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July 26, 2012 Severe Weather Potential


earthlight

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Initial damage reports...

1830 UNK FRANKLIN VENANGO PA 4139 7984 WIDESPREAD TREES DOWN THROUGHOUT THE COUNTY. (PBZ) 1835 UNK NEW MADISON DARKE OH 3997 8471 TWO TREES DOWN. TIME ESTIMATED. (ILN) 1845 UNK SALEM COLUMBIANA OH 4090 8086 TREES AND POWER LINES DOWN IN AND AROUND THE TOWN. (PBZ) 1856 UNK SMETHPORT MCKEAN PA 4181 7844 TREES REPORTED DOWN NEAR SMETHPORT. (CTP)

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Tornado on the ground boys.

ULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE PITTSBURGH PA

330 PM EDT THU JUL 26 2012

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* TORNADO WARNING FOR...

JEFFERSON COUNTY IN WEST CENTRAL PENNSYLVANIA...

* UNTIL 415 PM EDT

* AT 327 PM EDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO NEAR

BROOKVILLE...MOVING SOUTHEAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO

SUMMERVILLE... BROOKVILLE... REYNOLDSVILLE...

PUNXSUTAWNEY...

THIS WILL IMPACT THE FOLLOWING HIGHWAY...

I-80 BETWEEN MILE MARKERS 73 AND 96.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING ONE

INCH SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

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Rule of thumb is a derecho likes to ride the 582dm. What happened a couple weeks ago was the 582dm was to our south hence why it moved further south. Thats one factor that caused that to happen

This one looks to be a bit south of the 582dm line, but still not going much south of the 500mb flow which is about east/ESE. Unless this line somehow splits in its northern half, I do not see how this can possibly entirely miss the NYC area to the south.

post-1753-0-19460400-1343331162_thumb.jp

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This one looks to be a bit south of the 582dm line, but still not going much south of the 500mb flow which is about east/ESE. Unless this line somehow splits, I do not see how this can possibly entirely miss the NYC area to the south.

post-1753-0-19460400-1343331162_thumb.jp

The height gradient is guiding the MCS directly along the periphery of 40-50kts of effective shear and an axis of building high instability...this MCS should continue to mature and accelerate eastward with N NJ/E PA/SE NY/ CT likely to be impacted by a widespread severe wx episode.

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THE NATIONAL WEATHER SERVICE IN BINGHAMTON HAS ISSUED A

* TORNADO WARNING FOR...

SOUTHERN CHEMUNG COUNTY IN CENTRAL NEW YORK...

SOUTHEASTERN STEUBEN COUNTY IN CENTRAL NEW YORK...

NORTHWESTERN BRADFORD COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 415 PM EDT.

* AT 333 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A

SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR ADDISON...

MOVING EAST AT 50 MPH.

* THE STORM CAPABLE OF PRODUCING THE TORNADO WILL BE NEAR...

LINDLEY AND CORNING BY 340 PM EDT...

CATON...SOUTH CORNING AND EAST CORNING BY 345 PM EDT...

PINE CITY AND WEST ELMIRA BY 355 PM EDT...

SOUTHPORT...ELMIRA AND GILLETT BY 400 PM EDT...

LOWMAN AND WELLSBURG BY 405 PM EDT...

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Just saw on TV that there is a tornado watch for the mid Hudson valley and Lichfield county conn till 9pm

Yup my county is included Sullivan county ny storms are west of us moving east at 65 mph

Tornado Watch

Expires 9:00 PM EDT on July 26, 2012

Statement as of 3:03 PM EDT on July 26, 2012

Tornado Watch 525 remains in effect until 900 PM EDT for the 

following locations

NY 

. New York counties included are

Albany Broome Cayuga 

Chemung Chenango Columbia 

Cortland Delaware Dutchess 

Fulton Greene Hamilton 

Herkimer Madison Montgomery 

Oneida Onondaga Otsego 

Rensselaer Saratoga Schenectady 

Schoharie Schuyler Seneca 

Steuben "Sullivan " Tioga 

Tompkins Ulster Warren 

Washington Yates 

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Here we go, boys and girls! MESOSCALE DISCUSSION 1608

NWS STORM PREDICTION CENTER NORMAN OK

0237 PM CDT THU JUL 26 2012

AREAS AFFECTED...PORTIONS OH...NERN KY...WV...PA...SERN NY...SRN NEW

ENGLAND...NJ.

CONCERNING...SEVERE THUNDERSTORM WATCH 524...

VALID 261937Z - 262130Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 524

CONTINUES.

SUMMARY...CONTINUE WW ALONG/AHEAD OF STG-SVR TSTMS NOW OVER NRN/WRN

PORTIONS. NEW WW WILL BE ISSUED SOON...DOWNSHEAR FOR ERN PA EWD

TOWARD SWRN NEW ENGLAND AND LONG ISLAND INCLUDING NYC METRO AREA.

