SPC Severe Thunderstorm Watch 590 Status Reports

5 years 11 months ago
WW 0590 Status Updates
STATUS REPORT ON WW 590 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 WNW VTN TO 45 SSE PHP TO 30 SE PIR TO 40 WNW HON TO 55 NNW VVV. ..GLEASON..08/17/19 ATTN...WFO...UNR...ABR... STATUS REPORT FOR WS 590 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS SDC017-025-037-059-085-095-115-121-123-180040- SD . SOUTH DAKOTA COUNTIES INCLUDED ARE BUFFALO CLARK DAY HAND LYMAN MELLETTE SPINK TODD TRIPP THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

SPC Severe Thunderstorm Watch 591 Status Reports

5 years 11 months ago
WW 0591 Status Updates
STATUS REPORT ON WW 591 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 E PIT TO 20 SW DUJ TO 25 ESE DUJ TO 10 N UNV TO 20 SW IPT TO 10 E IPT TO 25 NW AVP. WW 591 WILL BE ALLOWED TO EXPIRE AT 180000Z. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1774 ..NAUSLAR..08/17/19 ATTN...WFO...PBZ...CTP... STATUS REPORT FOR WS 591 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS PAC005-033-063-113-180000- PA . PENNSYLVANIA COUNTIES INCLUDED ARE ARMSTRONG CLEARFIELD INDIANA SULLIVAN THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

SPC Severe Thunderstorm Watch 591 Status Reports

5 years 11 months ago
WW 0591 Status Updates
STATUS REPORT ON WW 591 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 E PIT TO 20 SW DUJ TO 25 ESE DUJ TO 10 N UNV TO 20 SW IPT TO 10 E IPT TO 25 NW AVP. WW 591 WILL BE ALLOWED TO EXPIRE AT 180000Z. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1774 ..NAUSLAR..08/17/19 ATTN...WFO...PBZ...CTP... STATUS REPORT FOR WS 591 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS PAC005-033-063-113-180000- PA . PENNSYLVANIA COUNTIES INCLUDED ARE ARMSTRONG CLEARFIELD INDIANA SULLIVAN THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

SPC Severe Thunderstorm Watch 591 Status Reports

5 years 11 months ago
WW 0591 Status Updates
STATUS REPORT ON WW 591 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 E PIT TO 20 SW DUJ TO 25 ESE DUJ TO 10 N UNV TO 20 SW IPT TO 10 E IPT TO 25 NW AVP. WW 591 WILL BE ALLOWED TO EXPIRE AT 180000Z. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1774 ..NAUSLAR..08/17/19 ATTN...WFO...PBZ...CTP... STATUS REPORT FOR WS 591 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS PAC005-033-063-113-180000- PA . PENNSYLVANIA COUNTIES INCLUDED ARE ARMSTRONG CLEARFIELD INDIANA SULLIVAN THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

SPC Severe Thunderstorm Watch 591 Status Reports

5 years 11 months ago
WW 0591 Status Updates
STATUS REPORT ON WW 591 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 E PIT TO 20 SW DUJ TO 25 ESE DUJ TO 10 N UNV TO 20 SW IPT TO 10 E IPT TO 25 NW AVP. WW 591 WILL BE ALLOWED TO EXPIRE AT 180000Z. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1774 ..NAUSLAR..08/17/19 ATTN...WFO...PBZ...CTP... STATUS REPORT FOR WS 591 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS PAC005-033-063-113-180000- PA . PENNSYLVANIA COUNTIES INCLUDED ARE ARMSTRONG CLEARFIELD INDIANA SULLIVAN THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

SPC Severe Thunderstorm Watch 591 Status Reports

5 years 11 months ago
WW 0591 Status Updates
STATUS REPORT ON WW 591 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 E PIT TO 20 SW DUJ TO 25 ESE DUJ TO 10 N UNV TO 20 SW IPT TO 10 E IPT TO 25 NW AVP. WW 591 WILL BE ALLOWED TO EXPIRE AT 180000Z. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1774 ..NAUSLAR..08/17/19 ATTN...WFO...PBZ...CTP... STATUS REPORT FOR WS 591 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS PAC005-033-063-113-180000- PA . PENNSYLVANIA COUNTIES INCLUDED ARE ARMSTRONG CLEARFIELD INDIANA SULLIVAN THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

