Alert archive / Texas / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 21, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 1, 1991, 8:48 AM CST for Jefferson County, Orange County, Texas. It was in force for 57 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 1, 1991, 8:48 AM CST (14:48 UTC)
- Expired
- Mar 1, 1991, 9:45 AM CST
- In force
- 57 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
Counties Jefferson County, TX, Orange County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 1, 9:00 AM CST | Hail 1 | Jefferson, TX |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 2.8 hours before the alert went out and 81 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
- 564 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 657 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 215 m²/s²
- 0-3 km storm-relative helicity
- 385 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 5.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBPT 011448 SVRBPT TXC245-361-011545- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PORT ARTHUR TX 848 AM CST FRI MAR 1 1991 THE NATIONAL WEATHER SERVICE IN PORT ARTHUR HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 945 AM CST FOR PERSONS IN THE FOLLOWING COUNTIES IN SOUTHEAST TEXAS ...JEFFERSON COUNTY...ORANGE COUNTY AT 0845 CST...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM IN NORTHERN JEFFERSON COUNTY MOVGING EAST NEAR 35 MPH. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. NNNN
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, Mar 1, 3:25 AM CST, 5 hours 23 minutes before
LAZ005-006-007-008-011-012-011030- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 325 AM CST FRI MAR 1 1991 AT 325 AM...THUNDERSTORMS WITH VERY HEAVY RAIN WERE SHOWN EAST AND JUST WEST OF DE RIDDER. THE BEAUREGARD PARISH SHERIFFS OFFICE REPORTED SOME FLOODING OF STREETS AND LOW LYING AREAS DUE TO THE VERY HEAVY RAIN. OTHERWISE SHOWERS AND THUNDERSTORMS COVERED MUCH OF CENTRAL AND SOUTHWEST LOUISIANA...AND A SMALL PART OF EAST AND SOUTHEAST TEXAS. SHOWERS AND THUNDERSTORMS WERE ALSO SHOWN OVER THE COASTAL WATERS TO 80 MILES OFFSHORE BETWEEN FREEPORT TEXAS AND VERMILION BAY. MOVEMENT WAS NORTHEAST AT 35 MPH.
Special weather statement, Mar 1, 4:38 AM CST, 4 hours 10 minutes before
LAZ005-006-007-008-011-012-011145- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 425 AM CST FRI MAR 1 1991 ...A TORNADO WATCH IS IN EFFECT FOR CENTRAL AND SOUTHWEST LOUISIANA UNTIL 10 AM THIS MORNING... AT 425 AM...THUNDERSTORMS WITH VERY HEAVY RAIN WERE OVER SOUTHERN RAPIDES PARISH...AND OVER THE GULF 30 MILES SOUTHWEST OF PECAN ISLAND AND 25 MILES EAST OF GALVESTON. THESE THUNDERSTORMS WERE PART OF A LARGER AREA OF THUNDERSTORMS AND RAIN THAT COVERED MUCH CENTRAL AND SOUTHWEST LOUISIANA AND THE COASTAL AREA OF THE UPPER TEXAS COAST. THIS AREA EXTENDED OVER THE GULF TO OVER 125 MILES BETWEEN FREEPORT TEXAS AND ATCHAFALAYA BAY. MOVEMENT WAS NORTHEAST AT 35 MILES AN HOUR.
Special weather statement, Mar 1, 5:46 AM CST, 3 hours 2 minutes before
LAZ005-006-007-008-011-012-011245- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 545 AM CST FRI MAR 1 1991 ...A TORNADO WATCH IS IN EFFECT FOR CENTRAL AND SOUTHWEST LOUISIANA UNTIL 10 AM THIS MORNING... ...A SPECIAL MARINE WARNING IS IN EFFECT FROM SABINE PASS TO WHITE LAKE UNTIL 7 AM THIS MORNING... AT 525 AM...THUNDERSTORMS WITH VERY HEAVY RAIN WERE SHOWN FROM BETWEEN BATON ROUGE AND WHITE LAKE...IN THE COASTAL WATERS FROM GALVESTON TO CAMERON ...AND NEAR ATCHAFALAYA BAY. AREAS OF RAIN MIXED WITH SHOWERS AND THUNDERSTORMS WERE OCCURRING BETWEEN NATHCHEZ MISSISSIPPI...DE RIDDER...AND MANSFIELD...FROM BETWEEN BATON ROUGE AND CROWLEY TO ALONG THE COAST FROM WHITE LAKE TO VERMILION BAY... AND OVER MUCH OF SOUTHEAST TEXAS SOUTH OF A HUNTVILLE AND KIRBYVILLE LINE TO THE COAST FROM FROM GALVESTON TO CAMERON. . RAIN AND THUNDERSTORMS WERE ALSO OCCURRING IN THE GULF OUT TO 100 MILES OFFSHORE FbROM GALVESTON TO CAMERON TO ATCHAFALAYA BAY. MOVEMENT WAS NORTHEAST AT 35 MPH.
Special weather statement, Mar 1, 7:49 AM CST, 59 minutes before
LAZ005-006-007-008-011-012-011445- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 745 AM CST FRI MAR 1 1991 ...A TORNADO WATCH IS IN EFFECT FOR CENTRAL AND SOUTHERN LOUISIANA UNTIL 12 NOON TODAY... ...NO WARNINGS ARE CURRENTLY IN EFFECT AT THIS TIME... AT 725 AM...THUNDERSTORMS WITH VERY HEAVY RAIN WERE LOCATED 15 MILES WEST OF ALEXANDRIA...FROM VILLE PLATTE TO JUST EAST OF CROWLEY. AND AT ABBEVILLE. ELSEWHERE WIDESPREAD RAIN SHOWERS AND THUNDERSTORMS CONTINUED OVER A LARGE PORTION OF LOUISIANA AND SOUTHEAST TEXAS. THIS AREA OF PRECIPITATION WAS GENERALLY SOUTH AND EAST OF A LINE FROM HOUSTON TO LOGANSPORT TO MONROE. RAIN AND THUNDERSTORMS WERE; ALSO OCCURING OVER THE GULF FROM GALVESTON TO 80 MILES SOUTH OF CAMERON TO THE ATCHAFALAYA BAY. MOVEMENT WAS TO THE NORTHEAST AT 35 MILES AN HOUR.
Nearby
Severe Thunderstorm Warnings in Texas, 1991Every severe thunderstorm warning in 1991
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.