DISCUSSION...INCREASINGLY WELL-ORGANIZED SQUALL LINE...WITH EMBEDDED

BOW/LEWP SEGMENTS...WAS EVIDENT AT 1930Z FROM STEUBEN COUNTY NY SWWD

TO COLUMBIANA COUNTY OH...BECOMING MORE BKN SWWD OVER SERN OH. THIS

ACTIVITY CONTINUES MOVING EWD 40-50 KT...WITH LOCAL VARIATIONS AS

COLD-POOL SURGES OCCUR...AND WILL MOVE INTO FAVORABLY

UNSTABLE/BUOYANT AIR MASS ACROSS CENTRAL/ERN PA AND EVENTUALLY EWD

TO SRN NEW ENGLAND. MIDLEVEL LAPSE RATES WILL CONTINUE TO DIMINISH

WHILE CINH INCREASES WITH EWD EXTENT...PER 18Z RAOBS.

HOWEVER...STG BOUNDARY-LAYER HEATING IS FCST...WITH LOW-LEVEL WLYS

ALSO CONTRIBUTING TO CAPE THROUGH MOISTURE ADVECTION/TRANSPORT. AS

SUCH...FAVORABLE AIR MASS WILL SPREAD/DEVELOP EWD OVER CT/RI/LONG

ISLAND. THIS CORRIDOR WILL REMAIN BENEATH SRN RIM OF STRONGEST

MIDLEVEL WINDS...CONTRIBUTING TO EFFECTIVE SHEAR MAGNITUDES 40-50

KT. DIFFUSE SFC WARM FRONT WILL CONTINUE TO MOVE NEWD OVER ERN/NRN

PA INTO SERN NY. NEARLY UNIDIRECTIONAL WIND PROFILES SHOULD

CONTINUE...BUT WITH SLGT VEERING IN LOWEST 1-2 KM AGL INVOF WARM

FRONT.

..EDWARDS.. 07/26/2012

ATTN...WFO...BOX...OKX...ALY...PHI...BGM...BUF...CTP...LWX...

PBZ...RLX...CLE...JKL...ILN...LMK...IWX...

LAT...LON 38798495 39988466 41618313 42337923 42057718 41177637

41467396 42007191 41227146 40737280 40487399 39877405

39337436 38917499 39307537 39727589 39497809

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MD issued for NYC area finally:

http://www.spc.noaa..../md/md1608.html

MESOSCALE DISCUSSION 1608

NWS STORM PREDICTION CENTER NORMAN OK

0237 PM CDT THU JUL 26 2012

AREAS AFFECTED...PORTIONS OH...NERN KY...WV...PA...SERN NY...SRN NEW

ENGLAND...NJ.

CONCERNING...SEVERE THUNDERSTORM WATCH 524...

VALID 261937Z - 262130Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 524

CONTINUES.

SUMMARY...CONTINUE WW ALONG/AHEAD OF STG-SVR TSTMS NOW OVER NRN/WRN

PORTIONS. NEW WW WILL BE ISSUED SOON...DOWNSHEAR FOR ERN PA EWD

TOWARD SWRN NEW ENGLAND AND LONG ISLAND INCLUDING NYC METRO AREA.

DISCUSSION...INCREASINGLY WELL-ORGANIZED SQUALL LINE...WITH EMBEDDED

BOW/LEWP SEGMENTS...WAS EVIDENT AT 1930Z FROM STEUBEN COUNTY NY SWWD

TO COLUMBIANA COUNTY OH...BECOMING MORE BKN SWWD OVER SERN OH. THIS

ACTIVITY CONTINUES MOVING EWD 40-50 KT...WITH LOCAL VARIATIONS AS

COLD-POOL SURGES OCCUR...AND WILL MOVE INTO FAVORABLY

UNSTABLE/BUOYANT AIR MASS ACROSS CENTRAL/ERN PA AND EVENTUALLY EWD

TO SRN NEW ENGLAND. MIDLEVEL LAPSE RATES WILL CONTINUE TO DIMINISH

WHILE CINH INCREASES WITH EWD EXTENT...PER 18Z RAOBS.

HOWEVER...STG BOUNDARY-LAYER HEATING IS FCST...WITH LOW-LEVEL WLYS

ALSO CONTRIBUTING TO CAPE THROUGH MOISTURE ADVECTION/TRANSPORT. AS

SUCH...FAVORABLE AIR MASS WILL SPREAD/DEVELOP EWD OVER CT/RI/LONG

ISLAND. THIS CORRIDOR WILL REMAIN BENEATH SRN RIM OF STRONGEST

MIDLEVEL WINDS...CONTRIBUTING TO EFFECTIVE SHEAR MAGNITUDES 40-50

KT. DIFFUSE SFC WARM FRONT WILL CONTINUE TO MOVE NEWD OVER ERN/NRN

PA INTO SERN NY. NEARLY UNIDIRECTIONAL WIND PROFILES SHOULD

CONTINUE...BUT WITH SLGT VEERING IN LOWEST 1-2 KM AGL INVOF WARM

FRONT.

..EDWARDS.. 07/26/2012

ATTN...WFO...BOX...OKX...ALY...PHI...BGM...BUF...CTP...LWX...

PBZ...RLX...CLE...JKL...ILN...LMK...IWX...

post-230-0-11573700-1343331963_thumb.gif

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