SPC MD 1772

5 years 11 months ago
MD 1772 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR PORTIONS OF NEW ENGLAND AND UPSTATE NEW YORK
Mesoscale Discussion 1772 NWS Storm Prediction Center Norman OK 0522 PM CDT Sat Aug 17 2019 Areas affected...portions of New England and Upstate New York Concerning...Severe potential...Watch unlikely Valid 172222Z - 180045Z Probability of Watch Issuance...20 percent SUMMARY...A line of storms will continue to move eastward into the evening across New England and vicinity. Storm intensity will likely begin to wane after sunset, but damaging wind and large hail hail remain possible in the next 2+ hours. A severe thunderstorm watch issuance is unlikely. DISCUSSION...A line of storms has developed ahead an upper level shortwave trough moving over the eastern Great Lakes and southern Ontario/Quebec. Given the upper-level forcing for ascent that is present, the storm mode should continue to be quasi-linear. However, given convective temperatures are being breached ahead of the line/cloud cover amid moderate instability (1000-1500 J/kg of MLCAPE) and with effective bulk shear of 30-40 knots, discrete cells are likely to continue developing ahead of the line. There is evidence of a strengthening cold pool and stronger rear inflow per KENX with strong winds remaining likely and several wind reports have been noted during the last hour. Isolated large hail is also possible along the southern periphery of the line or with any strong cell that can intensify into a weaker supercell ahead of the line. While storms are likely to continue moving east after sunset, instability will begin to weaken, and the severe threat will diminish. Given the marginal severe threat and relatively narrow window for severe wind/hail, a watch issuance is unlikely. ..Nauslar/Guyer.. 08/17/2019 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...GYX...BOX...BTV...OKX...ALY...PHI...BGM... LAT...LON 41027370 41057390 41127441 41337478 41617504 42877404 43557352 43937321 44217280 44537228 44687176 44497120 44097120 43447154 42627220 42007265 41597303 41027370 Read more

SPC MD 1773

5 years 11 months ago
MD 1773 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR PORTIONS OF FAR SOUTHEASTERN ND INTO NORTHWESTERN/NORTH-CENTRAL MN
Mesoscale Discussion 1773 NWS Storm Prediction Center Norman OK 0535 PM CDT Sat Aug 17 2019 Areas affected...Portions of far southeastern ND into northwestern/north-central MN Concerning...Severe potential...Watch unlikely Valid 172235Z - 180030Z Probability of Watch Issuance...20 percent SUMMARY...Mainly a strong/gusty wind threat should persist through the early evening. Watch issuance is unlikely. DISCUSSION...Compared to areas farther south in eastern SD, low-level moisture remains more limited late this afternoon across northwestern into north-central MN ahead of an eastward-moving cold front and attendant line of thunderstorms. Somewhat cooler surface temperatures and modest mid-level lapse rates are limiting instability across this region, with MLCAPE of 500-1500 J/kg being estimated by 22Z mesoanalysis. A recent wind gust to 36 kt was observed at KFSE in northwestern MN, and similar strong/gusty winds may occur with convective downdrafts along the front in the short term (next couple of hours). Marginally severe hail cannot be ruled out with the strongest embedded cores, but the linear mode should tend to limit the hail threat. This isolated severe threat should diminish later this evening with the loss of daytime heating and resultant gradual reduction of already weak instability. Watch issuance remains unlikely this evening due to the overall marginal nature of the severe risk. ..Gleason/Guyer.. 08/17/2019 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DLH...FGF... LAT...LON 45989705 46289727 47849582 48799503 48819459 48729418 48669379 48649313 47929351 47349411 46379516 46129600 45989705 Read more

