Alert archive / Louisiana / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 37, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at May 12, 1990, 2:45 PM CDT for Grant Parish, LaSalle Parish, Louisiana. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- May 12, 1990, 2:45 PM CDT (19:45 UTC)
- Expired
- May 12, 1990, 3:45 PM CDT
- In force
- 60 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
Counties Grant Parish, LA, LaSalle Parish, LA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 7.8 hours before the alert went out and 187 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
- 1655 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 555 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 280 m²/s²
- 0-3 km storm-relative helicity
- 430 m²/s²
- Significant tornado parameter
- 3.6
- Supercell composite
- 16.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KESF 111955 COR
SVRESF
LAC043-059-122045-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION ADD LASALLE PARISH
NATIONAL WEATHER SERVICE ALEXANDRIA LA
245 PM CDT SAT MAY 12 1990
...CORRECTED EXPIRATION TIME ...
THE NATIONAL WEATHER SERVICE IN ALEXANDRIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 345 AM CDT
FOR PEOPLE IN THE FOLLOWING PARISHES...
IN CENTRAL LOUISIANA
...GRANT
...LASALLE
AT 245 PM CDT NATIONAL WEATHER SERVICE RADARS SHOWED A
SEVERE THUNDERSTORM BETWEEN MONTGOMERY AND GEORGETOWN LA
THIS THUNDERSTORM WILL MOVE ACROSS NORTHERN GRANT AND NORTHERN
LASALLE PARISHES...HEAVY RAIN STRONG WINDS AND HAIL POSSIBLE FROM
THIS THUND_ERSTORM.
BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.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, May 12, 12:17 PM CDT, 2 hours 28 minutes before
TXZ033-047-121815- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PORT ARTHUR TX 1217 PM CDT SAT MAY 12 1990 A TORNADO WATCH CONTINUES FOR MUCH OF EAST TEXAS UNTIL 2PM CDT. NO SEVERE WEATHER HAS BEEN REPORTED IN THE TEXAS PORTION OF THE WATCH AREA SINCE SINCE A SEVERE STORM MOVED ACROSS THE AREA BETWEEN 7 AND 9AM THIS MORNING. AT NOON RADAR SHOWS LIGHT TO MODERATE RAINS MOVING QUICKLY ACROSS THE WATCH AREA AT 45 TO 50 MPH. DUE TO THE FAST MOVEMENT RAINFALL SHOULD BE BRIEF ALTHOUGH IT COULD BECOME HEAVY IF THUNDERSTORMS ONCE AGAIN DEVELOPE. DJ NNNN
Special weather statement, May 12, 12:32 PM CDT, 2 hours 13 minutes before
LAZ005-006-007-008-011-012-121845- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 1235 AM CDT SAT MAY 12 1990 ...A TORNADO WATCH IS IN EFFECT UNTIL 200 PM CDT THAT INCLUDES VERNON PARISH IN SOUTHWEST LOUISIANA AND GRANT...LA SALLE ...AND RAPIDES PARISHES IN CENTRAL LOUISIANA... ...A FLASH FLOOD WATCH IS IN EFFECT FOR VERNON PARISH FOR THIS AFTERNOON AND TONIGHT... AT 1230 AM VERY STRONG THUNDERSTORMS WERE ACROSS CENTRAL AND NORTHERN LOUISIANA AND PART OF EAST TEXAS. THEY WERE GENERALLY NORTH OF AN ALEXANDRIA...LUFKIN TEXAS LINE. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG DAMAGING WINDS...LARGE HAIL...DANGEROUS LIGHTNING... AND VERY HEAVY RAINFALL. MOVEMENT WAS EAST AT 44 MILES AN HOUR.
Special weather statement, May 12, 12:36 PM CDT, 2 hours 9 minutes before
LAZ005-006-007-008-011-012-121845- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 1235 PM CDT SAT MAY 12 1990 ...A TORNADO WATCH IS IN EFFECT UNTIL 200 PM CDT THAT INCLUDES VERNON PARISH IN SOUTHWEST LOUISIANA AND GRANT...LA SALLE ...AND RAPIDES PARISHES IN CENTRAL LOUISIANA... ...A FLASH FLOOD WATCH IS IN EFFECT FOR VERNON PARISH FOR THIS AFTERNOON AND TONIGHT... AT 1230 PM VERY STRONG THUNDERSTORMS WERE ACROSS CENTRAL AND NORTHERN LOUISIANA AND PART OF EAST TEXAS. THEY WERE GENERALLY NORTH OF AN ALEXANDRIA...LUFKIN TEXAS LINE. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG DAMAGING WINDS...LARGE HAIL...DANGEROUS LIGHTNING... AND VERY HEAVY RAINFALL. MOVEMENT WAS EAST AT 45 MILES AN HOUR.
