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6 years ago
WW 0592 Status Updates
STATUS REPORT ON WW 592
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 SSE ITR
TO 20 ESE ITR TO 50 W HLC TO 45 S HLC.
WW 592 WILL BE ALLOWED TO EXPIRE AT 180400Z.
..GLEASON..08/18/19
ATTN...WFO...GLD...
STATUS REPORT FOR WS 592
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC063-109-179-181-193-199-180400-
KS
. KANSAS COUNTIES INCLUDED ARE
GOVE LOGAN SHERIDAN
SHERMAN THOMAS WALLACE
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
6 years ago
WW 0592 Status Updates
STATUS REPORT ON WW 592
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 SSE ITR
TO 20 ESE ITR TO 50 W HLC TO 45 S HLC.
WW 592 WILL BE ALLOWED TO EXPIRE AT 180400Z.
..GLEASON..08/18/19
ATTN...WFO...GLD...
STATUS REPORT FOR WS 592
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC063-109-179-181-193-199-180400-
KS
. KANSAS COUNTIES INCLUDED ARE
GOVE LOGAN SHERIDAN
SHERMAN THOMAS WALLACE
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
6 years ago
WW 0592 Status Updates
STATUS REPORT ON WW 592
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 SSE ITR
TO 20 ESE ITR TO 50 W HLC TO 45 S HLC.
WW 592 WILL BE ALLOWED TO EXPIRE AT 180400Z.
..GLEASON..08/18/19
ATTN...WFO...GLD...
STATUS REPORT FOR WS 592
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC063-109-179-181-193-199-180400-
KS
. KANSAS COUNTIES INCLUDED ARE
GOVE LOGAN SHERIDAN
SHERMAN THOMAS WALLACE
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
6 years ago
WW 0594 Status Updates
STATUS REPORT ON WW 594
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 SSW HLC
TO 20 S HLC TO 25 NE RSL TO 15 NW CNK.
..GLEASON..08/18/19
ATTN...WFO...ICT...TOP...DDC...GID...
STATUS REPORT FOR WS 594
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC009-017-027-029-041-051-053-061-079-105-113-115-123-127-135-
143-145-155-159-161-165-167-169-185-195-180440-
KS
. KANSAS COUNTIES INCLUDED ARE
BARTON CHASE CLAY
CLOUD DICKINSON ELLIS
ELLSWORTH GEARY HARVEY
LINCOLN MCPHERSON MARION
MITCHELL MORRIS NESS
OTTAWA PAWNEE RENO
RICE RILEY RUSH
RUSSELL SALINE STAFFORD
TREGO
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
6 years ago
WW 0595 Status Updates
STATUS REPORT ON WW 595
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1780
..GLEASON..08/18/19
ATTN...WFO...FSD...DMX...MPX...
STATUS REPORT FOR WS 595
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC021-025-033-041-059-063-069-079-081-083-091-109-147-151-161-
187-189-195-197-180440-
IA
. IOWA COUNTIES INCLUDED ARE
BUENA VISTA CALHOUN CERRO GORDO
CLAY DICKINSON EMMET
FRANKLIN HAMILTON HANCOCK
HARDIN HUMBOLDT KOSSUTH
PALO ALTO POCAHONTAS SAC
WEBSTER WINNEBAGO WORTH
WRIGHT
MNC013-015-019-043-047-079-085-091-103-131-139-143-147-161-165-
180440-
MN
. MINNESOTA COUNTIES INCLUDED ARE
BLUE EARTH BROWN CARVER
FARIBAULT FREEBORN LE SUEUR
MCLEOD MARTIN NICOLLET
Read more
6 years ago
MD 1780 CONCERNING SEVERE THUNDERSTORM WATCH 593...595... FOR PORTIONS OF FAR SOUTHEASTERN SD...SOUTHERN MN...NORTHEASTERN NE...AND NORTHERN IA
Mesoscale Discussion 1780
NWS Storm Prediction Center Norman OK
1032 PM CDT Sat Aug 17 2019
Areas affected...Portions of far southeastern SD...southern
MN...northeastern NE...and northern IA
Concerning...Severe Thunderstorm Watch 593...595...
Valid 180332Z - 180500Z
The severe weather threat for Severe Thunderstorm Watch 593, 595
continues.
SUMMARY...A strong to damaging wind threat may continue eastward out
of Severe Thunderstorm Watch 593 this evening. A new watch has been
issued into southern Minnesota and northern Iowa to address this
potential.
