Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 80
NWS STORM PREDICTION CENTER NORMAN OK
415 PM CDT FRI MAR 27 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHEAST LOUISIANA
EXTREME SOUTHWEST MISSISSIPPI
EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 415 PM UNTIL 900
PM CDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 45 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH NORTHWEST OF
NATCHEZ MISSISSIPPI TO 10 MILES SOUTH SOUTHWEST OF ALEXANDRIA
LOUISIANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
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 77...WW 78...WW 79...
DISCUSSION...A CLUSTER OF SUPERCELL THUNDERSTORMS OVER CENTRAL LA
WILL TRACK ALONG THE RETREATING WARM FRONT FOR ANOTHER FEW HOURS
TOWARD SOUTHWEST MS. INCREASING VERTICAL SHEAR ALONG THE FRONT WILL
POSE A RISK OF ISOLATED TORNADOES...ALONG WITH DAMAGING WINDS AND
HAIL.
AVIATION...TORNADOES AND 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
500. MEAN STORM MOTION VECTOR 24040.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 80 TORNADO LA MS 272115Z - 280200Z
AXIS..45 STATUTE MILES EAST AND WEST OF LINE..
35NNW HEZ/NATCHEZ MS/ - 10SSW ESF/ALEXANDRIA LA/
..AVIATION COORDS.. 40NM E/W /36SE MLU - 7E AEX/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24040.
LAT...LON 32099076 31269159 31269312 32099230
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 80 Status Report Messages:
STATUS REPORT #2 ON WW 80
VALID 272350Z - 280040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..03/27/09
ATTN...WFO...SHV...JAN...
&&
STATUS REPORT FOR WT 80
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC021-025-029-041-043-059-107-280040-
LA
. LOUISIANA PARISHES INCLUDED ARE
CALDWELL CATAHOULA CONCORDIA
FRANKLIN GRANT LA SALLE
TENSAS
$$
MSC001-021-037-063-280040-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
ADAMS CLAIBORNE FRANKLIN
JEFFERSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 80
VALID 272235Z - 272340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..HURLBUT..03/27/09
ATTN...WFO...SHV...JAN...
&&
STATUS REPORT FOR WT 80
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC021-025-029-041-043-059-107-272340-
LA
. LOUISIANA PARISHES INCLUDED ARE
CALDWELL CATAHOULA CONCORDIA
FRANKLIN GRANT LA SALLE
TENSAS
$$
MSC001-021-037-063-272340-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
ADAMS CLAIBORNE FRANKLIN
JEFFERSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (40%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Mod (30%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (70%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (F2-F5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.
weather.gov 
