WW 521 SEVERE TSTM IL IN 271840Z - 280100Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 521
NWS Storm Prediction Center Norman OK
240 PM EDT Mon Jul 27 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
East Central Illinois
Central Indiana
* Effective this Monday afternoon and evening from 240 PM until
900 PM EDT.
* Primary threats include...
Widespread damaging winds and isolated significant gusts to 80
mph likely
Isolated very large hail events to 2 inches in diameter possible
A tornado or two possible
SUMMARY...An intensifying cluster of thunderstorms over northwest
Indiana will track southward this afternoon through a very moist and
unstable air mass. Severe wind gusts are expected along the leading
edge of the storms, along with some risk of large hail and a tornado
or two.
The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 15 miles north northeast
of Lafayette IN to 35 miles south of Bloomington IN. 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 519...WW 520...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
31035.
...Hart
WW 520 SEVERE TSTM IL IN MI LM 271645Z - 280000Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 520
NWS Storm Prediction Center Norman OK
1245 PM EDT Mon Jul 27 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Illinois
Northern Indiana
Western Lower Michigan
Lake Michigan
* Effective this Monday afternoon and evening from 1245 PM until
800 PM EDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...Clusters of thunderstorms will track southeastward through
the afternoon across the watch area. Damaging winds, large hail,
and even a tornado or two are possible.
The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 70 miles north of
Muskegon MI to 60 miles south southeast of Valparaiso IN. 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 519...
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 500. Mean storm motion vector
31030.
...Hart
WW 0522 Status Updates
STATUS FOR WATCH 0522 HAS NOT BEEN ISSUED YET
WW 0521 Status Updates
STATUS FOR WATCH 0521 HAS NOT BEEN ISSUED YET
WW 0520 Status Updates
STATUS REPORT ON WW 520
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNE MSN
TO 5 E MKE TO 15 NE BEH TO 30 NE FWA.
..LEITMAN..07/27/26
ATTN...WFO...LOT...IWX...GRR...MKX...
STATUS REPORT FOR WS 520
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC031-043-075-091-097-197-272140-
IL
. ILLINOIS COUNTIES INCLUDED ARE
COOK DUPAGE IROQUOIS
KANKAKEE LAKE WILL
INC003-007-017-033-039-049-069-073-085-087-089-091-099-103-111-
113-127-131-141-149-169-181-183-272140-
IN
. INDIANA COUNTIES INCLUDED ARE
ALLEN BENTON CASS
DE KALB ELKHART FULTON
HUNTINGTON JASPER KOSCIUSKO
LAGRANGE LAKE LA PORTE
MARSHALL MIAMI NEWTON
NOBLE PORTER PULASKI
ST. JOSEPH STARKE WABASH
WHITE WHITLEY
WW 0519 Status Updates
STATUS REPORT ON WW 519
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 ESE AUW
TO 25 NNE GRB TO 50 WNW TVC.
..LEITMAN..07/27/26
ATTN...WFO...MQT...GRB...
STATUS REPORT FOR WS 519
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
WIC009-015-061-071-087-115-271740-
WI
. WISCONSIN COUNTIES INCLUDED ARE
BROWN CALUMET KEWAUNEE
MANITOWOC OUTAGAMIE SHAWANO
LMZ522-541-542-543-563-565-567-271740-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
GREEN BAY SOUTH OF LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI
ROCK ISLAND PASSAGE TO STURGEON BAY WI
STURGEON BAY TO TWO RIVERS WI
TWO RIVERS TO SHEBOYGAN WI
LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI 5NM
OFFSHORE TO MID LAKE
MD 1770 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR PORTIONS OF EASTERN IN INTO WESTERN OH
Mesoscale Discussion 1770
NWS Storm Prediction Center Norman OK
0348 PM CDT Mon Jul 27 2026
Areas affected...portions of eastern IN into western OH
Concerning...Severe potential...Watch possible
Valid 272048Z - 272245Z
Probability of Watch Issuance...60 percent
SUMMARY...Severe potential could spread southeast into parts of
western Ohio over the next couple of hours. Trends are being
monitored and a downstream severe thunderstorm watch could be
needed.
