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 539
NWS Storm Prediction Center Norman OK
130 AM CDT Wed Oct 27 2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern and Central Texas
* Effective this Wednesday morning from 130 AM until 800 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY...A line of storms will continue generally eastward
overnight across a large part of north/central Texas, including
toward the I-35 corridor and Dallas-Fort Worth Metroplex. Damaging
winds are the primary concern, but a brief tornado risk may also
exist.
The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 15 miles east northeast
of Sherman TX to 45 miles south southwest of Temple 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 537...WW 538...
AVIATION...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 450. Mean storm motion vector
27040.
...Guyer
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 539
NWS Storm Prediction Center Norman OK
130 AM CDT Wed Oct 27 2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern and Central Texas
* Effective this Wednesday morning from 130 AM until 800 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY...A line of storms will continue generally eastward
overnight across a large part of north/central Texas, including
toward the I-35 corridor and Dallas-Fort Worth Metroplex. Damaging
winds are the primary concern, but a brief tornado risk may also
exist.
The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 15 miles east northeast
of Sherman TX to 45 miles south southwest of Temple 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 537...WW 538...
AVIATION...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 450. Mean storm motion vector
27040.
...Guyer
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 539 SEVERE TSTM TX 270630Z - 271300Z
AXIS..70 STATUTE MILES EAST AND WEST OF LINE..
15ENE GYI/SHERMAN TX/ - 45SSW TPL/TEMPLE TX/
..AVIATION COORDS.. 60NM E/W /44ESE ADM - 14NW CWK/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 27040.
LAT...LON 33809521 30549653 30549889 33809765
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 539 Status Report Messages:
STATUS REPORT #6 ON WW 539
VALID 271245Z - 271300Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 W CLL TO
10 NNW CLL.
REMAINING VALID PORTION OF WW 539 MAY BE ALLOWED TO EXPIRE AT
27/13Z.
..KERR..10/27/21
ATTN...WFO...FWD...EWX...
&&
STATUS REPORT FOR WS 539
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC285-271300-
TX
. TEXAS COUNTIES INCLUDED ARE
LAVACA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #5 ON WW 539
VALID 271140Z - 271240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 W CLL TO
45 SSE CRS.
..KERR..10/27/21
ATTN...WFO...FWD...EWX...
&&
STATUS REPORT FOR WS 539
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC021-055-149-177-187-285-287-289-395-493-271240-
TX
. TEXAS COUNTIES INCLUDED ARE
BASTROP CALDWELL FAYETTE
GONZALES GUADALUPE LAVACA
LEE LEON ROBERTSON
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 #4 ON WW 539
VALID 271020Z - 271140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 N AUS TO
10 WNW CRS TO 50 NW TYR TO 20 WNW PRX.
..KERR..10/27/21
ATTN...WFO...FWD...EWX...
&&
STATUS REPORT FOR WS 539
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC001-021-027-029-055-091-119-145-149-161-177-181-187-209-213-
223-259-277-285-287-289-293-309-331-349-379-395-453-467-491-493-
271140-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON BASTROP BELL
BEXAR CALDWELL COMAL
DELTA FALLS FAYETTE
FREESTONE GONZALES GRAYSON
GUADALUPE HAYS HENDERSON
HOPKINS KENDALL LAMAR
LAVACA LEE LEON
LIMESTONE MCLENNAN MILAM
NAVARRO RAINS ROBERTSON
TRAVIS VAN ZANDT 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 #3 ON WW 539
VALID 270930Z - 271040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 WNW AUS
TO 35 NNE ACT TO 25 N CRS TO 40 SW PRX TO 15 SSE DUA.
..KERR..10/27/21
ATTN...WFO...FWD...EWX...
&&
STATUS REPORT FOR WS 539
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC001-021-027-029-031-053-055-091-099-119-145-149-161-177-181-
187-209-213-217-223-259-277-285-287-289-293-299-309-331-349-379-
395-453-467-491-493-271040-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON BASTROP BELL
BEXAR BLANCO BURNET
CALDWELL COMAL CORYELL
DELTA FALLS FAYETTE
FREESTONE GONZALES GRAYSON
GUADALUPE HAYS HENDERSON
HILL HOPKINS KENDALL
LAMAR LAVACA LEE
LEON LIMESTONE LLANO
MCLENNAN MILAM NAVARRO
RAINS ROBERTSON TRAVIS
VAN ZANDT 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 539
VALID 270835Z - 270940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 SSE BWD
TO 30 SSW FTW TO 10 NNW DAL TO 10 NW GYI.
..KERR..10/27/21
ATTN...WFO...FWD...EWX...
&&
STATUS REPORT FOR WS 539
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC001-027-035-053-085-099-119-139-145-147-161-181-193-213-217-
223-231-251-257-277-281-289-293-299-309-331-349-379-395-397-467-
491-270940-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON BELL BOSQUE
BURNET COLLIN CORYELL
DELTA ELLIS FALLS
FANNIN FREESTONE GRAYSON
HAMILTON HENDERSON HILL
HOPKINS HUNT JOHNSON
KAUFMAN LAMAR LAMPASAS
LEON LIMESTONE LLANO
MCLENNAN MILAM NAVARRO
RAINS ROBERTSON ROCKWALL
VAN ZANDT 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 539
VALID 270730Z - 270840Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..KERR..10/27/21
ATTN...WFO...FWD...EWX...
&&
STATUS REPORT FOR WS 539
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC001-027-035-053-085-097-099-113-119-121-139-145-147-161-181-
193-213-217-221-223-231-251-257-277-281-289-293-299-309-331-349-
367-379-395-397-425-439-467-491-497-270840-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON BELL BOSQUE
BURNET COLLIN COOKE
CORYELL DALLAS DELTA
DENTON ELLIS FALLS
FANNIN FREESTONE GRAYSON
HAMILTON HENDERSON HILL
HOOD HOPKINS HUNT
JOHNSON KAUFMAN LAMAR
LAMPASAS LEON LIMESTONE
LLANO MCLENNAN MILAM
NAVARRO PARKER RAINS
ROBERTSON ROCKWALL SOMERVELL
TARRANT VAN ZANDT WILLIAMSON
WISE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (10%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Low (10%)
|
Hail
Probability of 10 or more severe hail events
|
Low (<5%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (<5%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (80%)
|
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 
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