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Thunderstorm Threat 4-10-13


SRRTA22

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From Mt. Holly

 

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A CHANCE OF SOME GUSTY THUNDERSTORMS THIS EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

SHOWERS AND POSSIBLE THUNDERSTORMS WITH DOWNPOURS ARE ANTICIPATED

FOR THURSDAY NIGHT AND FRIDAY MORNING. POOR DRAINAGE FLOODING WILL

BE POSSIBLE, AND ANY STRONGER STORMS COULD PRODUCE LOCALLY GUSTY

WINDS.

Upton makes no mention of anything severe so I would disagree that the any advisory or watch is needed. The public is already weary of all the named winter storms and hyping of blizzards that never came. You can't put out an advisory/watch/warning everytime we get a thundershower. As long as its mentioned that we are getting thunderstorms I think people get the idea.

 

The problem is that nobody actually reads that. The average person doesn't log onto the NWS home page, put in their zip code and read the Forecast Discussion. They hear it on the radio, or turn on the news or go to the Weather Channel's homepage. A Severe Thunderstorm Advisory would be a product that would be produced on the radio, news and TWC - but it's minor enough to just let people know to be on the lookout for it. If a Watch were issued, that's a whole nuther story. An advisory would've been issued much earlier today.

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The problem is that nobody actually reads that. The average person doesn't log onto the NWS home page, put in their zip code and read the Forecast Discussion. They hear it on the radio, or turn on the news or go to the Weather Channel's homepage. A Severe Thunderstorm Advisory would be a product that would be produced on the radio, news and TWC - but it's minor enough to just let people know to be on the lookout for it. If a Watch were issued, that's a whole nuther story. An advisory would've been issued much earlier today.

But if people are watching the news or listening to the radio the weather is on enough that people will hear that storms are on the way. If they put an advisory every time a storm is in the area people will ignore that too

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Reports out NE PA storms:0517 PM     TSTM WND DMG     MOUNTAIN TOP            41.17N  75.90W04/10/2013                   LUZERNE            PA   BROADCAST MEDIA            TREE SNAPPED BY STRONG WINDS. REPORTED BY WBRE-TV.
0519 PM     TSTM WND DMG     PECKVILLE               41.48N  75.62W04/10/2013                   LACKAWANNA         PA   911 CENTER            TREE DOWN INTO A HOUSE
0524 PM     TSTM WND DMG     CLARKS SUMMIT           41.49N  75.71W04/10/2013                   LACKAWANNA         PA   911 CENTER            POLES AND WIRES DOWN

 

0527 PM     TSTM WND DMG     OLYPHANT                41.45N  75.58W04/10/2013                   LACKAWANNA         PA   911 CENTER            ROOF OFF A BUILDING
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I'm expecting Strong Thunderstorms out of this. Definitely a nice refresher from the dry weather We've had for the past 10 Days.

Very impressive cell about to enter Sussex/Warren NJ. All the activity over NE NJ dissipated. Interesting that the line seems to be heading for northern half of NJ and areas north and west of the city. I thought the focus was going to be over central/south NJ.

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Very impressive cell about to enter Sussex/Warren NJ. All the activity over NE NJ dissipated. Interesting that the line seems to be heading for northern half of NJ and areas north and west of the city. I thought the focus was going to be over central/south NJ.

Yeah, probably has a lot to do with the further north than expected WF.

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BULLETIN - EAS ACTIVATION REQUESTED

SEVERE THUNDERSTORM WARNING

NATIONAL WEATHER SERVICE NEW YORK NY

551 PM EDT WED APR 10 2013

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

PASSAIC COUNTY IN NORTHEAST NEW JERSEY...

ORANGE COUNTY IN SOUTHEAST NEW YORK...

* UNTIL 630 PM EDT...

* AT 545 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A

LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN

EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING

FROM 33 MILES NORTHWEST OF WALDEN TO 46 MILES SOUTHWEST OF PORT

JERVIS...AND MOVING EAST AT 70 MPH.

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

OTISVILLE...UNIONVILLE...MIDDLETOWN...GOSHEN...MONTGOMERY...

FLORIDA...WARWICK...CHESTER...WEST MILFORD...GREENWOOD LAKE...

GARDNERTOWN...MONROE...NEWBURGH...HARRIMAN...NEW WINDSOR...

BLOOMINGDALE AND RINGWOOD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING WIND DAMAGE ACROSS CENTRAL NEW

YORK AND NORTHEASTERN PENNSYLVANIA. SEEK SHELTER NOW INSIDE A STURDY

STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

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336 
ACUS11 KWNS 102200
SWOMCD
SPC MCD 102159 
NYZ000-NJZ000-PAZ000-WVZ000-OHZ000-102300-
 
MESOSCALE DISCUSSION 0431
NWS STORM PREDICTION CENTER NORMAN OK
0459 PM CDT WED APR 10 2013
 
AREAS AFFECTED...PORTIONS PA...ERN OH...NRN WV PANHANDLE...SERN
NY...NRN NJ.
 
