RSS Mesoscale Discussions from Storm Prediction Center
WW 243 SEVERE TSTM TX CW 090010Z - 090500Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 243
NWS Storm Prediction Center Norman OK
710 PM CDT Thu May 8 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
South Texas
Coastal Waters
* Effective this Thursday night from 710 PM until Midnight CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph possible
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
SUMMARY...Clusters of strong to severe cellular thunderstorms will
likely grow upscale into a linear band of thunderstorms this
evening. Large hail (1 to 2 inches in diameter) and severe gusts
(60-75 mph) will be the primary threats with the more intense
storms. This activity is forecast to move east of the coast
tonight.
The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 15 miles northwest of
Beeville TX to 105 miles south of Alice TX. 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 238...WW 239...WW
240...WW 241...WW 242...
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
30035.
...Smith
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WW 242 SEVERE TSTM GA NC SC VA 082020Z - 090400Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 242
NWS Storm Prediction Center Norman OK
420 PM EDT Thu May 8 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Georgia
Western and Central North Carolina
Western and Northern South Carolina
Southwest Virginia
* Effective this Thursday afternoon from 420 PM until Midnight
EDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
Scattered damaging wind gusts to 70 mph likely
SUMMARY...Thunderstorms will continue developing this afternoon and
evening. The most intense cores will be capable of producing large
hail up to 1-2 inches in diameter. There should also be some
potential for a cluster to develop later this evening and pose a
greater threat for severe/damaging winds, with peak gusts up to
60-70 mph.
The severe thunderstorm watch area is approximately along and 80
statute miles north and south of a line from 50 miles southwest of
Hot Springs NC to 40 miles south southeast of Danville VA. 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 238...WW 239...WW
240...WW 241...
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
27030.
...Gleason
Read more
WW 241 SEVERE TSTM TX 081950Z - 090400Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 241
NWS Storm Prediction Center Norman OK
250 PM CDT Thu May 8 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
South-Central into Deep South Texas
* Effective this Thursday afternoon and evening from 250 PM until
1100 PM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2.5
inches in diameter possible
Isolated significant damaging wind gusts to 75 mph possible
A tornado or two possible
SUMMARY...Supercell thunderstorms will pose a threat for mainly
large hail up to 1.5-2.5 inches in diameter as they move slowly
east-southeastward this afternoon and evening. Some threat for
severe winds of 60-75 mph may also exist with any clusters that
evolve.
The severe thunderstorm watch area is approximately along and 65
statute miles north and south of a line from 55 miles west northwest
of Del Rio TX to 45 miles east of Laredo TX. 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 238...WW 239...WW 240...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
30025.
...Gleason
Read more
WW 0243 Status Updates
STATUS REPORT ON WW 243
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..LYONS..05/09/25
ATTN...WFO...CRP...
STATUS REPORT FOR WS 243
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC007-025-131-249-273-297-311-355-391-409-090140-
TX
. TEXAS COUNTIES INCLUDED ARE
ARANSAS BEE DUVAL
JIM WELLS KLEBERG LIVE OAK
MCMULLEN NUECES REFUGIO
SAN PATRICIO
GMZ231-232-236-250-255-090140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
BAFFIN BAY AND UPPER LAGUNA MADRE
CORPUS CHRISTI AND NUECES BAYS
COPANO ARANSAS AND REDFISH BAYS
COASTAL WATERS FROM BAFFIN BAY TO PORT ARANSAS OUT 20 NM
COASTAL WATERS FROM PORT ARANSAS TO MATAGORDA SHIP CHANNEL OUT 20
Read more
WW 0242 Status Updates
STATUS REPORT ON WW 242
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSE TRI
TO 30 WSW HKY TO 30 E CLT TO 15 W SOP TO 20 N SOP TO 25 E DAN TO
10 SW ROA.
..HART..05/09/25
ATTN...WFO...FFC...GSP...RAH...RNK...CAE...
STATUS REPORT FOR WS 242
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
GAC011-015-047-055-057-083-085-105-111-115-117-119-123-129-137-
139-147-187-213-227-241-257-281-291-295-311-313-090340-
GA
. GEORGIA COUNTIES INCLUDED ARE
BANKS BARTOW CATOOSA
CHATTOOGA CHEROKEE DADE
DAWSON ELBERT FANNIN
FLOYD FORSYTH FRANKLIN
GILMER GORDON HABERSHAM
HALL HART LUMPKIN
MURRAY PICKENS RABUN
STEPHENS TOWNS UNION
WALKER WHITE WHITFIELD
NCC007-021-037-045-051-071-075-085-087-089-093-099-101-105-111-
113-115-119-121-125-149-153-161-163-165-173-175-179-199-
090340-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
Read more
WW 0241 Status Updates
STATUS REPORT ON WW 241
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 75 NW LRD TO
35 NNW NIR.
..LYONS..05/09/25
ATTN...WFO...EWX...BRO...CRP...
STATUS REPORT FOR WS 241
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC047-061-127-215-247-261-283-427-479-489-505-090140-
TX
. TEXAS COUNTIES INCLUDED ARE
BROOKS CAMERON DIMMIT
HIDALGO JIM HOGG KENEDY
LA SALLE STARR WEBB
WILLACY ZAPATA
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
WW 0240 Status Updates
STATUS REPORT ON WW 240
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 W CHA TO
25 SSW TYS TO 15 NNE HSS TO 15 S TRI TO 30 SSE TRI.
..HART..05/09/25
ATTN...WFO...JKL...MRX...RLX...
