Tornado Watch 75

Issued

Mar 27, 2009, 5:02 AM CDT (10:02 UTC)

Expired

Mar 27, 2009, 10:05 AM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

60 kt

The Eglin Afb radar (KEVX), 25 km from the middle of the area, began a volume at 10:05 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Two or more tornadoes

40%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

5%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

40%

• Mesoscale Discussion 289Mar 27, 4:37 AM CDT
• Mesoscale Discussion 290Mar 27, 6:35 AM CDT
• Mesoscale Discussion 293Mar 27, 9:51 AM CDT

748 
WWUS20 KWNS 271004
SEL5  
SPC WW 271004
ALZ000-FLZ000-CWZ000-271500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 75
NWS STORM PREDICTION CENTER NORMAN OK
500 AM CDT FRI MAR 27 2009

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       FAR SOUTHEAST ALABAMA
       FLORIDA PANHANDLE
       COASTAL WATERS

EFFECTIVE THIS FRIDAY MORNING FROM 500 AM UNTIL 1000 AM CDT.

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 EAST AND WEST OF A LINE FROM 25 MILES NORTHWEST OF DOTHAN
ALABAMA TO 30 MILES WEST SOUTHWEST OF APALACHICOLA FLORIDA.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU5).

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.

OTHER WATCH INFORMATION...CONTINUE...WW 74...

DISCUSSION...WELL ORGANIZED LINEAR MCS WILL CONTINUE EWD ACROSS WW
EARLY THIS MORNING. PRECEEDING THE LINE...STRONG PRESSURE FALLS OVER
SERN AL WILL INDUCE SELY WINDS ACROSS THE FL PANHANDLE AND ALLOW
MOIST...GULF AIR TO OVERSPREAD THE REGION.  ISOLATED DAMAGING WINDS
MAY ACCOMPANY BOWING SEGMENTS WITHIN THE LINE...WITH ADDITIONAL
HAZARD OF ISOLATED TORNADOES GIVEN THE PRONOUNCED LOW LEVEL SHEAR
AND PERSISTENT LOW LEVEL CIRCULATIONS ATTENDANT TO THE LINE.  EWD
EXTENT OF SEVERE THREAT IS DIFFICULT TO DISCERN BY MID MORNING WITH
COOLER/MORE STABLE AIR INTO THE FL BEND REGION/SWRN GA ATTM. 
HOWEVER...WATCH MAY REQUIRE EWD EXTENSION AT A LATER TIME SHOULD
THIS AIR DESTABILIZE.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.
MEAN STORM MOTION VECTOR 26035.


...EVANS

Tornado Watches in Florida, 2009Tornado Watches in Georgia, 2009Tornado Watches in Alabama, 2009Every tornado watch in 2009

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.