Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS San Angelo, TX

September 30, 2021Fisher County, Texas

NWS San Angelo, TX issued this special weather statement at Sep 30, 2021, 3:16 PM CDT for Fisher County, Texas. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Sep 30, 2021, 3:16 PM CDT (20:16 UTC)
Expired: Sep 30, 2021, 4:00 PM CDT
In force: 44 min
Issued by: NWS San Angelo, TX
Hail: 0.50 in
Wind: 40

County Fisher County, TX

The radar

The Dyess AFB radar (KDYX), 92 km from the middle of the area, began a volume at 20:16 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 8.3 hours before the alert went out and 199 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1726 J/kg
Mixed-layer CIN: -108 J/kg
Mixed-layer LCL: 1297 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Angelo, TX wrote its last area forecast discussion before this special weather statement went out at Sep 30, 2:17 PM CDT, 59 minutes earlier.

Area forecast discussion, Sep 30, 2:17 PM CDT, 59 minutes before

Area Forecast Discussion
National Weather Service San Angelo TX
217 PM CDT Thu Sep 30 2021

...New LONG TERM...

.SHORT TERM...
(This evening through Friday)
Issued at 149 PM CDT Thu Sep 30 2021

Showers and thunderstorms are developing across the Big Country
early this afternoon, in advance of a weak cold front and some lift
ahead of an upper low/trough over the Four Corners region. This
system will advance east across New Mexico tonight and into West
Texas by tomorrow afternoon. As an embedded disturbance approaches
from the west, lift will increase through the evening hours, with
convection increasing in areal coverage. A moderately unstable
airmass is in place this afternoon, along with steep lapse rates
and enough shear for a few severe storms to develop into the
evening hours. The best chance for severe storms will generally be
west of a Stamford, San Angelo to Sonora line, where large hail
and damaging winds will be the main hazards. Convection is
expected to overspread the rest of the area overnight, with the
severe threat decreasing. In addition to severe storms, heavy
rainfall and localized flooding will be a concern through tonight,
just about anywhere across the forecast area as PWATS remain
between 1.5 and 2 inches.

For Friday, with additional upper level support, a stalled frontal
boundary over the area and a moist airmass in place, additional
showers and thunderstorms are expected. The main concern tomorrow
will be heavy rainfall and localized flooding. Temperatures will
cooler tomorrow, with highs in the upper 70s to around 80 degrees.

&&

.LONG TERM...
(Friday night through next Thursday)
Issued at 215 PM CDT Thu Sep 30 2021

By 0Z Saturday, the upper low responsible for bringing
substantial chances for showers and storms Thursday and Friday will
be centered over southeastern Colorado, northeastern New Mexico, and
southwestern Kansas. With shortwaves expected to continue rounding
the base of the low providing of upper level support, plentiful
atmospheric moisture with continued south/southeasterly flow through
850 mb (along with PWat values between 1.4-1.75 inches), and an
expected stalled frontal boundary to continue providing surface
lift, have kept widespread Likely PoPs through Friday night. As we
move into Saturday, the upper low will continue to move northeast
into Kansas before opening up into a trough early on Sunday. As the
low moves northeast, rain chances will decrease across the area from
west to east on Saturday. By 09Z Sunday, rain chances will come to
an end across the area and skies will begin to clear out as drier
air filters in behind the front. Lows Friday night will be in the
low 60s behind the stalled front with mid to upper 60s ahead of the
front. Highs on Saturday will stick in the upper 70s to low 80s due
to enhanced cloud cover and rain chances.

The rest of the long term looks dry and pleasant. An upper level
ridge will follow in behind the aforementioned upper level low
allowing for increased subsidence. The beginning of next week is
expected to have plenty of sunshine and beautiful daytime highs in
the upper 70s to low 80s with dewpoints in the low 50s and overnight
lows in the mid to upper 50s. It looks as though we might finally
get our shot at real fall as we head into October.

&&

.AVIATION...
(18Z TAFS)
Issued at 1250 PM CDT Thu Sep 30 2021

Currently seeing VFR conditions across the terminals. Scattered
to numerous showers and thunderstorms will develop initially
across the northern terminals this afternoon and early evening,
then spread south and east across the remaining terminals later
this evening and overnight. Some hail and gusty winds possible
mainly at KSJT and KABI through mid evening, with heavy rainfall
possible as well. Expect lower ceilings and visibilities
associated with convection. A weak cold front will move through
the area this evening and overnight, with mainly MVFR ceilings
developing after midnight. Additional showers/storms are possible
into the morning hours.

