Alert archive / Texas / Special Weather Statements in 2017
Special Weather Statement, NWS San Angelo, TX
NWS San Angelo, TX issued this special weather statement at Mar 21, 2017, 6:55 PM CDT for Coke County, Texas. It was in force for 65 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
- Mar 21, 2017, 6:55 PM CDT (23:55 UTC)
- Expired
- Mar 21, 2017, 8:00 PM CDT
- In force
- 65 min
- Issued by
- NWS San Angelo, TX
County Coke County, TX
The radar
The San Angelo radar (KSJT), 75 km from the middle of the area, began a volume at 23:56 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
Midland Regional, TX (KMAF), launched 12:00Z, 11.9 hours before the alert went out and 157 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
- 58 J/kg
- Mixed-layer CIN
- -430 J/kg
- Mixed-layer LCL
- 2858 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 San Angelo, TX wrote its last area forecast discussion before this special weather statement went out at Mar 21, 6:33 PM CDT, 22 minutes earlier.
Area forecast discussion, Mar 21, 6:33 PM CDT, 22 minutes before
Area Forecast Discussion National Weather Service San Angelo TX 633 PM CDT Tue Mar 21 2017 .AVIATION... /00Z TAFS/ Isolated thunderstorms near KABI and KSJT should dissipate early this evening. Otherwise MVFR stratus returns late tonight over most terminals, lifting or scattering out by noon. KSOA will likely fall below its ceiling of 1200 AGL for early to mid morning. && .PREV DISCUSSION... /issued 356 PM CDT Tue Mar 21 2017/ SHORT TERM... (Tonight and Wednesday) A cold front will move into the Big Country late this afternoon or early this evening, while a dry line approaches our western counties. Currently temperatures are in the 80s to near 90 degrees, and forecast to top out in the upper 80s to mid 90s. Heating this afternoon may be enough to break the cap, allowing for the development of isolated showers and thunderstorms along the dryline and cold front. High resolution models continue to hint at this solution, so slight chance PoPs were continue across mainly the northern two thirds of the forecast area. Any convection that does develop should dissipate by mid to late evening. Overnight low temperatures will mainly be in the mid 50s to near 60 degrees. Another unseasonably warm day is forecast on Wednesday, with highs mainly in the 80s. Skies will be mostly cloudy in the morning, becoming partly cloudy during the afternoon hours, with southeast winds of 12 to 16 mph. LONG TERM... (Thursday through Tuesday) A potent upper level trough will move east across the central and southern Rockies on Thursday and will develop into a closed upper low over the Texas Panhandle by Friday morning. Strong south winds will develop ahead of the system on Thursday and may reach Wind Advisory criteria for roughly the western half of the forecast area into the evening hours. This system still looks promising for scattered showers and thunderstorms across the area mainly Thursday night, when forcing aloft coincides with an eastward advancing dryline/Pacific front. Will maintain chance to likely POPs Thursday night, tapering off across southeast counties Friday morning. Given strong shear and steep mid level lapse rates, a few strong to severe storms will be possible Thursday night, however, instability will be limited due to the system coming through during the overnight hours. Dry and cooler weather is expected behind the system for Friday and Saturday, with highs in the upper 70s and lower 80s. Another minor shortwave will move across the southern Rockies Saturday night and into the southern Plains on Sunday. Moisture will be limited with this system, with rain chances confined to far east/southeast counties late Sunday afternoon and evening. Monday looks dry, with the next chance for showers and thunderstorms by next Tuesday as yet another upper level trough affects the region. Lots of uncertainty with this system as the GFS remains wet, while the latest ECMWF is trending weaker and drier. && .PRELIMINARY POINT TEMPS/POPS... Abilene 56 84 60 83 / 20 5 5 5 San Angelo 59 89 60 84 / 20 5 5 5 Junction 59 84 59 82 / 10 0 5 5 Brownwood 59 84 59 82 / 20 0 5 5 Sweetwater 57 84 60 83 / 20 5 5 5 Ozona 59 85 61 80 / 10 0 5 10 && .SJT WATCHES/WARNINGS/ADVISORIES... None. && 99/99/04
Hazardous weather outlook, Mar 21, 5:25 PM CDT, 1 hour 30 minutes before
Hazardous Weather Outlook National Weather Service SAN ANGELO TX 525 PM CDT Tue Mar 21 2017 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-222230- Fisher-Nolan-Sterling-Coke-Runnels-Irion-Tom Green-Concho- Crockett-Schleicher-Sutton-Haskell-Throckmorton-Jones-Shackelford- Taylor-Callahan-Coleman-Brown-McCulloch-San Saba-Menard-Kimble- Mason- 525 PM CDT Tue Mar 21 2017 This Hazardous Weather Outlook is for portions of west central Texas. .DAY ONE...Tonight Isolated thunderstorms are possible from the Concho Valley north into the Big Country tonight as a weak cold front moves south. The main threats are strong gusty winds, dangerous lightning and small hail. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Thunderstorms are possible Thursday night into Friday across West Central Texas. A few storms may become strong to severe, with hail, gusty winds, and dangerous lightning being the main hazards. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time.