CONCERNING...SEVERE POTENTIAL...WATCH LIKELY 
 
VALID 102159Z - 102300Z
 
PROBABILITY OF WATCH ISSUANCE...80 PERCENT
 
SUMMARY...TWO PRIMARY/BOWING TSTM COMPLEXES -- ONE MOVING NEWD OUT
OF NERN PA...SECOND MOVING EWD FROM NERN OH -- ARE FCST TO OFFER
DAMAGING WIND POTENTIAL.  EASTERN ONE WILL BE SHORTER-LIVED...MOVING
INTO MORE STABLE AIR.  WESTERN COMPLEX MAY PERSIST WITH SVR THREAT
RELATIVELY MAXIMIZED NEAR OUTFLOW BOUNDARY FROM FIRST.  ISOLATED TO
WIDELY SCATTERED TSTMS ALONG THEIR OUTFLOW BOUNDARIES MAY PRODUCE
OCNL HAIL AND GUSTS NEAR SVR LIMITS...BUT THREAT FROM THOSE APPEARS
MRGL/TRANSIENT.  ELEVATED CONVECTION WELL N OF BOUNDARY SHOULD
REMAIN LARGELY SUB-SVR...BUT WITH ISOLATED HAIL NEAR SVR LIMITS AND
STG GUSTS.  NEW WW IS BEING CONSIDERED THAT WOULD COVER WRN COMPLEX.
 
DISCUSSION...SFC MESOANALYSIS INDICATED COLD MARINE BOUNDARY FROM
NEAR ACY NNWWD ACROSS BUCKS COUNTY PA THAN ARCHING OVER PIKE COUNTY
PA AND SULLIVAN COUNTY NY...HAVING ALREADY PASSED MSV.  THIS
BOUNDARY  CORRESPONDS WELL TO FINE LINE EVIDENT IN COMPOSITE
REFLECTIVITY ANIMATIONS...MOVING WWD 5-10 KT.  THIS BOUNDARY WILL BE
OVERTAKEN WITHIN NEXT 1-2 HOURS FROM N-S...BY MCS MOVING EWD 45-50
KT OVER NERN PA.  QUASISTATIONARY FRONT INTERSECTED MCS OVER NERN PA
NEAR BORDER WITH SULLIVAN COUNTY NY...AND EXTENDED ENEWD ACROSS SWRN
MA.  NARROW PLUME OF RELATIVELY UNDISTURBED WARM SECTOR WITH AT
LEAST MRGLLY SFC-BASED EFFECTIVE INFLOW PARCELS IS EVIDENT BETWEEN
LEADING MCS AND MARINE BOUNDARY...WITHIN WHICH MCS STILL POSES RISK
OF STG-DAMAGING GUSTS.  THIS RISK WILL DIMINISH SUBSTANTIALLY WITH
EWD EXTENT INTO STABLE MARINE AIR...THOUGH BRIEF/ISOLATED
PENETRATION OF CONVECTIVE GUSTS TO SFC CANNOT BE RULED OUT AS FAR E
AS HUDSON RIVER.
 
OUTFLOW BOUNDARY FROM NERN PA COMPLEX WAS ANALYZED ACROSS
NORTHUMBERLAND/CAMBRIA/BEAVER COUNTIES PA INTO ERN OH...INTERSECTING
NEXT MCS BETWEEN CAK-PHD.  SECOND COMPLEX EXHIBITS VERY SIMILAR
STRUCTURE AND MOVEMENT TO FIRST...BUT MORE INTENSE...PRODUCING GUSTS
TO 56 KT AT POV AT 2117Z.  ITS DAMAGING-WIND THREAT SHOULD DIMINISH
WITH NWD EXTENT FROM OUTFLOW BOUNDARY...WHERE STABLE LAYER BECOMES
PROGRESSIVELY COOLER AND DEEPER.  NONETHELESS...60-80 KT REAR-INFLOW
JET WAS EVIDENT IN CLE RADAR BASE VELOCITY DATA...INDICATING
CONSIDERABLE MOMENTUM FOR WIND POTENTIAL TO PERSIST INTO WRN PA. 
NEAR AND S OF OUTFLOW BOUNDARY...AIR MASS IS CHARACTERIZED BY
SPORADICALLY WELL-MIXED BOUNDARY LAYERS AWAY FROM SMALLER
OUTFLOWS...SUPPORTING THREAT FOR SVR GUSTS.  HOWEVER...DIABATIC SFC
COOLING WILL STABILIZE THIS AIR MASS WITH TIME AND REDUCE ALREADY
MRGL MLCAPE OF AROUND 500 J/KG.  AS SUCH...DAMAGING GUST POTENTIAL
SHOULD DIMINISH WITH TIME AND EWD EXTENT ACROSS CENTRAL-ERN PA.
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It's feels good to have that dark ominous sky :D Storms aren't showing any signs of weakening as it heads into the NYC metro area

They are weakening. All warnings have expired

 

ASTERN BERGEN-EASTERN ESSEX-EASTERN PASSAIC-EASTERNUNION-HUDSON-NORTHERN WESTCHESTER-PUTNAM-ROCKLAND-WESTERNBERGEN-WESTERN ESSEX-WESTERN UNION-619 PM EDT WED APR 10 2013...GUST FRONT FROM WEAKENING LINE OF THUNDERSTORMS WILL IMPACTBERGEN...ESSEX...HUDSON...PASSAIC...PUTNAM...ROCKLAND...UNION ANDWESTCHESTER COUNTIES...AT 611 PM EDT...THE NATIONAL WEATHER SERVICE WAS TRACKING AWEAKENING LINE OF THUNDERSTORMS ACROSS NORTHWESTERN NEW JERSEY ANDWESTERN ORANGE COUNTY...MOVING EAST AT 65 MPH.WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THIS LINE AS IT MOVESINTO THE AREA. A FEW CLOUD TO GROUND LIGHTNING STRIKES ARE EXPECTEDAS WELL.
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