Alert archive / Texas / Special Weather Statements in 2018
Special Weather Statement, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this special weather statement at Sep 8, 2018, 5:13 PM CDT for Caldwell County, Texas. It was in force for 32 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
- Sep 8, 2018, 5:13 PM CDT (22:13 UTC)
- Expired
- Sep 8, 2018, 5:45 PM CDT
- In force
- 32 min
- Issued by
- NWS Austin/San Antonio, TX
County Caldwell County, TX
The radar
The Austin/San Antonio radar (KEWX), 33 km from the middle of the area, began a volume at 22:17 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
Fort Worth, TX (KFWD), launched 12:00Z, 10.2 hours before the alert went out and 332 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
- 1003 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 546 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 27 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 Austin/San Antonio, TX wrote its last area forecast discussion before this special weather statement went out at Sep 8, 2:51 PM CDT, 2 hours 22 minutes earlier.
Area forecast discussion, Sep 8, 2:51 PM CDT, 2 hours 22 minutes before
Area Forecast Discussion National Weather Service Austin/San Antonio TX 251 PM CDT Sat Sep 8 2018 .SHORT TERM (Tonight through Sunday Night)... Showers and thunderstorms have waned across the western half of the CWA, but increased in the eastern half of the CWA this afternoon. With the proximity of an upper-level trough, very moist Gulf air (PWS AOA 2 inches), and the stalling WSW to ENE frontal boundary across the area will continue to produce rounds of storms over the next 24 hours. Global and mesoscale models are in good agreement in focusing the main activity along U.S. 90, including metro San Antonio. That said, everyone should see some rain by noon Sunday, with many places receiving 1-3 inches, and a few spots getting up to seven inches. This should result in a lot of minor flooding, with some moderate level river flooding. Therefore, a flash flood watch has been extended in time (until Sunday at 1 pm) and in areas (now covering all of South Central Texas). We will likely trim back the watch on Sunday morning as areas clear from the heaviest rain. && .LONG TERM (Monday through Saturday)... The upper level trough begins to drift east on Monday, so rain chances will drop through mid-week. However, a large scale surge in moist air and troughing (also likely to affect Florence along the U.S. East Coast), will bring back higher rain chances Thursday and Friday. The rain and cloudcover will keep high temperatures at or slightly below normal all week (around 90 F), while lows stay near normal in the upper 60s to lower 70s. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 72 82 70 86 70 / 80 80 40 20 30 Austin Bergstrom Intl Airport 72 82 70 86 70 / 80 90 50 30 30 New Braunfels Muni Airport 72 82 70 86 70 / 80 90 50 40 30 Burnet Muni Airport 70 81 68 84 68 / 70 60 20 10 20 Del Rio Intl Airport 71 82 69 87 69 / 60 50 20 10 - Georgetown Muni Airport 71 83 68 85 69 / 70 60 30 20 20 Hondo Muni Airport 72 81 69 85 69 / 70 80 40 20 20 San Marcos Muni Airport 72 82 70 85 70 / 80 90 50 40 30 La Grange - Fayette Regional 73 84 72 86 71 / 60 70 50 60 40 San Antonio Intl Airport 73 81 69 85 71 / 80 90 50 30 30 Stinson Muni Airport 74 82 71 85 72 / 80 80 50 40 30 && .EWX WATCHES/WARNINGS/ADVISORIES... Flash Flood Watch through Sunday afternoon for Atascosa-Bandera- Bastrop-Bexar-Blanco-Burnet-Caldwell-Comal-De Witt-Dimmit-Edwards- Fayette-Frio-Gillespie-Gonzales-Guadalupe-Hays-Karnes-Kendall-Kerr- Kinney-Lavaca-Lee-Llano-Maverick-Medina-Real-Travis-Uvalde-Val Verde-Williamson-Wilson-Zavala. && Mesoscale/Aviation...Huffman Synoptic/Grids...26 Public Service/Data Collection...YB
Hazardous weather outlook, Sep 8, 3:26 PM CDT, 1 hour 47 minutes before
Hazardous Weather Outlook National Weather Service Austin/San Antonio TX 326 PM CDT Sat Sep 8 2018 TXZ171>173-183>194-202>209-217>225-228-092030- Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde- Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Maverick-Zavala- Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca-Dimmit- 326 PM CDT Sat Sep 8 2018 This Hazardous Weather Outlook is for South-Central Texas.. .DAY ONE...This Afternoon And Tonight. Scattered to numerous showers and thunderstorms are expected across South Central Texas today and tonight. The main concern will be heavy rainfall and possible flooding. A Flash Flood Watch is in effect for all of South Central Texas. Areas that have recently seen heavy rainfall will be at greater risk for flash flooding. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Scattered to numerous showers and thunderstorms will continue across South Central Texas through Sunday. Isolated areas of heavy rainfall could lead to flooding mainly across areas that have had significant rains recently. A Flash Flood Watch will be in effect for all of South Central Texas, with heavy rain threat shifting from northwest to southeast mid- morning Sunday. Showers and thunderstorms will gradually become less numerous Monday through Wednesday. Locally heavy rains may cause some minor flooding. .SPOTTER INFORMATION STATEMENT... While spotter activation is not anticipated, any reports of heavy rainfall or flooding are appreciated.
