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FL severe weather risk


Thundersnow12

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looking at a few things right now..some interesting looking wind profiles down in FL for later today..

35-50kts at H5 out of the WSW with 850mb winds out of the south with 35kts and nicely backed and strong sfc winds in the area. The shear is for sure there but the instability isn't that great but should get the job done..dew points are also in the low to mid 60's with some upper 60 dews popping near MIA area

DAY 1 CONVECTIVE OUTLOOK

NWS STORM PREDICTION CENTER NORMAN OK

1010 AM CST TUE JAN 25 2011

VALID 251630Z - 261200Z

...THERE IS A SLGT RISK OF SVR TSTMS THIS AFTERNOON AND TONIGHT OVER

MUCH OF FL...

..FL

SRN BRANCH S/W TROUGH WILL PROGRESS EWD ACROSS LWR MS VLY/NRN GULF

OF MEXICO THIS AFTERNOON TO SERN STATES BY 12Z WED AS IT CONTINUES

TO DEEPEN. SURFACE LOW ALONG THE SERN LA/SRN MS COAST WILL DEVELOP

ENEWD ALONG STRENGTHENING BAROCLINIC ZONE DEVELOPING NWD THROUGH NRN

FL/SRN GA BY LATE THIS AFTERNOON INTO TONIGHT.

GULF MOISTURE IS SPREADING NWD THRU FL PENINSULA ON STRENGTHENING

LOW LEVEL SLY FLOW WITH 850 WINDS TO 35-40KT BY MID AFTERNOON

CENTRAL FL PENINSULA NWD.

WITH INCREASING THUNDERSTORMS NOTED OVER NERN GULF AND LATEST

MESOSCALE MODEL GUIDANCE IT STILL APPEARS THERE IS THE POTENTIAL FOR

TWO DISTINCT TSTM REGIMES DURING THE DAY ONE PERIOD. THE DOMINANT

AND MOST PROBABLE REGIME WILL BE THE DEVELOPMENT OF A SQUALL LINE

AHEAD OF THE SYNOPTIC COLD FRONT WHICH WILL PROGRESS FROM THE NERN

GULF OF MEXICO EWD THROUGH AT LEAST THE NRN HALF OF THE PENINSULA

BETWEEN 00-06Z. BASED ON THE HIGHER RESOLUTION MODEL DATA

SETS...CONVECTIVE MODE WILL LIKELY BE LINEAR QLCS WITH THE POTENTIAL

FOR EMBEDDED BOWING STRUCTURES CAPABLE OF DAMAGING WIND GUSTS AND

PERHAPS A BRIEF TORNADO OR TWO.

THERE REMAINS UNCERTAINTY OF THE POTENTIALLY MORE SIGNIFICANT SECOND

REGIME WHICH COULD DEVELOP BY LATER THIS AFTERNOON OVER THE FL

PENINSULA WHERE HEATING WILL BE SUFFICIENT TO SUPPORT SURFACE BASED

THUNDERSTORMS. FORECAST SOUNDING DATA INDICATE LITTLE CAP WILL

REMAIN ONCE TEMPS WARM INTO THE MID 70S AND DEWPOINTS RISE INTO THE

MID 60S. AT THAT POINT MLCAPE OF 500-1000 J PER KG/ AIR MASS

COINCIDENT WITH 40-45 KT OF DEEP WLY SHEAR AND 0-1 KM SRH OF 150-250

M2/S2 WOULD BE SUPPORTIVE OF MORE DISCRETE STORM MODES INCLUDING

SUPERCELLS CAPABLE OF DAMAGING WINDS AND A FEW TORNADOES BY LATER

THIS AFTERNOON.

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