Alert archive / North Carolina / Flash Flood Warnings in 1991
Flash Flood Warning 4, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at May 19, 1991, 12:25 AM EDT for Forsyth County, North Carolina. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 19, 1991, 12:25 AM EDT (04:25 UTC)
- Expired
- May 19, 1991, 3:30 AM EDT
- In force
- 3 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Whole counties
County Forsyth County, NC
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 4.4 hours before the alert went out and 32 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 22 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 KGSO 190425
FFWGSO
NCC067-190730-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENSBORO NC
1225 AM EDT SUN MAY 19 1991
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 330 AM EDT FOR PEOPLE IN THE FOLLOWING COUNTY
IN THE STATE OF NORTH CAROLINA
FORSYTH
AT 1210 AM LAW ENFORCEMENT OFFICIALS IN FORSYTH COUNTY REPORTED
MOBILE HOMES FLOODED OUT ALONG A CREEK AND THE PEOPLE ARE
EVACUATING NEAR THE TOWN OF KERNERSVILLE. WEATHER RADAR SHOWS
THE HEAVIEST RAIN CONCENTRATED OVER FORSYTH COUNTY. SOME THUNDER
IS VERY POSSIBLE IN THIS ACTIVITY. MOVEMENT IS SLOW TO THE
NORTHEAST AT 5 TO 10 MILES AN HOUR.
A FLASH FLOOD WARNING MEANS FLOODING IS OCCURRING OR IS IMMINENT.
PEOPLE IN THE WARNED AREA SHOULD TAKE IMMEDIATE ACTION TO PROTECT
LIFE AND PROPERTY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.
ESCAPE RISING WATER BY MOVING TO HIGHER GROUND.
IF THREATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY. WHEN IT IS SAFE..ASK YOUR NEAREST LAW ENFORCEMENT
AGENCY TO RELAY YOUR SEVERE WEATHER REPORT TO THE LOCAL NATIONAL
WEATHER SERVICE OFFICE.C
GRWhat 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 18, 6:31 PM EDT, 5 hours 54 minutes before
VAZ009-013>014-015-182230- SPECIAL WEATHER STATMENT NATIONAL WEATHER SERVICE ROANOKE VA 630 PM EDT SAT MAY 18 1991 ...THUNDERSTORMS DEVELOPING OVER SOUTHWESTERN VIRGINIA.. AT 625 PM EDT RADAR SHOWED A LINE OF THUNDERSTORMS OVER THE COUNTIES OF EASTERN GILES INTO CRAIG EASTWARD TO SOUTHERN BOTETOURT AND NORTHERN BEDFORD IN SOUTHWESTERN VIRGINIA. THIS LINE OF THUNDERSTORMS WAS MOVING TO THE SOUTH AT 25 MPH. THESE THUNDERSTORMS WILL BE MOVING iINTO THE COUNTIES OF MONTGOMERY ROANOKE AND FRANKLIN IN THE NEXT HOUR OR TWO. PEOPLE IN THE PATH OF THESE STORMS CAN EXPECT HEAVY RAIN DANGEROUS LIGHTNING AND GUSTY WINDS. CG
Special weather statement, May 18, 8:40 PM EDT, 3 hours 45 minutes before
VAZ015-016-190400- SPECIAL WEATHER STATMENT NATIONAL WEATHER SERVICE ROANOKE VA 830 PM EDT SAT MAY 18 1991 ...THUNDERSTORMS OVER THE SOUTHWESTERN MOUNTAINS AND THE NEW RIVER VALLEY... ...FLASH FLOOD IN EFFECT FOR GILES AND BLAND AND ALL COUNTIES WEST IN SOUTHWEST VIRGINIA UNTIL MIDNIGHT TONIGHT... AT 825 PM EDT RADAR SHOWED A AREA OF SHOWERS AND THUNDERSTORMS IN GILES COUNTY IN SOUTHWEST VIRGINIA. RAINFALL OF NEARLY AN INCH HAS FALLEN IN: THE PAST 3 HOURS OVER EASTERN GILES..MORE RAIN IS MOVING INTO THE WATCH AREA AT THIS TIME. PEOPLE LIVING NEAR SMALL STREAMS AND CREEKS ARE ADVISED TO BE ON THE LOOKOUT FOR RAPIDLY RISING WATER. CG
Special weather statement, May 18, 8:43 PM EDT, 3 hours 42 minutes before
VAZ015-016-190400- SPECIAL WEATHER STATMENT NATIONAL WEATHER SERVICE ROANOKE VA 830 PM EDT SAT MAY 18 1991 ...THUNDERSTORMS OVER THE SOUTHWESTERN MOUNTAINS AND THE NEW RIVER VALLEY... ...FLASH FLOOD IN EFFECT FOR GILES AND BLAND AND ALL COUNTIES WEST IN SOUTHWEST VIRGINIA UNTIL MIDNIGHT TONIGHT... AT 825 PM EDT RADAR SHOWED AN AREA OF SHOWERS AND THUNDERSTORMS IN GILES COUNTY IN SOUTHWEST VIRGINIA. RAINFALL OF NEARLY AN INCH HAS FALLEN IGN THE PAST 3 HOURS OVER EASTERN GILES..MORE RAIN IS MOVING INTO THE WATCH AREA AT THIS TIME. PEOPLE LIVING NEAR SMALL STREAMS AND CREEKS ARE ADVISED TO BE ON THE LOOKOUT FOR RAPIDLY RISING WATER. CG
Special weather statement, May 18, 8:48 PM EDT, 3 hours 37 minutes before
VAZ015-016-190400- SPECIAL WEATHER STATMENT..CORRECTION.. NATIONAL WEATHER SERVICE ROANOKE VA 830 PM EDT SAT MAY 18 1991 ...THUNDERSTORMS OVER THE SOUTHWESTERN MOUNTAINS AND THE NEW RIVER VALLEY... ...FLASH FLOOD WATCH IN EFFECT FOR GILES AND BLAND AND ALL COUNTIES WEST IN SOUTHWEST VIRGINIA UNTIL MIDNIGHT TONIGHT... AT 825 PM EDT RADAR SHOWED AN AREA OF SHOWERS AND THUNDERSTORMS IN GILES COUNTY IN SOUTHWEST VIRGINIA. RAINFALL OF NEARNLY AN INCH HAS FALLEN IN THE PAST 3 HOURS OVER EASTERN GILES..MORE RAIN IS MOVING INTO THE WATCH AREA AT THIS TIME. PEOPLE LIVING NEAR SMALL STREAMS AND CREEKS ARE ADVISED TO BE ON THE LOOKOUT FOR RAPIDLY RISING WATER. CG
Nearby
Flash Flood Warnings in North Carolina, 1991Every flash flood warning in 1991
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.