SPC Severe Thunderstorm Watch 592 Status Reports

5 years 11 months ago
WW 0592 Status Updates
STATUS REPORT ON WW 592 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1775 ..NAUSLAR..08/17/19 ATTN...WFO...GLD... STATUS REPORT FOR WS 592 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC017-063-125-180040- CO . COLORADO COUNTIES INCLUDED ARE CHEYENNE KIT CARSON YUMA KSC023-039-063-065-109-137-153-179-181-193-199-180040- KS . KANSAS COUNTIES INCLUDED ARE CHEYENNE DECATUR GOVE GRAHAM LOGAN NORTON RAWLINS SHERIDAN SHERMAN THOMAS WALLACE NEC057-087-145-180040- NE . NEBRASKA COUNTIES INCLUDED ARE Read more

SPC MD 1774

5 years 11 months ago
MD 1774 CONCERNING SEVERE THUNDERSTORM WATCH 591... FOR WESTERN PENNSYLVANIA INTO NORTHEAST PENNSYLVANIA
Mesoscale Discussion 1774 NWS Storm Prediction Center Norman OK 0544 PM CDT Sat Aug 17 2019 Areas affected...western Pennsylvania into northeast Pennsylvania Concerning...Severe Thunderstorm Watch 591... Valid 172244Z - 180045Z The severe weather threat for Severe Thunderstorm Watch 591 continues. SUMMARY...Storms capable of marginally severe hail and wind continue to move east/southeast across western, central, and northeast Pennsylvania. DISCUSSION...As an upper-level shortwave trough moves eastward across the eastern Great Lakes and southern Ontario/Quebec, storms developed along its southern/southeast periphery across Pennsylvania. CAPPI 7 and 9 km are trending mostly downward except for the storm in far northeast Pennsylvania south/southwest of BGM. However, there still remains some potential for marginally severe wind and hail with the stronger storms. A couple of storms could move out of the watch, but a local watch extension/expansion is unlikely at this time given the recent convective trends and expected waning storm intensity after sunset. Counties will continue to be cleared behind the broken line of storms until the watch expiration at 00z. ..Nauslar/Guyer.. 08/17/2019 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PHI...BGM...CTP...PBZ... LAT...LON 40277976 40647995 40987986 41137968 41227855 41337776 41497722 41857641 42027593 41957524 41837513 41247554 40517624 40377795 40297916 40277976 Read more

SPC MD 1775

5 years 11 months ago
MD 1775 CONCERNING SEVERE THUNDERSTORM WATCH 592... FOR NORTHEAST COLORADO...SOUTHWEST NEBRASKA...NORTHWEST KANSAS
Mesoscale Discussion 1775 NWS Storm Prediction Center Norman OK 0628 PM CDT Sat Aug 17 2019 Areas affected...northeast Colorado...southwest Nebraska...northwest Kansas Concerning...Severe Thunderstorm Watch 592... Valid 172328Z - 180130Z The severe weather threat for Severe Thunderstorm Watch 592 continues. SUMMARY...The severe risk continues across WW592 with storms possibly move out of the watch in the next couple of hours. Severe hail and wind are the main threats. DISCUSSION...Storms have developed in northeast Colorado and northwest Kansas near a surface pressure trough and just north of a surface low located in east-central Colorado with severe hail/wind reported in GLD CWA. A hot, moist airmass is just east of the surface pressure trough resulting in 2000-3500 J/kg of MLCAPE. However, CIN remains across much of Kansas and into eastern Colorado and southwest Nebraska, which may limit eastward storm development/propagation, at least initially. Although the presence of mature supercells may reduce the impact of the CIN, and KGLD radar does show outflow surging ahead of the convection, which may help trigger new convection. Given the inhibition and effective bulk shear of 35-40 knots, supercellular storm mode will continue to be likely. As the low-level jet strengthens tonight, storms are likely to grow upscale across northwest Kansas and vicinity and move eastward. Recent HRRR solutions suggest the initial northwest Kansas convection may dissipate, but the storms currently in northeast Colorado may move into northwest Kansas and grow upscale with the strengthening low-level jet. A local watch extension will likely be needed and new watch may be necessary depending on how the next couple of hours plays out. ..Nauslar/Guyer.. 08/17/2019 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...ICT...GID...DDC...GLD...PUB...BOU... LAT...LON 38509961 38300066 38260204 38590314 39930330 40240299 40250154 40200046 39999962 39719904 39149897 38849913 38509961 Read more

