Severe Thunderstorm Warning 53, NWS San Angelo, TX

Area Forecast Discussion
National Weather Service San Angelo TX
629 PM CDT Mon Apr 10 2017

.AVIATION...
/00Z TAFS/

Look for VFR conditions to dominate most of West Central Texas for
the next 24 hours. A cold front will stall along or just south of
our Interstate 10 corridor tonight. Stratus will then develop
near sunrise, across mainly our southern counties. Plus, showers
and thunderstorms are possible, mainly along and near this front.
By tomorrow afternoon, expect VFR conditions across all of West
Central Texas.

&&

.PREV DISCUSSION... /issued 307 PM CDT Mon Apr 10 2017/

SHORT TERM...
(Tonight and Tuesday)

A cold front is moving south through the forecast area. Currently it
extends from San Saba county through northwest Menard County to
northwest Crockett County. Isolated to scattered rain showers with
very isolated heavy showers were mostly in southern Tom Green
County along and within 50 miles north of the front.

The cold front will slow down as it moves southeast through the
forecast area and there is a chance for heavy rain in San Saba,
Mason and Kimble counties this evening and overnight...a Flash Flood
Watch is currently posted for those counties until 7AM CDT Tuesday.
A few storms could reach severe levels over southeastern counties
later today, therefore the Storm Prediction Center has issued a
Severe Thunderstorm Watch for San Saba, McCullough, Menard, Mason,
Schleicher, Sutton and Kimble Counties until 11PM CDT tonight.

Expect cooler temperatures on Tuesday with lows near 50 degrees in
the Big Country to near 60 from Ozona to Junction. High temperatures
on Tuesday will be in the low to mid 70s with some cloudiness
lingering. Chances for rain of 30 to 50 percent continues through
mid-Tuesday across southern and especially southeastern most
counties. Rain chances are 20 percent or less from San Angelo
northward.

22

LONG TERM...
(Tuesday night through Sunday)

Quieter weather is expected Tuesday night into Wednesday as weak
upper level ridging develops across West Central Texas ahead of the
next approaching upper level shortwave trough. Overnight lows will
mainly be in the mid 50s to near 60 degrees, with high temperatures
on Wednesday near seasonal normals, in the mid to upper 70s.

The next upper level shortwave trough will track across the South
Plains/Texas Panhandle Wednesday night into Thursday. At this point,
the best chance for showers and thunderstorms looks to be across our
western and northern counties, closest to the track of the
aforementioned shortwave trough. Current rain chances range from
likely across our northwest counties, to slight chance across our
southeast counties. Highs on Thursday will be near seasonal normals,
in the mid to upper 70s. Drier conditions are anticipated Friday and
Saturday as weak upper level ridging develops across the forecast
area.

The next chance for showers and thunderstorms looks to be late next
weekend into the first part of next week as the next upper level
storm system approaches from the west. For now, PoPs were kept in
the slight chance/chance category given the uncertainty this far
out.

Daniels

&&

.PRELIMINARY POINT TEMPS/POPS...
Abilene 	 53  74  58  77 /  20  10  10  20
San Angelo 	 57  74  59  79 /  20  20  20  20
Junction 	 60  74  60  78 /  60  40  10  20
Brownwood 	 57  73  58  77 /  40  20  10  20
Sweetwater 	 52  72  58  76 /  10  10  10  20
Ozona      	 58  73  60  75 /  30  30  20  20

&&

.SJT WATCHES/WARNINGS/ADVISORIES...
Flash Flood Watch through Tuesday morning for Kimble-Mason-San
Saba.

&&

Hazardous Weather Outlook
National Weather Service San Angelo TX
259 PM CDT Mon Apr 10 2017

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-112000-
Fisher-Nolan-Sterling-Coke-Runnels-Irion-Tom Green-Concho-
Crockett-Schleicher-Sutton-Haskell-Throckmorton-Jones-Shackelford-
Taylor-Callahan-Coleman-Brown-McCulloch-San Saba-Menard-Kimble-
Mason-
259 PM CDT Mon Apr 10 2017

This Hazardous Weather Outlook is for portions of west central
Texas.

