Alert archive / Louisiana / Flash Flood Warnings in 1990
Flash Flood Warning 91, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at Sep 9, 1990, 6:59 PM CDT for Union Parish, Louisiana. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Sep 9, 1990, 6:59 PM CDT (23:59 UTC)
- Expired
- Sep 9, 1990, 11:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Union 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
Longview/Gregg, TX (KGGG), launched 12:00Z, 12.0 hours before the alert went out and 215 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 0 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- -5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 flash flood 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, Sep 9, 1:51 PM CDT, 5 hours 8 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-DDTTTT- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 150 PM CDT SUN SEP 9 1990 SHOWERS AND STRONG THUNDERSTORMS OVER EASTERN TEXAS AT 145 PM SHREVEPORT WEATHER RADAR SHOWED A STRONG THUNDERSTORM ABOUT 12 MILES SOUTHEAST OF CENTER TEXAS MOVING TO THE EAST NEAR 15 MPH. THIS THUNDERSTORM HAS INCREASED CONSIDERABLY OVER THE PAST HOUR AND WILL LIKELY PRODUCE HEAVY RAINFALL AMOUNTS...FREQUENT LIGHTNING... STRONG GUSTY WINDS AND POSSIBLE HAIL DURING THE NEXT HOUR OR SO. THIS THUNDERSTORM WAS PART OF A BAND OF RAIN ALONG WITH SCATTERED SHOWERS AND THUNDERSTORMS FROM WEST OF A PARIS...TYLER...PALESTINE LINE EASTWARD ACROSS NORTHEAST TEXAS INTO NORTHWEST LOUISIANA. SHOWERS AND THUNDERSTORMS WILL CONTINUE TO AFFECT PORTIONS OF NORTHEAST TEXAS...EXTREME SOUTHWEST ARKANSAS AND NORTHERN LOUISIANA THIS AFTERNOON INTO TONIGHT. SOME OF THE STRONGER THUNDERSTORMS WILL PRODUCE HEAVY RAINFALL...FREQUENT LIGHTNING...STRONG WINDS AND HAIL.
Special weather statement, Sep 9, 5:17 PM CDT, 1 hour 42 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-100135- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 515 PM CDT SUN SEP 9 1990 ...SHOWERS AND THUNDERSTORMS..SOME PRODUCING VERY HEAVY RAINS..OVER EAST CENTRAL TEXAS AND ACROSS WEST CENTRAL AND CENTRAL LOUISIANA... AT 505 PM CDT WEATHER SERVICE RADARS IN LONGVIEW AND SHREVEPORT SHOWED AN AREA OF SHOWERS AND THUNDERSTORMS OVER EAST CENTRAL TEXAS AND WEST CENTRAL AND CENTRAL LOUISIANA. THE AREA WAS GENERALLY SOUTH OF A LINE FROM NEAR LUFKIN EAST TO NEAR HEMPHILL TEXAS ACROSS LOWER TOLEDO BEND LAKE INTO LOUISIANA TO NEAR FLORIEN..ALEXANDRIA..AND JENA. ALONG THE LEADING OR NORTHERN EDGE..SHOWERS AND THUNDERSTORMS..SOME PRODUCING VERY HEAVY RAINFALL..WERE NOTED NEAR FLORIEN..15 MILES SOUTHWEST OF CYPRESS..AND 15 MILES SOUTHEAST OF CYPRESS LOUISIANA. THE SHOWERS AND THUNDERSTORMS WERE MOVING TO THE NORTH AT 15 MPH AND THE STRONGER STORMS WERE PROUDCING VERY HEAVY RAINS..FREQUENT AND DANGEROUS LIGHTNING ..AND GUSTY WINDS. . RADARS ALSO SHOWED AN AREA OF RAIN AND SHOWERS OVER NORTHEAST TEXAS FROM NEAR LONE STAR..LONGVIEW..AND APPLEBY WEST INTO NORTH CENTAL TEXAS AND WIDELY SCATTERED SHOWERS AND THUNDERSTORMS FROM NEAR BOSSIER CITY AND MANSFIELD EAST TO NEAR JONESBORO AND COLUMBIA. THESE RAIN..SHOWERS..AND ISOLATED THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 10 MPH.
