Storm Prediction Center Forecast
RSS Mesoscale Discussions from Storm Prediction Center
WW 3 TORNADO AL MS 062005Z - 070100Z
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 3
NWS STORM PREDICTION CENTER NORMAN OK
205 PM CST TUE JAN 6 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL AND NORTHEAST ALABAMA
SOUTHEAST MISSISSIPPI
EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 205 PM UNTIL
700 PM CST.
TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 35 MILES EAST NORTHEAST OF
GADSDEN ALABAMA TO 210 MILES SOUTHWEST OF BIRMINGHAM ALABAMA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
DISCUSSION...THUNDERSTORMS ARE SLOWLY INCREASING ALONG SURFACE
BOUNDARY EXTENDING FROM SOUTHERN MS INTO NORTHEAST AL. WEAK
THERMODYNAMICS WILL LIKELY LIMIT INITIATION AHEAD OF FRONT.
HOWEVER...STRONG VERTICAL SHEAR PROFILES INDICATE A RISK OF
SUPERCELLS/BOW STRUCTURES WITH STORMS ALONG BOUNDARY THROUGH THE
AFTERNOON AND EVENING. DAMAGING WINDS AND ISOLATED TORNADOES APPEAR
TO BE THE MAIN THREATS.
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WW 0003 Status Reports
STATUS FOR WATCH 0003 HAS NOT BEEN ISSUE YET
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No Mesoscale Discussions are in effect as of Tue Jan 6 20:41:03 UTC 2009.
SPC 2000Z Day 1 Outlook
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0141 PM CST TUE JAN 06 2009
VALID 062000Z - 071200Z
...THERE IS A SLGT RISK OF SVR TSTMS ACROSS PORTIONS OF THE CENTRAL
GULF STATES...
...GULF STATES...
UPPER TROUGH IS BEGINNING TO EJECT EWD ACROSS TX WITH LEAD TROUGH
AXIS APPROACHING THE SABINE RIVER. PRIMARY ZONE OF ASCENT CONTINUES
ALONG/NORTH OF BOUNDARY THAT STRETCHES FROM THE NWRN GULF OF
MEXICO...NEWD INTO CNTRL MS/NRN AL WHERE A NARROW BAND OF CONVECTION
WITH LIGHTNING IS EMBEDDED WITHIN A BROADER ZONE OF PRECIPITATION.
THIS ACTIVITY IS DRIVEN PRIMARILY BY WARM ADVECTION ATOP COOLER
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SPC 1730Z Day 2 Outlook
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1105 AM CST TUE JAN 06 2009
VALID 071200Z - 081200Z
...NO SVR TSTM AREAS FORECAST...
...SERN U.S...
VERY STRONG MID-HIGH LEVEL FLOW WILL OVERSPREAD MUCH OF THE ERN U.S.
ON DOWNSTREAM SIDE OF PROGRESSIVE LONG WAVE UPPER TROUGH. AT THE
SFC...WELL DEFINED BOUNDARY WILL ADVANCE INTO THE FL PANHANDLE AND
CNTRL GA AT THE BEGINNING OF THE PERIOD WHILE MODIFIED WARM SECTOR
RETURNS NWD ACROSS THE CAROLINAS INTO SERN VA. GIVEN THE STRENGTH
OF THE UPPER TROUGH...AND DEEP LAYER SHEAR APPROACHING 80KT THROUGH
6KM...THE ONLY REAL QUESTION REGARDING THE POTENTIAL FOR SEVERE
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