Alert archive / Texas / Special Weather Statements in 2017
Special Weather Statement, NWS Amarillo, TX
NWS Amarillo, TX issued this special weather statement at Jun 30, 2017, 8:45 PM CDT for Hartley County, Texas. It was in force for 60 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
- Jun 30, 2017, 8:45 PM CDT (01:45 UTC)
- Expired
- Jun 30, 2017, 9:45 PM CDT
- In force
- 60 min
- Issued by
- NWS Amarillo, TX
County Hartley County, TX
The radar
The Amarillo radar (KAMA), 86 km from the middle of the area, began a volume at 01:47 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, 1.8 hours before the alert went out and 87 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
- 1235 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 1830 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -40 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jun 30, 5:52 PM CDT, 2 hours 53 minutes earlier.
Area forecast discussion, Jun 30, 5:52 PM CDT, 2 hours 53 minutes before
Area Forecast Discussion National Weather Service Amarillo TX 552 PM CDT Fri Jun 30 2017 .AVIATION... 00Z TAF Cycle VFR conditions are expected at all three TAF sites through 05Z to 08Z Saturday except in and near showers and thunderstorms where MVFR visibilities and ceilings are possible along with strong and erratic winds from thunderstorms. After 05Z to 08Z Saturday, MVFR to possibly IFR conditions are expected as low cloudiness increases at the Dalhart and Amarillo TAF sites. The Guymon TAF site should see VFR conditions through 00Z Sunday. The Dalhart and Amarillo TAF sites should see VFR conditions return after 19Z to 21Z Saturday. Northeast to east winds 10 to 20 knots with some gusts near 25 knots will diminish to around 5 to 15 knots at all three TAF sites after 08Z to 10Z Saturday and will become east to southeast after 19Z to 21Z Saturday. Schneider && .PREV DISCUSSION... /Issued 426 PM CDT Fri Jun 30 2017/ DISCUSSION... Not many changes have been made to the forecast, other than to attempt to refine timing of thunderstorm chances through Sunday. For tonight, moist easterly upslope flow in a moderately unstable atmosphere will promote the potential for thunderstorm development, mainly across western and southern sections this evening, closer to the frontal boundary where instability will be higher. Saturday should be mostly dry, with a slight chance of showers and thunderstorms across southern sections. Thunderstorm chances increase Saturday evening and Saturday night, as a shortwave trof assists in thunderstorm development in northeast New Mexico, with a good opportunity for thunderstorms to spread east and southeast across the Texas and Oklahoma Panhandles. Severe thunderstorms with hail around one inch in diameter and gusts to around 60 MPH could occur. Brief heavy rains will also be possible. Thunderstorms will be possible Sunday afternoon and Sunday evening across all sections, with eastern sections being favored, owing to expected orientation of instability. Mainly nocturnal thunderstorms expected Monday night through Wednesday night, primarily across eastern sections, which should be the most removed from strengthening mid-level ridge. Cockrell && .AMA Watches/Warnings/Advisories... TX...None. OK...None. && 11
Hazardous weather outlook, Jun 30, 3:49 PM CDT, 4 hours 56 minutes before
Hazardous Weather Outlook National Weather Service Amarillo TX 349 PM CDT Fri Jun 30 2017 OKZ001>003-TXZ001>020-011100- Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb- Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson- Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth- 349 PM CDT Fri Jun 30 2017 This Hazardous Weather Outlook is for the Texas and Oklahoma Panhandles. .DAY ONE...Through Tonight. Thunderstorms will be possible across most sections of the Panhandles. Some storms may become strong to severe this evening with winds up to 60 MPH and hail around one inch in diameter being the main threats. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Thunderstorms will be possible for different portions of the Panhandles Saturday through Wednesday night, with the best opportunity for rain Saturday night. Some of the storms that develop Saturday night may become strong to possibly severe with winds up to 60 MPH and hail around one inch in diameter being the main hazards. Locally heavy rain may also occur Saturday night. The threat for organized severe weather will be low Sunday through Wednesday night. .SPOTTER INFORMATION STATEMENT... Emergency Managers and spotter groups across the Oklahoma and northeast Texas Panhandles should remain alert for possible activation this evening and again Saturday evening. Cockrell
In the hours before
Special weather statement, Jun 30, 8:31 PM CDT, 14 minutes before
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</html>Special weather statement, Jun 30, 8:45 PM CDT, 0 minutes before
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The site you requested is temporarily down for maintenance or an unexpected outage.
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Please try again in a few minutes.
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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 |
|---|---|---|---|---|
| Jun 30, 7:25 PM CDT | Severe Thunderstorm Warning | AMA | Dallam, Hartley | 65 min |
| Jun 30, 8:28 PM CDT | Severe Thunderstorm Warning | AMA | Hartley, Oldham | 15 min |
| Jun 30, 8:31 PM CDT | Special Weather Statement | AMA | Hartley | 59 min |
| Jun 30, 9:27 PM CDT | Special Weather Statement | AMA | Donley | 63 min |
| Jun 30, 10:12 PM CDT | Severe Thunderstorm Warning | AMA | Donley | 32 min |
| Jun 30, 10:22 PM CDT | Special Weather Statement | AMA | Armstrong | 68 min |
| Jun 30, 10:27 PM CDT | Areal Flood Advisory | AMA | Donley | 3 hr |
| Jun 30, 10:45 PM CDT | Special Weather Statement | AMA | Donley | 60 min |
Nearby
Special Weather Statements in Texas, 2017Every special weather statement 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.