Alert archive / Texas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 252, NWS Amarillo, TX

August 17, 2017Hutchinson County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Aug 17, 2017, 8:06 PM CDT for Hutchinson County, Texas. It was in force for 54 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
Aug 17, 2017, 8:06 PM CDT (01:06 UTC)
Expired
Aug 17, 2017, 9:00 PM CDT
In force
54 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

County Hutchinson County, TX

The radar

The Amarillo radar (KAMA), 79 km from the middle of the area, began a volume at 01:06 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.1 hours before the alert went out and 79 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, Amarillo Airport, TX at 00:00Z on 2017-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1098 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 00:00Z on 2017-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.193958Sfc1 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
1098 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1969 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted.

687 
WUUS54 KAMA 180106
SVRAMA
TXC233-180200-
/O.NEW.KAMA.SV.W.0252.170818T0106Z-170818T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
806 PM CDT THU AUG 17 2017

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Central Hutchinson County in the Panhandle of Texas...

* Until 900 PM CDT

* At 806 PM CDT, a severe thunderstorm was located over Pringle, or
  19 miles north of Borger, moving southeast at 15 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Minor damage to roofs, siding, and trees is possible. 
           People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. 

* Locations impacted include...
  Borger, Stinnett and Pringle. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3594 10156 3605 10143 3590 10109 3579 10110
      3564 10133
TIME...MOT...LOC 0106Z 311DEG 14KT 3594 10144 

HAIL...1.50IN
WIND...60MPH
 
$$

MJG
2 follow-up statements
862 
WWUS54 KAMA 180132
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
832 PM CDT THU AUG 17 2017

TXC233-180200-
/O.CON.KAMA.SV.W.0252.000000T0000Z-170818T0200Z/
Hutchinson TX-
832 PM CDT THU AUG 17 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR EASTERN HUTCHINSON COUNTY...

At 832 PM CDT, a severe thunderstorm was located 7 miles northeast of
Stinnett, or 16 miles north of Borger, moving southeast at 20 mph.

This is a very dangerous storm.

HAZARD...80 mph wind gusts and two inch hail. 

SOURCE...Radar indicated. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. Tree 
         damage and power outages are likely. People and animals 
         outdoors will be injured. Expect hail damage to roofs, 
         siding, windows, and vehicles. 

Locations impacted include...
Borger.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3597 10142 3599 10131 3590 10109 3579 10110
      3564 10133 3574 10141
TIME...MOT...LOC 0132Z 308DEG 16KT 3589 10134 

HAIL...2.00IN
WIND...80MPH
 
$$

MJG
978 
WWUS54 KAMA 180150
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
850 PM CDT THU AUG 17 2017

TXC233-180200-
/O.CON.KAMA.SV.W.0252.000000T0000Z-170818T0200Z/
Hutchinson TX-
850 PM CDT THU AUG 17 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR EASTERN HUTCHINSON COUNTY...

At 850 PM CDT, a severe thunderstorm was located 9 miles east of
Stinnett, or 14 miles northeast of Borger, moving southeast at 15
mph.

This is a very dangerous storm.

HAZARD...80 mph wind gusts and ping pong ball size hail. 

SOURCE...Radar indicated. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. Tree 
         damage and power outages are likely. People and animals 
         outdoors will be injured. Expect hail damage to roofs, 
         siding, windows, and vehicles. 

This severe thunderstorm will remain over mainly rural areas of
eastern Hutchinson County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3590 10137 3597 10126 3590 10109 3579 10110
      3565 10131 3573 10134
TIME...MOT...LOC 0150Z 311DEG 14KT 3584 10127 

HAIL...1.50IN
WIND...80MPH
 
$$

MJG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 7:04 PM CDTSevere Thunderstorm WarningAMASherman56 min
Aug 17, 7:20 PM CDTSevere Thunderstorm WarningAMAArmstrong, Carson, Potter, Randall55 min
Aug 17, 8:19 PM CDTSpecial Weather StatementAMAArmstrong56 min
Aug 17, 9:02 PM CDTSpecial Weather StatementAMARoberts58 min
Aug 17, 10:42 PM CDTSpecial Weather StatementAMAOchiltree48 min
Aug 17, 11:06 PM CDTSevere Thunderstorm WarningAMAOchiltree, Roberts54 min
Aug 17, 11:55 PM CDTSevere Thunderstorm WarningAMAHemphill, Roberts65 min
Aug 18, 12:46 AM CDTSevere Thunderstorm WarningAMALipscomb, Ochiltree74 min
Aug 18, 2:28 AM CDTSpecial Weather StatementAMAHansford62 min
Aug 18, 2:53 AM CDTAreal Flood AdvisoryAMAHemphill, Lipscomb, Ochiltree3 hr
Aug 18, 3:22 AM CDTSpecial Weather StatementAMAHansford, Ochiltree, Roberts, Sherman53 min

Nearby

Severe Thunderstorm Warnings in Texas, 2017Every severe thunderstorm warning in 2017

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.