Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
¿Todavía tiene costos relacionados a un funeral a consecuencia de COVID-19?
Ver mas
Main navigation
Buscar
2 months ago
MD 1739 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR EASTERN MT/FAR NORTHEAST WY/WESTERN ND/WESTERN SD
Mesoscale Discussion 1739
NWS Storm Prediction Center Norman OK
0445 PM CDT Sun Jul 20 2025
Areas affected...Eastern MT/far northeast WY/western ND/western SD
Concerning...Severe potential...Watch possible
Valid 202145Z - 202315Z
Probability of Watch Issuance...60 percent
SUMMARY...Severe thunderstorm potential will increase initially
across east/southeast Montana and possibly far northeast Wyoming
into the far western Dakotas through early evening.
DISCUSSION...Storms have shown recent signs of intensification
within a semi-moist/moderately unstable corridor from east-central
Montana into southwest North Dakota, with additional towering cu
noted in visible satellite imagery across southeast Montana. The
region is being influenced by a shortwave trough over
Alberta/Saskatchewan and a related belt of low-amplitude westerlies,
contributing to 40+ kt effective shear. Scenario will support at
least isolated severe storm development including some initial
supercells with the potential for large hail and severe-caliber wind
gusts. Convective trends are being monitored for a possible Watch.
..Guyer/Hart.. 07/20/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ABR...BIS...UNR...BYZ...GGW...
LAT...LON 47570601 47840329 47310175 45600136 44770222 44560357
44620665 46370753 47570601
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
Read more
2 months ago
WW 0533 Status Updates
STATUS FOR WATCH 0533 HAS NOT BEEN ISSUED YET
Read more
2 months ago
WW 533 SEVERE TSTM IL IN 202310Z - 210500Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 533
NWS Storm Prediction Center Norman OK
610 PM CDT Sun Jul 20 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southeast Illinois
Southern Indiana
* Effective this Sunday night from 610 PM until Midnight CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A cluster of intense thunderstorms has formed in southeast
Illinois. These storms are expected to track southeastward this
evening across the watch area. Damaging winds are the main concern.
The severe thunderstorm watch area is approximately along and 40
statute miles north and south of a line from 30 miles south
southwest of Mattoon IL to 30 miles north northeast of Louisville
KY. 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 530...WW 531...WW 532...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29030.
...Hart
Read more
2 months ago
WW 0532 Status Updates
STATUS FOR WATCH 0532 HAS NOT BEEN ISSUED YET
Read more
2 months ago
WW 0531 Status Updates
STATUS FOR WATCH 0531 HAS NOT BEEN ISSUED YET
Read more
2 months ago
MD 1738 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR SOUTH-CENTRAL SOUTH DAKOTA ACROSS WESTERN NEBRASKA AND TOWARD NORTHWEST KANSAS
Mesoscale Discussion 1738
NWS Storm Prediction Center Norman OK
0241 PM CDT Sun Jul 20 2025
Areas affected...south-central South Dakota across western Nebraska
and toward northwest Kansas
Concerning...Severe potential...Watch possible
Valid 201941Z - 202215Z
Probability of Watch Issuance...60 percent
SUMMARY...Scattered severe storms appear likely later this afternoon
from south-central SD across west-central NE and toward northwest
KS. A few cells may produce large hail, with locally damaging gusts.
A tornado is possible over southern SD into far northern NE after
23Z. A portion of the area may require a watch.
DISCUSSION...Surface map shows low pressure extending from southwest
SD across western NE and into the CO/KS border area, with strong
heating. This trough will continue to deepen, and sufficient
convergence within the uncapped air mass should allow for widely
scattered storms to develop late this afternoon.
Of particular note is the warm front area which currently curls
northwestward out of northern NE and into south-central SD. Here,
heating is occurring on the cool side of the boundary, where
dewpoints remain above 70 F and low-level shear is enhanced. Any
supercell that develops here, most likely after 23Z, could be
tornadic at times, and produce very large hail as it proceeds
southeastward, aided by a modest evening low-level jet.
Farther south into the deeper/heated air mass, higher based storms
are expected, and overall shear is weaker as well. However, steep
lapse rates will favor locally severe gusts, and even some hail in
the early and robust formation stages.
..Jewell/Smith.. 07/20/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ABR...LBF...UNR...GLD...BOU...
LAT...LON 42940011 41680031 40480068 39280162 39210233 40430230
41640217 42900209 43440215 43740228 44020246 44250227
44360152 44250113 43880051 42940011
MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
2 months ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0456 PM CDT Sun Jul 20 2025
Valid 221200Z - 281200Z
A mid-level trough with enhanced mid-level flow is forecast to
remain across the Pacific Northwest early in the extended period,
before ejecting across the northern Rockies and into Canada through
midweek. A portion of this trough is progged to remain as a cutoff
low off the California coast Day 4/Wednesday through Day 6/Friday. A
secondary trough will deepen across the Western United States next
weekend.
...D3/Tuesday - D4/Wednesday...
Some locally dry and breezy conditions are expected Day 3/Tuesday
across much of the Great Basin. Though, relaxing mid-level winds and
reduced surface pressure gradients should limit widespread fire
weather concerns which precludes the need to include any areas at
this time. Afternoon relative humidity will remain low, in the 10-20
percent range across much of the Great Basin and southwest.
D3/Tuesday a mix of wet/dry thunderstorms is possible across the
Northwest as increasing moisture associated with the aforementioned
trough overspreads the area. While forecast guidance suggests
precipitable water values may be relatively high (0.8 - 1+ inch),
storm motions will be around 10-20 mph. Critically receptive fuels
may support new ignitions outside of heavier cores. Overall,
probabilities/coverage remain too low to include areas at this time.
Dry thunderstorm potential may return across the western United
States by Day 5/Thursday and D6/Friday as the aforementioned cutoff
low begins to move onshore. As moisture increases, these are likely
to be mostly wet thunderstorms though lightning efficiency will
increase. As such, no dry thunderstorm areas have been included at
this time.
..Thornton.. 07/20/2025
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
Checked
5 years 11 months ago
Storm Prediction Center
Subscribe to Severe Storms feed