Alert archive / Texas / Flash Flood Warnings in 2000

Flash Flood Warning 16, NWS Amarillo, TX

October 24, 2000Hemphill County, Wheeler County, Texas

NWS Amarillo, TX issued this flash flood warning at Oct 24, 2000, 11:05 PM CDT for Hemphill County, Wheeler 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Oct 24, 2000, 11:05 PM CDT (04:05 UTC)
Expired
Oct 25, 2000, 2:00 AM CDT
In force
3 hr
Issued by
NWS Amarillo, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Hemphill County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 130 km from the middle of the area, began a volume at 04:08 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, 4.1 hours before the alert went out and 130 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 2000-10-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 76 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 2000-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 square meters per square second.19395878Sfc1 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
76 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
1016 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KAMA 250406
FFWAMA
TXC211-483-250700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
1105 PM CDT TUE OCT 24 2000

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HEMPHILL COUNTY IN THE TEXAS PANHANDLE
  WHEELER COUNTY IN THE TEXAS PANHANDLE

* UNTIL 200 AM CDT

* AT 1057 PM CDT...WEATHER SERVICE RADAR INDICATED THUNDERSTORMS
  PRODUCING VERY HEAVY RAINFALL OVER WHEELER AND HEMPHILL COUNTIES.
  RADAR ESTIMATES THAT 2 TO 6 INCHES OF RAIN HAS FALLEN OVER A 15 MILE 
  SWATH FROM LELA...TO WHEELER...TO BRISCOE AND ALLISON...TO LAKE MARVIN.
  THE SHERIFFS OFFICE IN WHEELER REPORTS THAT WATER COVERS THE ROADS WEST
  OF ALLISON...AS WELL AS NORTH AND SOUTH OF WHEELER.  MORE THUNDERSTORMS
  ARE MOVING TOWARD WHEELER AND HEMPHILL COUNTIES...MOVINNG NORTH AT 20 MPH.

* SOME LOCATIONS AFFECTED INCLUDE...
  WHEELER...TWITTY...SHAMROCK...LELA...LAKE MARVIN...
  GLAZIER...CANADIAN...BRISCOE AND ALLISON

DO NOT DRIVE ACROSS FLOODED ROADWAYS. MOST FLASH FLOOD DEATHS OCCUR
IN AUTOMIBILES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE FLOOD
DANGERS. DO NOT DRIVE INTO FLOODED AREAS.

LAT...LON 3520 10052 3521 10003 3605 10002 3605 10052

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 24, 7:55 PM CDTFlash Flood WarningAMAWheeler3 hr
Oct 25, 1:55 AM CDTFlash Flood WarningAMAHemphill, Lipscomb, Wheeler3 hr

Nearby

Flash Flood Warnings in Texas, 2000Every flash flood warning in 2000

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.