Alert archive / Texas / Flash Flood Warnings in 2013

Flash Flood Warning 13, NWS Shreveport, LA

September 2, 20135 counties in Texas

NWS Shreveport, LA issued this flash flood warning at Sep 2, 2013, 10:05 AM CDT for 5 counties in 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
Sep 2, 2013, 10:05 AM CDT (15:05 UTC)
Expired
Sep 2, 2013, 1:00 PM CDT
In force
3 hr
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Flood severity
None

Counties Gregg County, TX, Harrison County, TX, Smith County, TX, Upshur County, TX, Wood County, TX

The radar

The Shreveport radar (KSHV), 97 km from the middle of the area, began a volume at 15:06 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

Shreveport, LA (KBAD), launched 12:00Z, 3.1 hours before the alert went out and 105 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, Shreveport, LA at 12:00Z on 2013-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1333 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 12:00Z on 2013-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 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
1333 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1055 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
7 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.

518 
WGUS54 KSHV 021505
FFWSHV
TXC183-203-423-459-499-021800-
/O.NEW.KSHV.FF.W.0013.130902T1505Z-130902T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1005 AM CDT MON SEP 2 2013

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GREGG COUNTY IN NORTHEAST TEXAS...
  THIS INCLUDES THE CITIES OF...WHITE OAK...LONGVIEW...KILGORE...
  GLADEWATER...
  WESTERN HARRISON COUNTY IN NORTHEAST TEXAS...
  EAST CENTRAL SMITH COUNTY IN NORTHEAST TEXAS...
  SOUTHERN UPSHUR COUNTY IN NORTHEAST TEXAS...
  SOUTHEASTERN WOOD COUNTY IN NORTHEAST TEXAS...

* UNTIL 100 PM CDT

* AT 958 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
  VERY HEAVY RAIN FROM A THUNDERSTORM NEAR GLADEWATER...MOVING       
  SOUTHEAST AT 5 MPH. THIS STORM WILL BE MOVING OVER PARTS OF GREGG
  COUNTY AND EXTREME NORTHEAST SMITH COUNTY THAT HAS RECEIVED AS     
  MUCH AS 2 INCHES EARLIER. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO      
  EAST MOUNTAIN...CLARKSVILLE CITY AND LIBERTY CITY...               
  LONGVIEW...AND WHITE OAK

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 2 INCHES ARE POSSIBLE IN THE WARNED 
AREA.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY...ESPECIALLY THE UNDERPASSES AND LOW LYING AREAS. THE WATER
DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY OR DROWN
OUT LEAVING YOU STALLED IN HIGH WATER. IF CAUGHT IN HIGH WATER...GET 
OUT AND MOVE TO HIGHER GROUND QUICKLY IF POSSIBLE.

&&

LAT...LON 3261 9523 3275 9468 3240 9457 3236 9460
      3237 9463 3237 9515

$$

06
1 follow-up statement
279 
WGUS74 KSHV 021705
FFSSHV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1205 PM CDT MON SEP 2 2013

TXC183-203-423-459-499-021713-
/O.CAN.KSHV.FF.W.0013.000000T0000Z-130902T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREGG TX-HARRISON TX-SMITH TX-UPSHUR TX-WOOD TX-
1205 PM CDT MON SEP 2 2013

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WOOD...UPSHUR...
SMITH...HARRISON AND GREGG COUNTIES...

SHOWERS AND THUNDERSTORMS DECREASED IN AREAL COVERAGE AND INTENSITY
WITH ONLY LIGHT TO MODERATE RAIN OVER THE AREA.

LAT...LON 3261 9523 3275 9468 3240 9457 3236 9460
      3237 9463 3237 9515

$$

06

Nearby

Flash Flood Warnings in Texas, 2013Every flash flood warning in 2013

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.