Special weather statement, May 12, 1:37 PM CDT, 1 hour 8 minutes before
LAZ005-006-007-008-011-012-121945- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 135 PM CDT SAT MAY 12 1990 ...A TORNADO WATCH IS IN EFFECT UNTIL 200 PM CDT THAT INCLUDES VERNON PARISH IN SOUTHWEST LOUISIANA AND GRANT...LA SALLE ...AND RAPIDES PARISHES IN CENTRAL LOUISIANA... ...A FLASH FLOOD WATCH IS IN EFFECT FOR VERNON PARISH FOR THIS AFTERNOON AND TONIGHT... AT 130 PM VERY STRONG THUNDERSTORMS WERE ACROSS CENTRAL AND NORTHERN LOUISIANA FROM WINNFIELD TO NEAR SHREVEPORT. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG DAMAGING WINDS...LARGE HAIL...DANGEROUS LIGHTNING AND VERY HEAVY RAINFALL. THESE STORMS WERE PART OF A LARGE AREA O F RAIN AND THUNDERSTORMS NORTH OF A LINE FROM ALEXANDRIA TO DE RIDDER TO GALVESTON TEXAS. MOVEMENT WAS EAST AT 50 MILES AN HOUR.
Special weather statement, May 12, 2:23 PM CDT, 22 minutes before
TXZ033-046-122030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PORT ARTHUR TX 223 PM CDT SAT MAY 12 1990 THE TORNADO WATCH ISSUED EARLIER FOR MUCH OF EAST AND NORTHEAST TEXAS HAS BEEN EXTENDED UNTIL 9PM CDT TONIGHT. NO SEVERE WEATHER HAS BEEN REPORTED IN DEEP EAST TEXAS SINCE THE SEVERE THUNDERSTORM MOVED INTO LOUISIANA AROUND 9AM CDT. AT 220PM CDT RADAR SHOWS A FEW RAIN SHOWERS BETWEEN HOUSTON AND BEAUMONT EXTENDING NORTHWARD INTO THE EAST TEXAS LAKES AREA. SHOWERS WERE MOVING NORTHEAST AT 35 MPH. A FEW STRONGER STORMS WERE DEVELOPING ON THE LOUISIANA SIDE OF LAKE TOLEDO BEND. DJ NNNN
Special weather statement, May 12, 2:32 PM CDT, 13 minutes before
LAZ005-006-007-008-011-012-122040- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 235 PM CDT SAT MAY 12 1990 ...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM CDT THAT INCLUDES VERNON PARISH IN SOUTHWEST LOUISIANA AND GRANT...LA SALLE ...AND RAPIDES PARISHES IN CENTRAL LOUISIANA... ...A FLASH FLOOD WATCH IS IN EFFECT FOR VERNON PARISH FOR THIS AFTERNOON AND TONIGHT... AT 225 PM VERY STRONG THUNDERSTORMS WERE ACROSS CENTRAL LOUISIANA FROM MANY TO WINNFIELD. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG DAMAGING WINDS...LARGE HAIL...DANGEROUS LIGHTNING AND VERY HEAVY RAINFALL. THESE STORMS WERE PART OF A LARGE AREA OF RAIN AND THUNDERSTORMOS WERE SCATTERED ACROSS NORTHERN..CENTRAL AND..AND SOUTHWEST LOUISIANA. MOVEMENT WAS EAST AT 50 MILES AN HOUR.
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 7:00 AM CDT | Severe Thunderstorm Warning | LCH | Grant | 60 min |
| May 12, 10:10 AM CDT | Severe Thunderstorm Warning | LCH | Grant, Rapides | 60 min |
| May 12, 3:50 PM CDT | Severe Thunderstorm Warning | LCH | LaSalle | 60 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 1990Every severe thunderstorm warning in 1990
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.