Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 72, NWS Austin/San Antonio, TX

May 24, 2015Caldwell County, Guadalupe County, Hays County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 24, 2015, 8:47 AM CDT for Caldwell County, Guadalupe County, Hays County, Texas. It was in force for 3 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 24, 2015, 8:47 AM CDT (13:47 UTC)
Expired: May 24, 2015, 11:45 AM CDT
In force: 3 hr
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Emergency: Flash flood emergency
Flood severity: None

Counties Caldwell County, TX, Guadalupe County, TX, Hays County, TX

The radar

The Austin/San Antonio radar (KEWX), 29 km from the middle of the area, began a volume at 13:50 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

Corpus Christi, TX (KCRP), launched 12:00Z, 1.8 hours before the alert went out and 227 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 112 J/kg
Mixed-layer CIN: -261 J/kg
Mixed-layer LCL: 1109 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 173 m²/s²
0-3 km storm-relative helicity: 166 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

589 
WGUS54 KEWX 241347
FFWEWX
TXC055-187-209-241645-
/O.NEW.KEWX.FF.W.0072.150524T1347Z-150524T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
847 AM CDT SUN MAY 24 2015

...FLASH FLOOD EMERGENCY FOR SAN MARCOS AND EASTERN CALDWELL 
COUNTY...

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN GUADALUPE COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHEASTERN HAYS COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHWESTERN CALDWELL COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 1145 AM CDT

* AT 841 AM CDT...EMERGENCY MANAGEMENT REPORTED FLASH FLOODING ACROSS
  THE WARNED AREA. FLASH FLOODING IS ALREADY OCCURRING.

  THIS IS A FLASH FLOOD EMERGENCY FOR SAN MARCOS...MARTINDALE...   
  LULING ...AND EASTERN CALDWELL COUNTY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SAN MARCOS...LULING...KYLE...MARTINDALE...UHLAND...STAPLES...
  FENTRESS...MAXWELL...STAIRTOWN...JOLIET...REEDVILLE AND REDWOOD.

FLOOD WATERS ARE MOVING DOWN THE SAN MARCOS RIVER FROM SAN MARCOS TO 
LULING. THE FLOOD CREST IS EXPECTED TO REACH LULING BY MONDAY 
MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. THIS IS AN EXTREMELY DANGEROUS AND LIFE
THREATENING SITUATION. DO NOT ATTEMPT TO TRAVEL UNLESS YOU ARE
FLEEING AN AREA SUBJECT TO FLOODING OR UNDER AN EVACUATION ORDER.

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 2963 9760 2964 9760 2964 9764 2967 9772
      2975 9786 2985 9794 2997 9796 2999 9780
      2964 9759

$$

1 follow-up statement

840 
WGUS54 KEWX 241357 CCA
FFWEWX
TXC055-187-209-241645-
/O.COR.KEWX.FF.W.0072.150524T1347Z-150524T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
857 AM CDT SUN MAY 24 2015

...FLASH FLOOD EMERGENCY FOR SAN MARCOS AND WESTERN CALDWELL 
COUNTY...

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN GUADALUPE COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHEASTERN HAYS COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHWESTERN CALDWELL COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 1145 AM CDT

* AT 847 AM CDT...EMERGENCY MANAGEMENT REPORTED FLASH FLOODING ACROSS
  THE WARNED AREA. FLASH FLOODING IS ALREADY OCCURRING.

  THIS IS A FLASH FLOOD EMERGENCY FOR SAN MARCOS...MARTINDALE...     
  LULING...AND WESTERN CALDWELL COUNTY. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SAN MARCOS...LULING...KYLE...MARTINDALE...UHLAND...STAPLES...
  FENTRESS...MAXWELL...STAIRTOWN...JOLIET...REEDVILLE AND REDWOOD.