In the hours before
Special weather statement, Mar 21, 5:43 PM CDT, 1 hour 12 minutes before
Special Weather Statement National Weather Service San Angelo TX 543 PM CDT TUE MAR 21 2017 TXZ098-099-212345- Haskell TX-Throckmorton TX- 543 PM CDT TUE MAR 21 2017 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HASKELL AND SOUTHWESTERN THROCKMORTON COUNTIES UNTIL 645 PM CDT... At 543 PM CDT, Doppler radar was tracking a strong thunderstorm near Lake Stamford Marina, or 9 miles east of Stamford, moving east at 15 mph. Nickel size hail and wind gusts of 50 to 55 mph will be possible with this storm. This strong thunderstorm will be near... Lake Stamford Marina around 555 PM CDT. LAT...LON 3296 9973 3306 9976 3320 9939 3296 9934 TIME...MOT...LOC 2243Z 256DEG 13KT 3299 9965 sn
Special weather statement, Mar 21, 6:22 PM CDT, 33 minutes before
Special Weather Statement National Weather Service San Angelo TX 622 PM CDT TUE MAR 21 2017 TXZ113-114-220015- Shackelford TX-Jones TX- 622 PM CDT TUE MAR 21 2017 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN JONES AND NORTHERN SHACKELFORD COUNTIES UNTIL 715 PM CDT... At 620 PM CDT, Doppler radar was tracking a few strong thunderstorms from near Hamlin, to Stamford, into northwestern Shackelford County, moving east at 15 mph. Nickel size hail and wind gusts of 50 to 55 mph will be possible with this storm. This storm will remain over mainly rural areas of northern Jones and northern Shackelford Counties, including the following locations: Funston, Big Country Baptist Assembly, The Intersection Of US-180 And Ranch Road 126, The Intersection Of US-180 And Farm Road 600, Tuxedo and Us-180 Near The Shackelford-Stephens County Line. LAT...LON 3273 9910 3275 10014 3296 10014 3295 9910 TIME...MOT...LOC 2320Z 266DEG 11KT 3293 10006 sn
Special weather statement, Mar 21, 6:37 PM CDT, 18 minutes before
Special Weather Statement National Weather Service San Angelo TX 637 PM CDT TUE MAR 21 2017 TXZ064-065-072-220030- Tom Green TX-Coke TX-Sterling TX- 637 PM CDT TUE MAR 21 2017 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN COKE...SOUTHEASTERN STERLING AND NORTH CENTRAL TOM GREEN COUNTIES UNTIL 730 PM CDT... At 636 PM CDT, Doppler radar was tracking a strong thunderstorm near Broome, or 13 miles southeast of Sterling City, moving east at 20 mph. Nickel size hail and wind gusts up to 50 mph will be possible with this storm. This strong thunderstorm will be near... Water Valley around 650 PM CDT. Other locations impacted by this storm include The Intersection Of Highway 208 And Ranch Road 2662 and Us-87 Near The Coke- Tom Green County Line. LAT...LON 3161 10088 3179 10090 3189 10034 3162 10031 TIME...MOT...LOC 2336Z 264DEG 19KT 3172 10081 sn
Special weather statement, Mar 21, 6:55 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service San Angelo TX
655 PM CDT TUE MAR 21 2017
TXZ054-065-220100-
Nolan TX-Coke TX-
655 PM CDT TUE MAR 21 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN COKE AND
SOUTHWESTERN NOLAN COUNTIES UNTIL 800 PM CDT...
At 655 PM CDT, Doppler radar was tracking a strong thunderstorm over
Silver, or 18 miles northwest of Robert Lee, moving southeast at 15
mph.
Nickel size hail and wind gusts of 50 to 55 mph will be possible with
this storm.
This strong thunderstorm will be near...
Silver around 700 PM CDT.
Spence Reservoir Near Paint Creek Recreation Area around 740 PM
CDT.
Sanco around 745 PM CDT.
Robert Lee around 800 PM CDT.
Other locations impacted by this storm include The Intersection Of
Highway 158 And Ranch Road 2059 and Oak Creek Reservoir.
LAT...LON 3208 10034 3208 10023 3178 10048 3196 10082
3209 10081 3209 10067 3216 10066
TIME...MOT...LOC 2355Z 301DEG 13KT 3207 10072
snThe office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 21, 5:43 PM CDT | Special Weather Statement | SJT | Haskell | 62 min |
| Mar 21, 6:22 PM CDT | Special Weather Statement | SJT | Shackelford | 53 min |
| Mar 21, 6:37 PM CDT | Special Weather Statement | SJT | Coke | 53 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.