Alert archive / Texas / Flash Flood Warnings in 2001
Flash Flood Warning 21, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at Jun 7, 2001, 9:57 PM CDT for Nacogdoches County, San Augustine County, Texas. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jun 7, 2001, 9:57 PM CDT (02:57 UTC)
- Expired
- Jun 8, 2001, 4:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
The radar
The Shreveport radar (KSHV), 117 km from the middle of the area, began a volume at 03:01 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
Shreveport, LA (KSHV), launched 00:00Z, 3.0 hours before the alert went out and 124 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
- 894 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 777 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KSHV 080301
FFWSHV
TXC347-405-080900-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
957 PM CDT THU JUN 7 2001
THE NATIONAL WEATHER SERVICE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NACOGDOCHES COUNTY IN EASTERN TEXAS
SAN AUGUSTINE COUNTY IN EASTERN TEXAS
* UNTIL 400 AM CDT
* AT 957 PM CDT...THE SHREVEPORT WEATHER SERVICE DOPPLER RADAR SHOWED
THUNDERSTORMS...PRODUCING VERY HEAVY RAINFALL OF ONE TO TWO INCHES
PER HOUR MOVING OVER NACOGDOCHES COUNTY. THESE THUNDERSTORMS WILL
MOVE OVER THE CITY OF NACOGDOCHES ADDING TO THE ALREADY FLOODED
AREA. THE THUNDERSTORMS WERE MOVING TO THE NORTHWEST AT 20 MPH.
OTHER THUNDERSTORMS WERE MOVING ACROSS SAN AUGUSTINE COUNTY
AFFECTING THE BROADDUS AREA AND WILL PRODUCE FLOODING.
THESE THUNDERSTORMS WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND
STREAMS...URBAN HIGHWAYS AND UNDERPASSES...ALONG WITH COUNTRY
ROADS...AND LOW FARMLAND.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS.
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS
BRIDGES...DIPS...OR OTHER LOW SPOTS...IF WATER COVERS THE ROADWAY.
REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD
WARNING FOR...
NACOGDOCHES COUNTY IN EASTERN TEXAS
SAN AUGUSTINE COUNTY IN EASTERN TEXAS
UNTIL 400 AM CDT.
LAT...LON 3148 9462 3113 9409 3141 9407 3154 9400
3164 9442 3180 9448 3183 9498 3154 9486The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 9:00 PM CDT | Flash Flood Warning | SHV | Sabine | 4 hr |
| Jun 7, 9:15 PM CDT | Flash Flood Warning | SHV | Cherokee | 4 hr |
| Jun 8, 3:36 AM CDT | Flash Flood Warning | SHV | Angelina | 5 hr |
| Jun 8, 5:33 AM CDT | Flash Flood Warning | SHV | Sabine | 4 hr |
| Jun 8, 6:11 AM CDT | Flash Flood Warning | SHV | Nacogdoches | 4 hr |
| Jun 8, 6:51 AM CDT | Flash Flood Warning | SHV | San Augustine | 4 hr |
Nearby
Flash Flood Warnings in Texas, 2001Every flash flood warning in 2001
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.