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 190
NWS Storm Prediction Center Norman OK
1255 AM CDT Sat May 16 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southeast Texas
Coastal Waters
* Effective this Saturday morning from 1255 AM until 500 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Squall line with a history of strong to locally severe
wind gusts will likely persist east into southeast Texas before
weakening towards dawn.
The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 80 miles west of
Angleton TX to 30 miles north northeast of Galveston 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 189...
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 550. Mean storm motion vector
25035.
...Grams
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 190 SEVERE TSTM TX CW 160555Z - 161000Z
AXIS..45 STATUTE MILES NORTH AND SOUTH OF LINE..
80W LBX/ANGLETON TX/ - 30NNE GLS/GALVESTON TX/
..AVIATION COORDS.. 40NM N/S /33NW PSX - 43ESE IAH/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 25035.
LAT...LON 29769680 30389456 29089456 28469680
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 190 Status Report Messages:
STATUS REPORT #1 ON WW 190
VALID 160745Z - 160840Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SSE VCT
TO 30 N PSX TO 40 SSE CLL.
..GOSS..05/16/20
ATTN...WFO...HGX...
&&
STATUS REPORT FOR WS 190
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC015-039-071-157-167-201-291-321-473-481-160840-
TX
. TEXAS COUNTIES INCLUDED ARE
AUSTIN BRAZORIA CHAMBERS
FORT BEND GALVESTON HARRIS
LIBERTY MATAGORDA WALLER
WHARTON
$$
GMZ330-335-350-355-160840-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MATAGORDA BAY
GALVESTON BAY
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM
$$
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 (10%)
|
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
|
Low (10%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (<5%)
|
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 
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