Alert archive / Texas / Flash Flood Warnings in 1986
Flash Flood Warning 21, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at Jun 27, 1986, 5:20 AM CDT for De Soto Parish, Louisiana; Panola County, Shelby County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 27, 1986, 5:20 AM CDT (10:20 UTC)
- Expired
- Jun 27, 1986, 8:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties De Soto Parish, LA, Panola County, TX, Shelby County, TX
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 00:00Z, 10.3 hours before the alert went out and 64 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
- 76 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 695 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 77 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 271024 FFWSHV TXC419-365-315-LAC017-015-031-119-271330- BULLETIN...EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 520 AM CDT FRI JUN 27 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 830 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES/PARISHES IN NORTHEAST TEXAS...SHELBY...EASTERN PANOLA AND EASTERN MARION AND THE EASTERN HALF OF HARRISON. IN NORTHWEST LOUISIANA...CADDO..BOSSIER INCLUDING THE SHREVEPORT/BOSSIER CITY METROPOLITAN AREA...DESOTO AND WEBSTER AT 520 AM CDT THE NATIONAL WEATHER SERVICE RADAR CONTINUES TO INDICATE WIDESPREAD RAIN AND SHOWERS ALONG WITH SCATTERED HEAVY THUNDERSTORMS ACROSS THE WARNED AREA. INDICATIONS ARE SINCE MIDNIGHT FROM TWO TO OVER FIVE INCHES OF RAIN HAS FALLEN...AND SOME SPOTS WILL EXCEED SIX INCHES BY DAWN. LOW AREA FLOODING WILL CONTINUE AND INCREASE OVER PARTS OF THE AREA INCLUDING THE SHREVEPORT METROPOLITAN AREA. MANY STREETS AND UNDERPASSES ARE FLOODED AND WILL BECOME IMPASSABLE ...OVERFLOW WILL TAKE PLACE IN LOW SPOTS ON SOME OF THE MAJOR HIGHWAYS. MOTORISTS ARE URGED NOT TO DRIVE THROUGH FLOODED ROADWAYS. SMALL STREAMS ARE ON THE RISE AND WILL FLOOD IHN THE WARNED AREA THIS MORNING AFFECTING RESIDENTS IN LOW LYING AREAS.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 2:30 AM CDT | Flash Flood Warning | SHV | Caddo, De Soto | 4 hr |
| Jun 27, 2:30 AM CDT | Flash Flood Warning | SHV | Bossier | 4 hr |
| Jun 27, 5:20 AM CDT | Flash Flood Warning | SHV | Bossier, Webster | 3 hr |
| Jun 27, 5:20 AM CDT | Flash Flood Warning | SHV | Caddo | 3 hr |
| Jun 27, 8:15 AM CDT | Flash Flood Warning | SHV | Caddo | 15 hr |
| Jun 27, 8:15 AM CDT | Flash Flood Warning | SHV | Bossier, Webster | 15 hr |
| Jun 27, 8:15 AM CDT | Flash Flood Warning | SHV | De Soto | 15 hr |
| Jun 26, 9:20 PM CDT | Flash Flood Warning | SHV | Panola | 3 hr |
| Jun 27, 4:40 AM CDT | Flash Flood Warning | SHV | Harrison | 4 hr |
| Jun 27, 7:30 AM CDT | Flash Flood Warning | SHV | Cass | 4 hr |
| Jun 27, 8:15 AM CDT | Flash Flood Warning | SHV | Bowie | 15 hr |
Nearby
Flash Flood Warnings in Texas, 1986Flash Flood Warnings in Louisiana, 1986Every flash flood warning in 1986
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.