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
Severe Thunderstorm Watch Number 40
NWS Storm Prediction Center Norman OK
225 AM CST Wed Mar 4 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Parts of the Texas Hill Country
* Effective this Wednesday morning from 225 AM until 800 AM CST.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms along a cold front will likely persist for
the next few hours, in advance of a strong upper storm system
approaching from the Big Bend. The storm environment favors a mix
of supercell and linear structures, with the potential for a few
embedded circulations and perhaps a tornado or two. However, the
main threats are expected to be large hail and damaging winds
through the morning.
The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 70 miles east northeast
of Junction TX to 40 miles east southeast of Del Rio TX. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU0).
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...CONTINUE...WW 39...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 450. Mean storm motion vector
25035.
...Thompson
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 40
NWS Storm Prediction Center Norman OK
225 AM CST Wed Mar 4 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Parts of the Texas Hill Country
* Effective this Wednesday morning from 225 AM until 800 AM CST.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms along a cold front will likely persist for
the next few hours, in advance of a strong upper storm system
approaching from the Big Bend. The storm environment favors a mix
of supercell and linear structures, with the potential for a few
embedded circulations and perhaps a tornado or two. However, the
main threats are expected to be large hail and damaging winds
through the morning.
The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 70 miles east northeast
of Junction TX to 40 miles east southeast of Del Rio TX. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU0).
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...CONTINUE...WW 39...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 450. Mean storm motion vector
25035.
...Thompson
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 40 SEVERE TSTM TX 040825Z - 041400Z
AXIS..55 STATUTE MILES EAST AND WEST OF LINE..
70ENE JCT/JUNCTION TX/ - 40ESE DRT/DEL RIO TX/
..AVIATION COORDS.. 50NM E/W /62ENE JCT - 27ESE DLF/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 25035.
LAT...LON 30909775 29149940 29140122 30909961
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 40 Status Report Messages:
STATUS REPORT #4 ON WW 40
VALID 041250Z - 041340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 S SAT TO
10 SSE SAT TO 20 N BAZ TO 25 NW AUS TO 35 W TPL.
..JEWELL..03/04/20
ATTN...WFO...EWX...SJT...
&&
STATUS REPORT FOR WS 40
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC091-209-453-491-041340-
TX
. TEXAS COUNTIES INCLUDED ARE
COMAL HAYS TRAVIS
WILLIAMSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 40
VALID 041200Z - 041340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SE HDO TO
15 WSW SAT TO 30 NW BAZ TO 40 WNW AUS TO 50 WSW TPL TO 45 W TPL.
..JEWELL..03/04/20
ATTN...WFO...EWX...SJT...
&&
STATUS REPORT FOR WS 40
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC029-031-053-091-209-453-491-041340-
TX
. TEXAS COUNTIES INCLUDED ARE
BEXAR BLANCO BURNET
COMAL HAYS TRAVIS
WILLIAMSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 40
VALID 041120Z - 041240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 S HDO TO
30 NNE HDO TO 55 NNW SAT TO 50 S BWD.
..JEWELL..03/04/20
ATTN...WFO...EWX...SJT...
&&
STATUS REPORT FOR WS 40
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC029-031-053-091-171-209-259-299-325-453-491-041240-
TX
. TEXAS COUNTIES INCLUDED ARE
BEXAR BLANCO BURNET
COMAL GILLESPIE HAYS
KENDALL LLANO MEDINA
TRAVIS WILLIAMSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 40
VALID 040910Z - 041040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SW DRT TO
25 NE DRT TO 45 NE DRT TO 35 SW JCT TO 15 W JCT TO 35 SE SJT.
..JEWELL..03/04/20
ATTN...WFO...EWX...SJT...
&&
STATUS REPORT FOR WS 40
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC019-031-053-137-171-259-265-267-271-299-319-325-385-463-
041040-
TX
. TEXAS COUNTIES INCLUDED ARE
BANDERA BLANCO BURNET
EDWARDS GILLESPIE KENDALL
KERR KIMBLE KINNEY
LLANO MASON MEDINA
REAL UVALDE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
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
|
Low (20%)
|
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% (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.
weather.gov 
@NWSSPC
