RSS Mesoscale Discussions from Storm Prediction Center
WW 83 SEVERE TSTM OH PA WV 312225Z - 010500Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 83
NWS Storm Prediction Center Norman OK
625 PM EDT Tue Mar 31 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Eastern Ohio
Western and Northern Pennsylvania
Far Northern West Virginia
* Effective this Tuesday night and Wednesday morning from 625 PM
until 100 AM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Strong to severe thunderstorms are expected to develop
and/or move generally eastward into the region this evening, with
damaging winds and some hail as the primary severe-weather hazards.
The severe thunderstorm watch area is approximately along and 35
statute miles north and south of a line from 20 miles south
southwest of Youngstown OH to 15 miles north of Williamsport PA. 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 79...WW 80...WW 81...WW
82...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
27030.
...Guyer
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WW 81 SEVERE TSTM OK TX 312135Z - 010400Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 81
NWS Storm Prediction Center Norman OK
435 PM CDT Tue Mar 31 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western Oklahoma
Western North Texas and Panhandle
* Effective this Tuesday afternoon and evening from 435 PM until
1100 PM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Storms are expected to further develop and intensify
through early evening across the southeast Texas Panhandle/Low
Rolling Plains into western Oklahoma, with large hail and locally
damaging winds as the primary hazards.
The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 75 miles northeast of
Clinton OK to 70 miles south of Childress 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 79...WW 80...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26025.
...Guyer
Read more
WW 0084 Status Updates
STATUS REPORT ON WW 84
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..03/31/26
ATTN...WFO...ALY...
STATUS REPORT FOR WS 84
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NYC021-027-039-111-010040-
NY
. NEW YORK COUNTIES INCLUDED ARE
COLUMBIA DUTCHESS GREENE
ULSTER
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 0083 Status Updates
STATUS REPORT ON WW 83
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 WNW FKL
TO 5 NNE FKL TO 25 E FKL TO 15 WSW BFD.
..SPC..04/01/26
ATTN...WFO...PBZ...CTP...
STATUS REPORT FOR WS 83
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OHC019-029-010240-
OH
. OHIO COUNTIES INCLUDED ARE
CARROLL COLUMBIANA
PAC005-007-019-021-023-027-031-033-035-047-053-063-065-073-081-
083-085-105-113-117-119-121-010240-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
ARMSTRONG BEAVER BUTLER
CAMBRIA CAMERON CENTRE
CLARION CLEARFIELD CLINTON
ELK FOREST INDIANA
JEFFERSON LAWRENCE LYCOMING
MCKEAN MERCER POTTER
SULLIVAN TIOGA UNION
VENANGO
WVC029-010240-
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WW 0082 Status Updates
STATUS REPORT ON WW 82
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..03/31/26
ATTN...WFO...IWX...IND...ILN...
STATUS REPORT FOR WS 82
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC001-003-009-015-017-033-039-049-053-067-069-075-085-087-091-
099-103-113-131-141-149-151-157-169-179-181-183-010040-
IN
. INDIANA COUNTIES INCLUDED ARE
ADAMS ALLEN BLACKFORD
CARROLL CASS DE KALB
ELKHART FULTON GRANT
HOWARD HUNTINGTON JAY
KOSCIUSKO LAGRANGE LA PORTE
MARSHALL MIAMI NOBLE
PULASKI ST. JOSEPH STARKE
STEUBEN TIPPECANOE WABASH
WELLS WHITE WHITLEY
OHC003-011-039-051-065-069-107-125-137-161-171-010040-
OH
. OHIO COUNTIES INCLUDED ARE
ALLEN AUGLAIZE DEFIANCE
FULTON HARDIN HENRY
MERCER PAULDING PUTNAM
VAN WERT WILLIAMS
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WW 0081 Status Updates
STATUS REPORT ON WW 81
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 65 ESE LBB
TO 55 SSW CDS TO 10 S LTS TO 25 NNW FSI TO 10 ENE CHK.
WW 81 WILL BE ALLOWED TO EXPIRE AT 010400Z.
..SQUITIERI..04/01/26
ATTN...WFO...OUN...LUB...AMA...
STATUS REPORT FOR WS 81
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC015-031-051-141-010400-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CADDO COMANCHE GRADY
TILLMAN
TXC155-269-275-487-010400-
TX
. TEXAS COUNTIES INCLUDED ARE
FOARD KING KNOX
WILBARGER
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 0080 Status Updates
STATUS REPORT ON WW 80
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..03/31/26
ATTN...WFO...CLE...
STATUS REPORT FOR WS 80
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OHC005-007-033-035-043-055-063-075-077-083-085-093-095-099-101-
103-117-123-133-139-143-147-151-153-155-169-173-175-010040-
OH
. OHIO COUNTIES INCLUDED ARE
ASHLAND ASHTABULA CRAWFORD
CUYAHOGA ERIE GEAUGA
HANCOCK HOLMES HURON
KNOX LAKE LORAIN
LUCAS MAHONING MARION
MEDINA MORROW OTTAWA
PORTAGE RICHLAND SANDUSKY
SENECA STARK SUMMIT
TRUMBULL WAYNE WOOD
WYANDOT
PAC039-049-010040-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
CRAWFORD ERIE
Read more
WW 0079 Status Updates
STATUS REPORT ON WW 79
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..03/31/26
ATTN...WFO...BUF...BGM...CTP...
