Alert archive / Texas / Flash Flood Warnings in 2008

Flash Flood Warning 13, NWS Amarillo, TX

August 18, 2008Lipscomb County, Ochiltree County, Texas; Beaver County, Oklahoma

NWS Amarillo, TX issued this flash flood warning at Aug 18, 2008, 8:59 PM CDT for Lipscomb County, Ochiltree County, Texas; Beaver 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
Aug 18, 2008, 8:59 PM CDT (01:59 UTC)
Expired
Aug 19, 2008, 12:00 AM CDT
In force
3 hr
Issued by
NWS Amarillo, TX
Area
Storm-based polygon
Flood severity
None

Counties Beaver County, OK, Lipscomb County, TX, Ochiltree County, TX

The radar

The Dodge City radar (KDDC), 161 km from the middle of the area, began a volume at 02:01 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

Dodge City, (KDDC), launched 00:00Z, 2.0 hours before the alert went out and 163 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, Dodge City, at 00:00Z on 2008-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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, Dodge City, at 00:00Z on 2008-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
13 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
802 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KAMA 190159
FFWAMA
OKC007-TXC295-357-190500-
/O.NEW.KAMA.FF.W.0013.080819T0159Z-080819T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
859 PM CDT MON AUG 18 2008

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN BEAVER COUNTY IN THE PANHANDLE OF OKLAHOMA...
  LIPSCOMB COUNTY IN THE PANHANDLE OF TEXAS...
  THIS INCLUDES THE CITY OF LIPSCOMB...
  EASTERN OCHILTREE COUNTY IN THE PANHANDLE OF TEXAS...
  THIS INCLUDES THE CITY OF PERRYTON...

* UNTIL MIDNIGHT CDT

* AT 853 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH     
  FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. SEVERAL ROADS   
  REMAIN CLOSED WITH ADDTIONAL RAINS EXPECTED.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SLAPOUT...
  ELMWOOD...BALKO...WOLF CREEK PARK...FOLLETT...DARROUZETT AND BOOKER

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY.
MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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

TO REPORT FLOODING...PLEASE CALL THE NATIONAL WEATHER SERVICE AT 8 0
6 3 3 5 1 1 2 1.

LAT...LON 3606 10000 3607 10092 3676 10073 3678 10001

$$

JC
2 follow-up statements
000 
WGUS74 KAMA 190311
FFSAMA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
1011 PM CDT MON AUG 18 2008

OKC007-TXC295-357-190500-
/O.CON.KAMA.FF.W.0013.000000T0000Z-080819T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BEAVER OK-LIPSCOMB TX-OCHILTREE TX-
1011 PM CDT MON AUG 18 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
EASTERN OCHILTREE...LIPSCOMB AND SOUTHERN BEAVER COUNTIES...

AT 1005 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE RAIN AND THUNDERSTORMS PRODUCING FLASH FLOODING OVER THE 
WARNED AREA. LOCAL LAW ENFORCEMENT AND EMERGENCY MANAGEMENT 
OFFICIALS REPORT THAT MANY ROADS REMAIN CLOSED DUE TO HIGH 
WATER...INCLUDING ROADS AROUND ELMWOOD...BOOKER...AND WOLF CREEK 
PARK.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SLAPOUT...
ELMWOOD...BALKO...FOLLETT...DARROUZETT AND BOOKER

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
AMARILLO.

LAT...LON 3606 10000 3607 10092 3676 10073 3678 10001

$$

JC
000 
WGUS74 KAMA 190452
FFSAMA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
1152 PM CDT MON AUG 18 2008

OKC007-TXC295-357-190500-
/O.CON.KAMA.FF.W.0013.000000T0000Z-080819T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BEAVER OK-LIPSCOMB TX-OCHILTREE TX-
1152 PM CDT MON AUG 18 2008

...THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT MIDNIGHT CDT 
FOR EASTERN OCHILTREE...LIPSCOMB AND SOUTHERN BEAVER COUNTIES...

AT 1140 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT 
WATERS WERE RECEDING AND THAT NO REPORTS OF FLOODING WERE BEING 
RECEIVED.

ADDITIONAL LIGHT TO MODERATE RAINS ARE EXPECTED OVERNIGHT. MOTORISTS 
ARE ADVISED TO EXERCISE CAUTION...AND REMAIN ALERT FOR AREAS OF 
PONDED WATER.

LAT...LON 3606 10000 3607 10092 3676 10073 3678 10001

$$

JC

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 7:07 PM CDTAreal Flood AdvisoryAMAHemphill, Roberts6 hr
Aug 18, 8:25 PM CDTAreal Flood AdvisoryAMADeaf Smith3 hr
Aug 19, 1:26 AM CDTAreal Flood AdvisoryAMAHemphill, Roberts4 hr
Aug 18, 11:56 PM CDTAreal Flood WarningAMABeaver9 hr

Nearby

Flash Flood Warnings in Texas, 2008Flash Flood Warnings in Oklahoma, 2008Every flash flood warning in 2008

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.