.DAY ONE...This Afternoon and Tonight

Thunderstorms are possible this afternoon into tonight. Some of
the storms may become severe this afternoon and evening, mainly
south and east of a Brownwood to Eldorado to Sonora line. The main
hazards will be dangerous lightning, large hail, and damaging
winds. In addition, locally heavy rainfall may caused localized
flooding, especially in urban areas and poor drainage places.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

An isolated severe thunderstorm is possible west of a line from
Rotan to Mertzon to Ozona Wednesday night into Thursday morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon.

Special Weather Statement
National Weather Service San Angelo TX
806 PM CDT MON APR 10 2017

TXZ155-170-110145-
Mason TX-San Saba TX-
806 PM CDT MON APR 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN MASON AND
SOUTHWESTERN SAN SABA COUNTIES UNTIL 845 PM CDT...

At 805 PM CDT, Doppler radar was tracking a strong thunderstorm near
Fredonia, or 11 miles northeast of Mason, moving northeast at 15 mph.

Dime size hail and wind gusts up to 50 mph will be possible with this
storm.

This strong thunderstorm will be near...
  Pontotoc around 835 PM CDT.

A severe thunderstorm watch remains in effect until 1100 PM CDT for
west central Texas.

LAT...LON 3092 9883 3092 9897 3077 9897 3081 9919
      3103 9904 3094 9881
TIME...MOT...LOC 0105Z 220DEG 11KT 3086 9908

04

Special Weather Statement
National Weather Service San Angelo TX
848 PM CDT MON APR 10 2017

TXZ155-170-110230-
Mason TX-San Saba TX-
848 PM CDT MON APR 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN SAN SABA COUNTY UNTIL
930 PM CDT...

At 847 PM CDT, Doppler radar was tracking a strong thunderstorm near
Field Creek, or 17 miles northwest of Llano, moving east at 20 mph
along the southern San Saba County Line.

Dime size hail and wind gusts up to 50 mph will be possible with this
storm along with heavy rainfalls up to 2 inches.

This strong thunderstorm will be near...
  Cherokee around 925 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

A severe thunderstorm watch remains in effect until 1100 PM CDT for
west central Texas.

LAT...LON 3092 9850 3092 9896 3082 9897 3082 9899
      3100 9902 3111 9847 3108 9846 3106 9849
      3104 9846
TIME...MOT...LOC 0147Z 263DEG 16KT 3093 9889

04

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
908 PM CDT MON APR 10 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0905 PM     HAIL             6 E MASON               30.75N  99.13W
04/10/2017  E1.50 INCH       MASON              TX   LAW ENFORCEMENT

&&

EVENT NUMBER SJT1700054

HUBER

Special Weather Statement
National Weather Service San Angelo TX
918 PM CDT MON APR 10 2017

TXZ169-110245-
Kimble TX-
918 PM CDT MON APR 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN KIMBLE COUNTY UNTIL
945 PM CDT...

At 918 PM CDT, Doppler radar was tracking a strong thunderstorm 4
miles southwest of London, or 12 miles northeast of Junction, moving
east at 15 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm. Heavy rainfall of 1 to 2 inches is also possible.

This strong thunderstorm will be near...
  London around 925 PM CDT.

Other locations impacted by this storm include The Intersection Of
US-
377 And Ranch Road 385 and The Intersection Of Ranch Road 385 And
Ranch Road 1871.

A severe thunderstorm watch remains in effect until 1100 PM CDT for
west central Texas.

LAT...LON 3056 9975 3071 9973 3071 9949 3052 9949
TIME...MOT...LOC 0218Z 269DEG 12KT 3060 9961

04

Special Weather Statement
National Weather Service San Angelo TX
946 PM CDT MON APR 10 2017

TXZ170-110330-
Mason TX-
946 PM CDT MON APR 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL MASON COUNTY UNTIL
1030 PM CDT...

At 945 PM CDT, Doppler radar was tracking a strong thunderstorm near
Castell, or 10 miles east of Mason, moving east at 10 mph.

Dime size hail and wind gusts up to 50 mph will be possible with this
storm. Heavy rainfall amounts of 3 inches may produce flash flooding.

This storm will remain over mainly rural areas of east central Mason
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

A severe thunderstorm watch remains in effect until 1100 PM CDT for
west central Texas.

LAT...LON 3065 9911 3082 9913 3085 9897 3076 9896
      3065 9896
TIME...MOT...LOC 0245Z 269DEG 10KT 3075 9905

04

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