&&

.PRELIMINARY POINT TEMPS/POPS...
Abilene 	 64  80  64  81 /  80  70  80  40
San Angelo 	 63  80  63  83 /  80  70  80  40
Junction 	 64  82  65  83 /  70  80  70  70
Brownwood 	 64  81  65  83 /  80  70  80  70
Sweetwater 	 63  78  63  81 /  80  70  80  30
Ozona      	 63  78  64  82 /  80  70  80  40

&&

.SJT WATCHES/WARNINGS/ADVISORIES...
None.
&&

SHORT TERM...24
LONG TERM....50
AVIATION...24

Hazardous weather outlook, Sep 30, 1:50 PM CDT, 1 hour 26 minutes before

Hazardous Weather Outlook
National Weather Service San Angelo TX
150 PM CDT Thu Sep 30 2021

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-011900-
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-
150 PM CDT Thu Sep 30 2021

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

.DAY ONE...This Afternoon and Tonight

Showers and thunderstorms are expected this afternoon through
tonight. The main hazard is heavy rainfall which could lead to
localized flooding. However the threat for damaging winds and
large hail is present and will be possible with storms,
especially this afternoon and early this evening. Occasional to
frequent lightning will also be possible with these storms.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Showers and thunderstorms will continue to be possible both Friday
and Saturday. Heavy rainfall leading to localized flooding and
occasional lightning will be the main hazards. Severe weather is
not currently anticipated with this activity.

.SPOTTER INFORMATION STATEMENT...
Spotter activation will likely be needed this afternoon and
evening, mainly in the Big Country, Concho Valley, and Edwards
Plateau. Please relay any information about observed weather to
the NWS while following all local, state and CDC guidelines.

In the hours before

Special weather statement, Sep 30, 10:36 AM CDT, 4 hours 40 minutes before

Special Weather Statement
National Weather Service San Angelo TX
1036 AM CDT Thu Sep 30 2021

TXZ098-113-301615-
Haskell TX-Jones TX-
1036 AM CDT Thu Sep 30 2021

...A strong thunderstorm will impact portions of southern Haskell and
northeastern Jones Counties through 1115 AM CDT...

At 1036 AM CDT, Doppler radar was tracking a strong thunderstorm near
Paint Creek, moving north at 20 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Haskell, Stamford, Rule, Lake Stamford Marina, Irby and Paint Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3330 9947 3293 9962 3293 9994 3323 9993
TIME...MOT...LOC 1536Z 189DEG 16KT 3303 9972

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

24

Special weather statement, Sep 30, 12:58 PM CDT, 2 hours 18 minutes before

Special Weather Statement
National Weather Service San Angelo TX
1258 PM CDT Thu Sep 30 2021

TXZ054-301845-
Nolan TX-
1258 PM CDT Thu Sep 30 2021

...A strong thunderstorm will impact portions of northwestern Nolan
County through 145 PM CDT...

At 1258 PM CDT, Doppler radar was tracking a strong thunderstorm over
Roscoe. This storm was nearly stationary.

HAZARD...Winds in excess of 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Sweetwater, Roscoe, Wastella, Champion, Camp Boothe Oaks, I-
20 Near The Nolan-Mitchell County Line, Us-84 Near The Nolan-
Fisher County Line and The Intersection Of Ranch Road 608 And Highway
147.

This includes Interstate 20 between Mile Markers 229 and 243.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
west central Texas.

&&

LAT...LON 3233 10041 3233 10067 3252 10066 3252 10042
TIME...MOT...LOC 1758Z 285DEG 3KT 3242 10055

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

Special weather statement, Sep 30, 1:46 PM CDT, 1 hour 30 minutes before

Special Weather Statement
National Weather Service San Angelo TX
146 PM CDT Thu Sep 30 2021

TXZ114-301930-
Shackelford TX-
146 PM CDT Thu Sep 30 2021

...A strong thunderstorm will impact portions of northeastern
Shackelford County through 230 PM CDT...

At 145 PM CDT, Doppler radar was tracking a strong thunderstorm near
Albany, moving northeast at 20 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Albany and Fort Griffin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3295 9909 3291 9910 3267 9931 3276 9948
      3296 9931 3296 9910
TIME...MOT...LOC 1845Z 208DEG 19KT 3275 9936

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

Special weather statement, Sep 30, 2:42 PM CDT, 34 minutes before

Special Weather Statement
National Weather Service San Angelo TX
242 PM CDT Thu Sep 30 2021

TXZ113-114-127-128-302030-
Shackelford TX-Callahan TX-Jones TX-Taylor TX-
242 PM CDT Thu Sep 30 2021

...A strong thunderstorm will impact portions of northwestern
Callahan, southeastern Jones, southwestern Shackelford and
northeastern Taylor Counties through 330 PM CDT...

At 241 PM CDT, Doppler radar was tracking a strong thunderstorm over
Abilene, moving north at 20 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Abilene, Wylie, Tye, Hawley, Nugent, Hamby, Dyess Afb, Impact,
Hodges, Lake Fort Phantom Hill and Kirby Lake.

This includes Interstate 20 between Mile Markers 278 and 295.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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 900 PM CDT for
west central Texas.

&&

LAT...LON 3235 9960 3238 9986 3271 9988 3270 9953
TIME...MOT...LOC 1941Z 189DEG 16KT 3245 9969

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

Special weather statement, Sep 30, 2:50 PM CDT, 26 minutes before

Special Weather Statement
National Weather Service San Angelo TX
250 PM CDT Thu Sep 30 2021

TXZ054-064-065-302030-
Nolan TX-Coke TX-Sterling TX-
250 PM CDT Thu Sep 30 2021

...Strong thunderstorms will impact portions of northwestern Coke,
east central Sterling and western Nolan Counties through 330 PM
CDT...

