Alert archive / Louisiana / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 331, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Aug 20, 1994, 8:51 PM CDT for Claiborne Parish, Lincoln Parish, Union Parish, Louisiana. It was in force for 69 min.
The area
The counties it named.
The facts
- Issued
- Aug 20, 1994, 8:51 PM CDT (01:51 UTC)
- Expired
- Aug 20, 1994, 10:00 PM CDT
- In force
- 69 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties Claiborne Parish, LA, Lincoln Parish, LA, Union Parish, LA
The nearest sounding before it
Longview/Gregg, TX (KGGG), launched 00:00Z, 1.9 hours before the alert went out and 186 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.
- Mixed-layer CAPE
- 1666 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1398 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSHV 210155 RRA SVRSHV LAC027-081-111-061-210300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 851 PM CDT SAT AUG 20 1994 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST LOUISIANA ...CLAIBORNE PARISH...RED RIVER PARISH...UNION PARISH ...LINCOLN PARISH... AT 850 PM...WEATHER SERVICE RADARS IN SHREVEPORT AND LONGVIEW TEXAS SHOWED A LINE OF STRONG TO SEVERE THUNDERSTORMS THAT EXTENDED FROM EL DORADO ARKANSAS TO HOMER TO ARCADIA TO 10 MILES NORTHWEST OF COUSHATTA ALL IN NORTHWEST LOUISIANA. THE STORMS CONTINUED TO MOVE SOUTHEAST AT 35 MILES AN HOUR. THE MAIN THREAT FROM THE STORMS WILL BE HIGH WINDS TO 60 MPH WHICH WILL LIKELY RESULT IN TREE LIMB AND POWER LINE DAMAGE ALONG WITH VERY HEAVY RAINS AND FREQUENT DEADLY LIGHTNING.
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, Aug 20, 4:10 PM CDT, 4 hours 41 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>026-202230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 410 PM CDT SAT AUG 20 1994 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHWEST ARKANSAS... NORTHWEST LOUISIANA...NORTHEAST TEXAS AND SOUTHEAST OKLAHOMA... ...STRONG TO SEVERE THUNDERSTORMS CONTINUED TO DEVELOP ALONG THE RED RIVER IN SOUTHEAST OKLAHOMA AND NORTHEAST TEXAS... AT 400 PM...THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A 40 MILE WIDE AREA OF STRONG THUNDERSTORMS IN THE RED RIVER VALLEY THAT EXTENDED FROM NEAR BROKEN BOW OKLAHOMA TO NEAR PARIS TEXAS. STRONG TO SEVERE THUNDERSTORMS WERE INDICATED IN THE PARIS TEXAS VICINITY. ALSO VERY STRONG THUNDERSTORMS PRODUCING HEAVY RAINS... FREQUENT DEADLY LIGHTNING AND GUSTY WINDS WERE NOTED IN THE IDABEL OKLAHOMA VICINITY. THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST- SOUTHEAST AT 25 TO 30 MPH. . RADAR ALSO SHOWED DEVELOPING THUNDERSTORMS OVER SOUTHWEST ARKANSAS THAT EXTENDED FROM FORDYCE TO THE LOUISIANA-ARKANSAS BORDER REGION NORTH OF PLAIN DEALING LOUISIANA. THE STRONGEST STORMS WERE INDICATED NEAR MCNEIL...NEAR CANFIELD...AND 15 MILES EAST OF MAGNOLIA IN ARKANSAS. THESE THUNDERSTORMS WERE MOVING EAST AT 25 TO 30 MPH. THE POTENTIAL FOR SEVERE THUNDERSTORM DEVELOPMENT CONTINUES THIS AFTERNOON AND EVENING OVER PRIMARILY THE NORTHWEST HALF OF THE ARKLATEX REGION AS A COLD FRONT APPROACHES THE AREA FROM THE NORTHWEST. PERSONS ENGAGING IN OUTDOOR ACTIVITIES THIS AFTERNOON AND EVENING SHOULD BE WARY OF RAPIDLY CHANGING WEATHER CONDITIONS AND BE PREPARED TO SEEK A PLACE OF SAFETY IF NECESSARY. A SEVERE THUNDERSTORM WATCH CONTINUED IN EFFECT FOR A LARGE PART OF THE ARKLATEX UNTIL 800 PM THIS EVENING.