STATUS REPORT FOR WS 240
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC039-043-090240-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
CHEROKEE CLAY
TNC011-019-029-059-065-115-139-171-179-090240-
TN
. TENNESSEE COUNTIES INCLUDED ARE
BRADLEY CARTER COCKE
GREENE HAMILTON MARION
POLK UNICOI WASHINGTON
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
WW 0239 Status Updates
STATUS REPORT ON WW 239
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 WSW MSL
TO 45 NW CHA.
..HART..05/09/25
ATTN...WFO...BMX...HUN...
STATUS REPORT FOR WS 239
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC009-019-043-049-055-057-059-071-073-075-079-083-089-093-095-
103-107-115-125-127-133-090140-
AL
. ALABAMA COUNTIES INCLUDED ARE
BLOUNT CHEROKEE CULLMAN
DEKALB ETOWAH FAYETTE
FRANKLIN JACKSON JEFFERSON
LAMAR LAWRENCE LIMESTONE
MADISON MARION MARSHALL
MORGAN PICKENS ST. CLAIR
TUSCALOOSA WALKER WINSTON
TNC051-103-127-090140-
TN
. TENNESSEE COUNTIES INCLUDED ARE
FRANKLIN LINCOLN MOORE
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
Read more
WW 0238 Status Updates
STATUS REPORT ON WW 238
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 S MKL TO
20 ENE MKL TO 40 WSW BNA TO 35 SSE BWG TO 25 ENE BWG TO 55 W LOZ.
..HART..05/08/25
ATTN...WFO...LMK...PAH...OHX...MEG...
STATUS REPORT FOR WS 238
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KYC001-009-053-057-169-171-207-090040-
KY
. KENTUCKY COUNTIES INCLUDED ARE
ADAIR BARREN CLINTON
CUMBERLAND METCALFE MONROE
RUSSELL
MSC003-009-057-081-115-117-139-141-145-090040-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
ALCORN BENTON ITAWAMBA
LEE PONTOTOC PRENTISS
TIPPAH TISHOMINGO UNION
TNC003-015-023-027-031-035-037-039-041-049-055-061-071-077-081-
087-099-101-109-111-117-119-133-135-137-141-149-159-165-169-175-
177-181-185-187-189-090040-
TN
Read more
No Mesoscale Discussions are in effect as of Fri May 9 03:30:07 UTC 2025.
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0801 PM CDT Thu May 08 2025
Valid 090100Z - 091200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
SOUTH TEXAS...THE TENNESSEE VALLEY...SOUTHERN APPALACHIANS AND
SOUTHEAST...
...SUMMARY...
Scattered thunderstorms with severe wind gusts and large hail will
continue this evening over parts of the Tennessee Valley, southern
Appalachians and Southeast. Severe wind gusts and large hail are
also expected across parts of south Texas, where hailstones of
greater than 2 inches in diameter will be possible.
...Tennessee Valley/Southern Appalachians/Southeast...
Latest water vapor imagery shows a positively-tilted mid-level
trough over the Ohio Valley, with an east-to-west oriented plume of
mid-level moisture from the mid Mississippi Valley into the south
and central Appalachians. At the surface, a quasi-stationary front
is analyzed in the Ohio Valley. To the south of the front over the
Ohio and Tennessee Valleys, surface dewpoints are in the mid 50s to
the mid 60s F. The RAP has moderate instability in place from the
Tennessee Valley eastward into the southern Appalachians and
southward into the Gulf Coast states. Scattered thunderstorms are
ongoing, concentrated along the northern edge of moderate
instability from Kentucky and Tennessee eastward into western North
Carolina. RAP forecast soundings in this vicinity early this evening
have 0-6 km shear ranging from 35 to 45 knots, mostly due to speed
shear in the mid-levels. This, combined with 0-3 km lapse rates in
the 7.5 to 8 C/km range, should be favorable for severe gusts with
the stronger cells. The shear will also support supercell
development with large hail possible. The severe threat should
become more isolated later this evening as instability decreases
across the region.
...South Texas...
A shortwave trough, with multiple vorticity maximums, appears to be
located in the lower Rio Grande Valley, according to water vapor
imagery. Scattered strong to severe thunderstorms are ongoing ahead
of the trough from near Laredo extending eastward onto the Texas
Coastal Plain. From the storms southward, moderate instability is
analyzed by the RAP, with MLCAPE estimated to be in the 1000 to 2000
J/kg range. The airmass is very moist with surface dewpoints in the
lower to mid 70s F. Within this moist airmass, RAP forecast
soundings early this evening have 0-6 km shear near 50 knots, with
700-500 mb lapse rates near 7.5 C/km. This environment will support
supercells with large hail, and hailstones greater than 2 inches in
diameter will be possible within the more intense cores. Isolated
severe gusts may also occur within the stronger downdrafts. The
ongoing severe storms will track southeastward across the remainder
of south Texas this evening...see MCD 749.
..Broyles.. 05/09/2025
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