DISCUSSION...A cluster of storms over central Indiana have shown
some indications of intensification over the past 30 minutes both in
radar imagery and based on recent local storm reports relaying gusts
near 60 mph and localized wind damage. This activity will continue
to spread east/southeast along a strong instability gradient within
enhanced northwesterly flow aloft. While the environment overall is
favorable for organized severe convection, uncertainty remains given
persistent cloud cover across western OH and some indications of
continued capping per SPC mesoanalysis. Nevertheless, temperatures
in the 80s across far southwest OH and dewpoints in the low/mid 70s
F could support at least sporadic strong gusts. Trends will be
monitored for possible watch issuance over the next 1-2 hours.
..Leitman/Hart.. 07/27/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ILN...IWX...IND...
LAT...LON 41048484 40858440 40558385 40018361 39518355 39118381
39128459 39268518 39828585 40388634 40668615 40948587
41118556 41048484
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
MD 1769 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR PORTIONS OF CENTRAL IL
Mesoscale Discussion 1769
NWS Storm Prediction Center Norman OK
0258 PM CDT Mon Jul 27 2026
Areas affected...portions of central IL
Concerning...Severe potential...Watch possible
Valid 271958Z - 272130Z
Probability of Watch Issuance...40 percent
SUMMARY...Isolated strong wind gusts or hail could accompany
stronger storms this afternoon. The need for a watch remains
uncertain.
DISCUSSION...Widely scattered thunderstorms are developing ahead of
a surface trough across central IL within a very moist and unstable
airmass. Strong northwesterly flow aloft is fostering 45+ kt
effective shear magnitudes, which could support organized
convection. However, large-scale ascent is nebulous across the area.
Furthermore, looping visible satellite imagery shows a broadening
cirrus shield over eastern IL associated with convection further
east, and possible outflow/gravity waves spreading westward. It is
uncertain if this may be helping initiate convection or will temper
more robust development. While the overall thermodynamic/kinematic
profiles across the area generally would support some severe risk,
uncertainty is high. Trends will be monitored, and if intensity
increases, WW 520 and 521 could be expanded westward, or a new watch
issued if needed.
..Leitman/Hart.. 07/27/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...LOT...ILX...DVN...
LAT...LON 41008800 40478795 40108837 40028887 40008938 40108989
40479040 40869041 41018977 41218875 41258823 41008800
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
MD 1768 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR NORTHEAST COLORADO INTO NORTHWEST KANSAS AND SOUTHWEST NEBRASKA
Mesoscale Discussion 1768
NWS Storm Prediction Center Norman OK
0241 PM CDT Mon Jul 27 2026
Areas affected...Northeast Colorado into northwest Kansas and
southwest Nebraska
Concerning...Severe potential...Watch possible
Valid 271941Z - 272145Z
Probability of Watch Issuance...40 percent
SUMMARY...Thunderstorm development across parts of the central High
Plains appears probable in the coming hours. Deep boundary-layer
mixing coupled with ample buoyancy will likely yield a few
strong/severe thunderstorms capable of severe wind gusts. Trends
will be monitored for the need for watch issuance.
DISCUSSION...Latest GOES imagery and regional radars show gradual
deepening of cumulus and shallow convective showers/weak
thunderstorms across far eastern CO into adjacent portions of
northwest KS and southwest NE. This activity appears to largely be
driven by very weak ascent along and north of a stalled baroclinic
zone and ahead of a weak mid-level disturbance. Residual capping is
slowly eroding across the region as temperatures breach 100 F. As
temperatures continue to warm, thunderstorm coverage and intensity
may increase, though confidence on overall storm coverage is limited
given the weak forcing for ascent. Regardless, thunderstorms that
can develop will likely mature within a thermodynamic environment
featuring MLCAPE values upwards of 1500-2500 J/kg and deep
boundary-layer mixing up to 2-3 km, which should favor robust
updrafts and accelerating downdrafts. Consequently, strong to severe
winds will be possible, and modest deep-layer wind shear may support
some storm organization and the potential for loosely organized
clusters. Limited confidence on thunderstorm coverage casts
uncertainty on the need for watch issuance, but trends will continue
to be monitored.
..Moore/Hart.. 07/27/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...GID...LBF...GLD...BOU...
