Alert archive / Texas / Areal Flood Advisories in 2021
Areal Flood Advisory 170, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this areal flood advisory at Jul 5, 2021, 7:01 PM CDT for Bandera County, Kerr County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 5, 2021, 7:01 PM CDT (00:01 UTC)
- Expired
- Jul 5, 2021, 10:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
Counties Bandera County, TX, Kerr County, TX
The radar
The Laughlin AFB radar (KDFX), 118 km from the middle of the area, began a volume at 00:01 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
Del Rio, TX (KDRT), launched 00:00Z, 0.0 hours before the alert went out and 160 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
- 322 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -92 m²/s²
- 0-3 km storm-relative helicity
- -68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood advisory 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 areal flood advisory went out at Jul 5, 6:30 PM CDT, 31 minutes earlier.
Area forecast discussion, Jul 5, 6:30 PM CDT, 31 minutes before
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</html>Hazardous weather outlook, Jul 5, 4:23 AM CDT, 14 hours 38 minutes before
Hazardous Weather Outlook National Weather Service Austin/San Antonio TX 423 AM CDT Mon Jul 5 2021 TXZ171>173-183>194-202>209-217>225-228-060930- 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- 423 AM CDT Mon Jul 5 2021 This Hazardous Weather Outlook is for South-Central Texas.. .DAY ONE...Today And Tonight. Scattered to numerous showers and scattered thunderstorms are expected mainly during the afternoon and early evening. Cloud to ground lightning will be possible in and near any storms. In addition, a few storms could produce localized flooding and strong gusty winds. No other hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Scattered showers and thunderstorms are forecast Tuesday through Sunday, especially in the afternoon and evening hours. Cloud to ground lightning will be possible in and near any storms. In addition, a few storms could produce localized flooding as well as strong gusty winds. No other hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
In the hours before
Special weather statement, Jul 5, 1:57 PM CDT, 5 hours 4 minutes before
Special Weather Statement National Weather Service Austin/San Antonio TX 157 PM CDT Mon Jul 5 2021 TXZ184-185-202-203-052000- Uvalde TX-Kinney TX-Edwards TX-Real TX- 157 PM CDT Mon Jul 5 2021 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN KINNEY... NORTHWESTERN UVALDE...SOUTH CENTRAL EDWARDS AND SOUTHWESTERN REAL COUNTIES UNTIL 300 PM CDT... At 157 PM CDT, Doppler radar was tracking a strong thunderstorm 7 miles southwest of Barksdale, or 23 miles west of Leakey, moving south at 20 mph. Half inch hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Camp Wood, Laguna, Montell, Vance, Barksdale and Turkey Mountain. 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. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 2985 10027 2983 10001 2935 9996 2935 10040 TIME...MOT...LOC 1857Z 357DEG 16KT 2967 10015 AAT
Special weather statement, Jul 5, 2:13 PM CDT, 4 hours 48 minutes before
Special Weather Statement National Weather Service Austin/San Antonio TX 213 PM CDT Mon Jul 5 2021 TXZ183-184-052000- Val Verde TX-Edwards TX- 213 PM CDT Mon Jul 5 2021 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN EDWARDS AND NORTHEASTERN VAL VERDE COUNTIES UNTIL 300 PM CDT... At 213 PM CDT, Doppler radar was tracking a strong thunderstorm 12 miles north of Loma Alta, moving south at 15 mph. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... Loma Alta, Carta Valley, Vinegarone, Devils River State Nat Area Del Norte and Us-277 Near The Sutton-Edwards County Line. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3029 10110 3029 10058 2979 10052 2980 10110 TIME...MOT...LOC 1913Z 007DEG 13KT 3010 10080 KCW
Special weather statement, Jul 5, 4:52 PM CDT, 2 hours 9 minutes before
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</html>The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 4:43 AM CDT | Areal Flood Advisory | EWX | Blanco, Comal, Kendall | 3 hr |
| Jul 6, 6:06 AM CDT | Areal Flood Advisory | EWX | Bexar, Medina | 3 hr |
| Jul 6, 6:39 AM CDT | Flash Flood Warning | EWX | Bexar | 5 hr |
| Jul 6, 6:47 AM CDT | Areal Flood Advisory | EWX | Atascosa | 3 hr |
| Jul 6, 10:15 AM CDT | River Flood Warning | EWX | Bexar | 22 hr |
| Jul 6, 10:34 AM CDT | Areal Flood Advisory | EWX | Gillespie | 3 hr |
| Jul 6, 2:47 PM CDT | River Flood Warning | EWX | Bexar | 20 hr |
| Jul 6, 4:56 PM CDT | River Flood Warning | EWX | Karnes, Wilson | 62 hr |
| Jul 6, 4:57 PM CDT | River Flood Warning | EWX | Bexar, Wilson | 42 hr |
Nearby
Areal Flood Advisories in Texas, 2021Every areal flood advisory in 2021
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.