Alert archive / Texas / Flash Flood Warnings in 1996

Flash Flood Warning 40, NWS Shreveport, LA

September 26, 1996Harrison County, Texas

NWS Shreveport, LA issued this flash flood warning at Sep 26, 1996, 7:19 PM CDT for Harrison 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 counties it named.

The facts

Issued
Sep 26, 1996, 7:19 PM CDT (00:19 UTC)
Expired
Sep 26, 1996, 10:15 PM CDT
In force
3 hr
Issued by
NWS Shreveport, LA
Area
Whole counties

County Harrison County, TX

The radar

The Shreveport radar (KSHV), 51 km from the middle of the area, began a volume at 00:19 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 (KSHV), launched 00:00Z, 0.3 hours before the alert went out and 59 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 00:00Z on 1996-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 932 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 00:00Z on 1996-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 261 square meters per square second.19395878Sfc1 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
932 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
753 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
261 m²/s²
0-3 km storm-relative helicity
300 m²/s²
Significant tornado parameter
0.8
Supercell composite
11.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Shreveport, LA wrote its last area forecast discussion before this flash flood warning went out at Sep 26, 3:58 PM CDT, 3 hours 21 minutes earlier.

Area forecast discussion, Sep 26, 3:58 PM CDT, 3 hours 21 minutes before
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In the hours before

Special weather statement, Sep 26, 7:03 PM CDT, 16 minutes before
TXZ112-126-137-138-150-151-149-153-165-152-166-167-ARZ060-061-070-
071-072-073-LAZ001-002-003-004-006-005-010-012-013-018-019-021-
020-022-017-014-011-270200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
701 PM CDT THU SEP 26 1996

...A TORNADO WATCH REMAINS IN EFFECT FOR PORTIONS OF SOUTHWEST ARKANSAS
UNTIL 10 PM CDT...
...A TORNADO WATCH REMAINS IN EFFECT FOR PORTIONS OF NORTHEAST TEXAS AND
ALL OF NORTHWEST AND NORTH CENTRAL TEXAS UNTIL 900 PM CDT...
...FLASH FLOOD WATCH REMAINS IN EFFECT FOR ALL OF SOUTHWEST ARKANSAS
TONIGHT...

CURRENT DOPPLER RADAR IN SHREVEPORT CONTINUED TO INDICATE AN AREA OF
SHOWERS AND THUNDERSTORMS PRODUCING LOCALLY HEAVY RAINFALL ACROSS MOST
OF EXTREME NORTH CENTRAL AND NORTHEAST LOUISIANA. THE AREA IS MAINLY
EAST OF A LINE FROM BRADLEY ARKANSAS TO NEAR RUSTON AND NATCHITOCHES
LOUISIANA. THE HEAVIEST RAINFALL IN THIS LARGE AREA WAS OCCURING FROM
NEAR CLARKS EXTENDING NORTH ACROSS THE MONROE AREA TO NEAR BASTROP
LOUISIANA. THE AREA OF SHOWERS AND THUNDERSTORMS WAS MOVING TO THE EAST
AND NORTHEAST NEAR 30 MPH. ADDITIONAL RAINFALL AMOUNTS OF NEAR ONE INCH
ARE POSSIBLE WITH THE STRONGER THUNDERSTORMS.

ELSEWHERE...SHOWERS AND THUNDERSTORMS WERE CONTINUING TO DEVELOP ACROSS
NORTHEAST TEXAS...SOUTHWEST ARKANSAS AND EXTREME NORTHWEST LOUISIANA.
THIS 10 MILE WIDE AREA WAS LOCATED FROM SOUTH OF TYLER AND EXTENDED
NORTHEAST ACROSS LONGVIEW AND CADDO LAKE TO NEAR MAGNOLIA ARKANSAS.
RAINFALL AMOUNTS OF NEAR TWO INCHES ARE LIKELY WITH THESE
STORMS IN AN HOURS TIME AS THEY MOVE EASTWARD NEAR 15 MPH. HEAVY
RAINFALL WILL BE THE MAIN CULPRIT WITH THESE STORMS THIS EVENING INTO
TONIGHT BECAUSE THE STORMS CONTINUE TO TRAIN ACROSS THE SAME AREAS WHICH
SAW HEAVY PRECIPITATION EARLIER TODAY.

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELP ACROSS NORTHEAST
TEXAS...SOUTHWEST ARKANSAS AND NORTHWEST LOUISIANA TONIGHT INTO TOMORROW
IN RESPONSE TO A STRONG COLD FRONT WHICH EXTENDED INTO NORTHEAST TEXAS
AND SOUTHEAST OKLAHOMA. ADDITIONAL HEAVY RAINFALL WILL BE LIKELY ACROSS
THESE SAME AREAS TOMORRROW AS WELL.

STAY TUNNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES ON THIS DEVELOPING
WEATHER SITUATION.

 z

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 26, 10:48 PM CDTFlash Flood WarningSHVBossier, Caddo, Webster6 hr
Sep 26, 10:48 PM CDTFlash Flood WarningSHVClaiborne6 hr
Sep 26, 10:48 PM CDTFlash Flood WarningSHVDe Soto6 hr
Sep 27, 12:03 AM CDTFlash Flood WarningSHVNacogdoches, Shelby4 hr
Sep 27, 12:03 AM CDTFlash Flood WarningSHVAngelina4 hr
Sep 27, 12:09 AM CDTSevere Thunderstorm WarningSHVSabine, San Augustine66 min
Sep 27, 1:22 AM CDTSevere Thunderstorm WarningSHVSabine38 min

Nearby

Flash Flood Warnings in Texas, 1996Every flash flood warning in 1996

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.