SPC Severe Thunderstorm Watch 593 Status Reports

5 years 11 months ago
WW 0593 Status Updates
STATUS REPORT ON WW 593 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..GLEASON..08/17/19 ATTN...WFO...FSD...ABR...MPX...FGF...OAX...LBF... STATUS REPORT FOR WS 593 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC035-093-119-141-143-149-167-193-180040- IA . IOWA COUNTIES INCLUDED ARE CHEROKEE IDA LYON O'BRIEN OSCEOLA PLYMOUTH SIOUX WOODBURY MNC011-023-041-051-073-081-083-101-105-117-121-133-149-151-155- 173-180040- MN . MINNESOTA COUNTIES INCLUDED ARE BIG STONE CHIPPEWA DOUGLAS GRANT LAC QUI PARLE LINCOLN LYON MURRAY NOBLES PIPESTONE POPE ROCK STEVENS SWIFT TRAVERSE YELLOW MEDICINE NEC003-015-027-043-051-089-103-107-139-179-180040- Read more

SPC Severe Thunderstorm Watch 593

5 years 11 months ago
WW 593 SEVERE TSTM IA MN NE SD 172315Z - 180600Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 593 NWS Storm Prediction Center Norman OK 615 PM CDT Sat Aug 17 2019 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northwest Iowa Southwest Minnesota Northeast Nebraska Eastern South Dakota * Effective this Saturday night and Sunday morning from 615 PM until 100 AM CDT. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 75 mph possible Scattered large hail and isolated very large hail events to 2 inches in diameter possible A tornado or two possible SUMMARY...Ongoing storms across south-central/northeast South Dakota early this evening will continue eastward, with the possibility of additional/more isolated supercell development ahead of an evolving cluster of storms. Some tornado risk may exist for a time, particularly through mid-evening across southeast South Dakota. However, the overall most common risks should be large hail and damaging winds, which should become more of a concern later this evening as storm mergers occur and a more organized cluster/line develops. The severe thunderstorm watch area is approximately along and 130 statute miles north and south of a line from 30 miles north northeast of Worthington MN to 45 miles west southwest of Huron SD. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). 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. && OTHER WATCH INFORMATION...CONTINUE...WW 590...WW 591...WW 592... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 600. Mean storm motion vector 28025. ...Guyer Read more

SPC Severe Thunderstorm Watch 591 Status Reports

5 years 11 months ago
WW 0591 Status Updates
STATUS REPORT ON WW 591 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NE PIT TO 30 SSE FKL TO 5 WSW DUJ TO 25 E DUJ TO 25 N UNV TO 15 NNW IPT TO 35 NE IPT TO 5 SW BGM. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1774 ..NAUSLAR..08/17/19 ATTN...WFO...PBZ...CTP... STATUS REPORT FOR WS 591 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS PAC005-031-033-035-063-065-081-113-172340- PA . PENNSYLVANIA COUNTIES INCLUDED ARE ARMSTRONG CLARION CLEARFIELD CLINTON INDIANA JEFFERSON LYCOMING SULLIVAN THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

SPC Severe Thunderstorm Watch 591

5 years 11 months ago
WW 591 SEVERE TSTM PA 172005Z - 180000Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 591 NWS Storm Prediction Center Norman OK 405 PM EDT Sat Aug 17 2019 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western and northern Pennsylvania * Effective this Saturday afternoon and evening from 405 PM until 800 PM EDT. * Primary threats include... Scattered damaging wind gusts to 65 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...A few supercells have developed across northwest into north-central Pennsylvania and should move east-southeast over the next few hours, before weakening across the southern portion of the state. The severe thunderstorm watch area is approximately along and 35 statute miles north and south of a line from 35 miles north northwest of Pittsburgh PA to 20 miles northeast of Williamsport PA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU1). 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. && OTHER WATCH INFORMATION...CONTINUE...WW 590... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 28025. ...Grams Read more

