Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 210235
SWOMCD
SPC MCD 210234
NYZ000-NJZ000-PAZ000-210400-

MESOSCALE DISCUSSION 0409
NWS STORM PREDICTION CENTER NORMAN OK
0934 PM CDT MON APR 20 2015

AREAS AFFECTED...PORTIONS OF CNTRL/SRN NY...NERN PA...NRN NJ

CONCERNING...SEVERE THUNDERSTORM WATCH 92...

VALID 210234Z - 210400Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 92
CONTINUES.

SUMMARY...LOCALLY STRONG WIND GUSTS WILL REMAIN POSSIBLE AS
CONVECTION SPREADS EWD.

DISCUSSION...CONVECTION HAS AMALGAMATED INTO MULTIPLE
EWD-SPREADING...LOOSELY ORGANIZED BANDS. THIS ACTIVITY WILL CONTINUE
TO ADVANCE INTO MORE STABLE AIR N OF THE PRIMARY SYNOPTIC WARM
SECTOR...WITH FURTHER STATIC STABILITY OFFERED BY NOCTURNAL COOLING.
THIS WILL LIMIT THE SVR RISK...AND NEW WW ISSUANCE WILL NOT BE
NEEDED. HOWEVER...ENX/BGM VWPS SAMPLE SUFFICIENT DEEP SHEAR CAPABLE
OF MAINTAINING MODEST CONVECTIVE ORGANIZATION WITH RELATED MESOSCALE
CIRCULATIONS ENHANCING SFC WIND GUSTS ACROSS REMAINING VALID
PORTIONS OF WW 92 IN THE SHORT-TERM. THIS OVERALL RISK SHOULD WANE
WITH TIME INTO THE OVERNIGHT HOURS.

..COHEN.. 04/21/2015

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...OKX...ALY...PHI...BGM...

LAT...LON   40937568 42207564 43327567 43517507 42887462 41647439
            40757466 40937568



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