Alert archive / Virginia / Flash Flood Warnings in 1999
Flash Flood Warning 46, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Sep 30, 1999, 12:42 AM EDT for Buckingham County, Virginia. It was in force for 5 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
- Sep 30, 1999, 12:42 AM EDT (04:42 UTC)
- Expired
- Sep 30, 1999, 5:35 AM EDT
- In force
- 5 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Whole counties
County Buckingham County, VA
The radar
The Norfolk radar (KAKQ), 150 km from the middle of the area, began a volume at 04:41 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
Roanoke, VA (KRNK), launched 00:00Z, 4.7 hours before the alert went out and 95 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
- 191 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 720 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 200 m²/s²
- 0-3 km storm-relative helicity
- 241 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KROA 300441 FFWRNK VAC029-300935- BULLETIN--IMMEDIATE BROADCAST REQUESTED FLOOD WARNING FOR SMALL CREEKS AND STREAMS NATIONAL WEATHER SERVICE BLACKSBURG VA 1242 AM EDT THU SEP 30 1999 THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A * FLOOD WARNING FOR SMALL CREEKS AND STREAMS FOR... BUCKINGHAM COUNTY IN CENTRAL VIRGINIA. * UNTIL 535 AM EDT. * AT 1230 AM... AREA LAW ENFORCEMENT INDICATED THAT STREAMS WERE BEGINNING TO COME OUT OF THEIR BANKS. * TWO TO THREE INCHES OF RAIN HAS FALLEN OVER THE COUNTY THIS EVENING...AND HAS RESULTED IN SHARP RISES ON AREA STREAMS. * THE HEAVY RAIN WILL END BY 3:00 AM. HOWEVER...CONTINUED RUNOFF WILL RESULT IN THE FLOODING OF SMALL STREAMS THROUGH ABOUT 5:00 AM. << CALL TO ACTION >> BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGER OF FLOODING. .END/PM
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 Blacksburg, VA wrote its last area forecast discussion before this flash flood warning went out at Sep 29, 9:50 PM EDT, 2 hours 52 minutes earlier.
Area forecast discussion, Sep 29, 9:50 PM EDT, 2 hours 52 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BLACKSBURG VA 950 PM EDT WED SEP 29 1999 ...WIND EXPAND WIND ADVISORY TO INCLUDE FOOTHILL COUNTIES.... BUSY EVENING WITH TORNADOES...SEVERE AND FLOODING. KFCX SHOWING LAST SIGNIFICANT LINE OF TSRA/SHRA FROM EKN SW TO MT AIRY IN SURRY COUNTY NC...RIGHT ALONG FRONTAL BOUNDARY. -SHRA BEHIND THIS WILL LIKELY GET HUNG IN THE MOUNTAINS WITH THE NORTHWEST FLOW BEHIND THE FRONT AND DOWNSLOPING. AT 9 PM FRONT WAS LOCATED FROM EAST OF LWB TO HLX TO AROUND WILKESBORO. SO FAR WIND GUSTS BEHIND THE FRONT NOT TERRIBLY IMPRESSIVE IN THE LOWLANDS WITH SUSTAINED WINDS IN THE 10 TO 20 MPH RANGE WITH GUSTS TO 25 MPH. HIGHER ELEVATIONS THOUGH (GEV) IN THE 20S...WITH GUSTS TO 35 MPH. WITH STRONG CAA AIDING MIXING BEHIND THE FRONT...EXPECT TO SEE CRITERIA MET AT LEAST IN THE HIGHER TOWNS AND LOCATIONS INTO THURSDAY MORNING...SO WIND ADVISORY TO REMAIN IN PLACE. WITH STRONG CAA...ABUNDANT LOW LEVEL RH...AND UPSLOPE IN THE WEST WILL KEEP SKIES CLOUDY AND KEEP POPS FOR LIGHT SHOWERS THROUGH THE REMAINDER OF THE NIGHT. EAST OF THE BLUE RIDGE...DOWNSLOPING WILL CLEAR THINGS OUT QUICKLY BEHIND THE FRONT DURING THE PREDAWN HOURS. LINEAR EXTRAPOLATION OF H8 TEMPS AND MINS FROM THIS MORNING SUPPORT CURRENT LOWS...AND PERHAPS EVEN A BIT LOWER IN THE WEST. LOWS IN THE EAST ON TRACK. HAVE A GOOD ONE. .RNK VA...WIND ADVISORY FOR AREAS ALONG AND WEST OF BLUE RIDGE LATE TONIGHT AND THURSDAY MORNING AND FOR HIGHER ELEVATIONS OF THE FOOTHILLS. WV...WIND ADVISORY FOR SE WV LATE TONIGHT AND THURSDAY MORNING. NC...WIND ADVISORY FOR NRN MTNS AND HIGHER ELEVATIONS OF THE FOOTHILLS LATE TONIGHT AND THURSDAY MORNING. NOGUEIRA
In the hours before
Local storm report, Sep 29, 8:08 PM EDT, 4 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VIRGINIA
808 PM EDT WED SEP 29 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0730 PM LYNCHBURG VA FLOODING
09/29/99 CAMPBELL SEVERAL ROADS CLOSED DUE
TO HIGH
WATER...HOLLINSVILLE
RD...GRAVESMILL RD...
