though considerable uncertainty remains regarding the evolution of storms through the day. One or more storm clusters and possibly a remnant MCS may be ongoing at the start of the period somewhere from eastern ND into northern MN, though guidance varies regarding the details. Any organized cluster or MCS that is ongoing may pose a threat for at least localized damaging gusts into parts of northern MN through the morning, along with some hail potential with any semi-discrete cells. A surface low is forecast to move eastward across SD through the day, downstream of a positively tilted upper-level trough over the northern Rockies. An outflow-influenced surface boundary will extend northeast from the low into parts of the eastern Dakotas and northern MN, though its placement is somewhat uncertain by afternoon. Strong instability will develop by afternoon near and south of the boundary, and also within a region of moist east/northeasterly flow north and northwest of the surface low. The strongest mid/upper-level flow will be north of the boundary, but backed low-level flow near the boundary will result in favorable deep-layer shear for organized convection. There will be some potential for supercell development near the surface low and northeastward along the boundary during the afternoon and evening, though coverage is uncertain due to rather subtle large-scale forcing. Any sustained supercells within this environment could pose some tornado threat, in addition to potential for large to very large hail and localized severe gusts. Greater tornado probabilities may be needed if confidence increases in supercell development during the afternoon and evening. Farther west, widely scattered storm development is again expected across parts of MT and northern WY, initially within the post-frontal environment. Moderate instability and favorable deep-layer shear will support a mixture of cells and clusters with hail and severe-wind potential as they move east-northeastward. With time, upscale growth will be possible, either from convection moving out of the northern High Plains, or from storms developing farther east near the surface boundary. This could result in potential for a swath of damaging winds during the evening and overnight, though the favored corridor for this potential remains uncertain at this time. ...IA into southern MN/WI... An MCV generated by the extensive MCC over the central Plains Monday evening is forecast by most 00Z guidance to move northeastward toward IA and southern MN/WI through the period. The extent of flow enhancement and storm development associated with this feature is uncertain, but it is forecast to track across a moist and unstable environment during the afternoon and evening, and could aid in the development of a few strong storms. Locally damaging gusts will be possible, and a tornado cannot be ruled out if the MCV remains somewhat vigorous. ...Parts of the Southeast... A weak cold front will move across parts of the Carolinas and Georgia today into this evening. Very rich moisture (PWs above 2 inches) will support scattered to numerous thunderstorms along/ahead of the front, and in association with the sea breeze. Strong to locally damaging gusts will be possible, mainly during the afternoon and evening. ...Southern/central Rockies/High Plains... Relatively high-based thunderstorms are again expected this afternoon and evening across parts of the central/southern Rockies and adjacent High Plains. Localized strong to severe gusts may accompany these storms, though with relatively modest buoyancy and weak deep-layer shear, the threat appears too disorganized and nebulous for probabilities at this time. ..Dean/Wendt.. 07/22/2025 Read more

