Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 4, NWS Amarillo, TX

June 4, 2003Randall County, Texas

NWS Amarillo, TX issued this flash flood warning at Jun 4, 2003, 8:02 PM CDT for Randall 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: Jun 4, 2003, 8:02 PM CDT (01:02 UTC)
Expired: Jun 4, 2003, 11:00 PM CDT
In force: 3 hr
Issued by: NWS Amarillo, TX
Area: Counties, with a storm outline in the text

County Randall County, TX

The radar

The Amarillo radar (KAMA), 31 km from the middle of the area, began a volume at 01:06 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, 1.0 hours before the alert went out and 31 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: 945 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 994 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 143 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 7.2

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KAMA 050102
FFWAMA
TXC381-050400-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
802 PM CDT WED JUN 4 2003

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  RANDALL COUNTY IN THE PANHANDLE OF TEXAS
  THIS INCLUDES THE CITY OF CANYON

* UNTIL 1100 PM CDT

* AT 756 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL 10 MILES NORTH OF
  UMBARGER...OR ABOUT 13 MILES NORTHWEST OF CANYON...MOVING SOUTHEAST
  AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE LAKE TANGLEWOOD AND PALO
  DURO CANYON

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE FLOOD
DANGERS.

RAPIDLY RISING WATER CAN QUICKLY MAKE LOW WATER CROSSINGS IMPASSABLE.
CAMPERS...HIKERS AND MOTORISTS SHOULD SEEK HIGHER GROUND NOW

LAT...LON 3517 10215 3490 10215 3477 10166 3517 10165

$$

1 follow-up statement

000 
WGUS74 KAMA 050148
FFSAMA
TXC381-050245-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
842 PM CDT WED JUN 4 2003

...A FLASH FLOOD WARNING CONTINUES FOR RANDALL COUNTY UNTIL 1100 PM
CDT...

AT 806 PM...SKYWARN SPOTTER REPORTED MAJOR STREET FLOODING AT 
UMBARGER. 

AT 842 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE VERY HEAVY RAINFALL OVER NORTHERN AND WESTERN RANDALL 
COUNTY. MOVEMENT WAS EAST SOUTHEAST AT 15 MPH. 

IF FLASH FLOODING IS OBSERVED ACT QUICKLY MOVE TO HIGHER GROUND TO
ESCAPE FLOOD WATERS.

EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF LOW 
SPOTS ALONG HIGHWAYS...SMALL CREEKS AND NORMALLY DRY WASHES...AS WELL
AS LOW LYING RANCH LAND. 

RAPIDLY RISING WATER CAN QUICKLY MAKE LOW WATER CROSSINGS 
IMPASSABLE...ESPECIALLY ALONG THE PALO DURO CANYON. CAMPERS...HIKERS 
AND MOTORISTS SHOULD SEEK HIGHER GROUND NOW

LAT...LON 3516 10213 3477 10214 3477 10166 3518 10166

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 7:34 PM CDT	Severe Thunderstorm Warning	AMA	Oldham	26 min
Jun 4, 7:44 PM CDT	Flash Flood Warning	AMA	Deaf Smith	3 hr
Jun 4, 7:49 PM CDT	Severe Thunderstorm Warning	AMA	Potter, Randall	56 min
Jun 5, 3:57 PM CDT	Severe Thunderstorm Warning	AMA	Sherman	63 min
Jun 5, 4:42 PM CDT	Severe Thunderstorm Warning	AMA	Hansford	63 min
Jun 5, 5:32 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree	58 min
Jun 5, 5:52 PM CDT	Severe Thunderstorm Warning	AMA	Oldham	53 min
Jun 5, 6:13 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill	62 min
Jun 5, 6:25 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Randall	50 min
Jun 5, 6:32 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	43 min

Nearby

Flash Flood Warnings in Texas, 2003 Every flash flood warning in 2003

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.