Alert archive / Texas / Flash Flood Warnings in 2021
Flash Flood Warning 42, NWS San Angelo, TX
NWS San Angelo, TX issued this flash flood warning at Sep 6, 2021, 6:54 PM CDT for San Saba County, Texas. It was in force for 111 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 6, 2021, 6:54 PM CDT (23:54 UTC)
- Expired
- Sep 6, 2021, 8:45 PM CDT
- In force
- 111 min
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
County San Saba County, TX
The radar
The Ft Hood radar (KGRK), 135 km from the middle of the area, began a volume at 23:53 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, 11.9 hours before the alert went out and 221 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
- 1241 J/kg
- Mixed-layer CIN
- -99 J/kg
- Mixed-layer LCL
- 974 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
336
WGUS54 KSJT 062354
FFWSJT
TXC411-070145-
/O.NEW.KSJT.FF.W.0042.210906T2354Z-210907T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Angelo TX
654 PM CDT Mon Sep 6 2021
The National Weather Service in San Angelo has issued a
* Flash Flood Warning for...
San Saba County in west central Texas...
* Until 845 PM CDT.
* At 651 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen just south of San Saba. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
San Saba, Richland Springs, Algerita, Cherokee, Sloan, Chappel,
Skeeterville, Harkeyville, Spring Creek, Locker and Us-190 Near
The San Saba-Lampasas County Line.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3092 9872 3109 9889 3148 9903 3144 9897
3146 9894 3141 9878 3138 9878 3143 9873
3134 9870 3137 9865 3131 9865 3133 9859
3127 9863 3117 9850 3113 9855 3109 9853
3111 9846 3106 9848 3103 9844 3093 9842
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
21The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 5:20 PM CDT | Special Weather Statement | SJT | San Saba | 40 min |
Nearby
Flash Flood Warnings in Texas, 2021Every flash flood warning 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.