96 replies to this topic

[LongIslandWthr]

Nice Band back in PA - allot of lightning and hail click the radar in my sig

[LongIslandWthr]

MESOSCALE DISCUSSION 0998
NWS STORM PREDICTION CENTER NORMAN OK
0501 AM CDT TUE JUN 09 2009

AREAS AFFECTED...ERN PA/SERN NY SWD TO MD/NRN VA

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 091001Z - 091100Z

ISOLATED STRONG WIND GUSTS AND GENERALLY SMALL HAIL...SOME
APPROACHING SEVERE VALUES...ARE POSSIBLE WITH THE LINE OF TSTMS
MOVING EWD THROUGH ERN PA...AND ALSO ATTENDANT TO RECENT TSTM
DEVELOPMENT OVER NERN VA TO ADJACENT MD /VICINITY OF D.C./.

OBJECTIVE ANALYSES INDICATED A MOIST/MODERATELY UNSTABLE AIRMASS
EXTENDING NWD IN LEE OF THE APPALACHIANS FROM VA/MD TO ERN PA/NJ.
INCREASE IN TSTM INTENSITY /DURING THE LAST 1-2 HOURS/ PER REGIONAL
RADAR DATA APPEARS TO BE ASSOCIATED WITH LEADING EDGE OF FORCING FOR
ASCENT /ATTENDANT TO SRN EXTENT OF ONTARIO SHORTWAVE TROUGH/
SPREADING EWD AND ENCOUNTERING THE MORE MOIST/UNSTABLE AIR MASS.
DESPITE THE INCREASE IN STORM INTENSITY...MODEST MID LEVEL LAPSE
RATES /AROUND 6.5 C/KM/ AND EFFECTIVE BULK SHEAR /25-30 KT/ SUGGEST
STORMS SHOULD BE MULTICELLULAR AND TEND TO HAVE DIFFICULTY
MAINTAINING MORE PERSISTENT UPDRAFTS...AND AN OVERALL ATTENDANT
SEVERE THREAT. ALTHOUGH SHEAR VALUES ARE GREATER WITH NWD EXTENT
INTO NY...WEAKER INSTABILITY SHOULD LIMIT STRONGER STORM DEVELOPMENT
INTO SERN NY. THESE TSTMS ARE EXPECTED TO MOVE EWD AND OFF THE NJ
COAST BY MID-LATE MORNING...WHILE FURTHER S THE VA TSTMS MOVE INTO
THE DELMARVA REGION.

..PETERS.. 06/09/2009


ATTN...WFO...OKX...ALY...PHI...BGM...AKQ...CTP...LWX...

LAT...LON 38437797 39527718 40437626 41317539 41907457 41987406
41327359 40637374 40117420 39457453 38567514 38047534
37797622 38437797

[robbbs]

LongIslandWthr, on Jun 9 2009, 10:12 AM, said:

Nice Band back in PA - allot of lightning and hail click the radar in my sig

Strongest cell in the line looks like it's headed straight here. These lines and cells ebb and flow so it may change yet. However, this line looks pretty nasty.

[giants1156]

robbbs, on Jun 9 2009, 06:47 AM, said:

Strongest cell in the line looks like it's headed straight here. These lines and cells ebb and flow so it may change yet. However, this line looks pretty nasty.

looks good. lets see if it falls apart. it usually does by the time it reaches my area

[LongIslandWthr]

robbbs, on Jun 9 2009, 06:47 AM, said:

Strongest cell in the line looks like it's headed straight here. These lines and cells ebb and flow so it may change yet. However, this line looks pretty nasty.

The southern most part of the line has 1.25'' hail

[robbbs]

NWS Upton issued a special statement at 6:30 am saying severe thunderstorms about to impact our region with this line. Wording gave high confidence about these storms expected to be pretty bad.

[lab94]

robbbs, on Jun 9 2009, 06:57 AM, said:

NWS Upton issued a special statement at 6:30 am saying severe thunderstorms about to impact our region with this line. Wording gave high confidence about these storms expected to be pretty bad.

Robbs, had a good on around 1:30am. Put down 1.19" with lots of CG strikes

[robbbs]

lab94, on Jun 9 2009, 11:08 AM, said:

Robbs, had a good on around 1:30am. Put down 1.19" with lots of CG strikes

Had only about half your precip total here, but lots of lightning overnight. That new line is just starting up now. Must be over you by now.

[lab94]

robbbs, on Jun 9 2009, 07:23 AM, said:

Had only about half your precip total here, but lots of lightning overnight. That new line is just starting up now. Must be over you by now.

Its pitch black and thundering. Rain just started. Make that lightning and loud thunder.LOL Skies just opend up

[robbbs]

This line will do wonders for the morning commute / traffic. Could not have been timed worse.

[lab94]

a iot of lightning with it, but only .22" so far with this second one. Still some rain to move in again.

[satellite_eyes]

perfect timing for me. i left about 1/2 hour before it started and got here no problem. radar looked like quite a red line going through h-town.

[rgwp96]

1.39 for total rainfall so far, last nights was a lot worse imo. This mornings came at the worse possible time, kids didnt want to get out of the car to get on the school bus.

[Hurricaneff]

over 5000 lightning stikes within the past half hour!!!!

[NYBrit]

I have a good storm going on right now. Lots of vivid lightning and some good rumbles of thunder.

[NittanyLion]

Had another good one this morning, which woke me up again with very loud thunder and lightning and torrential rains. Will check rain gauge in a little bit but looks close to 2" total from both these storms.

[NittanyLion]

1.90" total

[lab94]

rgwp96, on Jun 9 2009, 08:05 AM, said:

1.39 for total rainfall so far, last nights was a lot worse imo. This mornings came at the worse possible time, kids didnt want to get out of the car to get on the school bus.

Yes it was. Picked up 0.39" with the second one so the total so far is 1.58"


BTW-- with last nights storm ( the rain rate @ 1:30am was 5.33"hr ) there is a difference of .20" of rainfall between my Davis and the plastic tube that I use for my CoCoRahs mesurements ( tube was more) That was the first time in 3 months that there was more than 0.01" difference in them. I know this has been talked about in the past .

[snowshoe]

When I left I had 1.6 and still raining heavy. Line that went through was decent. Very heavy rain and some nice lighting. No rain now but very foggy on top of High Point Mountain

[Hurricaneff]

1.02" total