SPC Jul 22, 2025 0600 UTC Day 1 Convective Outlook

4 weeks ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Tue Jul 22 2025 Valid 221200Z - 231200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR PARTS OF THE NORTHERN PLAINS INTO NORTHERN MN... ...SUMMARY... Scattered severe thunderstorms are expected over parts of the northern Plains into the upper Mississippi Valley later today into tonight. ...Northern Plains into the Upper Great Lakes region... An active severe-weather day still appears possible across parts of the northern Plains into the upper MS Valley/Great Lakes, though considerable uncertainty remains regarding the evolution of storms through the day. One or more storm clusters and possibly a remnant MCS may be ongoing at the start of the period somewhere from eastern ND into northern MN, though guidance varies regarding the details. Any organized cluster or MCS that is ongoing may pose a threat for at least localized damaging gusts into parts of northern MN through the morning, along with some hail potential with any semi-discrete cells. A surface low is forecast to move eastward across SD through the day, downstream of a positively tilted upper-level trough over the northern Rockies. An outflow-influenced surface boundary will extend northeast from the low into parts of the eastern Dakotas and northern MN, though its placement is somewhat uncertain by afternoon. Strong instability will develop by afternoon near and south of the boundary, and also within a region of moist east/northeasterly flow north and northwest of the surface low. The strongest mid/upper-level flow will be north of the boundary, but backed low-level flow near the boundary will result in favorable deep-layer shear for organized convection. There will be some potential for supercell development near the surface low and northeastward along the boundary during the afternoon and evening, though coverage is uncertain due to rather subtle large-scale forcing. Any sustained supercells within this environment could pose some tornado threat, in addition to potential for large to very large hail and localized severe gusts. Greater tornado probabilities may be needed if confidence increases in supercell development during the afternoon and evening. Farther west, widely scattered storm development is again expected across parts of MT and northern WY, initially within the post-frontal environment. Moderate instability and favorable deep-layer shear will support a mixture of cells and clusters with hail and severe-wind potential as they move east-northeastward. With time, upscale growth will be possible, either from convection moving out of the northern High Plains, or from storms developing farther east near the surface boundary. This could result in potential for a swath of damaging winds during the evening and overnight, though the favored corridor for this potential remains uncertain at this time. ...IA into southern MN/WI... An MCV generated by the extensive MCC over the central Plains Monday evening is forecast by most 00Z guidance to move northeastward toward IA and southern MN/WI through the period. The extent of flow enhancement and storm development associated with this feature is uncertain, but it is forecast to track across a moist and unstable environment during the afternoon and evening, and could aid in the development of a few strong storms. Locally damaging gusts will be possible, and a tornado cannot be ruled out if the MCV remains somewhat vigorous. ...Parts of the Southeast... A weak cold front will move across parts of the Carolinas and Georgia today into this evening. Very rich moisture (PWs above 2 inches) will support scattered to numerous thunderstorms along/ahead of the front, and in association with the sea breeze. Strong to locally damaging gusts will be possible, mainly during the afternoon and evening. ...Southern/central Rockies/High Plains... Relatively high-based thunderstorms are again expected this afternoon and evening across parts of the central/southern Rockies and adjacent High Plains. Localized strong to severe gusts may accompany these storms, though with relatively modest buoyancy and weak deep-layer shear, the threat appears too disorganized and nebulous for probabilities at this time. ..Dean/Wendt.. 07/22/2025 Read more

SPC Severe Thunderstorm Watch 536 Status Reports

4 weeks ago
WW 0536 Status Updates
STATUS REPORT ON WW 536 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..GRAMS..07/22/25 ATTN...WFO...FGF...BIS...ABR... STATUS REPORT FOR WS 536 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MNC027-167-220640- MN . MINNESOTA COUNTIES INCLUDED ARE CLAY WILKIN NDC003-015-017-021-029-037-043-045-047-051-059-065-073-077-081- 085-093-220640- ND . NORTH DAKOTA COUNTIES INCLUDED ARE BARNES BURLEIGH CASS DICKEY EMMONS GRANT KIDDER LAMOURE LOGAN MCINTOSH MORTON OLIVER RANSOM RICHLAND SARGENT SIOUX STUTSMAN SDC013-021-031-041-045-049-089-091-107-129-220640- SD . SOUTH DAKOTA COUNTIES INCLUDED ARE Read more

SPC MD 1750

4 weeks ago
MD 1750 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR WEST-CENTRAL INTO CENTRAL SOUTH DAKOTA AND FAR SOUTH-CENTRAL NORTH DAKOTA
Mesoscale Discussion 1750 NWS Storm Prediction Center Norman OK 0910 PM CDT Mon Jul 21 2025 Areas affected...West-central into central South Dakota and far south-central North Dakota Concerning...Severe potential...Watch possible Valid 220210Z - 220415Z Probability of Watch Issuance...40 percent SUMMARY...Though uncertain, some increase in storm intensity/coverage is possible this evening. Convective trends will be monitored for a possible watch. DISCUSSION...A small cluster of storms northeast of the Black Hills has recently shown some modest intensification. Another storm has also developed east of the Black Hills. This is likely in response to a strengthening low-level jet. MLCAPE is still near or above 4000 J/kg ahead of this activity and effective shear is sufficient for organized storms. However, MLCIN is also starting to slowly increase as well. With little upper-level support, it is not clear whether storms will maintain intensity or how much coverage will increase this evening. A watch is possible, but it will depend on convective trends in intensity/upscale growth. ..Wendt/Hart.. 07/22/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...ABR...BIS...UNR... LAT...LON 45869934 45109959 44640083 44370195 44940311 45520239 46030020 45869934 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN Read more