FLOOD WATERS ARE MOVING DOWN THE SAN MARCOS RIVER FROM SAN MARCOS TO 
LULING. THE FLOOD CREST IS EXPECTED TO REACH LULING BY MONDAY 
MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. THIS IS AN EXTREMELY DANGEROUS AND LIFE
THREATENING SITUATION. DO NOT ATTEMPT TO TRAVEL UNLESS YOU ARE
FLEEING AN AREA SUBJECT TO FLOODING OR UNDER AN EVACUATION ORDER.

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 2963 9760 2964 9760 2964 9764 2967 9772
      2975 9786 2985 9794 2997 9796 2999 9780
      2964 9759

$$

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 23, 7:11 PM CDT	Special Weather Statement	EWX	Frio	49 min
May 23, 7:25 PM CDT	Flash Flood Warning	EWX	Frio, Zavala	3 hr
May 23, 7:27 PM CDT	River Flood Warning	EWX	Kerr	31 hr
May 23, 7:27 PM CDT	River Flood Warning	EWX	Kendall	19 hr
May 23, 7:39 PM CDT	River Flood Warning	EWX	Blanco	24 hr
May 23, 7:49 PM CDT	Special Weather Statement	EWX	Hays	26 min
May 23, 7:50 PM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Frio, Medina	40 min
May 23, 7:52 PM CDT	River Flood Warning	EWX	Uvalde	21 hr
May 23, 7:55 PM CDT	Tornado Warning	EWX	Bexar, Medina	35 min
May 23, 8:02 PM CDT	Flash Flood Warning	EWX	Frio	3 hr
May 23, 8:04 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Hays, Travis	41 min
May 23, 8:10 PM CDT	Flash Flood Warning	EWX	Bandera, Medina, Uvalde	3 hr
May 23, 8:13 PM CDT	River Flood Warning	EWX	Comal	22 hr
May 23, 8:13 PM CDT	River Flood Warning	EWX	Hays	55 hr
May 23, 8:13 PM CDT	River Flood Warning	EWX	Caldwell, Gonzales	4 days
May 23, 8:13 PM CDT	River Flood Warning	EWX	DeWitt	8 days
May 23, 8:13 PM CDT	Tornado Warning	EWX	Hays, Travis	32 min
May 23, 8:23 PM CDT	Flash Flood Warning	EWX	Atascosa, Bexar, Blanco, Burnet, Comal, Hays and 2 more	3 hr
May 23, 8:23 PM CDT	Tornado Warning	EWX	Bexar	37 min
May 23, 8:32 PM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Comal, Frio, Guadalupe	43 min
May 23, 8:40 PM CDT	River Flood Warning	EWX	Uvalde	32 hr
May 23, 8:40 PM CDT	River Flood Warning	EWX	Frio	6 days
May 23, 8:43 PM CDT	Tornado Warning	EWX	Travis	32 min
May 23, 8:45 PM CDT	Special Weather Statement	EWX	Hays	45 min
May 23, 8:55 PM CDT	Tornado Warning	EWX	Hays, Travis	35 min
May 23, 8:56 PM CDT	River Flood Warning	EWX	Kerr	26 hr
May 23, 9:07 PM CDT	Special Weather Statement	EWX	Atascosa, Caldwell, Guadalupe, Wilson	53 min
May 23, 9:16 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Hays, Travis	44 min
May 23, 9:18 PM CDT	Flash Flood Warning	EWX	Caldwell, Comal, Guadalupe, Wilson	3 hr
May 23, 9:32 PM CDT	Tornado Warning	EWX	Burnet, Williamson	31 min
May 23, 9:32 PM CDT	Tornado Warning	EWX	Burnet, Williamson	28 min
May 23, 9:39 PM CDT	Severe Thunderstorm Warning	EWX	Williamson	51 min