LAT...LON 39210087 38890243 39090288 39440318 39940301 40540186
40730121 40810067 40450013 40079985 39789984 39609998
39370031 39210087
MOST PROBABLE PEAK WIND GUST...55-70 MPH
SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook CORR 1
NWS Storm Prediction Center Norman OK
1149 AM CDT Mon Jul 27 2026
Valid 271630Z - 281200Z
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE MIDWEST...
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE CENTRAL
HIGH PLAINS...
CORRECTED FOR THUNDERSTORM LINES
...SUMMARY...
Severe storms capable of strong to severe wind gusts and large hail
are expected across the Great Lakes and Midwest through tonight.
More sporadic occurrences of damaging wind are possible in the
Mid-Atlantic, Tennessee Valley, central High Plains, and southeast
Arizona.
...Midwest/Ohio Valley...
A large upper ridge remains present today over the central
Plains/Rockies, with moderately strong northwest flow aloft from the
Midwest into the OH Valley. A very moist and unstable low-level air
mass resides from WI/IL into MI/IN/OH, where mostly clear skies will
result in hot afternoon temperatures and MLCAPE values over 3000
J/kg. Multiple clusters of intense thunderstorms are ongoing over
parts of WI tracking southeastward. These storms will move through
this reservoir of high CAPE, leading to the potential for an active
severe weather event today. However, details of how these clusters
evolve are uncertain.
Vertical shear across this region will support supercell structures,
capable of damaging winds, hail, and isolated tornadoes this
afternoon. However, the greater concern is if storms can congeal
into a southeastward bowing system and that sweeps across Lower MI,
eastern IL, IN, and western OH. Several morning CAM solutions
indicate that risk, with storms spreading into KY overnight before
weakening. Unfortunately, this synoptic pattern does not lend
itself to a high-confidence convective forecast.
...High Plains...
Widespread clouds are affecting parts of western NE this morning.
However, strong heating will occur north and south of these clouds,
leading to afternoon thunderstorms. The most active area will
likely be over the Black Hills region where damaging winds and hail
are possible. Farther south, widely scattered high-based
thunderstorms will affect eastern CO/western KS with a risk of
damaging wind gusts.
..Hart/Moore.. 07/27/2026
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0258 PM CDT Mon Jul 27 2026
Valid 272000Z - 281200Z
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE LOWER GREAT LAKES AND MIDWEST STATES...
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF THE
CENTRAL AND NORTHERN HIGH PLAINS....
...SUMMARY...
Severe storms capable of strong to severe wind gusts and large hail
are expected across the Great Lakes and Midwest through tonight.
More sporadic occurrences of damaging wind are possible in the
Mid-Atlantic, Tennessee Valley, central High Plains, and southeast
Arizona.
...20z Update IL/IN...
An evolving convective cluster across northern IL/IN and southern
lower MI should continue to move south/southeast this afternoon.
Low-level convergence is maximized along a weak CAPE/ThetaE gradient
laying roughly near the IN/OH border. CAM guidance and observation
trends suggest this may provide a focus for convection through this
afternoon and evening gradually turning the cluster further
southward. Moderate buoyancy and 40+ kt of deep-layer shear parallel
to the boundary could support organized linear/bowing structures
with severe/damaging gusts and perhaps some QLCS tornadoes possible
across northern IN and possibly extending into western OH. However,
leading stratiform and cloud cover could limit the eastern extent of
the higher severe risk, and confidence in the convective evolution
is very low.
Additional development has been noted along the western flank of the
complex over northern IL, with another cluster of storms exiting
southern WI. It is possible that these new storms, and additional
ascent tied to a westerly low-level jet will support a second
cluster of severe storms eventually organizing and moving more south
across IL/IN. Hot surface temperatures (90-95 F) and a very large
reservoir of extreme buoyancy (MUCAPE 4000-5000 J/kg) extending into
IL and western IN would support a risk for widespread
severe/damaging gusts. Given the increased confidence in damaging
winds this afternoon/evening, have shifted 30% wind probabilities
farther south in IN.
...Central and northern High Plains...
Scattered storms ongoing over the high plains should increase in
coverage and intensity this afternoon. Steep mid-level lapse rates
could promote severe wind gusts with stronger downdrafts, along with
isolated hail. Minimal changes were made to the prior outlook, see
MCD#1767 and MCD#1768 for more information.
