Alert archive / Virginia / Flash Flood Warnings in 1989
Flash Flood Warning 26, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Sep 15, 1989, 11:18 PM EDT for Franklin County, Virginia. It was in force for 117 min.
The area
The counties it named.
The facts
- Issued
- Sep 15, 1989, 11:18 PM EDT (03:18 UTC)
- Expired
- Sep 16, 1989, 1:15 AM EDT
- In force
- 117 min
- Issued by
- NWS Blacksburg, VA
- Area
- Whole counties
County Franklin County, VA
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
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 3.3 hours before the alert went out and 101 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
- 2040 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 941 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 27 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 15, 9:28 PM EDT, 1 hour 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROANOKE VA
925 PM EDT FRI SEP 15 1989
...HEAVY RAIN IN THE MOUNTAINS OF SOUTHWESTERN VIRGINIA..
AT 9 PM EDT RADAR SHOWED A LINE OF THUNDERSTORMS WITH HEAVY RAIN
OVER THE COUNTIES OF PATRICK FLOYD AND SOUTHERN MONTGOMERY IN SOUTHWESTERN
VIRGINIA.
THESE STORMS WERE MOVING TO THE NORTH AT 15 MPH.
DUE TO THE SLOW MOVING STORMS..SMALL STREAM FLOODING IS POSSIBLE
ESPECIALLY OVER NORTHEAST PORTION OF PATRICK COUNTY WHERE THE
HEAVIEST RAIN IS FALLING AT THIS TIME.
FLASH FLOOD WATCH REMAIN IN EFFECT FOR TONIGHT FOR EXTREME SOUTH
WESTERN VIRGINIA.
CG
bThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 15, 8:16 PM EDT | Flash Flood Warning | RNK | Carroll | 119 min |
| Sep 15, 10:34 PM EDT | Flash Flood Warning | RNK | Campbell | 116 min |
| Sep 16, 1:08 AM EDT | Flash Flood Warning | RNK | Henry, Pittsylvania | 3 hr |
| Sep 16, 1:08 AM EDT | Flash Flood Warning | RNK | Bedford, Roanoke | 3 hr |
| Sep 16, 11:48 AM EDT | Flash Flood Warning | RNK | Giles, Pulaski | 2 hr |
| Sep 16, 11:48 AM EDT | Flash Flood Warning | RNK | Grayson | 2 hr |
| Sep 16, 1:01 PM EDT | Flash Flood Warning | RNK | Montgomery | 119 min |
| Sep 16, 1:24 PM EDT | Flash Flood Warning | RNK | Roanoke | 2 hr |
Nearby
Flash Flood Warnings in Virginia, 1989Every flash flood warning in 1989
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.