In the hours before
Local storm report, Sep 8, 4:05 PM CDT, 1 hour 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
405 PM CDT SAT SEP 8 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1220 PM FLASH FLOOD 4 NW UVALDE 29.25N 99.83W
09/08/2018 UVALDE TX LAW ENFORCEMENT
UVALDE COUNTY LAW ENFORCEMENT REPORTING
MULTIPLE ROAD CLOSURES DUE TO FLOODING
INCLUDING HWY 55.
&&
YMBSpecial weather statement, Sep 8, 5:13 PM CDT, 0 minutes before
Special Weather Statement National Weather Service Austin/San Antonio TX 513 PM CDT SAT SEP 8 2018 TXZ191>193-207-208-082245- Guadalupe TX-Caldwell TX-Bastrop TX-Hays TX-Travis TX- 513 PM CDT SAT SEP 8 2018 ...SIGNIFICANT WEATHER ADVISORY FOR WESTERN CALDWELL...SOUTHEASTERN HAYS...NORTHEASTERN GUADALUPE...SOUTH CENTRAL TRAVIS AND WESTERN BASTROP COUNTIES UNTIL 545 PM CDT... At 512 PM CDT, Doppler radar was tracking a strong thunderstorm near Lockhart, moving north at 15 mph. Winds in excess of 40 mph, very heavy rainfall, and pea sized hail will be possible with this storm. Locations impacted include... San Marcos, Kyle, Buda, Lockhart, Martindale, Uhland, Mustang Ridge, Niederwald, Staples, Fentress, Zorn, Onion Creek, Creedmoor, San Marcos Regional Airport, Maha, Maxwell, Reedville, Redwood, Lytton Springs and Mendoza. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 2972 9775 2974 9797 3012 9779 3007 9751 TIME...MOT...LOC 2212Z 192DEG 14KT 2991 9771 MO
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 11:59 PM CDT | Areal Flood Advisory | EWX | Bexar, Medina | 3 hr |
| Sep 8, 12:12 AM CDT | Areal Flood Advisory | EWX | Burnet, Travis, Williamson | 3 hr |
| Sep 8, 3:35 AM CDT | Areal Flood Advisory | EWX | Val Verde | 3 hr |
| Sep 8, 4:09 AM CDT | Flash Flood Watch | EWX | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more | 59 hr |
| Sep 8, 5:00 AM CDT | Areal Flood Advisory | EWX | Bandera, Edwards, Real, Uvalde | 3 hr |
| Sep 8, 5:56 AM CDT | Areal Flood Advisory | EWX | Edwards, Kinney, Maverick | 3 hr |
| Sep 8, 6:41 AM CDT | Flash Flood Warning | EWX | Bandera, Edwards, Real, Uvalde | 3 hr |
| Sep 8, 8:35 AM CDT | River Flood Warning | EWX | Uvalde | 22 hr |
| Sep 8, 8:35 AM CDT | River Flood Warning | EWX | Uvalde | 18 hr |
| Sep 8, 8:35 AM CDT | River Flood Warning | EWX | Uvalde | 24 hr |
| Sep 8, 8:40 AM CDT | Areal Flood Advisory | EWX | Kinney, Maverick, Uvalde, Zavala | 3 hr |
| Sep 8, 8:56 AM CDT | River Flood Warning | EWX | Val Verde | 25 hr |
| Sep 8, 9:28 AM CDT | Flash Flood Warning | EWX | Bandera, Dimmit, Kinney, Maverick, Real, Uvalde and 1 more | 3 hr |
| Sep 8, 10:55 AM CDT | Areal Flood Advisory | EWX | Dimmit, Maverick | 3 hr |
| Sep 8, 12:06 PM CDT | Areal Flood Advisory | EWX | Dimmit | 114 min |
| Sep 8, 12:29 PM CDT | Areal Flood Warning | EWX | Bandera, Dimmit, Kinney, Maverick, Real, Uvalde and 1 more | 3 hr |
| Sep 8, 3:09 PM CDT | River Flood Warning | EWX | Uvalde | 40 hr |
Nearby
Special Weather Statements in Texas, 2018Every special weather statement in 2018
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.