Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 99
NWS Storm Prediction Center Norman OK
340 PM CDT Fri Apr 10 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Pecos Valley of Texas
* Effective this Friday afternoon and evening from 340 PM until
1000 PM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2.5
inches in diameter possible
Isolated damaging wind gusts to 65 mph possible
A tornado or two possible
SUMMARY...A supercell or two should develop off the Davis Mountains
and gradually spread east through this evening. Large hail will be
the primary threat, but a brief tornado is also possible.
The severe thunderstorm watch area is approximately along and 55
statute miles north and south of a line from 65 miles west southwest
of Fort Stockton TX to 80 miles northeast of Dryden TX. 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.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26025.
...Grams
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 99
NWS Storm Prediction Center Norman OK
340 PM CDT Fri Apr 10 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Pecos Valley of Texas
* Effective this Friday afternoon and evening from 340 PM until
1000 PM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2.5
inches in diameter possible
Isolated damaging wind gusts to 65 mph possible
A tornado or two possible
SUMMARY...A supercell or two should develop off the Davis Mountains
and gradually spread east through this evening. Large hail will be
the primary threat, but a brief tornado is also possible.
The severe thunderstorm watch area is approximately along and 55
statute miles north and south of a line from 65 miles west southwest
of Fort Stockton TX to 80 miles northeast of Dryden TX. 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.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26025.
...Grams
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 102040Z - 110300Z
AXIS..55 STATUTE MILES NORTH AND SOUTH OF LINE..
65WSW FST/FORT STOCKTON TX/ - 80NE 6R6/DRYDEN TX/
..AVIATION COORDS.. 50NM N/S /15N MRF - 52SW SJT/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..55 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26025.
LAT...LON 31350393 31650126 30060126 29760393
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 #1 ON WW 99
VALID 110200Z - 110340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 E 6R6 TO
35 SSE FST TO 10 NNE FST TO 40 NE INK.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 332
..JEWELL..04/11/20
ATTN...WFO...MAF...SJT...
&&
STATUS REPORT FOR WS 99
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC103-105-135-371-383-443-461-110340-
TX
. TEXAS COUNTIES INCLUDED ARE
CRANE CROCKETT ECTOR
PECOS REAGAN TERRELL
UPTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Low (20%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (40%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (60%)
|
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% (EF2-EF5 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.