Alert archive / Texas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 40, NWS Shreveport, LA

April 5, 1994Panola County, Texas

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 5, 1994, 4:45 PM CDT for Panola County, Texas. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Apr 5, 1994, 4:45 PM CDT (21:45 UTC)
Expired
Apr 5, 1994, 5:45 PM CDT
In force
60 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Panola County, TX

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 12:00Z, 9.8 hours before the alert went out and 35 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, Longview/Gregg, TX at 12:00Z on 1994-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 402 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, Longview/Gregg, TX at 12:00Z on 1994-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 364 square meters per square second.1939587897117136Sfc1 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
402 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
550 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
364 m²/s²
0-3 km storm-relative helicity
248 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.8

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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 5, 11:30 AM CDT, 5 hours 15 minutes before
OKZ076-077-049-053-TXZ095-097-TXZ106>112-TXZ124>126-136>138-149>153-
166-167-ARZ050>053-ARZ059>061-ARZ066-ARZ070>073-LAZ001>027-051735-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1129 AM CDT TUE APR 5 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MUCH OF NORTHEAST AND NORTH
CENTRAL TEXAS...PORTIONS OF SOUTHEAST OKLAHOMA AND PORTIONS OF WESTERN
ARKANSAS...

AT 1125 AM...AREAL COVERAGE OF SHOWERS CONTINUED TO DECREASE ACROSS THE
ARKLATEX...THIS WILL SET THE STAGE FOR ISOLATED STRONG THUNDERSTORMS
TO DEVELOP OVER SOUTHWEST ARKANSAS...SOUTHEAST OKLAHOMA AND NORTHEAST
TEXAS BY EARLY THIS AFTEROON. STRONG THUNDERSTORMS WERE ALREADY DEVELOPING
SOUTH OF BROKEN BOW OKLAHOMA AND 20 MILES SOUTH OF LONGVIEW TEXAS. THESE
STORMS WERE MOVING TO THE NORTHEAST AT NEAR 40 MPH.

TO THE WEST AND NORTHWEST...A BROKEN LINE OF THUNDERSTORMS WAS DEVELOPING
AHEAD OF A COLD FRONT FROM 20 MILES NORTHWEST OF HUGO OKLAHOMA TO THE
EASTERN SECTIONS OF THE DALLAS AREA TO EAST OF WACO TEXAS. CONDITIONS ARE
FAVORABLE FOR THIS SYSTEM TO INCREASE THIS AFTERNOON AS IT SPREADS
EASTWARD ACROSS THE AREA.

INDIVIDUAL THUNDERSTORMS WERE MOVING NORTHEAST AT 30 TO 35 MILES AN
HOUR WHILE THE OVERALL SYSTEM CONTINUED TO MOVE EAST AT 20 TO 25
MILES AN HOUR.

ARKLATEX RESIDENTS ARE REMINDED THAT EVEN THOUGH THIS FIRST ROUND OF
THUNDERSTORMS MAY ONLY PRODUCE HEAVY RAINFALL AND GUSTY WINDS...THE
SYSTEM THAT WILL DEVELOP IN ITS WAKE WILL PRODUCE SEVERE STORMS AS
IT TRACKS ACROSS THE REGION THIS AFTERNOON AND TONIGHT.
Special weather statement, Apr 5, 12:32 PM CDT, 4 hours 13 minutes before
OKZ076-077-049-053-TXZ095-097-TXZ106>112-TXZ124>126-136>138-149>153-
166-167-ARZ050>053-ARZ059>061-ARZ066-ARZ070>073-LAZ001>027-051835-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1225 PM CDT TUE APR 5 1994

...SEVERE THUNDERSTORM WATCH REMAINED IN EFFECT FOR PARTS OF NORTHEAST
AND NORTHCENTRAL TEXAS...ALONG WITH PARTS OF SOUTHEAST OKLAHOMA AND
WEST CENTRAL ARKANSAS...
     ...FLASH FLOOD WATCH REMAINED IN EFFECT FOR ARKANSAS...

AT 1220 PM...WEATHER SERVICE RADAR IN SHREVEPORT INDICATED ISOLATED
STRONG THUNDERSTORMS OVER EAST TEXAS BETWEEN LONGVIEW AND MARSHALL
TEXAS AND NORTHEAST OF CARTHAGE TEXAS. ALSO INDICATED AT 1215 PM WAS
AN ISOLATED STRONG THUNDERSTORM OVER WEST CENTRAL ARKANSAS BETWEEN
MENA AND DEQUEEN. THESE STORMS ARE CAPABLE OF PRODUCING GUSTY WINDS
ALONG WITH HEAVY RAINFALL AND SMALL HAIL AS THEY MOVE TO THE NORTHEAST
AT NEAR 40 MPH.

