Alert archive / Louisiana / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 15, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Feb 3, 1990, 8:58 AM CST for Claiborne Parish, Louisiana. It was in force for 62 min.
The area
The counties it named.
The facts
- Issued
- Feb 3, 1990, 8:58 AM CST (14:58 UTC)
- Expired
- Feb 3, 1990, 10:00 AM CST
- In force
- 62 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Claiborne 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
Jackson, MS (KJAN), launched 12:00Z, 3.0 hours before the alert went out and 279 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
- 152 J/kg
- Mixed-layer CIN
- -112 J/kg
- Mixed-layer LCL
- 676 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 218 m²/s²
- 0-3 km storm-relative helicity
- 314 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
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, Feb 3, 3:01 AM CST, 5 hours 57 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002-003- 004-005-006-031000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 300 AM CST SAT FEB 3 1990 ...A TORNADO WATCH IS IN EFFECT FOR NORTHWEST LOUISIANA AND SOUTH CENTRAL AND SOUTHWEST ARKANSAS UNTIL 9 AM... ...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED TO SPREAD NORTHEAST ACROSS NORTHEAST TEXAS..SOUTHWEST ARKANSAS..AND NORTHWEST LOUISIANA... AT 255 AM CST THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED SCATTERED SHOWERS AND THUNDERSTORMS THAT EXTENDED NORTHWEST OF A LINE FROM NEAR CROSSETT ARKANSAS TO NEAR RUSTON LOUISIANA TO NEAR LUFKIN TEXAS. THE RAIN EXTENDED INTO EXTREME SOUTHEAST OKLAHOMA. MOVEMENT WAS NORTHEAST NEAR 30 MILE PER HOUR. STRONG THUNDERSTORMS WERE NOTED NORTH OF MAGNOLIA ARKANSAS...FROM NEAR SIBLEY LOUISIANA TO 10 MILES SOUTHEAST OF SHREVEPORT...10 MILES WEST OF SHREVEPORT...AND NORTH OF TEXARKANA. THE STRONG THUNTDERSTORMS WERE PRODUCING STRONG GUSTY WINDS...PEA TO MARBLE SIZE HAIL...FREQUENT LIGHTNING AND HEAVY RAINS THAT WILL CAUSE LOW AREA AND URBAN FLOODING.
Special weather statement, Feb 3, 4:25 AM CST, 4 hours 33 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002-003- 004-005-006-031130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 420 AM CST SAT FEB 3 1990 ...A TORNADO WATCH IS IN EFFECT FOR NORTHWEST LOUISIANA..SOUTH CENTRAL AND SOUTHWEST ARKANSAS UNTIL 9 AM... ...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED TO SPREAD NORTHEAST ACROSS NORTHEAST TEXAS..SOUTHWEST ARKANSAS..AND NORTHWEST LOUISIANA... AT 415 AM CST THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED SCATTERED SHOWERS AND THUNDERSTORMS IN A 60 MILE WIDE BAND THAT EXTENDED FROM NEAR PINE BLUFF ARKANSAS ACROSS SHREVEPORT LOUISIANA TO NEAR COLLEGE STATION TEXAS. ANOTHER 20 MILE WIDE BAND OF SHOWERS AND THUNDERSTORMS WAS LOCATED FROM NEAR LONE STAR TEXAS TO SOUTHWEST OF PALESTINE TEXAS. ALSO ISOLATED THUNDERSTORMS WERE NOTED NEAR HUGO OKLAHOMA. . MOVEMENT WAS NORTHEAST NEAR 30 MPH. THE STRONGEST STORMS WERE LOCATED 15 MILES SOUTHEAST OF SHREVEPORT... WEST OF BENTON...SOUTH OF SPRINGHILL LOUISIANA AND SOUTH OF CAMDEN ARKANSAS. THE STRONG THUNDERSTORMS WERE PRODUCING STRONG GUSTY WINDS...PEA TO MARBLE SIZE HAIL...FREQUENT LIGHTNING AND HEAVY RAINS THAT WILL CAUSE LOW AREA AND URBAN FLOODING. RAINFALL AMOUNTS IN BOSSIER AND WEBSTER PARISHES AND IN COLUMBIA COUNTY ARKANSAS ARE LIKELY IN THE ONE TO TWO 1/2 INCH RANGE. SOME FLOODING PROBLEMS WILL LIKELY DEVELOP AS ADDITIONAL RAIN FALLS.
Special weather statement, Feb 3, 5:56 AM CST, 3 hours 2 minutes before
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 2, 6:31 PM CST | Severe Thunderstorm Warning | SHV | Caddo | 59 min |
| Feb 2, 7:55 PM CST | Tornado Warning | SHV | Morehouse | 50 min |
| Feb 3, 1:46 AM CST | Severe Thunderstorm Warning | SHV | Webster | 59 min |
| Feb 3, 1:59 AM CST | Tornado Warning | SHV | Claiborne, Webster | 46 min |
| Feb 3, 5:30 AM CST | Flash Flood Warning | SHV | Webster | 3 hr |
| Feb 3, 5:30 AM CST | Flash Flood Warning | SHV | Bossier | 3 hr |
| Feb 3, 1:14 PM CST | Severe Thunderstorm Warning | SHV | Madison | 61 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.