DISCUSSION...A well-organized but small bowing thunderstorm cluster
is progressing east-southeastward around 40 kt across far
southeastern SD as of 0330Z. Multiple strong to severe wind gusts of
55-65 mph have been measured by various observing sites across this
area over the past couple of hours, with KFSD reporting a gust to 47
mph at 0306Z. Although instability gradually decreases with eastward
extent into southern MN and north-central IA, a modestly enhanced
southwesterly low-level jet should aid continued storm organization
and intensity through the remainder of the evening and into the
early overnight hours. Given the ongoing linear convective mode,
strong to damaging winds will likely remain the primary threat.
Additional convective development along a cold front may occur into
parts of northeastern NE into northwestern and west-central IA.
..Gleason/Guyer.. 08/18/2019
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MPX...DMX...FSD...OAX...LBF...
LAT...LON 42189682 42249922 42439922 42999803 43309729 43609682
44049677 44339667 44929482 44959417 44799341 44239309
42189303 42179534 42189682
Read more
6 years ago
WW 0593 Status Updates
STATUS REPORT ON WW 593
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 N ANW TO
35 SE 9V9 TO 25 S MHE TO 25 SE MHE TO 25 E MHE TO 30 SSW ATY TO
40 W RWF TO 30 NNW RWF TO 30 SSE AXN.
..GLEASON..08/18/19
ATTN...WFO...FSD...ABR...MPX...FGF...OAX...LBF...
STATUS REPORT FOR WS 593
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC035-093-119-141-143-149-167-193-180340-
IA
. IOWA COUNTIES INCLUDED ARE
CHEROKEE IDA LYON
O'BRIEN OSCEOLA PLYMOUTH
SIOUX WOODBURY
MNC033-063-067-081-083-093-101-105-117-127-129-133-173-180340-
MN
. MINNESOTA COUNTIES INCLUDED ARE
COTTONWOOD JACKSON KANDIYOHI
LINCOLN LYON MEEKER
MURRAY NOBLES PIPESTONE
REDWOOD RENVILLE ROCK
YELLOW MEDICINE
NEC003-015-027-043-051-089-103-107-139-179-180340-
Read more
6 years ago
WW 0592 Status Updates
STATUS REPORT ON WW 592
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 WSW ITR
TO 15 ESE ITR TO 30 E GLD TO 45 NNE HLC.
..NAUSLAR..08/18/19
ATTN...WFO...GLD...
STATUS REPORT FOR WS 592
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC039-063-065-109-137-179-181-193-199-180340-
KS
. KANSAS COUNTIES INCLUDED ARE
DECATUR GOVE GRAHAM
LOGAN NORTON SHERIDAN
SHERMAN THOMAS WALLACE
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
6 years ago
WW 592 SEVERE TSTM CO KS NE 172035Z - 180400Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 592
NWS Storm Prediction Center Norman OK
335 PM CDT Sat Aug 17 2019
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Far eastern Colorado
Northwest Kansas
Far southwestern Nebraska
* Effective this Saturday afternoon and evening from 335 PM until
1100 PM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 80
mph possible
Isolated very large hail events to 2 inches in diameter possible
SUMMARY...A cluster of severe thunderstorms may develop off across
the tri-state area as high-based storms spread east from the Palmer
Divide in Colorado.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 35 miles west northwest
of Burlington CO to 55 miles southeast of Mccook NE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).
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...
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 500. Mean storm motion vector
27030.
...Grams
Read more
6 years ago
MD 1779 CONCERNING SEVERE THUNDERSTORM WATCH 592... FOR NORTHWEST KANSAS AND VICINITY
Mesoscale Discussion 1779
NWS Storm Prediction Center Norman OK
0910 PM CDT Sat Aug 17 2019
Areas affected...northwest Kansas and vicinity
Concerning...Severe Thunderstorm Watch 592...
Valid 180210Z - 180415Z
The severe weather threat for Severe Thunderstorm Watch 592
continues.
SUMMARY...The strongest storm has moved out of WW592 into WW594.
Elevated storms have redeveloped across Kit Carson, Sherman, and
Thomas counties and may pose a low-end severe threat in the next
hour or two.
DISCUSSION...Temperatures and dewpoints dropped across northeast
Colorado and northwest Kansas as storms passed through the area
earlier this evening with low-level stable conditions present.
However, some forcing for ascent aloft has helped elevated storms
redevelop across far eastern Colorado and northwest Kansas along the
I-70 corridor. MUCAPE of 1500-3000 J/kg and marginal effective bulk
shear could result in isolated, low-end severe hail and possibly
damaging wind if it can penetrate the low-level stable layer. GLD
VAD shows north-northeast winds at low-levels indicating limited
warm air advection/isentropic lift associated with the low-level jet
that is beginning to strengthen across the southern/central Plains.