THESE STORMS WERE PART OF A LARGE AREA OF SHOWERS AND THUNDERSTORMS
OVER THE NORTHWEST HALF OF THE ARKLATEX...TO THE NORTHWEST OF A
LINE FROM PINE BLUFF AND EL DORADO ARKANSAS TO SHREVEPORT ON TO
LUFKIN TEXAS. ANOTHER BAND OF THUNDERSTORMS WITHIN THIS AREA
WAS INDICATED FROM BETWEEN FORT SMITH ARKANSAS AND MCALESTER
OKLAHOMA TO GREENVILLE AND WACO TEXAS.

INDIVIDUAL THUNDERSTORMS WERE MOVING NORTHEAST AT 30 TO 35 MILES AN
HOUR WHILE THE OVERALL SYSTEM CONTINUED TO MOVE EAST AT 20 TO 25
MILES AN HOUR.

THE POTENTIAL FOR SEVERE THUNDERSTORM DEVELOPMENT CONTINUES OVER
NORTWESTERN SECTIONS OF THE ARKLATEX EARLY THIS AFTERNOON...AND
OVER THE REMAINDER OF THE AREA LATER THIS AFTERNOON THROUGH TONIGHT.
ALSO...THE POTENTIAL EXISTS FOR HEAVY RAINFALL IN THE ARKLATEX
THROUGH TONIGHT AND A FLASH FLOOD WATCH REMAINED IN EFFECT FOR
ARKANSAS THROUGH TONIGHT.
Special weather statement, Apr 5, 1:56 PM CDT, 2 hours 49 minutes before
OKZ076-077-049-053-TXZ095-097-TXZ106>112-TXZ124>126-136>138-149>153-
166-167-ARZ050>053-ARZ059>061-ARZ066-ARZ070>073-LAZ001>027-052000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
155 PM CDT TUE APR 5 1994

      ...TORNADO WATCH IN EFFECT FOR THE ARKLATEX UNTIL 800 PM...

AT 150 PM...THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT INDICATED
A 140 MILE WIDE AREA OF NUMEROUS SHOWERS AND THUNDERSTORMS THROUGHOUT
MUCH OF THE ARKLATEX REGION AND ADJACENT AREAS OF SOUTHEAST OKLAHOMA.
THE LEADING EDGE OF THE SHOWER AND THUNDERSTORM AREA EXTENDED FROM
CAMDEN AND EL DORADO ARKANSAS TO WINNFIELD LOUISIANA TO NEWTON TEXAS
IN LOWER TOLEDO BEND COUNTRY.

STRONGER THUNDERSTORMS WITHIN THE RAIN AREA WERE INDICATED NEAR MINDEN
AND LOGANSPORT LOUISIANA AND NEAR CENTER TEXAS.  THESE THUNDERSTORMS
WILL PRODUCE STRONG GUSTY WINDS AND BRIEF HEAVY RAINS.

THE OVERALL AREA OF SHOWERS AND THUNDERSTORMS CONTINUES TO MOVE EAST
AT 20 TO 25 MILES AN HOUR WHILE INDIVIDUAL THUNDERSTORM CELLS WERE
MOVING NORTHEAST AT NEAR 35 MILES AN HOUR.

THE THREAT OF SEVERE WEATHER AND HEAVY RAINFALL WILL CONTINUE THROUGH-
OUT THIS AFTERNOON AND EARLY EVENING ACROSS THE ARKLATEX.  HEAVY RAINS
MAY LIKELY CAUSE SOME MINOR URBAN FLOODING OF LOW LYING AND POOR
DRAINAGE AREAS.  ARKLATEX RESIDENTS SHOULD KEEP A SHARP EYE ON THE
WEATHER TODAY AS THE ATMOSPHERE IS VERY UNSTABLE.

AN UPPER LEVEL LOW SYSTEM IS EXPECTED TO TEAM UP IN COMBINATION WITH A
STRONG COLD FRONT TO PRODUCE SEVERE WEATHER THIS AFTERNOON.  FOR
EXAMPLE...TEMPERATURES BEHIND THE COLD FRONT AT MCALESTER OKLAHOMA HAD
DROPPED INTO THE 40S.

