Alert archive / Oklahoma / Flash Flood Warnings in 2003

Flash Flood Warning 13, NWS Amarillo, TX

June 28, 2003Texas County, Oklahoma

NWS Amarillo, TX issued this flash flood warning at Jun 28, 2003, 9:55 PM CDT for Texas County, Oklahoma. 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 28, 2003, 9:55 PM CDT (02:55 UTC)
Expired: Jun 29, 2003, 1:00 AM CDT
In force: 3 hr
Issued by: NWS Amarillo, TX
Area: Counties, with a storm outline in the text

County Texas County, OK

The radar

The Amarillo radar (KAMA), 173 km from the middle of the area, began a volume at 02:59 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, 2.9 hours before the alert went out and 173 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: 2984 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1729 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 12.1

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KAMA 290256
FFWAMA
OKC139-290600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
955 PM CDT SAT JUN 28 2003

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  TEXAS COUNTY IN THE PANHANDLE OF OKLAHOMA
  THIS INCLUDES THE CITY OF GUYMON

* UNTIL 100 AM CDT

* AT 953 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN FROM BAKER TO 13 MILES NORTH OF EVA...OR FROM 13 MILES
  SOUTHWEST OF LIBERAL TO 4 MILES SOUTHWEST OF ELKHART...MOVING SOUTH
  AT 10 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE TYRONE...HOOKER...HOUGH...BAKER
  ...ADAMS...STURGIS...GOODWELL...OPTIMA AND HARDESTY

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

NEVER ATTEMPT TO CROSS FLOWING WATER IN AN AUTOMOBILE OR ON FOOT
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.

LAT...LON 3697 10203 3653 10202 3651 10098 3696 10098

$$

1 follow-up statement

000 
WGUS74 KAMA 290455
FFSAMA
OKC139-290600-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
1155 PM CDT SAT JUN 28 2003

...A FLASH FLOOD WARNING CONTINUES FOR TEXAS COUNTY UNTIL 100 AM
CDT...

AT 1150 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE VERY HEAVY RAINFALL OVER EASTERN TEXAS COUNTY...FROM 
HOOKER TO HARDESTY. THE STORM PRODUCING THE HEAVY RAINFALL WAS NEARLY 
STATIONARY.

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

NEVER ATTEMPT TO CROSS FLOWING WATER IN AN AUTOMOBILE OR ON FOOT
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.

LAT...LON 3696 10200 3651 10203 3651 10098 3698 10098

$$

JRC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 8:42 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	63 min
Jun 28, 9:47 PM CDT	Severe Thunderstorm Warning	AMA	Texas	58 min

Nearby

Flash Flood Warnings in Oklahoma, 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.