Additional scattered thunderstorms are ongoing over parts of the Mid
Atlantic/Southeast and southern AZ. These storms should continue
this afternoon with potential for sporadic damaging gusts owing to
heavy water loading and moderate buoyancy. Limited vertical shear
and only modest clustering suggest severe potential will remain
isolated before diminishing overnight.
..Lyons.. 07/27/2026
.PREV DISCUSSION... /ISSUED 1149 AM CDT Mon Jul 27 2026/
...Midwest/Ohio Valley...
A large upper ridge remains present today over the central
Plains/Rockies, with moderately strong northwest flow aloft from the
Midwest into the OH Valley. A very moist and unstable low-level air
mass resides from WI/IL into MI/IN/OH, where mostly clear skies will
result in hot afternoon temperatures and MLCAPE values over 3000
J/kg. Multiple clusters of intense thunderstorms are ongoing over
parts of WI tracking southeastward. These storms will move through
this reservoir of high CAPE, leading to the potential for an active
severe weather event today. However, details of how these clusters
evolve are uncertain.
Vertical shear across this region will support supercell structures,
capable of damaging winds, hail, and isolated tornadoes this
afternoon. However, the greater concern is if storms can congeal
into a southeastward bowing system and that sweeps across Lower MI,
eastern IL, IN, and western OH. Several morning CAM solutions
indicate that risk, with storms spreading into KY overnight before
weakening. Unfortunately, this synoptic pattern does not lend
itself to a high-confidence convective forecast.
...High Plains...
Widespread clouds are affecting parts of western NE this morning.
However, strong heating will occur north and south of these clouds,
leading to afternoon thunderstorms. The most active area will
likely be over the Black Hills region where damaging winds and hail
are possible. Farther south, widely scattered high-based
thunderstorms will affect eastern CO/western KS with a risk of
damaging wind gusts.
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1234 PM CDT Mon Jul 27 2026
Valid 281200Z - 291200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM THE SOUTHERN
MID ATLANTIC INTO THE CAROLINAS AND PARTS OF THE APPALACHIANS...
...SUMMARY...
Severe thunderstorms capable of damaging winds and isolated hail are
possible from the southern Mid-Atlantic into the Carolinas and parts
of the Appalachians Tuesday into Tuesday evening. A tornado threat
may develop from southeast Virginia into eastern North Carolina.
Isolated severe wind gusts and large hail may occur in the central
High Plains.
...Southern Mid Atlantic / Appalachians / Carolinas...
An upper trough will gradually deepen and move southeastward across
the Mid Atlantic, with the left-front quadrant of the upper jet
moving across VA and NC. At the surface, low pressure will deepen
ahead of a cold front, with wind shift roughly from eastern PA into
central VA and NC during the afternoon.
A moist and unstable air mass will develop across the region, and
shear profiles will become increasingly favorable for supercells.
The most favorable combination of shear and instability looks to be
from parts of eastern VA into east-central/northeast NC. Here, 850
mb winds will increase out of the southwest to around 30 kt, with
effective SRH possibly into the 200-300 m2/s2 range. A tornado or
two is possible, with perhaps a transition to bows producing
damaging winds. This area will be watched closely into the Day 1
period.
Farther north and also within the surface trough, shear will be
weaker aloft. However, favorable low-level shear may yield a brief
tornado as well into eastern PA/NJ.
Otherwise, additional storms are likely across the Appalachians as
surface heating occurs beneath the relatively cool temperatures
aloft. Low-level winds will be more veered in these areas, but long
hodographs and substantial instability will still favor hail and
locally damaging winds.
...Central High Plains...
Strong heating will occur under the upper ridge, with a weak lee
trough developing. Surface winds will back to easterly late in the
day and evening, which will increase upslope-flow and yield a
moderately unstable environment by afternoon with MLCAPE of
1500-2500 J/kg. This will support scattered thunderstorm development
along the high terrain within a kinematic environment featuring
30-35 kt westerly deep-layer shear. Transient supercell structures
appear possible, which suggest some marginally severe hail potential
despite the warm mid-level temperatures. Generally mixed-modes
should persist into the evening into eastern CO and far western NE
with locally strong gusts.
