Alert archive / Texas / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 223, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Aug 10, 2017, 4:34 PM CDT for Hartley County, Oldham County, Texas. It was in force for 56 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 10, 2017, 4:34 PM CDT (21:34 UTC)
- Expired
- Aug 10, 2017, 5:30 PM CDT
- In force
- 56 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Hartley County, TX, Oldham County, TX
The radar
The Amarillo radar (KAMA), 92 km from the middle of the area, began a volume at 21:34 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 12:00Z, 9.6 hours before the alert went out and 339 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
- 520 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 1117 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
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 10, 3:56 PM CDT, 38 minutes earlier.
Area forecast discussion, Aug 10, 3:56 PM CDT, 38 minutes before
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</html>Hazardous weather outlook, Aug 10, 4:04 PM CDT, 30 minutes before
Hazardous Weather Outlook National Weather Service Amarillo TX 404 PM CDT Thu Aug 10 2017 OKZ001>003-TXZ001>020-110915- Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb- Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson- Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth- 404 PM CDT Thu Aug 10 2017 This Hazardous Weather Outlook is for the Texas and Oklahoma Panhandles. .DAY ONE...Tonight. Thunderstorms will be possible across the panhandles. Some storms may become severe mainly across the Oklahoma Panhandle and the northern Texas Panhandle, with damaging winds and hail the primary hazards. Another concern will be heavy rainfall, which may lead to localized flooding or flash flooding. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Thunderstorms will be possible across the Oklahoma and Texas Panhandles every day through mid next week. Some storms that develop during this time period may become strong to marginally severe, with strong wind gusts and hail the primary hazards. In addition, the strongest storms will be capable of producing heavy rainfall, which may lead to localized flooding or flash flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed through tonight.
In the hours before
Special weather statement, Aug 10, 12:40 PM CDT, 3 hours 54 minutes before
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</html>The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 1:50 AM CDT | Special Weather Statement | AMA | Dallam, Hartley | 40 min |
| Aug 10, 2:36 AM CDT | Special Weather Statement | AMA | Hartley | 39 min |
| Aug 10, 4:54 AM CDT | Areal Flood Advisory | AMA | Potter, Randall | 3 hr |
| Aug 10, 6:32 AM CDT | Flash Flood Warning | AMA | Potter, Randall | 3 hr |
| Aug 10, 7:53 AM CDT | Areal Flood Advisory | AMA | Oldham, Potter | 3 hr |
| Aug 10, 8:07 AM CDT | Flash Flood Warning | AMA | Armstrong | 3 hr |
| Aug 10, 4:08 PM CDT | Special Weather Statement | AMA | Oldham | 67 min |
| Aug 10, 5:16 PM CDT | Special Weather Statement | AMA | Hutchinson | 59 min |
| Aug 10, 5:32 PM CDT | Special Weather Statement | AMA | Oldham | 58 min |
| Aug 10, 5:35 PM CDT | Areal Flood Advisory | AMA | Hartley, Oldham | 3 hr |
| Aug 10, 5:46 PM CDT | Special Weather Statement | AMA | Moore | 59 min |
| Aug 10, 6:53 PM CDT | Special Weather Statement | AMA | Oldham | 67 min |
| Aug 9, 7:12 PM CDT | Special Weather Statement | AMA | Cimarron | 63 min |
| Aug 10, 12:14 PM CDT | Severe Thunderstorm Warning | AMA | Beaver, Texas | 22 min |
| Aug 10, 12:40 PM CDT | Special Weather Statement | AMA | Beaver | 35 min |
| Aug 10, 12:59 PM CDT | Severe Thunderstorm Warning | AMA | Beaver | 61 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.