Special weather statement, Aug 20, 5:00 PM CDT, 3 hours 51 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>026-202330- SPECIAL WEATHER STATEMENT...CORRECTED GRAMMAR... NATIONAL WEATHER SERVICE SHREVEPORT LA 500 PM CDT SAT AUG 20 1994 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHWEST ARKANSAS... NORTHWEST LOUISIANA...NORTHEAST TEXAS AND SOUTHEAST OKLAHOMA... AT 455 PM...THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED TWO BANDS OF VERY STRONG THUNDERSTORMS SPREADING EAST SOUTHEAST ACROSS NORTH SECTIONS OF THE ARKLATEX. THESE STORMS WILL CONTINUE TO SPREAD EAST SOUTHEAST ACROSS THE NORTH HALF OF THE ARKLATEX THIS EVENING AND THE REMAINDER OF THE REGION TONIGHT. THE MAIN THREAT FROM THESE STORMS WILL BE HIGH WINDS AND WITH TREES IN FULL FOLLIAGE...THERE WILL LIKELY BE TREE DAMAGE WITH SOME STORMS. HEAVY RAIN...FREQUENT LIGHTNING AND ISOLATED HAIL WILL LIKELY OCCUR AS WELL. AT 455 PM RADAR SHOWED A BAND OF SHOWERS AND THUNDERSTORMS FROM SOUTH- EAST OF WARREN TO APPROACHING EL DORADO IN ARKANSAS TO APPROACHING SPRING HILL IN LOUISIANA. VERY STRONG THUNDERSTORMS WERE INDICATED NEAR EL DORADO TO NEAR SPRINGHILL LOUISIANA. THE AREA OF STORMS WAS MOVING EAST SOUTHEAST AT 25 MILES AN HOUR. ANOTHER BAND OF SHOWERS AND THUNDERSTORMS WERE INDICATED FROM NEAR GLENWOOD ARKANSAS TO THE SOUTHEAST TIP OF OKLAHOMA NEAR TOM TO NEAR WINNSBORO AND COOPER IN NORTHEAST TEXAS. VERY STRONG THUNDERSTORMS WERE INDICATED NEAR TOM OKLAHOMA AND NEAR TALCO TEXAS. THESE STORMS WERE MOVING SOUTHEAST AT 30 MPH.
Special weather statement, Aug 20, 5:01 PM CDT, 3 hours 50 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>026-202330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 500 PM CDT SAT AUG 20 1994 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHWEST ARKANSAS... NORTHWEST LOUISIANA...NORTHEAST TEXAS AND SOUTHEAST OKLAHOMA... AT 455 PM...THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED TWO BANDS OF VERY STRONG THUNDERSTORMS SPREADING EAST SOUTHEAST ACROSS NORTH SECTIONS OF THE ARKLATEX. THESE STORMS WILL CONTINUE TO SPREAD EAST SOUTHEAST ACROSS THE NORTH HALF OF THE ARKLATEX THIS EVENING AND THE REMAINDER OF THE REGION TONIGHT. THE MAIN THREAT FROM THESE STORMS WILL BE HIGH WINDS AND WITH TREES IN FULL FOLLIAGE...THERE WILL LIKELY BE TREE DAMAGE WITH THE HIGH WINDS. HEAVY RAIN...FREQUENT LIGHTNING ISOLATED HAIL WILL LIKELY OCCUR AS WELL. AT 455 PM RADAR SHOWED A BAND OF SHOWERS AND THUNDERSTORMS FROM SOUTH- EAST OF WARREN TO APPROACHING EL DORADO IN ARKANSAS TO APPROACHING SPRING HILL IN LOUISIANA. VERY STRONG THUNDERSTORMS WERE INDICATED NEAR EL DORADO TO NEAR SPRINGHILL LOUISIANA. THE AREA OF STORMS WERE MOVING EAST SOUTHEAST AT 25 MILES AN HOUR. ANOTHER BAND OF SHOWERS AND THUNDERSTORMS WERE INDICATED FROM NEAR GLENWOOD ARKANSAS TO THE SOUTHEAST TIP OF OKLAHOMA NEAR TOM TO NEAR WINNSBORO AND COOPER IN NORTHEAST TEXAS. VERY STRONG THUNDERSTORMS WERE INDICATED NEAR TOM OKLZAHOMA AND NEAR TALCO TEXAS. THESE STORMS WERE MOVING SOUTHEAST AT 30 MPH.
