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Potential thunderstorms/svr thunderstorms Thread


tombo82685

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Storms are firing up around State College.....they have been doing so for a while. We need to break the cap to get in on the action this afternoon.

It's a sizzling 74 degrees out right now... Lol. Gotta get the cloud deck to break . Vis sat has some clearin out west and southwest.

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Storms are firing up around State College.....they have been doing so for a while. We need to break the cap to get in on the action this afternoon.

Lots of moisture trapped under the inversion north of the warm front has been locking in the stratus. Seeing signs now that it is thinning with many areas having the cloud bases rising. I think most areas at least partially clear. Not much flow so far to push the warm front north. We shall see what develops/arrives from the west but I think some areas will see convection later this afternoon and this evening.

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We need that warm front to push through or the sun, or this is going to be another ordeal like last night. Strong storms approach from the west till they get to western chester county they turn into a rain event. All the instability right now is associated along and south of the warm front. There is virtually no shear with this, so main threat is damaging winds and hail, maybe an outside tornado.

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Picked up a much needed 0.48" of rain in the t-storms late last night and just after midnight.

The cold frontal storms are starting to fire up....the latest radar has the storms just over 57 miles to my NW and should be crossing my area sometime in the 4pm hour. Hopefully the Phils get the game in and Roy O....does the job today!

Go Phils!!

Currently

Hazy Sun

Temp 70.2

RH 95%

DP 68.7

Heat Indx 76.6

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Tstorm Watch

WATCH COUNTY NOTIFICATION FOR WATCH 467

NATIONAL WEATHER SERVICE MOUNT HOLLY NJ

148 PM EDT SUN JUN 12 2011

DEC001-003-MDC011-015-029-035-041-PAC029-130000-

/O.NEW.KPHI.SV.A.0467.110612T1748Z-110613T0000Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH

467 IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR THE FOLLOWING AREAS

IN DELAWARE THIS WATCH INCLUDES 2 COUNTIES

IN CENTRAL DELAWARE

KENT

IN NORTHERN DELAWARE

NEW CASTLE

IN MARYLAND THIS WATCH INCLUDES 5 COUNTIES

IN NORTHEAST MARYLAND

CAROLINE CECIL KENT

QUEEN ANNE'S TALBOT

IN PENNSYLVANIA THIS WATCH INCLUDES 1 COUNTY

IN SOUTHEAST PENNSYLVANIA

CHESTER

THIS INCLUDES THE CITIES OF...CENTREVILLE...CHESTERTOWN...

DENTON...DOVER...EASTON...ELKTON...WEST CHESTER AND WILMINGTON.

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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 467

NWS STORM PREDICTION CENTER NORMAN OK

150 PM EDT SUN JUN 12 2011

THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

DISTRICT OF COLUMBIA

NORTHERN DELAWARE

MARYLAND

A SMALL PART OF NORTHWEST NORTH CAROLINA

SOUTHEAST PENNSYLVANIA

VIRGINIA

THE EASTERN WEST VIRGINIA PANHANDLE

COASTAL WATERS

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 150 PM UNTIL 800

PM EDT.

HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95

STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES EAST OF

HARRISBURG PENNSYLVANIA TO 55 MILES SOUTH OF LYNCHBURG VIRGINIA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU7).

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.

DISCUSSION...THUNDERSTORMS ARE STRENGTHENING ALONG THE COLD FRONT IN

PA...AND ADDITIONAL DEVELOPMENT IS BEGINNING FARTHER TO THE S/SW

OVER THE HIGHER TERRAIN AND IN THE OPEN WARM SECTOR. STRONG SURFACE

HEATING IS SUPPORTING MLCAPE VALUES OF 1500-2000 J/KG...WHILE

VERTICAL SHEAR IS SUFFICIENT FOR ORGANIZED CLUSTERS FROM NRN VA INTO

PA. FARTHER S...THE ENVIRONMENT IS MORE FAVORABLE FOR PULSE TYPE

SEVERE STORMS WITH DAMAGING DOWNBURSTS...GIVEN THE WEAKER VERTICAL

SHEAR AND STEEP LOW-LEVEL LAPSE RATES. DAMAGING WINDS WILL BE THE

MAIN SEVERE THREAT...THOUGH MARGINALLY SEVERE HAIL WILL ALSO BE

POSSIBLE IN THE STRONGER STORMS.

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 30025.

...THOMPSON

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So how bout that delco fish Kill? :popcorn:

not impressed for Delco's chances today. temps 8 degrees below the forecasted high due to the lingering cloud cover. lack of surface based instability, weak mid level lapse rates, not a lot of shear.. Not to mention the direction the storms out west are heading SE..

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So how bout that delco fish Kill? :popcorn:

not impressed for Delco's chances today. temps 8 degrees below the forecasted high due to the lingering cloud cover. lack of surface based instability, weak mid level lapse rates, not a lot of shear.. Not to mention the direction the storms out west are heading SE..

I might be heading down to meetup with my friend in Baltimore,MD. To film these cells, amazing dynamics down there.

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TW for guess who, Lancaster County.

BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE STATE COLLEGE PA

249 PM EDT SUN JUN 12 2011

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* TORNADO WARNING FOR...

SOUTHEASTERN DAUPHIN COUNTY IN SOUTH CENTRAL PENNSYLVANIA...

WEST CENTRAL LANCASTER COUNTY IN SOUTH CENTRAL PENNSYLVANIA...

NORTH CENTRAL YORK COUNTY IN SOUTH CENTRAL PENNSYLVANIA...

* UNTIL 315 PM EDT

* AT 245 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A

SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE STORM

CONTAINING THE POSSIBLE TORNADO WAS NEAR GOLDSBORO...MOVING

SOUTHEAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...

BAINBRIDGE AND MANCHESTER AROUND 300 PM EDT...

ELIZABETHTOWN AROUND 305 PM EDT...

MAYTOWN AROUND 310 PM EDT...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS

THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY

ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE

PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 245 AND 255...I-83 BETWEEN

MILE MARKERS 25 AND 36...I-283.

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Last night's storms were unimpressive here in King of Prussia. Got some flashes & rumbles for a couple of hours on either side of midnight, but nothing outside of the norm. I'd love a good ol' house shaking thunderstorm today, please.

Yeah, we have not had a good storm for so long. It will not be today either.

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