SPC MD 1749

4 weeks ago
MD 1749 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR CENTRAL/SOUTH-CENTRAL KS
Mesoscale Discussion 1749 NWS Storm Prediction Center Norman OK 0739 PM CDT Mon Jul 21 2025 Areas affected...Central/South-Central KS Concerning...Severe potential...Watch possible Valid 220039Z - 220245Z Probability of Watch Issuance...40 percent SUMMARY...Threat for damaging wind gusts and isolated hail will continue across central and south-central Kansas this evening. DISCUSSION...Cluster of intense thunderstorms over north-central KS has shown a trend for more southward progression over the last 30 mins or so. The airmass across central KS remains very unstable, with recent mesoanalysis estimating MLCAPE over 3500 J/kg. Temperatures in this area remain in the mid 90s with dewpoints in the low to mid 70s. An outflow boundary is impinging on the northeastern periphery of this warm, moist, and unstable airmass. This boundary should act as an eastern bound for any additional development, likely resulting in the convective cluster continuing to a favor a most southerly motion (maybe even slightly south-southwesterly). Given the weak shear across the region, the overall southerly push within the storm cluster will likely remain dominated by downdraft surges. These storms are very tall, with tops likely in the 55 to 60 kft range. IR satellite imagery recently observed cloud top below -80 deg C. As a result, damaging downbursts will remain the primary risk, with some isolated hail as a secondary threat. Another cluster of strong to severe thunderstorms is progressing eastward across far south-central KS. This airmass downstream of these storms in similar to that over central KS, and the potential for discrete propagation is likely as the eastward-moving outflow moves into the strong buoyancy downstream. Some eventual interaction between these two clusters is possible, although confidence in the overall convective evolution is low. Convective trends are being monitored and a watch could be issued if confidence in convective evolution and severe wind coverage increases. ..Mosier/Hart.. 07/22/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...TOP...ICT...OUN...GID...DDC... LAT...LON 39449896 39099748 37459602 36919767 37079984 38570027 39449896 MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN Read more

SPC Severe Thunderstorm Watch 535 Status Reports

4 weeks ago
WW 0535 Status Updates
STATUS REPORT ON WW 535 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW RAP TO 60 ESE 4BQ TO 35 SSW 4BQ TO 60 NE BIL TO 40 SSE 3HT. ..WENDT..07/22/25 ATTN...WFO...BYZ...GGW...BIS...UNR... STATUS REPORT FOR WS 535 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC011-017-021-025-033-037-055-065-069-075-079-087-107-109- 220340- MT . MONTANA COUNTIES INCLUDED ARE CARTER CUSTER DAWSON FALLON GARFIELD GOLDEN VALLEY MCCONE MUSSELSHELL PETROLEUM POWDER RIVER PRAIRIE ROSEBUD WHEATLAND WIBAUX NDC007-011-033-087-220340- ND . NORTH DAKOTA COUNTIES INCLUDED ARE BILLINGS BOWMAN GOLDEN VALLEY SLOPE SDC019-063-093-220340- SD Read more

SPC Severe Thunderstorm Watch 535 Status Reports

4 weeks ago
WW 0535 Status Updates
STATUS REPORT ON WW 535 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW RAP TO 60 ESE 4BQ TO 35 SSW 4BQ TO 60 NE BIL TO 40 SSE 3HT. ..WENDT..07/22/25 ATTN...WFO...BYZ...GGW...BIS...UNR... STATUS REPORT FOR WS 535 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC011-017-021-025-033-037-055-065-069-075-079-087-107-109- 220340- MT . MONTANA COUNTIES INCLUDED ARE CARTER CUSTER DAWSON FALLON GARFIELD GOLDEN VALLEY MCCONE MUSSELSHELL PETROLEUM POWDER RIVER PRAIRIE ROSEBUD WHEATLAND WIBAUX NDC007-011-033-087-220340- ND . NORTH DAKOTA COUNTIES INCLUDED ARE BILLINGS BOWMAN GOLDEN VALLEY SLOPE SDC019-063-093-220340- SD Read more

SPC Severe Thunderstorm Watch 535 Status Reports

4 weeks ago
WW 0535 Status Updates
STATUS REPORT ON WW 535 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW RAP TO 60 ESE 4BQ TO 35 SSW 4BQ TO 60 NE BIL TO 40 SSE 3HT. ..WENDT..07/22/25 ATTN...WFO...BYZ...GGW...BIS...UNR... STATUS REPORT FOR WS 535 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC011-017-021-025-033-037-055-065-069-075-079-087-107-109- 220340- MT . MONTANA COUNTIES INCLUDED ARE CARTER CUSTER DAWSON FALLON GARFIELD GOLDEN VALLEY MCCONE MUSSELSHELL PETROLEUM POWDER RIVER PRAIRIE ROSEBUD WHEATLAND WIBAUX NDC007-011-033-087-220340- ND . NORTH DAKOTA COUNTIES INCLUDED ARE BILLINGS BOWMAN GOLDEN VALLEY SLOPE SDC019-063-093-220340- SD Read more

