WW 76 SEVERE TSTM IA IL IN 262115Z - 270400Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 76
NWS Storm Prediction Center Norman OK
515 PM EDT Thu Mar 26 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Far Southeast Iowa
Central and Northern Illinois
Central and Northern Indiana
* Effective this Thursday afternoon from 515 PM until Midnight
EDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 80
mph likely
Scattered large hail and isolated very large hail events to 2.5
inches in diameter likely
A tornado or two possible
SUMMARY...Scattered severe thunderstorms are forecast to develop
into the evening with the stronger thunderstorms being capable of a
risk for large to very large hail and severe gusts. A tornado is
also possible, mainly over portions of eastern and northern Indiana.
This activity should gradually shift east-southeast during the
evening with the risk for severe wind gusts eventually becoming the
primary hazard.
The severe thunderstorm watch area is approximately along and 70
statute miles north and south of a line from 30 miles southwest of
Burlington IA to 30 miles southeast of Fort Wayne IN. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU6).
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 75...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 450. Mean storm motion vector
28040.
...Smith
WW 0076 Status Updates
STATUS REPORT ON WW 76
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 W BRL TO
10 NE BRL TO 35 NW PIA TO 10 NNW BMI TO 20 NNW DNV TO 15 NW MIE
TO 40 SE FWA.
..CHALMERS..03/27/26
ATTN...WFO...DVN...LSX...ILX...LOT...IWX...IND...
STATUS REPORT FOR WS 76
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC001-009-017-019-021-023-029-033-035-039-041-045-057-067-071-
079-095-101-107-109-113-115-125-129-137-139-143-147-149-167-169-
171-173-179-183-187-270340-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ADAMS BROWN CASS
CHAMPAIGN CHRISTIAN CLARK
COLES CRAWFORD CUMBERLAND
DE WITT DOUGLAS EDGAR
FULTON HANCOCK HENDERSON
JASPER KNOX LAWRENCE
LOGAN MCDONOUGH MCLEAN
MACON MASON MENARD
MORGAN MOULTRIE PEORIA
PIATT PIKE SANGAMON
SCHUYLER SCOTT SHELBY
TAZEWELL VERMILION WARREN
INC011-021-023-027-035-045-055-057-059-063-065-075-081-083-093-
095-097-101-105-107-109-119-121-133-135-139-145-153-157-159-165-
167-171-270340-
WW 0075 Status Updates
STATUS REPORT ON WW 75
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SE FWA TO
25 NE CMH TO 20 NE ZZV TO 25 WSW LBE TO 15 E LBE.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0296
..CHALMERS..03/27/26
ATTN...WFO...IWX...CLE...ILN...PBZ...
STATUS REPORT FOR WT 75
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC041-161-177-270340-
IN
. INDIANA COUNTIES INCLUDED ARE
FAYETTE UNION WAYNE
OHC011-013-021-023-037-041-045-047-049-057-059-089-091-097-107-
109-111-113-119-121-129-135-149-159-270340-
OH
. OHIO COUNTIES INCLUDED ARE
AUGLAIZE BELMONT CHAMPAIGN
CLARK DARKE DELAWARE
FAIRFIELD FAYETTE FRANKLIN
GREENE GUERNSEY LICKING
LOGAN MADISON MERCER
MIAMI MONROE MONTGOMERY
MUSKINGUM NOBLE PICKAWAY
PREBLE SHELBY UNION
MD 0296 CONCERNING TORNADO WATCH 75... FOR EAST-CENTRAL OHIO...WESTERN PENNSYLVANIA
Mesoscale Discussion 0296
NWS Storm Prediction Center Norman OK
0925 PM CDT Thu Mar 26 2026
Areas affected...East-central Ohio...western Pennsylvania
Concerning...Tornado Watch 75...
Valid 270225Z - 270330Z
The severe weather threat for Tornado Watch 75 continues.
SUMMARY...The severe weather threat should gradually diminish after
03z/11 pm EDT and, although an isolated strong/severe storm will
remain possible, the overall threat is such that an additional watch
is not anticipated.
DISCUSSION...Isolated strong/severe storms were in progress at 0220z
along the cold front across east-central OH and southwest PA, with a
recent history of large hail and near severe gusts. As the storms
move southeast into a less favorable thermodynamic environment
(MUCAPE less than 500 J/kg) after 03-04z, an overall weakening trend
is expected. Although a localized risk for a strong/severe storm
may persist beyond the scheduled expiration of Tornado Watch 75 at
03z, the risk is expected to remain confined in space and time, and
an additional downstream watch is not expected.
..Bunting.. 03/27/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...CTP...PBZ...RLX...CLE...ILN...
LAT...LON 40318212 40528046 40517956 40477926 40277908 40047925
39837969 39728015 39718052 39698124 39708176 39778194
39978255 40268247 40318212
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0747 PM CDT Thu Mar 26 2026
Valid 270100Z - 271200Z
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE MIDWEST AND OHIO VALLEY...
...SUMMARY...
Scattered severe thunderstorms are expected this evening across
parts of the Midwest and Ohio Valley. Large to very large hail, a
few tornadoes, and damaging winds will all be possible.
...Midwest/Ohio Valley...
The latest water vapor imagery shows west-northwesterly mid-level
flow over the southern Great Lakes, Midwest and Ohio Valley, with a
subtle shortwave trough evident within the flow over far northwest
Illinois. At the surface, a cold front is located from central
Illinois east-northeastward into north-central Ohio. Scattered
strong to severe thunderstorms are ongoing near the front, extending
northward into the cooler air about 150 statute miles. The best
environment currently appears to be located from far eastern Indiana
eastward to east of Columbus, Ohio, where RAP analysis shows a
west-to-east axis of MLCAPE in the 1000 to 1500 J/kg range. RAP
forecast soundings near this axis of instability have 0-6 km shear
in the 50 to 60 knot range with 700-500 mb lapse rates near 7 C/km.
Cells are currently discrete within this environment, which will
continue to favor supercells with large hail. Hailstones greater
than 2 inches in diameter appear likely with the more intense
supercells. In addition, low-level lapse rates are also steep, which
will support a wind-damage threat. A few gusts above 70 knots will
be possible. Also, forecast soundings within this unstable airmass
have 0-3 km storm-relative helicity in the 400 to 450 m2/s2 range,
suggesting that a tornado threat will continue with the more intense
supercells. The severe threat will likely be maximized within this
corridor over the next few hours...see MCD 293. The severe threat
should expand eastward across far eastern Ohio and into western
Pennsylvania.
Further west into parts of Indiana and Illinois, the strongest
storms are currently located near and to the east of Indianapolis.
Although the storms are not as strong westward into central and
northern Illinois, convective intensity is expected to increase as
the shortwave trough moves eastward across the state, along with the
exit region of a mid-level jet. Scattered severe storms are expected
to develop over the next couple of hours, and a cluster or line
could become organized...see MCD 294. Isolated severe storms will
also be possible further west into parts of Missouri and far eastern
Kansas later this evening.
..Broyles.. 03/27/2026
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