Overall, the potential for severe hail/wind is limited across WW592
before it expires at 04z, but a strong storm or two is possible.
..Nauslar/Guyer.. 08/18/2019
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...DDC...GLD...
LAT...LON 38730042 38720145 38690197 38950213 39260217 39530150
39520015 39469977 39199963 39019994 38730042
Read more
6 years ago
WW 0592 Status Updates
STATUS REPORT ON WW 592
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..NAUSLAR..08/18/19
ATTN...WFO...GLD...
STATUS REPORT FOR WS 592
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC039-063-065-109-137-153-179-193-180240-
KS
. KANSAS COUNTIES INCLUDED ARE
DECATUR GOVE GRAHAM
LOGAN NORTON RAWLINS
SHERIDAN THOMAS
NEC087-145-180240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
HITCHCOCK RED WILLOW
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
6 years ago
WW 0593 Status Updates
STATUS REPORT ON WW 593
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNE ANW
TO 30 ESE 9V9 TO 10 SW HON TO 25 ESE VVV TO 25 N AXN.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1778
..GLEASON..08/18/19
ATTN...WFO...FSD...ABR...MPX...FGF...OAX...LBF...
STATUS REPORT FOR WS 593
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC035-093-119-141-143-149-167-193-180240-
IA
. IOWA COUNTIES INCLUDED ARE
CHEROKEE IDA LYON
O'BRIEN OSCEOLA PLYMOUTH
SIOUX WOODBURY
MNC023-041-073-081-083-101-105-117-121-133-151-173-180240-
MN
. MINNESOTA COUNTIES INCLUDED ARE
CHIPPEWA DOUGLAS LAC QUI PARLE
LINCOLN LYON MURRAY
NOBLES PIPESTONE POPE
ROCK SWIFT YELLOW MEDICINE
NEC003-015-027-043-051-089-103-107-139-179-180240-
Read more
6 years ago
WW 0590 Status Updates
STATUS REPORT ON WW 590
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSW 9V9
TO 9V9 TO 20 SW HON.
WW 590 WILL BE ALLOWED TO EXPIRE AT 180200Z.
..GLEASON..08/18/19
ATTN...WFO...UNR...ABR...
STATUS REPORT FOR WS 590
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
SDC017-085-180200-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BUFFALO LYMAN
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
6 years ago
WW 0590 Status Updates
STATUS REPORT ON WW 590
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSW 9V9
TO 9V9 TO 20 SW HON.
WW 590 WILL BE ALLOWED TO EXPIRE AT 180200Z.
..GLEASON..08/18/19
ATTN...WFO...UNR...ABR...
STATUS REPORT FOR WS 590
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
SDC017-085-180200-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BUFFALO LYMAN
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
6 years ago
WW 0590 Status Updates
STATUS REPORT ON WW 590
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSW 9V9
TO 9V9 TO 20 SW HON.
WW 590 WILL BE ALLOWED TO EXPIRE AT 180200Z.
..GLEASON..08/18/19
ATTN...WFO...UNR...ABR...
STATUS REPORT FOR WS 590
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
SDC017-085-180200-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BUFFALO LYMAN
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
6 years ago
WW 0590 Status Updates
STATUS REPORT ON WW 590
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSW 9V9
TO 9V9 TO 20 SW HON.
WW 590 WILL BE ALLOWED TO EXPIRE AT 180200Z.
..GLEASON..08/18/19
ATTN...WFO...UNR...ABR...
STATUS REPORT FOR WS 590
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
SDC017-085-180200-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BUFFALO LYMAN
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
6 years ago
MD 1778 CONCERNING SEVERE THUNDERSTORM WATCH 593... FOR PORTIONS OF EASTERN SD INTO WEST-CENTRAL AND SOUTHWESTERN MN...FAR NORTHEASTERN NE...AND FAR NORTHWESTERN IA
Mesoscale Discussion 1778
NWS Storm Prediction Center Norman OK
0826 PM CDT Sat Aug 17 2019
Areas affected...Portions of eastern SD into west-central and
southwestern MN...far northeastern NE...and far northwestern IA
Concerning...Severe Thunderstorm Watch 593...
Valid 180126Z - 180300Z
The severe weather threat for Severe Thunderstorm Watch 593
continues.
SUMMARY...Severe/damaging wind gusts will likely become an
increasing concern across Severe Thunderstorm Watch 593 this
evening. Relatively greater severe wind potential should exist
across southeastern SD and vicinity in the short term (next few
hours).
