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The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 99
NWS STORM PREDICTION CENTER NORMAN OK
300 PM CDT SUN APR 27 2014
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTH CENTRAL TEXAS
* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 300 PM UNTIL
800 PM CDT.
* PRIMARY THREATS INCLUDE...
ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
A TORNADO OR TWO POSSIBLE
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 35
STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES WEST
NORTHWEST OF PARIS TEXAS TO 15 MILES EAST OF CORSICANA TEXAS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU9).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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...THIS SEVERE THUNDERSTORM WATCH REPLACES
SEVERE THUNDERSTORM WATCH NUMBER 94. WATCH NUMBER 94 WILL NOT BE
IN EFFECT AFTER 300 PM CDT. CONTINUE...WW 95...WW 96...WW 97...WW
98...
DISCUSSION...STORMS ARE EXPECTED TO CONTINUE DEVELOPING ALONG A
SLOWLY EWD ADVANCING PACIFIC FRONT/DRYLINE WITHIN EXIT REGION OF AN
APPROACHING UPPER JET. THE ATMOSPHERE HAS BECOME MODERATELY UNSTABLE
AND 0-6 KM SHEAR UP TO 50 KT WILL SUPPORT SUPERCELLS WITH LARGE HAIL
AND DAMAGING WIND. AN ISOLATED TORNADO ALSO CANNOT BE RULED OUT.
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 500. MEAN STORM
MOTION VECTOR 24035.
...DIAL
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 99 SEVERE TSTM TX 272000Z - 280100Z
AXIS..35 STATUTE MILES EAST AND WEST OF LINE..
30WNW PRX/PARIS TX/ - 15E CRS/CORSICANA TX/
..AVIATION COORDS.. 30NM E/W /64S MLC - 62ENE ACT/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24035.
REPLACES WW 94..TX
LAT...LON 33799531 32029555 32029673 33799654
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 99 Status Report Messages:
STATUS REPORT #4 ON WW 99
VALID 272345Z - 280040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 429.
..MARSH..04/27/14
ATTN...WFO...FWD...
&&
STATUS REPORT FOR WS 99
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC119-139-147-213-223-231-257-277-349-379-397-467-280040-
TX
. TEXAS COUNTIES INCLUDED ARE
DELTA ELLIS FANNIN
HENDERSON HOPKINS HUNT
KAUFMAN LAMAR NAVARRO
RAINS ROCKWALL VAN ZANDT
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 99
VALID 272235Z - 272340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 429.
..MARSH..04/27/14
ATTN...WFO...FWD...
&&
STATUS REPORT FOR WS 99
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC119-139-147-213-223-231-257-277-349-379-397-467-272340-
TX
. TEXAS COUNTIES INCLUDED ARE
DELTA ELLIS FANNIN
HENDERSON HOPKINS HUNT
KAUFMAN LAMAR NAVARRO
RAINS ROCKWALL VAN ZANDT
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 99
VALID 272235Z - 272340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..MARSH..04/27/14
ATTN...WFO...FWD...
&&
STATUS REPORT FOR WS 99
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC119-139-147-213-223-231-257-277-349-379-397-467-272340-
TX
. TEXAS COUNTIES INCLUDED ARE
DELTA ELLIS FANNIN
HENDERSON HOPKINS HUNT
KAUFMAN LAMAR NAVARRO
RAINS ROCKWALL VAN ZANDT
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 99
VALID 272140Z - 272240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..MARSH..04/27/14
ATTN...WFO...FWD...
&&
STATUS REPORT FOR WS 99
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC119-139-147-213-223-231-257-277-349-379-397-467-272240-
TX
. TEXAS COUNTIES INCLUDED ARE
DELTA ELLIS FANNIN
HENDERSON HOPKINS HUNT
KAUFMAN LAMAR NAVARRO
RAINS ROCKWALL VAN ZANDT
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Low (20%)
|
Probability of 1 or more wind events > 65 knots
|
Low (10%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (30%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (30%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (40%)
|
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 
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