Special weather statement, Aug 20, 5:07 PM CDT, 3 hours 44 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>026-202330- SPECIAL WEATHER STATEMENT...CORRECTED GRAMMAR... NATIONAL WEATHER SERVICE SHREVEPORT LA 500 PM CDT SAT AUG 20 1994 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHWEST ARKANSAS... NORTHWEST LOUISIANA...NORTHEAST TEXAS AND SOUTHEAST OKLAHOMA... AT 455 PM...THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED TWO BANDS OF VERY STRONG THUNDERSTORMS SPREADING EAST SOUTHEAST ACROSS NORTH SECTIONS OF THE ARKLATEX. THESE STORMS WILL CONTINUE TO SPREAD EAST SOUTHEAST ACROSS THE NORTH HALF OF THE ARKLATEX THIS EVENING AND THE REMAINDER OF THE REGION TONIGHT. THE MAIN THREAT FROM THESE STORMS WILL BE HIGH WINDS AND WITH TREES IN FULL FOLLIAGE...THERE WILL LIKELY BE TREE DAMAGE WITH SOME STORMS. HEAVY RAIN...FREQUENT LIGHTNING AND ISOLATED HAIL WILL LIKELY OCCUR AS WELL. AT 455 PM RADAR SHOWED A BAND OF SHOWERS AND THUNDERSTORMS FROM SOUTH- EAST OF WARREN TO APPROACHING EL DORADO IN ARKANSAS TO APPROACHING SPRING HILL IN LOUISIANA. VERY STRONG THUNDERSTORMS WERE INDICATED NEAR EL DORADO TO NEAR SPRINGHILL LOUISIANA. THE AREA OF STORMS WAS MOVING EAST SOUTHEAST AT 25 MILES AN HOUR. ANOTHER BAND OF SHOWERS AND THUNDERSTORMS WERE INDICATED FROM NEAR GLENWOOD ARKANSAS TO THE SOUTHEAST TIP OF OKLAHOMA NEAR TOM TO NEAR WINNSBORO AND COOPER IN NORTHEAST TEXAS. VERY STRONG THUNDERSTORMS jWERE INDICATED NEAR TOM OKLAHOMA AND NEAR TALCO TEXAS. THESE STORMS WERE MOVING SOUTHEAST AT 30 MPH.
Local storm report, Aug 20, 8:30 PM CDT, 21 minutes before
STORM REPORTS
NATIONAL WEATHER SERVICE SHREVEPORT LA
830 PM CDT SAT AUG 20 1994
STORM REPORT FOR SATURDAY AUGUST 20 1994
TIME CDT PARISH/COUNTY/STATE EVENT/LOCATION
620 PM CASS TX SHERIFF`S OFFICE REPORTED 60-70 MPH WINDS....
TREES DOWNED...ROOF DAMAGE IN LINDEN.
625 PM CASS TX AVINGER...SEVERAL TREES DOWN AND POWER OUT
WITH MINOR ROOF DAMAGE DUE TO FALLING TREES.
630 PM CASS TX MARIETTA...HIGH WINDS OF 56 MPH CAUSED TREE
LIMB DAMAGE.
632 PM MARION TX HIGH WINDS AT KELLYVILLE WITH A FEW TREES
DOWN NORTH OF KELLYVILLE. SEVERAL LIMBS DOWN
ON ROADS BETWEEN KELLYVILLE AND JEFFERSON.
640 PM MARION TX HIGH WINDS DOWNED A FEW TREES AND DAMAGED A
FEW ANTENNAE SOUTH SHORE LAKE O PINES.
658 PM MARION TX HIGH WINDS BLEW DOWN SEVERAL TREES EAST OF
JEFFERSON.
710 PM CASS TX HIGH WINDS OF 60 TO 70 MPH DOWNED SEVERAL
TREES IN MC LEAD.
712 PM HARRISON TX HIGH WINDS IN THE KARNACK AREA DOWNED SEVERAL
TREES NEAR THE ENTRANCE TO CADDO STATE PARK.
715 PM MARION TX 50 TO 60 MPH WINDS ESTIMATED AT GRAY AND
SEVERAL LARGE TREE LIMBS BLOWN OFF AT
SMITHLAND.
720 PM HARRISON TX SKYWARN OBSERVER ESTIMATED 60 MPH WITH PEA
SIZE HAIL.
735 PM CADDO LA 40 TO 50 MPH WINDS AT OIL CITY AND VERY HEAVY
RAIN.
742 PM CADDO LA POWER OUTAGES IN NORTH HIGHLAND AREA IN NORTH
PART OF SHREVEPORT.
742 PM CADDO LA SEVERAL TREES DOWNED NEAR DIXIE.
755 PM CADDO LA WIND GUST TO 62 MPH AT JUNCTION OF US71 AND
HIGHWAY 1 NEAR TRINTY HEIGHTS SCHOOL OR 3
MILES NORTH OF DOWNTOWN AIRPORT.
