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The 4/4-4/5 potential minitorch/storm thread


phlwx

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Last night's GFS is torching I-95 on Tuesday, with mid to upper 70's before a cold front crosses the region (the best thunderstorm action is down in the South and Southeast with the GFS).

The Euro is suggesting an early morning frontal passage with a band of chilled rain along and just behind the front. The Euro is probably 12 hours ahead of the GFS (which is rare) and as a result of the frontal boundary passage early in the day, temps would probably top out in the low/mid 60's pre-front.

Both models suggest a rainy start to Monday as a warm front lifts through. We could have high temperatures on Monday evening across Philly (low 60's?), with a rather mild Monday night before Tuesday's "torch."

Go GFS?

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Some of te models yesterday 12z were also hinting at a slp redeveloping off the Delmarva coast. Not sure what last nights 0z models showed?

Not sure if we should keep the heat ( although only 1 day) and storm threat separate threads?

Your show phlwx

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Some of te models yesterday 12z were also hinting at a slp redeveloping off the Delmarva coast. Not sure what last nights 0z models showed?

Not sure if we should keep the heat ( although only 1 day) and storm threat separate threads?

Your show phlwx

The Euro tries to develop something on the 12z but it's pretty much is an open wave. IMO, it could just be a convective feedback issue as it looks like a big time severe event in Carolinas.

FWIW, Euro says Monday PM will be warm (maybe near 70) before front crosses Monday night. 12z GFS is a Tuesday midday frontal passage in Philly with the potential for t-storms.

I'll rename the thread for both the "heat" and the "potential" of rain.

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12z GFS spikes temps. overnight Monday into Tuesday morning before the front gets through. That timing would suck, as we wouldn't even get one true torch day.

Euro gives more hope for warmth later Monday, GEM maybe on Tuesday if the front is slower. Hmmmmmmmm.

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euro really honing in on Monday as the torch day...+16 850's by evening with a SW wind. 70+ looks like a good bet IF we can get the warm front through in time....in early April that's tricky north and east of town but around the city it should happen.

Front comes through either Tuesday AM (GFS) or Tuesday dinner (EURO) -- it's the difference between run of mill t-storm/rain or a potential strong/severe event.

Also looks like Monday night will be warm -- 60ish maybe?

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euro really honing in on Monday as the torch day...+16 850's by evening with a SW wind. 70+ looks like a good bet IF we can get the warm front through in time....in early April that's tricky north and east of town but around the city it should happen.

Front comes through either Tuesday AM (GFS) or Tuesday dinner (EURO) -- it's the difference between run of mill t-storm/rain or a potential strong/severe event.

Also looks like Monday night will be warm -- 60ish maybe?

Yup, looks like a potential 30 degree temp. gradient across eastern PA on Monday. Here's hoping for one day of warmth! :thumbsup: Looks like the front comes through too fast on Tuesday to support another warm day.....we'll see.

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I just noticed the 18z GFS is advertising an 850mb wind of 110mph at 09z Tuesday.

I'm not sure how much of that mixes down to the surface, but if we do end up with strong storms, they could be rather windy

Down to just 80 kts on the 0z GFS. ;)

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URGENT - WEATHER MESSAGE

NATIONAL WEATHER SERVICE MOUNT HOLLY NJ

409 PM EDT SUN APR 3 2011

...MULTIPLE WIND RELATED HAZARDS EXPECTED MONDAY AFTERNOON INTO

EARLY TUESDAY...

STRONG LOW PRESSURE MOVING INTO SOUTHEAST CANADA COMBINED WITH A

STRONG COLD FRONTAL PASSAGE EARLY TUESDAY THREATENS PORTIONS OF

THE MID ATLANTIC STATES WITH STRONG WIND.

DEZ002>004-MDZ020-NJZ021>025-027-040830-

/O.NEW.KPHI.WI.Y.0006.110404T1700Z-110404T2200Z/

KENT-INLAND SUSSEX-DELAWARE BEACHES-CAROLINE-CUMBERLAND-ATLANTIC-

CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-

SOUTHEASTERN BURLINGTON-

INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH...

DENTON...MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE...

OCEAN CITY...ATLANTIC CITY...WHARTON STATE FOREST

409 PM EDT SUN APR 3 2011

...WIND ADVISORY IN EFFECT FROM 1 PM TO 6 PM EDT MONDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND

ADVISORY...WHICH IS IN EFFECT FROM 1 PM TO 6 PM EDT MONDAY.

* LOCATIONS...SOUTHERN TWO THIRDS OF DELAWARE...A PORTION OF

MARYLAND`S EASTERN SHORE AND A PORTION OF SOUTHEAST NEW JERSEY.

* HAZARDS...WIND.

* WINDS...SOUTHWEST 15 TO 25 MPH WITH SCATTERED GUSTS UP TO 50 MPH

AWAY FROM THE COOLING EFFECTS OF ANY NEARBY COASTAL WATERS.

* TIMING...BEST CHANCE IS BETWEEN 2PM AND AND 5 PM WHEN TEMPERATURES

SOAR THROUGH THE 70S.

* IMPACTS...THIS MAY CAUSE A FEW SMALL BRANCHES TO BREAK...AFFECT

TRAVEL OF HIGH PROFILE VEHICLES AND ENHANCE THE RATE OF SPREAD

OF ANY FINE FUEL FIRES.

* OUTLOOK...THERE IS A CHANCE OF STRONG THUNDERSTORMS WITH GUSTS

TO 50 MPH BETWEEN 4 AM AND 10 AM TUESDAY. THIS MAY NEED SOME

SORT OF DETAILED HEADLINE INFORMATION STATEMENT IN FUTURE

FORECASTS.

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Little OT here, but picking up smoke from a factory fire, in Galloway Twp, on KDIX. Never seen smoke from a structure fire before, only our huge woods fires we get around here. Pretty much half of our county, and some from Burlington are en route to this fire.

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Mt holly:

POTENTIAL FOR ISOLATED SVR STILL EXISTS NEAR 12Z TUE. WE MAY NEED

A WIND ADVY FOR LATE MONDAY NIGHT AS BL WINDS INCREASE AND IF THE

WIND ADVY DOESNT VERIFY ON SUSTAINED OR GUST...THEN AM PRETTY

CONFIDENT WE ARE GOING TO SEE SIGNIFICANT CONVECTIVE ELEMENTS.

TUESDAY...THE EC REALLY CHILLS MIDDAY AS IT POURS HERE BUT OTHER

MODELS ARE FASTER EXITING. HAVE CAT POPS TUE MORNING AND TEMPS MAY

RUN COLDER DURING MIDDAY THEN NOW FCST. PLEASE CONSIDER SPECIFIC

Interesting... So basically, if winds don't live up to the advisories, they seem pretty confident that we'll see storms.

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