Alert archive / Texas / Flash Flood Warnings in 2017
Flash Flood Warning 18, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 28, 2017, 5:42 PM CDT for 4 counties in Texas. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 28, 2017, 5:42 PM CDT (22:42 UTC)
- Expired
- May 28, 2017, 9:15 PM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Blanco County, TX, Burnet County, TX, Gillespie County, TX, Kerr County, TX
The radar
The Austin/San Antonio radar (KEWX), 88 km from the middle of the area, began a volume at 22:43 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 (KDLF), launched 12:00Z, 10.7 hours before the alert went out and 240 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
- 3017 J/kg
- Mixed-layer CIN
- -339 J/kg
- Mixed-layer LCL
- 1097 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
209
WGUS54 KEWX 282242
FFWEWX
TXC031-053-171-265-290215-
/O.NEW.KEWX.FF.W.0018.170528T2242Z-170529T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
542 PM CDT SUN MAY 28 2017
The National Weather Service in Austin San Antonio has issued a
* Flash Flood Warning for...
East central Kerr County in south central Texas...
Northern Blanco County in south central Texas...
Southeastern Gillespie County in south central Texas...
South central Burnet County in south central Texas...
* Until 915 PM CDT
* At 541 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain from Hunt to near Fredericksburg to Round Mountain. Up
to three inches of rain have already fallen. Flash flooding is
expected to begin shortly.
* Some locations that will experience flooding include...
Kerrville, Fredericksburg, Marble Falls, Round Mountain, Hunt,
Horseshoe Bay, Ingram, Meadowlakes, Johnson City, Stonewall,
Spicewood, Blowout, Tivydale, Rocky Hill, Waltonia, Rocky Creek,
Hye, Cypress Mill, Blumenthal and Kerrville State Park.
Additional rainfall amounts of 1 to 4 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
&&
LAT...LON 3043 9813 3029 9822 3014 9859 3014 9892
3006 9897 2997 9937 3013 9938 3042 9876
3050 9839 3049 9835 3051 9835 3062 9824
$$
CP2 follow-up statements
148
WGUS74 KEWX 290023
FFSEWX
Flash Flood Statement
National Weather Service Austin/San Antonio TX
723 PM CDT SUN MAY 28 2017
TXC031-053-171-265-290215-
/O.CON.KEWX.FF.W.0018.000000T0000Z-170529T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kerr TX-Blanco TX-Gillespie TX-Burnet TX-
723 PM CDT SUN MAY 28 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR
EAST CENTRAL KERR...NORTHERN BLANCO...SOUTHEASTERN GILLESPIE AND
SOUTH CENTRAL BURNET COUNTIES...
At 721 PM CDT, Doppler radar indicated thunderstorms producing heavy
rain in the Fredericksburg to Stonewall areas with light rain
elsewhere. Up to four inches of rain have already fallen. Flash
flooding will continue across the warned area.
Some locations that will experience flooding include...
Kerrville, Fredericksburg, Marble Falls, Round Mountain, Hunt,
Horseshoe Bay, Ingram, Meadowlakes, Johnson City, Stonewall,
Spicewood, Blowout, Tivydale, Rocky Hill, Waltonia, Rocky Creek, Hye,
Cypress Mill, Blumenthal and Kerrville State Park.
Additional rainfall amounts of up to 1 inch are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
&&
LAT...LON 3043 9813 3029 9822 3014 9859 3014 9892
3006 9897 2997 9937 3013 9938 3042 9876
3050 9839 3049 9835 3051 9835 3062 9824
$$
CP457
WGUS74 KEWX 290210
FFSEWX
Flash Flood Statement
National Weather Service Austin/San Antonio TX
910 PM CDT SUN MAY 28 2017
TXC031-053-171-265-290220-
/O.EXP.KEWX.FF.W.0018.000000T0000Z-170529T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kerr TX-Blanco TX-Gillespie TX-Burnet TX-
910 PM CDT SUN MAY 28 2017
...THE FLASH FLOOD WARNING FOR EAST CENTRAL KERR...NORTHERN BLANCO...
SOUTHEASTERN GILLESPIE AND SOUTH CENTRAL BURNET COUNTIES WILL EXPIRE
AT 915 PM CDT...
The heavy rain has ended. Flash flooding is no longer expected to
pose a threat. Please continue to heed any remaining road closures.
LAT...LON 3043 9813 3029 9822 3014 9859 3014 9892
3006 9897 2997 9937 3013 9938 3042 9876
3050 9839 3049 9835 3051 9835 3062 9824
$$
CPThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 12:05 AM CDT | Special Weather Statement | EWX | Burnet | 40 min |
| May 28, 2:43 PM CDT | Special Weather Statement | EWX | Real | 47 min |
| May 28, 2:53 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Real | 82 min |
| May 28, 3:13 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kinney, Val Verde | 77 min |
| May 28, 3:25 PM CDT | Flash Flood Warning | EWX | Edwards, Kinney, Real, Val Verde | 4 hr |
| May 28, 3:57 PM CDT | Severe Thunderstorm Warning | EWX | Kerr | 78 min |
| May 28, 4:12 PM CDT | Special Weather Statement | EWX | Gillespie | 48 min |
| May 28, 4:12 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Real | 78 min |
| May 28, 4:31 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kinney, Val Verde | 74 min |
| May 28, 4:48 PM CDT | Special Weather Statement | EWX | Burnet | 42 min |
| May 28, 4:51 PM CDT | Areal Flood Advisory | EWX | Kerr, Real | 3 hr |
| May 28, 4:54 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Burnet, Gillespie | 47 min |
| May 28, 4:57 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Williamson | 46 min |
| May 28, 5:05 PM CDT | Areal Flood Advisory | EWX | Blanco, Burnet, Gillespie | 3 hr |
| May 28, 5:19 PM CDT | Areal Flood Advisory | EWX | Burnet, Williamson | 3 hr |
| May 28, 5:29 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Real | 31 min |
| May 28, 5:33 PM CDT | Flash Flood Warning | EWX | Edwards, Kerr, Real, Uvalde | 3 hr |
| May 28, 5:40 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 80 min |
| May 28, 5:41 PM CDT | Severe Thunderstorm Warning | EWX | Kinney, Val Verde | 79 min |
| May 28, 5:56 PM CDT | Areal Flood Advisory | EWX | Kinney, Val Verde | 3 hr |
| May 28, 5:59 PM CDT | Areal Flood Advisory | EWX | Edwards, Val Verde | 3 hr |
| May 28, 6:09 PM CDT | Special Weather Statement | EWX | Kerr | 51 min |
| May 28, 6:12 PM CDT | Severe Thunderstorm Warning | EWX | Travis, Williamson | 48 min |
| May 28, 6:28 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kendall, Kerr | 62 min |
| May 28, 6:36 PM CDT | Severe Thunderstorm Warning | EWX | Frio, Medina, Uvalde, Zavala | 69 min |
| May 28, 6:44 PM CDT | Flash Flood Warning | EWX | Edwards, Kinney, Val Verde | 4 hr |
| May 28, 6:58 PM CDT | Special Weather Statement | EWX | Dimmit | 47 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.