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Storms are forming in western Pennsylvania, and a separate storm cluster in Ohio has a history of wind damage. Either or both areas of storms will spread into central Pennsylvania through the afternoon, and potentially as far south as the West Virginia/Maryland Panhandles. Damaging gusts will be the main threat, though the strongest storms could also produce isolated large hail (1-1.5 inches in diameter).
SEL8 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 278 NWS Storm Prediction Center Norman OK 140 PM EDT Sat Jun 6 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of The Maryland Panhandle Central Pennsylvania Extreme northern Virginia The eastern West Virginia Panhandle * Effective this Saturday afternoon and evening from 140 PM until 800 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible SUMMARY...Storms are forming in western Pennsylvania, and a separate storm cluster in Ohio has a history of wind damage. Either or both areas of storms will spread into central Pennsylvania through the afternoon, and potentially as far south as the West Virginia/Maryland Panhandles. Damaging gusts will be the main threat, though the strongest storms could also produce isolated large hail (1-1.5 inches in diameter). The severe thunderstorm watch area is approximately along and 85 statute miles north and south of a line from 35 miles south southwest of Dubois PA to 40 miles northeast of Harrisburg PA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). 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 277... 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 28040. ...Thompson
Clusters of storms are expected to continue developing and spreading east-southeastward from Indiana into Ohio along a residual outflow boundary. The stronger storm clusters (with some supercell structure possible) will be capable of producing large hail up to 1.5 inches in diameter and wind damage with outflow gusts up to 65 mph through late evening.
SEL9 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 279 NWS Storm Prediction Center Norman OK 345 PM EDT Sat Jun 6 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northern and central Indiana Central and west central Ohio * Effective this Saturday afternoon and evening from 345 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 65 mph possible Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Clusters of storms are expected to continue developing and spreading east-southeastward from Indiana into Ohio along a residual outflow boundary. The stronger storm clusters (with some supercell structure possible) will be capable of producing large hail up to 1.5 inches in diameter and wind damage with outflow gusts up to 65 mph through late evening. The severe thunderstorm watch area is approximately along and 45 statute miles north and south of a line from 15 miles north of Lafayette IN to 35 miles south southeast of Columbus OH. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). 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 277...WW 278... AVIATION...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 30025. ...Thompson
Thunderstorms are beginning to develop in the warm sector from northeast Pennsylvania into southern New York. The storm environment favors primarily multicell clusters with the potential to produce wind damage and isolated large hail through late evening.
SEL0 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 280 NWS Storm Prediction Center Norman OK 405 PM EDT Sat Jun 6 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Extreme northwest Connecticut Extreme western Massachusetts Southern New York Northeast Pennsylvania * Effective this Saturday afternoon and evening from 405 PM until 900 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1 inch in diameter possible SUMMARY...Thunderstorms are beginning to develop in the warm sector from northeast Pennsylvania into southern New York. The storm environment favors primarily multicell clusters with the potential to produce wind damage and isolated large hail through late evening. The severe thunderstorm watch area is approximately along and 50 statute miles north and south of a line from 15 miles southeast of Pittsfield MA to 20 miles southwest of Binghamton NY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). 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 277...WW 278...WW 279... AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 27035. ...Thompson
Clusters of storms will spread generally eastward from Pennsylvania and northern Maryland into New Jersey, northern Delaware and southeast New York (including Philadelphia and New York City) through late evening. The more intense storms will be capable of damaging wind swaths up to 75 mph, along with isolated hail near 1 inch in diameter.
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 281
NWS Storm Prediction Center Norman OK
445 PM EDT Sat Jun 6 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Extreme southwest Connecticut
Northern Delaware
New Jersey
Southeast New York
Southeast Pennsylvania
Coastal Waters
* Effective this Saturday afternoon and evening from 445 PM until
1000 PM EDT.
* Primary threats include...
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Isolated large hail events to 1 inch in diameter possible
SUMMARY...Clusters of storms will spread generally eastward from
Pennsylvania and northern Maryland into New Jersey, northern
Delaware and southeast New York (including Philadelphia and New York
City) through late evening. The more intense storms will be capable
of damaging wind swaths up to 75 mph, along with isolated hail near
1 inch in diameter.
The severe thunderstorm watch area is approximately along and 70
statute miles north and south of a line from 50 miles west southwest
of Allentown PA to 25 miles south southeast of Islip NY. 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 277...WW 278...WW
279...WW 280...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 65 knots. A few
cumulonimbi with maximum tops to 450. Mean storm motion vector
28040.
...Thompson
Supercells will spread east-southeastward this evening while posing a threat for mainly severe hail up to 1-1.5 inches in diameter. A tornado may also occur with any sustained supercell. Otherwise, scattered severe/damaging winds appear possible with multicell clusters which may eventually develop and evolve eastward.
SEL2 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 282 NWS Storm Prediction Center Norman OK 600 PM EDT Sat Jun 6 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northern, Central, and Eastern Ohio Northern West Virginia * Effective this Saturday evening from 600 PM until 1100 PM 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...Supercells will spread east-southeastward this evening while posing a threat for mainly severe hail up to 1-1.5 inches in diameter. A tornado may also occur with any sustained supercell. Otherwise, scattered severe/damaging winds appear possible with multicell clusters which may eventually develop and evolve eastward. The severe thunderstorm watch area is approximately along and 50 statute miles east and west of a line from 45 miles north northwest of Mansfield OH to 10 miles east southeast of Parkersburg WV. 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 277...WW 278...WW 279...WW 280...WW 281... 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 28035. ...Gleason
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