Alert archive / Texas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 176, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Aug 8, 2020, 8:03 PM CDT for Dallam County, Sherman County, Texas. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 8, 2020, 8:03 PM CDT (01:03 UTC)
- Expired
- Aug 8, 2020, 9:00 PM CDT
- In force
- 57 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Dallam County, TX, Sherman County, TX
The radar
The Amarillo radar (KAMA), 126 km from the middle of the area, began a volume at 01:03 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
Dodge City, (KDDC), launched 00:00Z, 1.1 hours before the alert went out and 266 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.
- Mixed-layer CAPE
- 1256 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 2876 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.6
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 8, 5:54 PM CDT, 2 hours 9 minutes earlier.
Area forecast discussion, Aug 8, 5:54 PM CDT, 2 hours 9 minutes before
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</html>Hazardous weather outlook, Aug 8, 2:23 PM CDT, 5 hours 40 minutes before
Hazardous Weather Outlook National Weather Service Amarillo TX 223 PM CDT Sat Aug 8 2020 OKZ001>003-TXZ001>020-317-090730- Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb- Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson- Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth- Palo Duro Canyon- 223 PM CDT Sat Aug 8 2020 This Hazardous Weather Outlook is for the Texas and Oklahoma Panhandles. .DAY ONE...Tonight. Thunderstorms are expected through tonight across western portions of the Panhandles. A few storms may be strong with gusty winds being the primary hazard. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Showers and thunderstorms are expected to continue through Sunday and into early next week. Storms will have the potential to be strong with gusty winds and small hail. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time.
In the hours before
Special weather statement, Aug 8, 6:00 PM CDT, 2 hours 3 minutes before
Special Weather Statement
National Weather Service Amarillo TX
600 PM CDT Sat Aug 8 2020
TXZ004-005-009-010-082330-
Hemphill TX-Ochiltree TX-Roberts TX-Lipscomb TX-
600 PM CDT Sat Aug 8 2020
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN LIPSCOMB...NORTHERN
ROBERTS...NORTHWESTERN HEMPHILL AND SOUTHEASTERN OCHILTREE COUNTIES
UNTIL 630 PM CDT...
At 559 PM CDT, Doppler radar was tracking a strong thunderstorm 9
miles southwest of Lake Meredith, or 21 miles southwest of Borger,
moving northeast at 15 mph.
Wind gusts of 50 to 55 mph will be possible with this storm.
This storm will remain over mainly rural areas of southwestern
Lipscomb, northern Roberts, northwestern Hemphill and southeastern
Ochiltree Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take shelter in a sturdy building if threatening weather approaches.
If on or near Lake Meredith, get out of the water and move indoors
or inside a vehicle. Remember, lightning can strike out to 10 miles
from the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now! Do not
be caught on the water in a thunderstorm.
Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.
&&
LAT...LON 3572 10101 3584 10109 3591 10109 3621 10054
3598 10037
TIME...MOT...LOC 2259Z 211DEG 14KT 3554 10175
BiedaSpecial weather statement, Aug 8, 6:01 PM CDT, 2 hours 2 minutes before
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</html>Special weather statement, Aug 8, 6:23 PM CDT, 1 hour 40 minutes before
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</html>Special weather statement, Aug 8, 7:20 PM CDT, 43 minutes before
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</html>Special weather statement, Aug 8, 7:27 PM CDT, 36 minutes before
Special Weather Statement National Weather Service Amarillo TX 727 PM CDT Sat Aug 8 2020 TXZ001-002-090100- Sherman TX-Dallam TX- 727 PM CDT Sat Aug 8 2020 ...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL SHERMAN AND SOUTHEASTERN DALLAM COUNTIES UNTIL 800 PM CDT... At 726 PM CDT, Doppler radar was tracking a strong thunderstorm 4 miles southwest of Conlen, or 15 miles northeast of Dalhart. This storm was nearly stationary. Wind gusts of 50 to 55 mph will be possible with this storm. Locations impacted include... Conlen. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take shelter in a sturdy building if threatening weather approaches. Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3610 10229 3621 10243 3639 10226 3623 10205 TIME...MOT...LOC 0026Z 226DEG 3KT 3620 10229 Bieda
Special weather statement, Aug 8, 7:57 PM CDT, 6 minutes before
Special Weather Statement
National Weather Service Amarillo TX
757 PM CDT Sat Aug 8 2020
TXZ001-002-090130-
Sherman TX-Dallam TX-
757 PM CDT Sat Aug 8 2020
...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL SHERMAN AND EASTERN
DALLAM COUNTIES UNTIL 830 PM CDT...
At 757 PM CDT, Doppler radar was tracking a strong thunderstorm near
Conlen, or 11 miles west of Stratford, moving northeast at 10 mph.
Penny size hail and wind gusts of 50 to 55 mph will be possible with
this storm.
Locations impacted include...
Stratford and Conlen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take shelter in a sturdy building if threatening weather approaches.
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 3631 10191 3610 10229 3621 10243 3650 10229
3650 10227
TIME...MOT...LOC 0057Z 210DEG 10KT 3628 10227
BiedaThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 7:20 PM CDT | Special Weather Statement | AMA | Sherman | 25 min |
| Aug 8, 7:27 PM CDT | Special Weather Statement | AMA | Sherman | 33 min |
| Aug 8, 7:48 PM CDT | Areal Flood Advisory | AMA | Dallam | 3 hr |
| Aug 8, 7:57 PM CDT | Special Weather Statement | AMA | Sherman | 33 min |
| Aug 8, 8:47 PM CDT | Special Weather Statement | AMA | Hartley, Oldham | 43 min |
| Aug 8, 9:00 PM CDT | Special Weather Statement | AMA | Dallam | 30 min |
| Aug 8, 9:24 PM CDT | Special Weather Statement | AMA | Hartley, Oldham | 51 min |
| Aug 8, 9:26 PM CDT | Special Weather Statement | AMA | Sherman | 49 min |
| Aug 8, 10:09 PM CDT | Special Weather Statement | AMA | Sherman | 51 min |
| Aug 8, 11:24 PM CDT | Special Weather Statement | AMA | Hansford | 66 min |
| Aug 9, 3:53 PM CDT | Special Weather Statement | AMA | Cimarron | 37 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2020Every severe thunderstorm warning in 2020
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.