Alert archive / Texas / Flash Flood Warnings in 2017
Flash Flood Warning 29, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 27, 2017, 12:05 PM CDT for Edwards County, Kinney County, Uvalde County, Texas. It was in force for 3 hr. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 27, 2017, 12:05 PM CDT (17:05 UTC)
- Expired
- Sep 27, 2017, 3:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Edwards County, TX, Kinney County, TX, Uvalde County, TX
The radar
The Laughlin AFB radar (KDFX), 37 km from the middle of the area, began a volume at 17:07 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 27, 1:15 PM CDT | FLOOD | 9 Ssw Montell, TX | FM 334 ABOUT A MILE EAST OF LIVE OAK ROAD, OR ABOUT 4 MILES WEST OF HIGHWAY 55 IS IMPASSIBLE DUE TO FLOODING RAINS. |
| Sep 27, 1:15 PM CDT | FLASH FLOOD | 9 Ssw Montell, TX | FM 334 ABOUT A MILE EAST OF LIVE OAK ROAD, OR ABOUT 4 MILES WEST OF HIGHWAY 55 IS IMPASSIBLE DUE TO FLOODING RAINS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Del Rio, TX (KDLF), launched 12:00Z, 5.1 hours before the alert went out and 74 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
- 4 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 515 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 158 m²/s²
- 0-3 km storm-relative helicity
- 191 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
054
WGUS54 KEWX 271705
FFWEWX
TXC137-271-463-272000-
/O.NEW.KEWX.FF.W.0029.170927T1705Z-170927T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
1205 PM CDT WED SEP 27 2017
The National Weather Service in Austin San Antonio has issued a
* Flash Flood Warning for...
Eastern Kinney County in south central Texas...
Western Uvalde County in south central Texas...
South central Edwards County in south central Texas...
* Until 300 PM CDT
* At 1200 PM CDT, Doppler radar indicated a band of showers
producing moderate to heavy rainfall with rain rates up to 2
inches per hour across the warned area. The warned area has
already received anywhere from 3 to 6 inches of rain in the past 5
hours. Flash flooding is expected to begin shortly.
* Some locations that will experience flooding include...
Laguna, Montell, Dabney, Blewett, Cline and Turkey Mountain.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 2909 10017 2968 10047 2990 10045 2990 10010
2975 10002 2972 10003 2971 10006 2968 10002
2963 10002 2962 9996 2909 9990
$$
BMWThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 8:34 PM CDT | River Flood Warning | EWX | Val Verde | 38 hr |
| Sep 26, 8:34 PM CDT | River Flood Warning | EWX | Val Verde | 32 hr |
| Sep 27, 2:19 AM CDT | Areal Flood Advisory | EWX | Dimmit, Frio, Zavala | 4 hr |
| Sep 27, 5:20 AM CDT | Areal Flood Advisory | EWX | Maverick | 4 hr |
| Sep 27, 6:11 AM CDT | Areal Flood Advisory | EWX | Dimmit, Frio, Zavala | 3 hr |
| Sep 27, 9:07 AM CDT | Areal Flood Advisory | EWX | Kinney, Uvalde | 6 hr |
| Sep 27, 9:19 AM CDT | Areal Flood Advisory | EWX | Dimmit, Frio, Maverick, Zavala | 6 hr |
| Sep 27, 9:43 AM CDT | River Flood Warning | EWX | Dimmit | 4 days |
| Sep 27, 1:04 PM CDT | Flash Flood Warning | EWX | Zavala | 116 min |
| Sep 27, 2:51 PM CDT | Flash Flood Warning | EWX | Uvalde, Zavala | 3 hr |
| Sep 27, 4:53 PM CDT | Areal Flood Advisory | EWX | Frio | 3 hr |
Nearby
Flash Flood Warnings in Texas, 2017Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.