URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 116
NWS STORM PREDICTION CENTER NORMAN OK
1255 AM CDT SAT MAR 15 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHERN AND CENTRAL ALABAMA
EFFECTIVE THIS SATURDAY MORNING FROM 1255 AM UNTIL 800 AM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH OF
HUNTSVILLE ALABAMA TO 25 MILES SOUTH OF CENTREVILLE ALABAMA. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU6).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 111...WW 112...WW
113...WW 114...WW 115...
DISCUSSION...LONG-LIVED CLUSTER OF SEVERE STORMS MOVING EAST FROM MS
EXPECTED TO CONTINUE ACROSS NRN HALF OF AL NEXT FEW HOURS. MCS
SHOULD BE SUSTAINED BY MASS INFLOW DUE TO INCREASINGLY STRONG LOW
LEVEL JET AHEAD OF DEEPENING LOW PRESSURE MOVING EAST TOWARD THE
LOWER MS VALLEY THROUGH DAYBREAK. SHEAR AND INSTABILITY WILL SUPPORT
EMBEDDED SUPERCELLS WITHIN THE LARGER CONVECTIVE MASS WITH ATTENDANT
LARGE HAIL AND DAMAGING WIND HAZARDS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350. MEAN STORM
MOTION VECTOR 24040.
...CARBIN
SEVERE THUNDERSTORM WATCH NUMBER 116
NWS STORM PREDICTION CENTER NORMAN OK
1255 AM CDT SAT MAR 15 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHERN AND CENTRAL ALABAMA
EFFECTIVE THIS SATURDAY MORNING FROM 1255 AM UNTIL 800 AM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH OF
HUNTSVILLE ALABAMA TO 25 MILES SOUTH OF CENTREVILLE ALABAMA. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU6).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 111...WW 112...WW
113...WW 114...WW 115...
DISCUSSION...LONG-LIVED CLUSTER OF SEVERE STORMS MOVING EAST FROM MS
EXPECTED TO CONTINUE ACROSS NRN HALF OF AL NEXT FEW HOURS. MCS
SHOULD BE SUSTAINED BY MASS INFLOW DUE TO INCREASINGLY STRONG LOW
LEVEL JET AHEAD OF DEEPENING LOW PRESSURE MOVING EAST TOWARD THE
LOWER MS VALLEY THROUGH DAYBREAK. SHEAR AND INSTABILITY WILL SUPPORT
EMBEDDED SUPERCELLS WITHIN THE LARGER CONVECTIVE MASS WITH ATTENDANT
LARGE HAIL AND DAMAGING WIND HAZARDS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350. MEAN STORM
MOTION VECTOR 24040.
...CARBIN
No comments:
Post a Comment