Alert archive / Texas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 21, NWS San Angelo, TX

March 26, 2018Coke County, Nolan County, Taylor County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Mar 26, 2018, 7:45 PM CDT for Coke County, Nolan County, Taylor County, Texas. It was in force for 45 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
Mar 26, 2018, 7:45 PM CDT (00:45 UTC)
Expired
Mar 26, 2018, 8:30 PM CDT
In force
45 min
Issued by
NWS San Angelo, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Coke County, TX, Nolan County, TX, Taylor County, TX

The radar

The San Angelo radar (KSJT), 92 km from the middle of the area, began a volume at 00:46 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 26, 12:37 PM CDTSevere Thunderstorm WatchSPC8 hr
Mar 26, 2:56 PM CDTSevere Thunderstorm WatchSPC11 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 0.8 hours before the alert went out and 185 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-pSkew-T log-p diagram, Midland Regional, TX at 00:00Z on 2018-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 00:00Z on 2018-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -222 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
22 J/kg
Mixed-layer CIN
-117 J/kg
Mixed-layer LCL
2214 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
-222 m²/s²
0-3 km storm-relative helicity
-153 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

007 
WUUS54 KSJT 270045
SVRSJT
TXC081-353-441-270130-
/O.NEW.KSJT.SV.W.0021.180327T0045Z-180327T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service San Angelo TX
745 PM CDT MON MAR 26 2018

The National Weather Service in San Angelo has issued a

* Severe Thunderstorm Warning for...
  Northeastern Coke County in west central Texas...
  Southeastern Nolan County in west central Texas...
  Southwestern Taylor County in west central Texas...

* Until 830 PM CDT

* At 743 PM CDT, a severe thunderstorm was located 7 miles south of
  Maryneal, or 8 miles west of Blackwell, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* This severe thunderstorm will be near,
  Blackwell around 755 PM CDT. 
  Nolan and Hylton around 805 PM CDT. 
  Happy Valley around 815 PM CDT. 

Other locations impacted by this severe thunderstorm include Camp
Butman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3237 10004 3210 9994 3208 10023 3207 10025
      3203 10050 3214 10055 3221 10046
TIME...MOT...LOC 0043Z 254DEG 33KT 3213 10045 

HAIL...1.00IN
WIND...60MPH
 
$$

PO
2 follow-up statements
465 
WWUS54 KSJT 270107
SVSSJT

Severe Weather Statement
National Weather Service San Angelo TX
807 PM CDT MON MAR 26 2018

TXC081-270115-
/O.CAN.KSJT.SV.W.0021.000000T0000Z-180327T0130Z/
Coke TX-
807 PM CDT MON MAR 26 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN COKE COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A severe thunderstorm watch remains in effect until 900 PM CDT for
west central Texas.

LAT...LON 3237 10004 3218 9997 3213 10027 3214 10037
      3224 10038
TIME...MOT...LOC 0105Z 250DEG 29KT 3220 10029 

$$

TXC353-441-270130-
/O.CON.KSJT.SV.W.0021.000000T0000Z-180327T0130Z/
Nolan TX-Taylor TX-
807 PM CDT MON MAR 26 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR SOUTHEASTERN NOLAN AND SOUTHWESTERN TAYLOR COUNTIES...

At 805 PM CDT, a severe thunderstorm was located near Nolan, or 7
miles north of Blackwell, moving northeast at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

This severe storm will be near...
  Nolan around 815 PM CDT. 

Other locations impacted by this severe thunderstorm include Camp
Butman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3237 10004 3218 9997 3213 10027 3214 10037
      3224 10038
TIME...MOT...LOC 0105Z 250DEG 29KT 3220 10029 

HAIL...1.00IN
WIND...60MPH
 
$$

PO
244 
WWUS54 KSJT 270116
SVSSJT

Severe Weather Statement
National Weather Service San Angelo TX
816 PM CDT MON MAR 26 2018

TXC353-441-270130-
/O.CON.KSJT.SV.W.0021.000000T0000Z-180327T0130Z/
Nolan TX-Taylor TX-
816 PM CDT MON MAR 26 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR SOUTHEASTERN NOLAN AND WEST CENTRAL TAYLOR COUNTIES...

At 815 PM CDT, a severe thunderstorm was located near Nolan, or 12
miles northeast of Blackwell, moving northeast at 30 mph.

HAZARD...60 mph wind gusts and half dollar size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

This severe thunderstorm will remain over mainly rural areas of 
southeastern Nolan and west central Taylor Counties, including the 
following locations: Camp Butman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3237 10004 3220 9998 3217 10023 3218 10028
      3227 10030
TIME...MOT...LOC 0115Z 254DEG 33KT 3223 10018 

HAIL...1.25IN
WIND...60MPH
 
$$

PO

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 26, 7:00 PM CDTSevere Thunderstorm WarningSJTCoke, Nolan, Sterling45 min
Mar 26, 7:13 PM CDTSevere Thunderstorm WarningSJTFisher, Haskell, Jones47 min
Mar 26, 7:17 PM CDTSevere Thunderstorm WarningSJTFisher, Jones, Nolan, Taylor33 min
Mar 26, 8:04 PM CDTSevere Thunderstorm WarningSJTHaskell, Shackelford, Throckmorton26 min
Mar 26, 8:30 PM CDTSevere Thunderstorm WarningSJTShackelford, Throckmorton45 min
Mar 26, 8:37 PM CDTSpecial Weather StatementSJTShackelford23 min
Mar 26, 10:08 PM CDTSpecial Weather StatementSJTSterling37 min
Mar 26, 10:55 PM CDTSpecial Weather StatementSJTCoke35 min
Mar 26, 11:05 PM CDTSpecial Weather StatementSJTIrion25 min
Mar 26, 11:32 PM CDTSevere Thunderstorm WarningSJTCoke, Irion, Tom Green58 min
Mar 26, 11:42 PM CDTSpecial Weather StatementSJTNolan33 min
Mar 27, 12:00 AM CDTSpecial Weather StatementSJTTaylor45 min
Mar 27, 12:12 AM CDTSevere Thunderstorm WarningSJTCallahan, Taylor48 min
Mar 27, 12:23 AM CDTSpecial Weather StatementSJTRunnels67 min
Mar 27, 12:55 AM CDTSpecial Weather StatementSJTCrockett50 min
Mar 27, 1:02 AM CDTSpecial Weather StatementSJTCallahan, Shackelford43 min
Mar 27, 1:46 AM CDTSpecial Weather StatementSJTCrockett, Schleicher44 min
Mar 27, 2:34 AM CDTSpecial Weather StatementSJTSchleicher41 min
Mar 27, 3:21 AM CDTSpecial Weather StatementSJTColeman, Concho, Runnels54 min
Mar 27, 3:26 AM CDTSpecial Weather StatementSJTCrockett64 min
Mar 27, 4:18 AM CDTSpecial Weather StatementSJTBrown, Coleman57 min
Mar 27, 8:44 AM CDTSpecial Weather StatementSJTColeman46 min

Nearby

Severe Thunderstorm Warnings in Texas, 2018Every severe thunderstorm warning in 2018

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.