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 199
NWS Storm Prediction Center Norman OK
545 PM CDT Thu May 21 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Parts of west central and northwest Texas
* Effective this Thursday afternoon and evening from 545 PM until
1100 PM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Thunderstorm development is expected soon along a dryline
from roughly San Angelo northward to near Childress. The storm
environment east of the dryline appears supportive of high-based
thunderstorms, with a mix of multicell clusters and some supercell
structures. Occasional large hail and damaging outflow winds will
be the main concerns through late evening.
The severe thunderstorm watch area is approximately along and 35
statute miles east and west of a line from 20 miles northwest of
Childress TX to 35 miles south southwest of San Angelo 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 198...
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 550. Mean storm motion vector
27015.
...Thompson
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 199
NWS Storm Prediction Center Norman OK
545 PM CDT Thu May 21 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Parts of west central and northwest Texas
* Effective this Thursday afternoon and evening from 545 PM until
1100 PM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Thunderstorm development is expected soon along a dryline
from roughly San Angelo northward to near Childress. The storm
environment east of the dryline appears supportive of high-based
thunderstorms, with a mix of multicell clusters and some supercell
structures. Occasional large hail and damaging outflow winds will
be the main concerns through late evening.
The severe thunderstorm watch area is approximately along and 35
statute miles east and west of a line from 20 miles northwest of
Childress TX to 35 miles south southwest of San Angelo 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 198...
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 550. Mean storm motion vector
27015.
...Thompson
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 199 SEVERE TSTM TX 212245Z - 220400Z
AXIS..35 STATUTE MILES EAST AND WEST OF LINE..
20NW CDS/CHILDRESS TX/ - 35SSW SJT/SAN ANGELO TX/
..AVIATION COORDS.. 30NM E/W /20NW CDS - 32SSW SJT/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 27015.
LAT...LON 34639991 30900014 30900132 34630114
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 199 Status Report Messages:
STATUS REPORT #3 ON WW 199
VALID 220335Z - 220440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 SW SJT TO
15 N SJT TO 35 SW ABI TO 25 NW ABI.
..SPC..05/22/20
ATTN...WFO...LUB...SJT...MAF...
&&
STATUS REPORT FOR WS 199
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC059-083-095-253-307-327-399-417-441-451-220440-
TX
. TEXAS COUNTIES INCLUDED ARE
CALLAHAN COLEMAN CONCHO
JONES MCCULLOCH MENARD
RUNNELS SHACKELFORD TAYLOR
TOM GREEN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 199
VALID 220125Z - 220240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 SW SJT TO
35 ESE BGS TO 75 NW ABI TO 45 SSE CDS TO 45 SSE CDS.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 660
..LYONS..05/22/20
ATTN...WFO...LUB...SJT...MAF...
&&
STATUS REPORT FOR WS 199
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC081-095-151-207-235-253-269-353-399-413-433-441-451-220240-
TX
. TEXAS COUNTIES INCLUDED ARE
COKE CONCHO FISHER
HASKELL IRION JONES
KING NOLAN RUNNELS
SCHLEICHER STONEWALL TAYLOR
TOM GREEN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 199
VALID 220020Z - 220140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..LYONS..05/22/20
ATTN...WFO...LUB...SJT...MAF...
&&
STATUS REPORT FOR WS 199
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC075-081-095-101-125-151-191-207-235-253-263-269-335-345-353-
399-413-415-431-433-441-451-220140-
TX
. TEXAS COUNTIES INCLUDED ARE
CHILDRESS COKE CONCHO
COTTLE DICKENS FISHER
HALL HASKELL IRION
JONES KENT KING
MITCHELL MOTLEY NOLAN
RUNNELS SCHLEICHER SCURRY
STERLING STONEWALL TAYLOR
TOM GREEN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (<5%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
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
|
Mod (30%)
|
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
