Alert archive / Texas / Flash Flood Warnings in 2007

Flash Flood Warning 13, NWS Amarillo, TX

June 19, 2007Potter County, Randall County, Texas

NWS Amarillo, TX issued this flash flood warning at Jun 19, 2007, 8:29 PM CDT for Potter County, Randall County, Texas. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 19, 2007, 8:29 PM CDT (01:29 UTC)
Expired
Jun 19, 2007, 9:00 PM CDT
In force
31 min
Issued by
NWS Amarillo, TX
Area
Whole counties

Counties Potter County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 18 km from the middle of the area, began a volume at 01:32 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.5 hours before the alert went out and 18 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-pSkew-T log-p diagram, Amarillo Airport, TX at 00:00Z on 2007-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3305 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 00:00Z on 2007-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
3305 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
1823 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.1

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KAMA 200130
FFWAMA
TXC375-381-200200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
829 PM CDT TUE JUN 19 2007

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN POTTER COUNTY IN THE PANHANDLE OF TEXAS...
  THIS INCLUDES THE CITY OF AMARILLO...
  NORTHERN RANDALL COUNTY IN THE PANHANDLE OF TEXAS...

* UNTIL 900 PM CDT

* AT 828 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  STATIONARY THUNDERSTORMS ALONG INTERSTATE 40.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BUSHLAND   
  AND AMARILLO

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

LAT...LON 3493 10215 3507 10162 3525 10162 3524 10214

$$

KRAMAR

The office that day

Everything else NWS Amarillo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 19, 7:00 PM CDTSevere Thunderstorm WarningAMADeaf Smith75 min
Jun 19, 8:05 PM CDTSevere Thunderstorm WarningAMAPotter, Randall70 min
Jun 19, 8:36 PM CDTFlash Flood WarningAMAPotter, Randall2 hr
Jun 19, 8:36 PM CDTSevere Thunderstorm WarningAMADeaf Smith54 min
Jun 19, 9:10 PM CDTSevere Thunderstorm WarningAMACarson40 min
Jun 19, 9:53 PM CDTSevere Thunderstorm WarningAMALipscomb88 min
Jun 19, 10:11 PM CDTSevere Thunderstorm WarningAMAOchiltree64 min
Jun 19, 10:28 PM CDTFlash Flood WarningAMALipscomb, Ochiltree3 hr
Jun 19, 10:35 PM CDTSevere Thunderstorm WarningAMAHemphill55 min
Jun 19, 11:27 PM CDTSevere Thunderstorm WarningAMAGray, Wheeler76 min
Jun 19, 11:35 PM CDTHigh Wind WarningAMAArmstrong, Carson, Donley85 min
Jun 19, 11:40 PM CDTSevere Thunderstorm WarningAMACollingsworth95 min
Jun 20, 1:16 AM CDTHigh Wind WarningAMAPotter, Randall73 min

Nearby

Flash Flood Warnings in Texas, 2007Every flash flood warning in 2007

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.