..Jewell.. 07/27/2026
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0220 PM CDT Mon Jul 27 2026
Valid 291200Z - 301200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM SOUTHERN
GEORGIA AND ALABAMA INTO THE FLORIDA PANHANDLE AND NORTHERN
FLORIDA...
...SUMMARY...
Isolated severe storms capable of mainly damaging winds appear
possible Wednesday over parts of southern Georgia and Alabama, and
over much of northern Florida. A few severe storms are also possible
over the central High Plains late in the day.
...Southeast...
The upper trough over the eastern states will generally weaken as
the low occludes over the Northeast. A surface low will redevelop
over the Atlantic, with drier air spreading southeast across much of
the eastern seaboard behind a cold front.
Southern portions of the cold front will proceed southward across
GA, AL, and into FL, and the corridor immediately ahead of this
front will have severe wind potential. Strong heating will occur
while a ribbon of 70s F dewpoints are maintained. Tall instability
profiles per forecast soundings and MLCAPE over 3000 J/kg will favor
high echo tops and possible water-loaded severe downbursts. Shear
will be weak, but the general northwest flow regime on the far
southern periphery of the upper trough will aid southeastward storm
motion and locally severe wind gusts during the afternoon.
...Northern/Central High Plains...
A lee trough will develop over eastern MT/WY into the western
Dakotas as a minor disturbance rounds the upper ridge and enhances
deep-layer shear late in the day. Mid 50s to near 60 F dewpoints
will contribute to up to 2000 J/kg MLCAPE, and lapse rates will be
relatively steep through a deep layer. Storms are likely to form
along the length of the surface trough across eastern MT and WY,
with activity spreading eastward into the western Dakotas during the
evening. The deeply mixed boundary layer should support strong
outflow, which may be locally damaging. Sporadic marginal hail
cannot be ruled out as well.
..Jewell.. 07/27/2026
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
1146 AM CDT Mon Jul 27 2026
Valid 271700Z - 281200Z
The forecast remains on track for elevated fire weather conditions
across portions of the northwestern CONUS. Poor to marginal
overnight humidity recoveries and daytime heating will contribute to
critical RH values of 10-15% this afternoon amid southwesterly winds
of 10-15 mph (gusts up to 25 mph). Meteorological conditions will
overlap a very dry, drought-stressed fuelscape (80-95th percentile
ERCs) with multiple ongoing large wildfires. Any lightning holdovers
from thunderstorms last week/weekend may also emerge as a result of
hot, dry, and breezy conditions.
..Elizalde-Garcia.. 07/27/2026
.PREV DISCUSSION... /ISSUED 1124 PM CDT Sun Jul 26 2026/
...Synopsis...
An upper ridge will remain in place over the western CONUS today,
with modest mid-level flow poised to pivot around the ridge during
the afternoon hours, when a deep and dry boundary layer will
encourage downward momentum transport of the stronger flow aloft.
The most likely location for boundary-layer mixing and associated
stronger surface winds will be across the northern Sierra into the
northern Rockies, where southwesterly surface winds may occasionally
exceed 15 mph amid 20 percent RH and dry fuels. As such, Elevated
highlights have been maintained.
...Please see www.spc.noaa.gov/fire for graphic product...
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0207 PM CDT Mon Jul 27 2026
Valid 281200Z - 291200Z
...NO CRITICAL AREAS...
On Day 2/Tuesday, occasionally breezy southwesterly winds of 10-15
mph amid RH values of 15-25% may generate locally elevated fire
weather concerns across the Columbia Basin and portions of the
northern Rockies where fuels remain dry. Please see the previous
discussion for additional information.
..Elizalde-Garcia.. 07/27/2026
.PREV DISCUSSION... /ISSUED 1125 PM CDT Sun Jul 26 2026/
...Synopsis...
Another day of mid-level ridging will characterize the upper-air
pattern for the western CONUS tomorrow (Tuesday). As in the past
couple of days, upper flow pivoting around the ridge should continue
to weaken in intensity, supporting a weaker surface wind field in
turn. Widespread dry conditions are expected across western portions
of the Great Basin toward the Pacific Northwest and northern
Rockies. Nonetheless, the lack of a stronger surface wind field
precludes fire weather highlights at this time.
...Please see www.spc.noaa.gov/fire for graphic product...
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