Special weather statement, Sep 9, 6:35 PM CDT, 24 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-100135- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 630 PM CDT SUN SEP 9 1990 ...SHOWERS AND THUNDERSTORMS..SOME PRODUCING VERY HEAVY RAINS..CONTINUE OVER EAST CENTRAL TEXAS EAST ACROSS WEST CENTRAL..CENTRAL..AND INTO EAST LOUISIANA... AT 620 PM CDT WEATHER SERVICE RADAR IN SHREVEPORT SHOWED AN AREA OF SHOWERS AND THUNDERSTORMS..SOME PRODUCING VERY HEAVY RAINS..OVER EAST CENTRAL TEXAS EAST ACROSS WEST CENTRAL..CENTRAL.AND INTO EAST LOUISIANA. THE AREA EXTENDED FROM NEAR VICKSBURG MISSISSIPPI SOUTHWEST TO NEAR WINNSBORO..COLFAX..MANY..AND ZWOLLE LOUISIANA AND INTO EAST TEXAS TO NEAR CENTER AND RUSK. THE STRONGER THUNDERSTORMS WITHIN THE AREA WERE NOTED NEAR WISNER..WINNSBORO..AND GRETNA. THE SHOWERS AND THUNDERSTORMS WERE MOVING TO THE NORTH AT 15 MPH AND THE STRONGER STORMS WERE PROUDCING VERY HEAVY RAINS..FREQUENT AND DANGEROUS LIGHTNING..GUSTY WINDS AND POSSIBLY SOME HAIL. . RADAR ALSO SHOWED A SMALLER AREA OF SHOWERS AND STRONG THUNDERSTORMS FROM NEAR COUSHATTA EAST TO NEAR CAMPTI LOUISIANA AND ISOLATED THUNDERSTORMS NEAR JONESBORO AND CHATHAM LOUISIANA MOVING TO THE NORTHEAST AT 15 MPH. IN EAST TEXAS RADAR SHOWED AN AREA OF RAIN AND SHOWERS FROM NEAR LONGVIEW AND CARTHAGE NORTH TO NEAR LINDEN AND KILDARE AND ANOTHER FROM NEAR ATHENS NORTH TO NEAR QUITMAN AND WINNSBORO TEXAS. THE RAIN AND SHOWERS WERE MOVIVNG TO THE NORTHEAST AT 15 MPH.
Special weather statement, Sep 9, 6:43 PM CDT, 16 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-100135- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 630 PM CDT SUN SEP 9 1990 ...SHOWERS AND THUNDERSTORMS..SOME PRODUCING VERY HEAVY RAINS..CONTINUE OVER EAST CENTRAL TEXAS EAST ACROSS WEST CENTRAL..CENTRAL..AND INTO EAST LOUISIANA... AT 620 PM CDT WEATHER SERVICE RADAR IN SHREVEPORT SHOWED AN AREA OF SHOWERS AND THUNDERSTORMS..SOME PRODUCING VERY HEAVY RAINS..OVER EAST CENTRAL TEXAS EAST ACROSS WEST CENTRAL..CENTRAL.AND INTO EAST LOUISIANA. THE AREA EXTENDED FROM NEAR VICKSBURG MISSISSIPPI SOUTHWEST TO NEAR WINNSBORO..COLFAX..MANY..AND ZWOLLE LOUISIANA AND INTO EAST TEXAS TO NEAR CENTER AND RUSK. THE STRONGER THUNDERSTORMS WITHIN THE AREA WERE NOTED NEAR WISNER..WINNSBORO..AND GRETNA LOUISIANA. THE SHOWERS AND THUNDERSTORMS WERE MOVING TO THE NORTH AT 15 MPH AND THE STRONGER STORMS WERE PROUDCING VERY HEAVY RAINS..FREQUENT AND DANGEROUS LIGHTNING..GUSTY WINDS AND POSSIBLY SOME HAIL. . RADAR ALSO SHOWED A SMALLER AREA OF SHOWERS AND STRONG THUNDERSTORMS FROM NEAR COUSHATTA EAST TO NEAR CAMPTI LOUISIANA AND ISOLATED THUNDERSTORMS NEAR JONESBORO AND CHATHAM LOUISIANA MOVING TO THE NORTHEAST AT 15 MPH. IN EAST TEXAS RADAR SHOWED AN AREA OF RAIN AND SHOWERS FROM NEAR LONGVIEW AND CARTHAGE NORTH TO NEAR LINDEN AND KILDARE AND ANOTHER FROM NEAR ATHENS NORTH TO NEAR QUITMAN AND WINNSBORO TEXAS. THE RAIN AND SHOWERSi WERE MOVING TO THE NORTHEAST AT 15 MPH.
Nearby
Flash Flood Warnings in Louisiana, 1990Every flash flood 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.