Alert archive / Texas / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 199, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Jul 3, 2017, 7:44 PM CDT for 4 counties in Texas. It was in force for 61 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
- Jul 3, 2017, 7:44 PM CDT (00:44 UTC)
- Expired
- Jul 3, 2017, 8:45 PM CDT
- In force
- 61 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Carson County, TX, Gray County, TX, Hutchinson County, TX, Roberts County, TX
The radar
The Amarillo radar (KAMA), 71 km from the middle of the area, began a volume at 00:45 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 3, 5:37 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 0.7 hours before the alert went out and 71 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
- 1626 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 2235 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
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 Jul 3, 7:03 PM CDT, 41 minutes earlier.
Area forecast discussion, Jul 3, 7:03 PM CDT, 41 minutes before
Area Forecast Discussion...UPDATED National Weather Service Amarillo TX 703 PM CDT Mon Jul 3 2017 .AVIATION... For the 00Z TAFs, latest round of showers and tstms affecting parts of the OK and TX Panhandles will continue to do so through the evening hours before dissipating. Based on latest radar data, it appears KAMA will have the greatest chc of possibly being impacted early in this forecast, and have incorporated VCTS for that terminal site until around 02Z this evening. Have omitted this weather element at KGUY and KDHT due to current radar trends and low confidence. Will monitor closely for possible amendments. Andrade && .PREV DISCUSSION... /Issued 410 PM CDT Mon Jul 3 2017/ DISCUSSION... No major changes to the forecast. Severe thunderstorms expected this evening across eastern sections where unstable airmass continues to warm. Weak northwest flow aloft expected to continue through Tuesday night . Have expanded chances for afternoon thunderstorms to include western sections on Tuesday where axis of higher instability expected to set up. Thunderstorms expected to continue into Tuesday evening. Flow aloft expected to become north and northeast Wednesday through Thursday, limiting potential for thunderstorms to move in from the higher terrain. Have introduced slight chance of thunderstorms Wednesday afternoon across southern sections where slightly higher instability and upslope flow expected to be positioned. Weak northwest flow aloft expected to resume Friday, with low thunderstorm pops included for Friday night through Saturday night. Cockrell && .AMA Watches/Warnings/Advisories... TX...None. OK...None. &&
Hazardous weather outlook, Jul 3, 5:20 PM CDT, 2 hours 24 minutes before
Hazardous Weather Outlook National Weather Service Amarillo TX 520 PM CDT Mon Jul 3 2017 OKZ001>003-TXZ001>020-041115- Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb- Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson- Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth- 520 PM CDT Mon Jul 3 2017 This Hazardous Weather Outlook is for the Texas and Oklahoma Panhandles. .DAY ONE...Through Tonight. Isolated to scattered thunderstorms are expected this evening across the Texas and Oklahoma Panhandles. Some storms are expected to become strong to severe with hail up to 2 inches in diameter and damaging winds up to 70 MPH will be possible. Locally heavy rains will likely occur, possibly leading to localized flooding. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Thunderstorms will be possible for various portions of the Panhandles Tuesday through Wednesday, and then again Friday night through Saturday night. Some storms Tuesday could become strong to marginally severe, producing one inch hail and 60 MPH gusts. Otherwise, the threat for organized severe weather will be low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. Cockrell
In the hours before
Local storm report, Jul 3, 7:16 PM CDT, 28 minutes before
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</html>Local storm report, Jul 3, 7:19 PM CDT, 25 minutes before
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</html>Local storm report, Jul 3, 7:23 PM CDT, 21 minutes before
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</html>Local storm report, Jul 3, 7:27 PM CDT, 17 minutes before
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</html>Local storm report, Jul 3, 7:32 PM CDT, 12 minutes before
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</html>Special weather statement, Jul 3, 7:38 PM CDT, 6 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 |
|---|---|---|---|---|
| Jul 3, 7:04 PM CDT | Severe Thunderstorm Warning | AMA | Armstrong, Carson, Potter, Randall | 31 min |
| Jul 3, 7:11 PM CDT | Special Weather Statement | AMA | Ochiltree | 64 min |
| Jul 3, 7:30 PM CDT | Severe Thunderstorm Warning | AMA | Gray, Hemphill, Roberts, Wheeler | 75 min |
| Jul 3, 7:38 PM CDT | Special Weather Statement | AMA | Carson | 37 min |
| Jul 3, 8:24 PM CDT | Special Weather Statement | AMA | Gray, Wheeler | 66 min |
| Jul 3, 8:47 PM CDT | Special Weather Statement | AMA | Collingsworth, Donley, Gray, Wheeler | 58 min |
| Jul 3, 9:51 PM CDT | Special Weather Statement | AMA | Collingsworth | 24 min |
| Jul 4, 4:22 PM CDT | Special Weather Statement | AMA | Hartley | 38 min |
| Jul 4, 5:39 PM CDT | Special Weather Statement | AMA | Roberts | 51 min |
| Jul 4, 5:56 PM CDT | Special Weather Statement | AMA | Deaf Smith | 49 min |
| Jul 4, 6:22 PM CDT | Severe Thunderstorm Warning | AMA | Deaf Smith, Oldham | 53 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.