STATUS REPORT FOR WS 79
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NYC003-007-009-011-013-015-017-023-025-029-037-051-053-055-063-
065-067-069-073-075-077-097-099-101-107-109-117-121-123-
312240-
NY
. NEW YORK COUNTIES INCLUDED ARE
ALLEGANY BROOME CATTARAUGUS
CAYUGA CHAUTAUQUA CHEMUNG
CHENANGO CORTLAND DELAWARE
ERIE GENESEE LIVINGSTON
MADISON MONROE NIAGARA
ONEIDA ONONDAGA ONTARIO
ORLEANS OSWEGO OTSEGO
SCHUYLER SENECA STEUBEN
TIOGA TOMPKINS WAYNE
WYOMING YATES
PAC015-083-105-115-117-123-312240-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
BRADFORD MCKEAN POTTER
SUSQUEHANNA TIOGA WARREN
Read more
MD 0316 CONCERNING SEVERE THUNDERSTORM WATCH 80...83... FOR UPPER OHIO VALLEY
Mesoscale Discussion 0316
NWS Storm Prediction Center Norman OK
0858 PM CDT Tue Mar 31 2026
Areas affected...Upper Ohio Valley
Concerning...Severe Thunderstorm Watch 80...83...
Valid 010158Z - 010400Z
The severe weather threat for Severe Thunderstorm Watch 80, 83
continues.
SUMMARY...Locally damaging winds will accompany squall line this
evening.
DISCUSSION...Surface front is gradually advancing southeast across
the Great Lakes this evening as a midlevel short-wave trough shifts
across LE/northern OH. An elongated, complex MCS has evolved ahead
of this feature with several clusters propagating east-southeast
across western PA into northern OH. In both cases a weak MCV is
likely evident within the broader precip shield which is indicative
of the maturity of this convection. Latest radar data suggests
damaging winds may be noted along the leading edge of these
arc-shaped squall lines. Although buoyancy is gradually decreasing
across this region, at least for the next few hours robust
convection will likely continue.
..Darrow.. 04/01/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...CTP...PBZ...CLE...
LAT...LON 40258203 40257948 40877768 41377801 41167980 41278121
40258203
MOST PROBABLE PEAK TORNADO INTENSITY...100-130 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
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SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0739 PM CDT Tue Mar 31 2026
Valid 010100Z - 011200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM THE UPPER
MIDWEST INTO THE CENTRAL APPALACHIANS...
...SUMMARY...
Scattered severe thunderstorms with damaging wind gusts and large
hail are expected this evening from the Midwest into the central
Appalachians. Isolated severe storms capable of large hail and
damaging gusts are also possible across western Oklahoma and far
northwest Texas.
...Midwest/Central Appalachians/Mid Mississippi Valley...
Water vapor imagery shows a mid-level zonal flow pattern over the
north-central and northeastern U.S., with a low-amplitude trough
located in the western Great Lakes. Scattered to numerous
thunderstorms are ongoing near the axis of a 40 to 55 knot low-level
jet from northern Indiana northeastward into the central
Appalachians. Within this corridor, RAP forecast soundings have
SBCAPE mostly in the 500 to 1000 J/kg range, with 0-6 km shear of 35
to 45 knots, and 0-3 km lapse rates near 7 C/km. This will be
favorable for multicell line segments capable of producing severe
wind gusts this evening. A few supercells with isolated large hail
and a marginal tornado threat will also be possible. As cells
continue to increase in coverage this evening, the development of a
larger-scale multicell line segment may occur. If this happens, then
the wind-damage threat could increase into the mid to late
evening...see MCD 314.
Further southwest into parts of the mid Mississippi Valley,
scattered thunderstorms are developing near an axis of instability
where SBCAPE is around 1000 J/kg, according to the RAP. This area is
further away from the mid-level jet in the Great Lakes. For this
reason, lift and deep-layer shear are somewhat weaker in the mid
Mississippi Valley suggesting that any severe threat will remain
marginal this evening.
...Southern and Central Plains...
A mid-level shortwave trough is evident on water vapor imagery over
western Kansas and western Oklahoma. At the surface, a cold front is
located from southeast Kansas extending southwestward into west
Texas. A broken line of strong thunderstorms is ongoing near the
front from southwest Oklahoma into northwest Texas. The nearest
forecast sounding is at Childress, which has MLCAPE near 1500 J/kg,
0-6 km shear around 40 knots and a 850-500 mb lapse rate near 8
C/km. This should be favorable for an isolated large hail and
wind-damage threat. The threat is expected to persist for a couple
more hours.
..Broyles.. 04/01/2026
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