Alert archive / Texas / Areal Flood Advisories in 2021
Areal Flood Advisory 95, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this areal flood advisory at Jun 1, 2021, 1:36 AM CDT for Bexar County, Medina County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 1, 2021, 1:36 AM CDT (06:36 UTC)
- Expired
- Jun 1, 2021, 4:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
Counties Bexar County, TX, Medina County, TX
The radar
The Austin/San Antonio radar (KEWX), 83 km from the middle of the area, began a volume at 06:40 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, 6.6 hours before the alert went out and 196 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
- 2624 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 922 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 176 m²/s²
- Significant tornado parameter
- 2.8
- Supercell composite
- 11.0
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 Jun 1, 1:03 AM CDT, 33 minutes earlier.
Area forecast discussion, Jun 1, 1:03 AM CDT, 33 minutes before
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</html>Hazardous weather outlook, May 31, 4:24 AM CDT, 21 hours 12 minutes before
Hazardous Weather Outlook National Weather Service Austin/San Antonio TX 424 AM CDT Mon May 31 2021 TXZ171>173-183>194-202>209-217>225-228-010930- 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- 424 AM CDT Mon May 31 2021 This Hazardous Weather Outlook is for South-Central Texas.. .DAY ONE...Today And Tonight. A line of severe thunderstorms is forecast to push across the Rio Grande, Edwards Plateau and into the Interstate 35 corridor this evening into the overnight period. There is the potential for large to very large hail and damaging winds. A tornado or two can't be ruled out especially across the western portion of Val Verde County. Localized flash flooding is also a concern due to previous rain events over the past two weeks or so. The Weather Prediction Center highlights the risk of excessive rainfall along the Rio Grande Plains with rainfall amounts of 1 to 2 inches and isolated 3 inches mainly for the tonight into Tuesday morning period. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Several more rounds of showers and thunderstorms are expected through the week, primarily favoring the afternoon and into the evening/nighttime hours. Some of these storms may be strong to severe with main weather hazards being large hail and damaging winds. A tornado or two can't be ruled out. Localized flash flooding is also a concern due to previous rain events over the past two weeks or so. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report any severe weather or flooding to the National Weather Service.
In the hours before
Special weather statement, May 31, 9:14 PM CDT, 4 hours 22 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
914 PM CDT Mon May 31 2021
TXZ183-010300-
Val Verde TX-
914 PM CDT Mon May 31 2021
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN VAL VERDE COUNTY
UNTIL 1000 PM CDT...
At 913 PM CDT, Doppler radar was tracking a strong thunderstorm over
Pandale, or 25 miles north of Langtry, moving northeast at 20 mph.
Penny size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Pandale.
A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
south central Texas.
LAT...LON 3029 10157 3029 10132 3019 10123 3008 10161
3019 10167
TIME...MOT...LOC 0213Z 233DEG 16KT 3017 10159
BRADYSpecial weather statement, May 31, 10:38 PM CDT, 2 hours 58 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
1038 PM CDT Mon May 31 2021
TXZ183-202-217-010430-
Maverick TX-Kinney TX-Val Verde TX-
1038 PM CDT Mon May 31 2021
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN KINNEY...
NORTHWESTERN MAVERICK AND SOUTHEASTERN VAL VERDE COUNTIES UNTIL 1130
PM CDT...
At 1038 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Laughlin AFB to 14 miles southwest of
Standart. Movement was southeast at 20 mph.
Half inch hail and wind gusts up to 50 mph will be possible with
these storms.
Locations impacted include...
Del Rio, Val Verde Park, Standart, Cienegas Terrace, Amanda, Laughlin
AFB, Escondido Estates and Laughlin AFB Aux Field.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
south central Texas.
LAT...LON 2941 10095 2947 10049 2892 10044 2902 10066
2910 10067 2917 10078 2920 10077 2923 10080
2924 10079 2926 10081 2928 10087 2931 10089
2934 10094
TIME...MOT...LOC 0338Z 297DEG 16KT 2929 10077 2916 10074
BRADYSpecial weather statement, May 31, 11:32 PM CDT, 2 hours 4 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
1132 PM CDT Mon May 31 2021
TXZ186-188-010515-
Gillespie TX-Kerr TX-
1132 PM CDT Mon May 31 2021
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN KERR AND
SOUTHWESTERN GILLESPIE COUNTIES UNTIL 1215 AM CDT...
At 1132 PM CDT, Doppler radar was tracking a strong thunderstorm 9
miles west of Harper, or 24 miles southeast of Junction, moving east
at 35 mph.
Half inch hail and wind gusts of 50 to 55 mph will be possible with
this storm.
Locations impacted include...
Fredericksburg, Tivydale, Harper, I-10 Near The Kimble-Kerr County
Line and The Intersection Of I-10 And Us 290.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 3038 9886 3007 9894 3029 9955 3029 9930
3043 9930
TIME...MOT...LOC 0432Z 283DEG 28KT 3033 9940
BRADYSpecial weather statement, May 31, 11:51 PM CDT, 1 hour 45 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
1151 PM CDT Mon May 31 2021
TXZ217-010515-
Maverick TX-
1151 PM CDT Mon May 31 2021
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MAVERICK COUNTY UNTIL
1215 AM CDT...
At 1151 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles south of Paloma to 9 miles southwest of
Eagle Pass. Movement was east at 35 mph.
