Alert archive / Texas / Flash Flood Warnings in 1990
Flash Flood Warning 52, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at May 30, 1990, 8:07 PM CDT for Harrison County, Marion County, Rusk County, Texas. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- May 30, 1990, 8:07 PM CDT (01:07 UTC)
- Expired
- May 30, 1990, 10:15 PM CDT
- In force
- 2 hr
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties Harrison County, TX, Marion County, TX, Rusk 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, 1.1 hours before the alert went out and 18 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
- 3079 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 745 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 214 m²/s²
- 0-3 km storm-relative helicity
- 326 m²/s²
- Significant tornado parameter
- 4.9
- Supercell composite
- 24.2
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 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, May 30, 4:44 PM CDT, 3 hours 23 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-310000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 445 PM CDT WED MAY 30 1990 ...TORNADO WATCH IN EFFECT UNTIL 10 PM FOR SOUTHEAST OKLAHOMA AND EXTREME NORTHEAST TEXAS... ...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUE OVER SOUTH ARKANSAS AND ARE DEVELOPING OVER SOUTHEAST OKLAHOMA AND EAST TEXAS... AT 440 PM WEATHER SERVICE RADAR SHOWED SCATTERED SHOWERS AND A FEW THUNDERSTORMS OVER SOUTH ARKANSAS NORTH OF A LINE FROM TEXARKANA TO EL DORADO. ALSO WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WERE DEVELOPING OVER SOUTHEAST OKLAHOMA AND EAST TEXAS. MOVEMENT WAS TO THE NORTHEAST AT 35 MPH. SOME OF THESE STORMS MAY BECOME SEVERE THIS EVENING AND TONIGHT OVER THE NORTHWEST PART OF THE ARKALTEX AND PRODUCE HEAVY RAIN..HAIL.. STRONG GUSTY WINDS AND POSSIBLY TORNADOES. PERSONS SHOULD STAY TUNED TO RADIO..TELEVISION OR NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 7:09 PM CDT | Tornado Warning | SHV | Panola, Rusk | 66 min |
| May 30, 8:07 PM CDT | Flash Flood Warning | SHV | Panola | 2 hr |
| May 30, 8:07 PM CDT | Tornado Warning | SHV | Harrison, Marion, Panola, Rusk | 96 min |
| May 30, 9:56 PM CDT | Flash Flood Warning | SHV | Gregg, Harrison, Rusk | 4 hr |
| May 30, 9:56 PM CDT | Flash Flood Warning | SHV | Marion | 4 hr |
| May 30, 9:56 PM CDT | Flash Flood Warning | SHV | Panola | 4 hr |
| May 31, 1:11 AM CDT | Severe Thunderstorm Warning | SHV | Panola | 64 min |
| May 31, 11:15 AM CDT | Flash Flood Warning | SHV | Panola, Rusk, Shelby | 4 hr |
| May 31, 1:45 PM CDT | Flash Flood Warning | SHV | Gregg, Harrison | 3 hr |
| May 31, 3:00 PM CDT | Flash Flood Warning | SHV | Harrison, Panola, Rusk, Shelby | 4 hr |
| May 31, 3:00 PM CDT | Flash Flood Warning | SHV | Gregg | 4 hr |
Nearby
Flash Flood Warnings in Texas, 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.