May 23, 9:52 PM CDT	Flash Flood Warning	EWX	Bastrop, Lee	3 hr
May 23, 10:03 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Fayette, Gonzales, Lee, Williamson	42 min
May 23, 10:31 PM CDT	Flash Flood Warning	EWX	Frio, Medina, Uvalde, Zavala	3 hr
May 23, 10:35 PM CDT	Special Weather Statement	EWX	Atascosa, Gonzales	40 min
May 23, 10:47 PM CDT	Special Weather Statement	EWX	Fayette	28 min
May 23, 10:49 PM CDT	Areal Flood Warning	EWX	Bandera, Real	3 hr
May 23, 10:51 PM CDT	Areal Flood Advisory	EWX	Burnet	3 hr
May 23, 10:53 PM CDT	River Flood Warning	EWX	Travis	40 hr
May 23, 11:05 PM CDT	River Flood Warning	EWX	Uvalde	28 hr
May 23, 11:13 PM CDT	Flash Flood Warning	EWX	Blanco, Burnet, Comal, Hays, Travis, Williamson	3 hr
May 23, 11:14 PM CDT	Flash Flood Warning	EWX	Atascosa, Bexar	3 hr
May 23, 11:24 PM CDT	Flash Flood Warning Emergency	EWX	Hays	6 hr
May 23, 11:38 PM CDT	Flash Flood Warning	EWX	Edwards, Kinney, Real, Val Verde	3 hr
May 23, 11:57 PM CDT	River Flood Warning	EWX	Bexar	19 hr
May 23, 11:57 PM CDT	River Flood Warning	EWX	Bexar	44 hr
May 23, 11:57 PM CDT	River Flood Warning	EWX	Bexar	27 hr
May 23, 11:57 PM CDT	River Flood Warning	EWX	Bexar, Wilson	55 hr
May 24, 12:03 AM CDT	River Flood Warning	EWX	Medina	22 hr
May 24, 12:03 AM CDT	River Flood Warning	EWX	Medina	22 hr
May 24, 12:25 AM CDT	Flash Flood Warning	EWX	Bandera, Bexar, Blanco, Comal, Gillespie, Kendall and 3 more	6 hr
May 24, 12:55 AM CDT	Special Weather Statement	EWX	Bandera, Kerr	50 min
May 24, 1:25 AM CDT	Flash Flood Warning Emergency	EWX	Caldwell, Guadalupe, Hays	8 hr
May 24, 1:34 AM CDT	Flash Flood Warning	EWX	Frio, Medina, Uvalde, Zavala	3 hr
May 24, 2:09 AM CDT	Flash Flood Warning	EWX	Bastrop, Blanco, Burnet, Caldwell, Comal, Guadalupe and 4 more	5 hr
May 24, 2:23 AM CDT	River Flood Warning	EWX	Williamson	21 hr
May 24, 3:21 AM CDT	Flash Flood Warning	EWX	DeWitt, Fayette, Gonzales, Lavaca, Lee	4 hr
May 24, 5:11 AM CDT	Flash Flood Warning Emergency	EWX	Hays	3 hr
May 24, 7:29 AM CDT	River Flood Warning	EWX	Bexar, Guadalupe	20 hr
May 24, 7:29 AM CDT	River Flood Warning	EWX	Karnes	4 days
May 24, 8:06 AM CDT	Areal Flood Warning	EWX	Hays	6 hr
May 24, 8:32 AM CDT	River Flood Warning	EWX	Travis	21 hr
May 24, 9:17 AM CDT	River Flood Warning	EWX	Caldwell, Gonzales	22 hr
May 24, 9:23 AM CDT	River Flood Warning	EWX	Gonzales	5 days
May 24, 9:56 AM CDT	River Flood Warning	EWX	Karnes	3 days
May 24, 11:38 AM CDT	Areal Flood Warning	EWX	Caldwell, Guadalupe, Hays	6 hr
May 24, 2:12 PM CDT	Areal Flood Warning	EWX	Hays	3 hr
May 24, 3:22 PM CDT	Flash Flood Watch	EWX	Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more	34 hr

Nearby

Flash Flood Warnings in Texas, 2015 Every flash flood warning in 2015

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.