Half inch hail and wind gusts of 50 to 55 mph will be possible with
these storms.
Locations impacted include...
Eagle Pass, El Indio, Chula Vista, Rosita, Radar Base, Siesta Acres,
Eidson Road, Fabrica, Elm Creek, Las Quintas Fronterizas and Seco
Mines.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
south central Texas.
LAT...LON 2838 10033 2840 10035 2845 10034 2848 10037
2850 10033 2852 10039 2855 10041 2858 10040
2861 10045 2864 10045 2866 10050 2874 10051
2876 10053 2880 10053 2883 10055 2883 10058
2885 10057 2888 10060 2871 10011 2869 10011
TIME...MOT...LOC 0451Z 286DEG 31KT 2879 10043 2861 10058
BRADYLocal storm report, Jun 1, 12:11 AM CDT, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1211 AM CDT TUE JUN 1 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1206 AM HAIL 1 N EAGLE PASS 28.72N 100.50W
06/01/2021 E0.75 INCH MAVERICK TX TRAINED SPOTTER
&&
HAMPSHIRELocal storm report, Jun 1, 1:23 AM CDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
123 AM CDT TUE JUN 1 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0120 AM FLASH FLOOD 1 SE EAGLE PASS 28.70N 100.49W
06/01/2021 MAVERICK TX TRAINED SPOTTER
PHOTO ON SOCIAL MEDIA SHOWS WATER COMPLETELY
OVER EL INDIO HIGHWAY WITH WATER OVER THE
BUMPER OF SEVERAL VEHICLES.
&&
HAMPSHIREThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 8:31 PM CDT | Special Weather Statement | EWX | Val Verde | 44 min |
| May 31, 8:35 PM CDT | Special Weather Statement | EWX | Val Verde | 40 min |
| May 31, 9:14 PM CDT | Special Weather Statement | EWX | Val Verde | 46 min |
| May 31, 9:23 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 43 min |
| May 31, 9:48 PM CDT | Flash Flood Warning | EWX | Val Verde | 2 hr |
| May 31, 10:22 PM CDT | Areal Flood Advisory | EWX | Williamson | 3 hr |
| May 31, 10:38 PM CDT | Special Weather Statement | EWX | Kinney | 52 min |
| May 31, 11:00 PM CDT | Areal Flood Advisory | EWX | Kinney, Maverick | 26 min |
| May 31, 11:15 PM CDT | Severe Thunderstorm Warning | EWX | Kinney, Maverick | 60 min |
| May 31, 11:26 PM CDT | Flash Flood Warning | EWX | Kinney, Maverick | 3 hr |
| May 31, 11:32 PM CDT | Special Weather Statement | EWX | Gillespie | 43 min |
| May 31, 11:47 PM CDT | Flash Flood Warning | EWX | Maverick | 3 hr |
| May 31, 11:51 PM CDT | Special Weather Statement | EWX | Maverick | 24 min |
| Jun 1, 12:08 AM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Maverick, Zavala | 67 min |
| Jun 1, 12:14 AM CDT | Areal Flood Advisory | EWX | Gillespie | 3 hr |
| Jun 1, 12:44 AM CDT | Flash Flood Warning | EWX | Dimmit, Maverick, Zavala | 3 hr |
| Jun 1, 12:54 AM CDT | Areal Flood Advisory | EWX | Blanco, Burnet, Llano | 3 hr |
| Jun 1, 12:55 AM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Frio, Maverick, Zavala | 65 min |
| Jun 1, 1:19 AM CDT | Areal Flood Advisory | EWX | Travis, Williamson | 3 hr |
| Jun 1, 1:57 AM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Frio, Zavala | 63 min |
| Jun 1, 2:08 AM CDT | Areal Flood Advisory | EWX | Dimmit, Zavala | 4 hr |
| Jun 1, 2:34 AM CDT | Areal Flood Advisory | EWX | Bastrop, Caldwell, Lee | 3 hr |
| Jun 1, 2:56 AM CDT | Areal Flood Advisory | EWX | Atascosa, Bexar, Frio, Medina | 3 hr |
| Jun 1, 2:56 AM CDT | Special Weather Statement | EWX | Frio | 49 min |
| Jun 1, 3:13 AM CDT | Areal Flood Advisory | EWX | Gonzales | 3 hr |
| Jun 1, 3:34 AM CDT | Areal Flood Advisory | EWX | Atascosa | 2 hr |
| Jun 1, 3:40 AM CDT | Areal Flood Advisory | EWX | Dimmit, Maverick, Zavala | 2 hr |
| Jun 1, 3:57 AM CDT | Areal Flood Advisory | EWX | Karnes, Wilson | 2 hr |
| Jun 1, 4:34 AM CDT | Areal Flood Advisory | EWX | DeWitt, Karnes | 3 hr |
| Jun 1, 5:07 AM CDT | Flash Flood Warning | EWX | DeWitt, Gonzales, Karnes | 3 hr |
| Jun 1, 6:02 AM CDT | Special Weather Statement | EWX | Bexar, Comal, Guadalupe | 58 min |
| Jun 1, 7:39 AM CDT | River Flood Warning | EWX | Williamson | 6 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.