FOREST BROOK RD...OLD
GRAVES MILL RD...MAYFLOWER
DRIVE.Local storm report, Sep 29, 8:50 PM EDT, 3 hours 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VIRGINIA
850 PM EDT WED SEP 29 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0630 PM MT AIRY NC TORNADO
09/29/99 SURRY 25-30 HOMES DAMAGED. 1
DESTROYED MOBILE HOME, 1
DAMAGED MOBILE HOME, 1
WOOD STRUCTURE HOME VERY
DAMAGED...ATTACHED CARPORT
DESTROYED AND FELL ON 4
CARS. STRIPPED EXTERNAL
PANEL OFF OF HOUSE. DEBRIS
FROM 3 HOMES FOUND 2
MILES AWAY FROM SOURCE.
TWISTED POWER POLES.
PMCLocal storm report, Sep 29, 8:50 PM EDT, 3 hours 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VIRGINIA
850 PM EDT WED SEP 29 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0630 PM MT AIRY NC TORNADO
09/29/99 SURRY 25-30 HOMES DAMAGED. 1
DESTROYED MOBILE HOME, 1
DAMAGED MOBILE HOME, 1
WOOD STRUCTURE HOME VERY
DAMAGED...ATTACHED CARPORT
DESTROYED AND FELL ON 4
CARS. STRIPPED EXTERNAL
PANEL OFF OF HOUSE. DEBRIS
FROM 3 HOMES FOUND 2
MILES AWAY FROM SOURCE.
TWISTED POWER POLES.
PMCLocal storm report, Sep 29, 9:10 PM EDT, 3 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VIRGINIA
910 PM EDT WED SEP 29 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0630 PM WHITE SULPHUR SPGS WV WIND DAMAGE
09/29/99 GREENBRIER POWER LINES AND TREES
DOWN. TREES UPROOTED. A
LOT OF DEBRIS.
PMCLocal storm report, Sep 29, 9:10 PM EDT, 3 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VIRGINIA
910 PM EDT WED SEP 29 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0630 PM WHITE SULPHUR SPGS WV WIND DAMAGE
09/29/99 GREENBRIER POWER LINES AND TREES
DOWN. TREES UPROOTED. A
LOT OF DEBRIS.
PMCLocal storm report, Sep 29, 10:50 PM EDT, 1 hour 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VIRGINIA
1050 PM EDT WED SEP 29 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0600 PM AMHERST VA FLOODING
09/29/99 AMHERST MOST DAMS IN STAGE 2 FLOOD
CONDITION...ISACK WALTON
DAM METIONED AS ONE. SVRL
ROADS WASHED AWAY IN PINEY
RIVER AREA.
0600 PM AMHERST VA FLOODING
09/29/99 AMHERST TWO LAKES CRESTED AND OVER
SPILLWAY IN SWEETBRIAR
COLLEGE. FLAT CREEK ROAD
WASHED AWAY. WOODSEN RD
FLOODED. ALL REPORTS FROM
EMERG MNGR.
PMCThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 29, 9:20 PM EDT | Flash Flood Warning | RNK | Amherst | 3 hr |
| Sep 29, 10:30 PM EDT | Flash Flood Warning | RNK | Amherst | 6 hr |
| Sep 29, 11:42 PM EDT | Flash Flood Warning | RNK | Pittsylvania | 4 hr |
| Sep 30, 12:20 AM EDT | Flash Flood Warning | RNK | Appomattox | 4 hr |
Nearby
Flash Flood Warnings in Virginia, 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.