Alert archive / Texas / Flash Flood Warnings in 1999
Flash Flood Warning 33, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at Jan 29, 1999, 11:29 PM CST for Marion County, Texas. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 29, 1999, 11:29 PM CST (05:29 UTC)
- Expired
- Jan 30, 1999, 3:30 AM CST
- In force
- 4 hr
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Marion County, TX
The radar
The Shreveport radar (KSHV), 62 km from the middle of the area, began a volume at 05:29 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 5.5 hours before the alert went out and 317 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
- 1341 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 535 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 184 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 5.8
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.
NWS Shreveport, LA wrote its last area forecast discussion before this flash flood warning went out at Jan 29, 3:15 PM CST, 8 hours 14 minutes earlier.
Area forecast discussion, Jan 29, 3:15 PM CST, 8 hours 14 minutes before
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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 |
|---|---|---|---|---|
| Jan 29, 7:23 PM CST | Severe Thunderstorm Warning | SHV | Smith | 62 min |
| Jan 29, 8:05 PM CST | Severe Thunderstorm Warning | SHV | Cherokee | 30 min |
| Jan 29, 8:27 PM CST | Severe Thunderstorm Warning | SHV | Smith | 48 min |
| Jan 29, 8:35 PM CST | Severe Thunderstorm Warning | SHV | Gregg | 65 min |
| Jan 29, 9:12 PM CST | Flash Flood Warning | SHV | Gregg, Smith | 4 hr |
| Jan 29, 11:29 PM CST | Flash Flood Warning | SHV | Bowie, Cass | 4 hr |
| Jan 30, 5:07 AM CST | Severe Thunderstorm Warning | SHV | Panola | 48 min |
| Jan 29, 9:34 PM CST | Flash Flood Warning | SHV | Bienville, Red River | 4 hr |
| Jan 30, 6:00 AM CST | Severe Thunderstorm Warning | SHV | Bossier | 45 min |
Nearby
Flash Flood Warnings in Texas, 1999Every flash flood warning in 1999
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; radar from the NEXRAD Level II archive.