Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 3, NWS Amarillo, TX

June 4, 2003Deaf Smith County, Texas

NWS Amarillo, TX issued this flash flood warning at Jun 4, 2003, 7:44 PM CDT for Deaf Smith 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, 7:44 PM CDT (00:44 UTC)
Expired: Jun 4, 2003, 10:45 PM CDT
In force: 3 hr
Issued by: NWS Amarillo, TX
Area: Counties, with a storm outline in the text

County Deaf Smith County, TX

The radar

The Amarillo radar (KAMA), 85 km from the middle of the area, began a volume at 00:46 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, 0.7 hours before the alert went out and 86 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 050045
FFWAMA
TXC117-050345-

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

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DEAF SMITH COUNTY IN THE PANHANDLE OF TEXAS
  THIS INCLUDES THE CITY OF HEREFORD

* UNTIL 1045 PM CDT

* AT 741 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED            
  THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL OVER THE EASTERN PART  
  OF DEAF SMITH COUNTY...MOVING SOUTHEAST AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BOOTLEG AND SIMMS

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

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

LAT...LON 3517 10285 3477 10295 3478 10219 3516 10220

$$

1 follow-up statement

000 
WGUS74 KAMA 050130
FFSAMA
TXC117-050230-

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

...A FLASH FLOOD WARNING CONTINUES FOR DEAF SMITH COUNTY UNTIL 1045 
PM CDT...

AT 810 PM...STORM SPOTTER OBSERVED FLASH FLOODING ALONG FARM TO 
MARKET ROAD 1412 NEAR SIMMS. 

AT 828 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE VERY HEAVY RAINFALL ACROSS MOST OF DEAF SMITH COUNTY... 
MOVING EAST TO SOUTHEAST AT 15 MPH. THE HEAVY RAINS WERE LOCATED 
OVER THE SOUTHEAST PART OF THE COUNTY NEAR HEREFORD.

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

EXCESSIVE RUNOFF FROM THIS STORM 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.
CAMPERS...HIKERS AND MOTORISTS SHOULD SEEK HIGHER GROUND NOW

LAT...LON 3515 10279 3476 10296 3476 10219 3515 10218

$$

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, 7:49 PM CDT	Severe Thunderstorm Warning	AMA	Potter, Randall	56 min
Jun 4, 8:02 PM CDT	Flash Flood Warning	AMA	Randall	3 hr
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.