SPC Severe Thunderstorm Watch 590 Status Reports

5 years 11 months ago
WW 0590 Status Updates
STATUS REPORT ON WW 590 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 ENE CDR TO 30 SW PHP TO 35 SSW PIR TO 30 WSW ABR TO 55 NNW VVV. ..GLEASON..08/17/19 ATTN...WFO...UNR...ABR... STATUS REPORT FOR WS 590 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS SDC007-013-017-025-037-049-059-065-069-071-075-085-091-095-115- 121-123-172340- SD . SOUTH DAKOTA COUNTIES INCLUDED ARE BENNETT BROWN BUFFALO CLARK DAY FAULK HAND HUGHES HYDE JACKSON JONES LYMAN MARSHALL MELLETTE SPINK TODD TRIPP THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

SPC Severe Thunderstorm Watch 590

5 years 11 months ago
WW 590 SEVERE TSTM SD 171920Z - 180200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 590 NWS Storm Prediction Center Norman OK 220 PM CDT Sat Aug 17 2019 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of South Dakota * Effective this Saturday afternoon and evening from 220 PM until 900 PM CDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph possible SUMMARY...Initial storms over the Black Hills and northeast along a front in north-central South Dakota will pose a threat for mainly large hail. With time into the evening, one or more clusters is anticipated with an increasing risk for severe wind gusts. The severe thunderstorm watch area is approximately along and 85 statute miles east and west of a line from 65 miles south of Philip SD to 35 miles north northeast of Aberdeen SD. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). 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 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26025. ...Grams Read more

SPC MD 1774

5 years 11 months ago
MD 1774 CONCERNING SEVERE THUNDERSTORM WATCH 591... FOR WESTERN PENNSYLVANIA INTO NORTHEAST PENNSYLVANIA
Mesoscale Discussion 1774 NWS Storm Prediction Center Norman OK 0544 PM CDT Sat Aug 17 2019 Areas affected...western Pennsylvania into northeast Pennsylvania Concerning...Severe Thunderstorm Watch 591... Valid 172244Z - 180045Z The severe weather threat for Severe Thunderstorm Watch 591 continues. SUMMARY...Storms capable of marginally severe hail and wind continue to move east/southeast across western, central, and northeast Pennsylvania. DISCUSSION...As an upper-level shortwave trough moves eastward across the eastern Great Lakes and southern Ontario/Quebec, storms developed along its southern/southeast periphery across Pennsylvania. CAPPI 7 and 9 km are trending mostly downward except for the storm in far northeast Pennsylvania south/southwest of BGM. However, there still remains some potential for marginally severe wind and hail with the stronger storms. A couple of storms could move out of the watch, but a local watch extension/expansion is unlikely at this time given the recent convective trends and expected waning storm intensity after sunset. Counties will continue to be cleared behind the broken line of storms until the watch expiration at 00z. ..Nauslar/Guyer.. 08/17/2019 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PHI...BGM...CTP...PBZ... LAT...LON 40277976 40647995 40987986 41137968 41227855 41337776 41497722 41857641 42027593 41957524 41837513 41247554 40517624 40377795 40297916 40277976 Read more

SPC Severe Thunderstorm Watch 592 Status Reports

5 years 11 months ago
WW 0592 Status Updates
STATUS REPORT ON WW 592 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..GLEASON..08/17/19 ATTN...WFO...GLD... STATUS REPORT FOR WS 592 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC017-063-125-172340- CO . COLORADO COUNTIES INCLUDED ARE CHEYENNE KIT CARSON YUMA KSC023-039-063-065-109-137-153-179-181-193-199-172340- KS . KANSAS COUNTIES INCLUDED ARE CHEYENNE DECATUR GOVE GRAHAM LOGAN NORTON RAWLINS SHERIDAN SHERMAN THOMAS WALLACE NEC057-087-145-172340- NE . NEBRASKA COUNTIES INCLUDED ARE DUNDY HITCHCOCK RED WILLOW Read more
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5 years 9 months ago
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