Source: US National Oceanic and Atmospheric Administration
Note: The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.Note: Click for Watch Status Reports.
SEL0
URGENT – IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 310
NWS Storm Prediction Center Norman OK
240 PM EDT Wed May 21 2025
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Eastern Ohio
Western Pennsylvania
Far Northern West Virginia
* Effective this Wednesday afternoon and evening from 240 PM
until 800 PM EDT.
* Primary threats include…
A couple tornadoes possible
Scattered damaging wind gusts to 65 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY…Low-topped supercell and related hail/wind and tornado
potential should focus in a narrow zone regionally near a warm front
this afternoon until around sunset.
The tornado watch area is approximately along and 50 statute miles
east and west of a line from 35 miles north northwest of Pittsburgh
PA to 30 miles west southwest of Morgantown WV. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU0).
PRECAUTIONARY/PREPAREDNESS ACTIONS…
REMEMBER…A Tornado Watch means conditions are favorable for
tornadoes and 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.
&&
AVIATION…Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1.5 inches. Extreme turbulence and surface wind
gusts to 55 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 23025.
…Guyer
Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.
SAW0
WW 310 TORNADO OH PA WV 211840Z – 220000Z
AXIS..50 STATUTE MILES EAST AND WEST OF LINE..
35NNW PIT/PITTSBURGH PA/ – 30WSW MGW/MORGANTOWN WV/
..AVIATION COORDS.. 45NM E/W /15WNW EWC – 37SSE AIR/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..55 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 23025.
LAT…LON 40967953 39487950 39488137 40968144
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 310 Status Report Message has not been issued yet.
Note: Click for Complete Product Text.Tornadoes
Probability of 2 or more tornadoes
Mod (30%)
Probability of 1 or more strong (EF2-EF5) tornadoes
Low (10%)
Wind
Probability of 10 or more severe wind events
Mod (40%)
Probability of 1 or more wind events > 65 knots
Low (10%)
Hail
Probability of 10 or more severe hail events
Low (20%)
Probability of 1 or more hailstones > 2 inches
Low (