Alert archive / Virginia / Flash Flood Warnings in 1992
Flash Flood Warning 39, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at May 17, 1992, 1:10 AM EDT for Patrick County, Virginia. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 17, 1992, 1:10 AM EDT (05:10 UTC)
- Expired
- May 17, 1992, 4:15 AM EDT
- In force
- 3 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Whole counties
County Patrick County, VA
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 5.2 hours before the alert went out and 75 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
- 465 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1460 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 20 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 KROA 170512 FFWROA VAC141-170815- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ROANOKE VA 110 AM EDT SUN MAY 17 1992 THE NATIONAL WEATHER SERVICE IN ROANOKE VAHAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 415 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL VIRGINIA ...PATRICK COUNTY SHERIFF OFFICE REPORTED FLOODING OF ROADS AND STREAMS ARE OUT OF THEIR BANKS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
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 16, 11:12 PM EDT, 1 hour 58 minutes before
VAZ008-009-170415- SPECIAL WEATHER STATMENT NATIONAL WEATHER SERVICE ROANOKE VA 1109 PM EDT SAT MAY 16 1992 ...THUNDERSTORM PRODUCING HEAVY RAINS ALONG THE EASTERN SLOPES OF THE BLUE RIDGE... AT 1105 PM EDT...WEATHER RADAR DETECTS A LONE THUNDERSTORM OVER SOUTHWEST FRANKLIN COUNTY NEAR FERRUM. THIS IS THE STORM PRESENTLY CAUSING HEAVY RAINS...2.21 INCHES OF RAINFALL SINCE 930 PM AT THE FERRUM IFLOWS GAUGE. THE STORM HAS INDICATED A WEAKENING TREND THE PAST HALF HOUR. THIS THUNDERSTORM IS MOVING SLOWLY TOWARD THE SOUTHEAST AND WILL BE AFFECTING THE PHILPOT RESERVOIR BY 1130 PM. IF DRIVING THIS EVENING NEAR CREEKS IN STREAMS IN SOUTHERN FRANKLIN COUNTY...NEVER TRY TO DRIVE THROUGHT ANY FLOODED ROADWAY. ALSO...IN THUNDERSTORMS TAKE SHELTER FROM DANGEROUS LIGHTNING AND AVOID USING THE PHONE. END/DOC
Special weather statement, May 17, 12:51 AM EDT, 19 minutes before
VAZ008-009-170630- SPECIAL WEATHER STATMENT NATIONAL WEATHER SERVICE ROANOKE VA 1245 AM EDT SUN MAY 17 1992 ...THUNDERSTORM PRODUCING HEAVY RAINS OVER PATRICK COUNTY IN SOUTHWEST PIEDMONT.. AT 1230 AM EDT...WEATHER RADAR DETECTS A THUNDERSTORM OVER PATRICK COUNTY IN THE STUART AREA. THIS STORM HAS PRODUCED 1.80 INCHES OF RAIN IN ONE HOUR PERIOD. NO FLOODING HAS BEEN REPORTED AT THIS TIME. PEOPLE NEAR CREEK AND FLOOD PRONE AREAS ARE ADVISEDn TO MONITOR WATER LEVEL AND BE PREPARED TO MOVE TO HIGHER GROUND IF FLOODING DOES OCCUR. CG
Nearby
Flash Flood Warnings in Virginia, 1992Every flash flood warning in 1992
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.