DISCUSSION...A line of storms has congealed along a cold front this
evening across eastern SD into parts of west-central MN. The
southern flank of this line across southeastern SD appears to be
more robust, as strong instability (MLCAPE of 2500-3500 J/kg) is
present across this region. A 30-35 kt southwesterly low-level jet
is expected to strengthen over eastern NE into southeastern SD and
vicinity, which will likely maintain storm intensity through the
remainder of the evening. Strong inbound velocities have recently
been noted on the KFSD radar with storms approaching Sioux Falls SD,
with evidence of a rear inflow jet developing. A corridor of severe,
damaging winds with gusts of 60-75 mph appears increasingly likely
across southeastern SD and vicinity. Isolated large hail may also
occur with supercells embedded within the line. Farther north,
isolated damaging winds will remain possible into
west-central/southwestern MN, but instability does decrease with
northward extent across Severe Thunderstorm Watch 593.
..Gleason.. 08/18/2019
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MPX...FGF...FSD...OAX...ABR...LBF...
LAT...LON 43049943 44029904 44439841 44899711 45399623 46089587
46069491 44969486 43749499 42699538 42359628 42379754
42709879 43049943
Read more
6 years ago
WW 0594 Status Updates
STATUS FOR WATCH 0594 HAS NOT BEEN ISSUED YET
Read more
6 years ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0800 PM CDT Sat Aug 17 2019
Valid 180100Z - 181200Z
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS
SOUTHEAST SD...FAR SOUTHWEST MN...AND FAR NORTHWEST IA...
...SUMMARY...
Scattered severe thunderstorms with damaging winds and large hail as
the primary threats are expected tonight across a large portion of
the northern to central Great Plains into the Midwest.
...01Z Update...
...Northern/Central Plains into the Mid MS Valley...
Strong to severe thunderstorms are expected to persist along
southern portions cold front currently extending from north-central
MN southwestward into the NE Panhandle. Air mass ahead of the cold
front is characterized by very moist low-levels (i.e. surface
dewpoints in the 70s across eastern SD), steep mid-level lapse
rates, and very strong buoyancy (i.e. MLCAPE over 3000 J/kg). Given
the linear forcing, a linear storm mode remains favored with strong
wind gusts as the primary severe threat. Additionally, storm cluster
across south-central SD has recently shown a surge in forward
motion, suggesting more forward-propagation off the front may be
occurring.
Farther south (across northern KS and far southern NE), a discrete
storm continues to progress eastward across Sheridan County.
Potential exists for this storm become more organized and strengthen
as it continues eastward into more favorable low-level moisture and
a strengthening low-level jet. Additionally, overall storm coverage
is expected to increase ahead of this storm as the low-level jet
increases.
...Far Northwest TX....Southwest/South-Central OK...
Isolated strong wind gusts remain possible across the region as
cluster of storms currently moving across southwest OK and far
northwest TX continues eastward. More information about this area is
available in MCD 1777.
..Mosier.. 08/18/2019
Read more
6 years ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0800 PM CDT Sat Aug 17 2019
Valid 180100Z - 181200Z
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS
SOUTHEAST SD...FAR SOUTHWEST MN...AND FAR NORTHWEST IA...
...SUMMARY...
Scattered severe thunderstorms with damaging winds and large hail as
the primary threats are expected tonight across a large portion of
the northern to central Great Plains into the Midwest.
...01Z Update...
...Northern/Central Plains into the Mid MS Valley...
Strong to severe thunderstorms are expected to persist along
southern portions cold front currently extending from north-central
MN southwestward into the NE Panhandle. Air mass ahead of the cold
front is characterized by very moist low-levels (i.e. surface
dewpoints in the 70s across eastern SD), steep mid-level lapse
rates, and very strong buoyancy (i.e. MLCAPE over 3000 J/kg). Given
the linear forcing, a linear storm mode remains favored with strong
wind gusts as the primary severe threat. Additionally, storm cluster
across south-central SD has recently shown a surge in forward
motion, suggesting more forward-propagation off the front may be
occurring.
Farther south (across northern KS and far southern NE), a discrete
storm continues to progress eastward across Sheridan County.
Potential exists for this storm become more organized and strengthen
as it continues eastward into more favorable low-level moisture and
a strengthening low-level jet. Additionally, overall storm coverage
is expected to increase ahead of this storm as the low-level jet
increases.
...Far Northwest TX....Southwest/South-Central OK...
Isolated strong wind gusts remain possible across the region as
cluster of storms currently moving across southwest OK and far
northwest TX continues eastward. More information about this area is
available in MCD 1777.
..Mosier.. 08/18/2019
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5 years 11 months ago
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