SPC Severe Thunderstorm Watch 535 Status Reports

4 weeks ago
WW 0535 Status Updates
STATUS REPORT ON WW 535 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW RAP TO 60 ESE 4BQ TO 35 SSW 4BQ TO 60 NE BIL TO 40 SSE 3HT. ..WENDT..07/22/25 ATTN...WFO...BYZ...GGW...BIS...UNR... STATUS REPORT FOR WS 535 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC011-017-021-025-033-037-055-065-069-075-079-087-107-109- 220340- MT . MONTANA COUNTIES INCLUDED ARE CARTER CUSTER DAWSON FALLON GARFIELD GOLDEN VALLEY MCCONE MUSSELSHELL PETROLEUM POWDER RIVER PRAIRIE ROSEBUD WHEATLAND WIBAUX NDC007-011-033-087-220340- ND . NORTH DAKOTA COUNTIES INCLUDED ARE BILLINGS BOWMAN GOLDEN VALLEY SLOPE SDC019-063-093-220340- SD Read more

SPC Severe Thunderstorm Watch 535 Status Reports

4 weeks ago
WW 0535 Status Updates
STATUS REPORT ON WW 535 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW RAP TO 60 ESE 4BQ TO 35 SSW 4BQ TO 60 NE BIL TO 40 SSE 3HT. ..WENDT..07/22/25 ATTN...WFO...BYZ...GGW...BIS...UNR... STATUS REPORT FOR WS 535 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC011-017-021-025-033-037-055-065-069-075-079-087-107-109- 220340- MT . MONTANA COUNTIES INCLUDED ARE CARTER CUSTER DAWSON FALLON GARFIELD GOLDEN VALLEY MCCONE MUSSELSHELL PETROLEUM POWDER RIVER PRAIRIE ROSEBUD WHEATLAND WIBAUX NDC007-011-033-087-220340- ND . NORTH DAKOTA COUNTIES INCLUDED ARE BILLINGS BOWMAN GOLDEN VALLEY SLOPE SDC019-063-093-220340- SD Read more

SPC Severe Thunderstorm Watch 535 Status Reports

4 weeks ago
WW 0535 Status Updates
STATUS REPORT ON WW 535 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW RAP TO 60 ESE 4BQ TO 35 SSW 4BQ TO 60 NE BIL TO 40 SSE 3HT. ..WENDT..07/22/25 ATTN...WFO...BYZ...GGW...BIS...UNR... STATUS REPORT FOR WS 535 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC011-017-021-025-033-037-055-065-069-075-079-087-107-109- 220340- MT . MONTANA COUNTIES INCLUDED ARE CARTER CUSTER DAWSON FALLON GARFIELD GOLDEN VALLEY MCCONE MUSSELSHELL PETROLEUM POWDER RIVER PRAIRIE ROSEBUD WHEATLAND WIBAUX NDC007-011-033-087-220340- ND . NORTH DAKOTA COUNTIES INCLUDED ARE BILLINGS BOWMAN GOLDEN VALLEY SLOPE SDC019-063-093-220340- SD Read more

SPC Severe Thunderstorm Watch 535

4 weeks ago
WW 535 SEVERE TSTM MT ND SD WY 212135Z - 220500Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 535 NWS Storm Prediction Center Norman OK 335 PM MDT Mon Jul 21 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Montana Southwest North Dakota Northwest South Dakota Northeast Wyoming * Effective this Monday afternoon and evening from 335 PM until 1100 PM MDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2.5 inches in diameter possible Scattered damaging wind gusts to 70 mph possible A tornado or two possible SUMMARY...Thunderstorms will continue to develop and intensify across parts of northeast Wyoming and southeast Montana through the late afternoon. These storms will track northeastward across the watch area, posing a risk of large hail and damaging wind gusts. The severe thunderstorm watch area is approximately along and 75 statute miles north and south of a line from 60 miles northwest of Billings MT to 25 miles east northeast of Buffalo SD. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 25030. ...Hart Read more