At 250 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Champion to Silver to near Sterling City.
Movement was east at 20 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Roscoe, Sterling City, Silver, Broome, Sanco, Champion, The
Intersection Of Highway 158 And Ranch Road 2059, The Intersection Of
Ranch Road 608 And Highway 147 and I-20 Near The Nolan-Mitchell
County Line.

This includes Interstate 20 between Mile Markers 229 and 237.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
west central Texas.

&&

LAT...LON 3245 10051 3198 10049 3174 10085 3184 10107
      3204 10076 3209 10075 3209 10066 3244 10066
TIME...MOT...LOC 1950Z 268DEG 18KT 3237 10063 3205 10068 3184 10095

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

JW

Special weather statement, Sep 30, 3:16 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service San Angelo TX
316 PM CDT Thu Sep 30 2021

TXZ049-054-113-302100-
Fisher TX-Nolan TX-Jones TX-
316 PM CDT Thu Sep 30 2021

...A strong thunderstorm will impact portions of southwestern Jones,
northeastern Nolan and southeastern Fisher Counties through 400 PM
CDT...

At 315 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles north of Lake Sweetwater, or 8 miles northeast of Sweetwater,
moving north at 25 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Sweetwater, Roby, Sylvester, Longworth, Mccaulley, Busby and The
Intersection Of Us-180 And Ranch Road 126.

This includes Interstate 20 between Mile Markers 247 and 260.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
west central Texas.

&&

LAT...LON 3286 10041 3277 9997 3252 10013 3252 10015
      3249 10015 3241 10020 3250 10046
TIME...MOT...LOC 2015Z 201DEG 20KT 3253 10028

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

KB

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 29, 7:04 PM CDT	Special Weather Statement	SJT	McCulloch	41 min
Sep 29, 8:16 PM CDT	Areal Flood Advisory	SJT	McCulloch, Menard	119 min
Sep 29, 8:32 PM CDT	Special Weather Statement	SJT	Menard	43 min
Sep 29, 9:21 PM CDT	Special Weather Statement	SJT	Mason	39 min
Sep 29, 9:48 PM CDT	Areal Flood Advisory	SJT	Kimble, Mason	117 min
Sep 30, 10:36 AM CDT	Special Weather Statement	SJT	Haskell	39 min
Sep 30, 12:58 PM CDT	Special Weather Statement	SJT	Nolan	47 min
Sep 30, 1:44 PM CDT	Flash Flood Warning Considerable damage threat	SJT	Nolan	3 hr
Sep 30, 1:46 PM CDT	Special Weather Statement	SJT	Shackelford	44 min
Sep 30, 2:06 PM CDT	Severe Thunderstorm Warning	SJT	Nolan	39 min
Sep 30, 2:27 PM CDT	Severe Thunderstorm Warning	SJT	Nolan	48 min
Sep 30, 2:42 PM CDT	Special Weather Statement	SJT	Jones	48 min
Sep 30, 2:44 PM CDT	Areal Flood Advisory	SJT	Jones, Taylor	2 hr
Sep 30, 2:50 PM CDT	Special Weather Statement	SJT	Sterling	40 min
Sep 30, 3:08 PM CDT	Flash Flood Warning Considerable damage threat	SJT	Nolan	3 hr
Sep 30, 3:28 PM CDT	Special Weather Statement	SJT	Jones	47 min
Sep 30, 3:29 PM CDT	Flash Flood Warning Considerable damage threat	SJT	Callahan, Jones, Shackelford, Taylor	3 hr
Sep 30, 3:45 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan, Taylor	28 min
Sep 30, 3:51 PM CDT	Severe Thunderstorm Warning	SJT	Jones, Taylor	39 min
Sep 30, 4:09 PM CDT	Areal Flood Advisory	SJT	Fisher, Jones, Nolan, Runnels, Taylor	2 hr
Sep 30, 4:27 PM CDT	Special Weather Statement	SJT	Runnels	48 min
Sep 30, 4:43 PM CDT	Special Weather Statement	SJT	Runnels	32 min
Sep 30, 5:16 PM CDT	Special Weather Statement	SJT	Callahan, Coleman	44 min
Sep 30, 5:50 PM CDT	Special Weather Statement	SJT	Crockett	40 min
Sep 30, 5:52 PM CDT	Areal Flood Advisory	SJT	Coleman, Concho, McCulloch, Runnels	113 min
Sep 30, 5:58 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Concho, McCulloch	47 min
Sep 30, 6:27 PM CDT	Areal Flood Advisory	SJT	Crockett, Irion	2 hr
Sep 30, 6:43 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch	34 min
Sep 30, 6:46 PM CDT	Flash Flood Warning Considerable damage threat	SJT	Coleman, Concho, McCulloch	3 hr

Nearby

Special Weather Statements in Texas, 2021 Every special weather statement in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.