Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 178
NWS Storm Prediction Center Norman OK
1045 AM CDT Tue May 12 2020
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
A small part of central Texas
* Effective this Tuesday morning and afternoon from 1045 AM until
500 PM CDT.
* Primary threats include...
A couple tornadoes possible
Isolated damaging wind gusts to 70 mph possible
Isolated large hail events to 1 inch in diameter possible
SUMMARY...A small convective system across central Texas will likely
persist into the afternoon, with embedded supercells capable of
producing a couple of tornadoes.
The tornado watch area is approximately along and 45 statute miles
north and south of a line from 30 miles northwest of San Antonio TX
to 55 miles east southeast of Austin TX. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU8).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
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 550. Mean
storm motion vector 22020.
...Thompson
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 178
NWS Storm Prediction Center Norman OK
1045 AM CDT Tue May 12 2020
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
A small part of central Texas
* Effective this Tuesday morning and afternoon from 1045 AM until
500 PM CDT.
* Primary threats include...
A couple tornadoes possible
Isolated damaging wind gusts to 70 mph possible
Isolated large hail events to 1 inch in diameter possible
SUMMARY...A small convective system across central Texas will likely
persist into the afternoon, with embedded supercells capable of
producing a couple of tornadoes.
The tornado watch area is approximately along and 45 statute miles
north and south of a line from 30 miles northwest of San Antonio TX
to 55 miles east southeast of Austin TX. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU8).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
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 550. Mean
storm motion vector 22020.
...Thompson
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW8
WW 178 TORNADO TX 121545Z - 122200Z
AXIS..45 STATUTE MILES NORTH AND SOUTH OF LINE..
30NW SAT/SAN ANTONIO TX/ - 55ESE AUS/AUSTIN TX/
..AVIATION COORDS.. 40NM N/S /22WNW SAT - 42ESE CWK/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 22020.
LAT...LON 30499882 30649685 29349685 29199882
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU8.
Watch 178 Status Report Messages:
STATUS REPORT #4 ON WW 178
VALID 122150Z - 122200Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 WNW AUS
TO 15 ENE BAZ TO 35 E BAZ TO 55 ESE AUS TO 35 SW CLL.
REMAINDER OF WW 178 MAY BE ALLOWED TO EXPIRE AT 12/22Z.
..KERR..05/12/20
ATTN...WFO...EWX...
&&
STATUS REPORT FOR WT 178
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC029-031-055-091-149-177-187-209-259-493-122200-
TX
. TEXAS COUNTIES INCLUDED ARE
BEXAR BLANCO CALDWELL
COMAL FAYETTE GONZALES
GUADALUPE HAYS KENDALL
WILSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 178
VALID 121925Z - 122040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 573.
..LEITMAN..05/12/20
ATTN...WFO...EWX...
&&
STATUS REPORT FOR WT 178
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC021-029-031-055-091-149-177-187-209-259-287-453-491-493-
122040-
TX
. TEXAS COUNTIES INCLUDED ARE
BASTROP BEXAR BLANCO
CALDWELL COMAL FAYETTE
GONZALES GUADALUPE HAYS
KENDALL LEE TRAVIS
WILLIAMSON WILSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 178
VALID 121830Z - 121940Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..LEITMAN..05/12/20
ATTN...WFO...EWX...
&&
STATUS REPORT FOR WT 178
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC021-029-031-055-091-149-177-187-209-259-287-453-491-493-
121940-
TX
. TEXAS COUNTIES INCLUDED ARE
BASTROP BEXAR BLANCO
CALDWELL COMAL FAYETTE
GONZALES GUADALUPE HAYS
KENDALL LEE TRAVIS
WILLIAMSON WILSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 178
VALID 121720Z - 121840Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..LEITMAN..05/12/20
ATTN...WFO...EWX...
&&
STATUS REPORT FOR WT 178
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC021-029-031-055-091-149-177-187-209-259-287-453-491-493-
121840-
TX
. TEXAS COUNTIES INCLUDED ARE
BASTROP BEXAR BLANCO
CALDWELL COMAL FAYETTE
GONZALES GUADALUPE HAYS
KENDALL LEE TRAVIS
WILLIAMSON WILSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (40%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (10%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
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
|
Low (10%)
|
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.
weather.gov 
@NWSSPC