FINALLY A FLASH FLOOD WATCH REMAINS IN EFFECT FOR ARKANSAS.
Special weather statement, Apr 5, 2:32 PM CDT, 2 hours 13 minutes before
OKZ076-077-049-053-TXZ095-097-TXZ106>112-TXZ124>126-136>138-149>153-
166-167-ARZ050>053-ARZ059>061-ARZ066-ARZ070>073-LAZ001>027-052030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
230 PM CDT TUE APR 5 1994

      ...TORNADO WATCH IN EFFECT FOR THE ARKLATEX UNTIL 800 PM...

THE THREAT OF SEVERE WEATHER HAD INCREASED ACROSS THE ARKLATEX THIS
AFTERNOON AS BANDS OF SHOWERS AND STRONG THUNDERSTORMS SPREAD EAST
ACROSS THE AREA AND INCREASE IN INTENSITY. SHREVEPORT WEATHER RADAR
INDICATED ONE BROKEN BAND OF THUNDERSTORMS FROM NEAR LAKE PROVIDENCE
AND JENA LOUISIANA TO NEAR DERIDDER LOUISIANA. THIS BAND OF STORMS
HAS SHOWN NO INTENSIFICATION DURING THE PAST HOUR. ANOTHER BAND OF
SHOWERS AND THUNDERSTORMS WAS INDICATED FROM NEAR EL DORADO ARKANSAS
TO ARCADIA LOUSIANA TO NEAR RINGGOLD LOUISIANA TO CONVERSE LOUISIANA
ACROSS TOLEDO BEND LAKE TO NEAR HEMPHILL TEXAS. STRONG THUNDERSTORMS
WITHIN THIS BAND WERE INDICATED NEAR BERNICE LOUISIANA...NEAR LAKE
BISTINEAU AND NEAR CONVERSE LOUISIANA. THESE STORMS HAD INCREASED
DURING THE PAST HOUR. ANOTHER BAND OF SHOWERS AND THUNDERSTORMS WAS
INDICATED FROM EL DORADO ARKANSAS THROUGH SHREVEPORT ACROSS UPPER
TOLEDO BEND LAKE TO NEAR HUNTSVILLE TEXAS. THE STORMS FROM SOUTH
OF SHREVEPORT TO UPPER TOLEDO BEND LAKE IN THIS BAND WERE INCREASING.
TO THE WEST...A BAND OF SHOWERS AND INCREASING THUNDERSTORMS WAS
INDICATED JUST AHEAD OF A COLD FRONT FROM NORTHWEST OF DEKALB TEXAS
TO TYLER AND JACKSONVILLE TEXAS. STORMS WITHIN THE BAND OVER NORTHWEST
BOWIE COUNTY WEST OF DEKALB AND NEAR CLARKSVILLE HAD INTENSIFIED
DURING THE PAST HOUR.

MOVEMENT OF THUNDERSTORMS WAS TO THE NORTHEAST AT NEAR 30 MPH.

ALTHOUGH NO SEVERE WEATHER WAS INDICATED AT 225 PM...PERSONS IN THE
ARKLATEX SHOULD BE ADVISED THAT SEVERE THUNDERSTORMS MAY DEVELOP
RAPIDLY THIS AFTERNOON AND EVENING. ALONG WITH THE THREAT OF LARGE
HAIL AND DAMAGING WINDS...TORNADOES ARE POSSIBLE. IN ADDITION...
HEAVY RRAINFALL THAT MAY RESULT IN LOW AREA FLOODING IS ALSO POSSIBLE.
A FLASH FLOOD WATCH REMAINS IN EFFECT FOR ARKANSAS THROUGH TONIGHT.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 2:47 PM CDTSevere Thunderstorm WarningSHVBossier, Caddo58 min
Apr 5, 2:47 PM CDTSevere Thunderstorm WarningSHVDe Soto58 min
Apr 5, 4:29 PM CDTSevere Thunderstorm WarningSHVCaddo76 min
Apr 5, 4:59 PM CDTSevere Thunderstorm WarningSHVBossier91 min
Apr 5, 4:59 PM CDTSevere Thunderstorm WarningSHVDe Soto91 min
Apr 5, 3:50 PM CDTSevere Thunderstorm WarningSHVPanola, Rusk60 min
Apr 5, 4:29 PM CDTSevere Thunderstorm WarningSHVShelby76 min
Apr 5, 3:34 PM CDTSevere Thunderstorm WarningSHVHoward, Pike, Sevier56 min
Apr 5, 6:30 PM CDTSevere Thunderstorm WarningSHVColumbia, Nevada60 min

Nearby

Severe Thunderstorm Warnings in Texas, 1994Every severe thunderstorm warning in 1994

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.