800 PM CADDO LA 55 MPH WIND REPORTED AT DOWNTOWN AIRPORT.
810 PM BOSSIER LA WIND GUSTS TO 50 MPH AT LA DOWNS.
810 PM BOSSIER LA TREES DOWNED 2 MILES SOUTH OF BENTON ON LA 3.Local storm report, Aug 20, 8:38 PM CDT, 13 minutes before
STORM REPORTS
NATIONAL WEATHER SERVICE SHREVEPORT LA
830 PM CDT SAT AUG 20 1994
STORM REPORT FOR SATURDAY AUGUST 20 1994
TIME CDT PARISH/COUNTY/STATE EVENT/LOCATION
620 PM CASS TX SHERIFF`S OFFICE REPORTED 60-70 MPH WINDS....
TREES DOWNED...ROOF DAMAGE IN LINDEN.
625 PM CASS TX AVINGER...SEVERAL TREES DOWN AND POWER OUT
WITH MINOR ROOF DAMAGE DUE TO FALLING TREES.
630 PM CASS TX MARIETTA...HIGH WINDS OF 56 MPH CAUSED TREE
LIMB DAMAGE.
632 PM MARION TX HIGH WINDS AT KELLYVILLE WITH A FEW TREES
DOWN NORTH OF KELLYVILLE. SEVERAL LIMBS DOWN
ON ROADS BETWEEN KELLYVILLE AND JEFFERSON.
640 PM MARION TX HIGH WINDS DOWNED A FEW TREES AND DAMAGED A
FEW ANTENNAE SOUTH SHORE LAKE O PINES.
658 PM MARION TX HIGH WINDS BLEW DOWN SEVERAL TREES EAST OF
JEFFERSON.
710 PM CASS TX HIGH WINDS OF 60 TO 70 MPH DOWNED SEVERAL
TREES IN MC LEAD.
712 PM HARRISON TX HIGH WINDS IN THE KARNACK AREA DOWNED SEVERAL
TREES NEAR THE ENTRANCE TO CADDO STATE PARK.
715 PM MARION TX 50 TO 60 MPH WINDS ESTIMATED AT GRAY AND
SEVERAL LARGE TREE LIMBS BLOWN OFF AT
SMITHLAND.
720 PM HARRISON TX SKYWARN OBSERVER ESTIMATED 60 MPH WITH PEA
SIZE HAIL.
735 PM CADDO LA 40 TO 50 MPH WINDS AT OIL CITY AND VERY HEAVY
RAIN.
742 PM CADDO LA POWER OUTAGES IN NORTH HIGHLAND AREA IN NORTH
PART OF SHREVEPORT.
742 PM CADDO LA SEVERAL TREES DOWNED NEAR DIXIE.
755 PM CADDO LA WIND GUST TO 62 MPH AT JUNCTION OF US71 AND
HIGHWAY 1 NEAR TRINTY HEIGHTS SCHOOL OR 3
MILES NORTH OF DOWNTOWN AIRPORT.
800 PM CADDO LA 55 MPH WIND REPORTED AT DOWNTOWN AIRPORT.
810 PM BOSSIER LA WIND GUSTS TO 50 MPH AT LA DOWNS.
810 PM BOSSIER LA TREES DOWNED 2 MILES SOUTH OF BENTON ON LA 3.The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 7:35 PM CDT | Severe Thunderstorm Warning | SHV | Bossier, Caddo | 85 min |
| Aug 20, 7:45 PM CDT | Severe Thunderstorm Warning | SHV | Richland | 45 min |
| Aug 20, 8:38 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Webster | 67 min |
| Aug 20, 8:51 PM CDT | Severe Thunderstorm Warning | SHV | Red River | 69 min |
| Aug 20, 9:32 PM CDT | Severe Thunderstorm Warning | SHV | De Soto | 58 min |
| Aug 20, 9:32 PM CDT | Severe Thunderstorm Warning | SHV | Natchitoches | 58 min |
| Aug 20, 9:32 PM CDT | Severe Thunderstorm Warning | SHV | Jackson | 58 min |
| Aug 20, 10:00 PM CDT | Severe Thunderstorm Warning | SHV | Winn | 75 min |
| Aug 20, 10:00 PM CDT | Severe Thunderstorm Warning | SHV | Red River | 75 min |
| Aug 20, 10:25 PM CDT | Severe Thunderstorm Warning | SHV | De Soto | 50 min |
| Aug 20, 10:25 PM CDT | Severe Thunderstorm Warning | SHV | Natchitoches, Sabine | 65 min |
| Aug 20, 10:48 PM CDT | Severe Thunderstorm Warning | SHV | Ouachita | 27 min |
| Aug 20, 10:48 PM CDT | Severe Thunderstorm Warning | SHV | Caldwell, Richland | 57 min |
| Aug 20, 11:26 PM CDT | Severe Thunderstorm Warning | SHV | Franklin, Madison, Tensas | 64 min |
| Aug 21, 3:23 AM CDT | Flash Flood Warning | SHV | Caldwell, Franklin | 3 hr |
Nearby
Severe Thunderstorm Warnings in Louisiana, 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.