Alert archive / Virginia / Flash Flood Warnings in 2001
Flash Flood Warning 46, NWS Baltimore/Washington
NWS Baltimore/Washington issued this flash flood warning at Aug 12, 2001, 5:36 PM EDT for Culpeper County, Madison County, Virginia. It was in force for 114 min. 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
- Aug 12, 2001, 5:36 PM EDT (21:36 UTC)
- Expired
- Aug 12, 2001, 7:30 PM EDT
- In force
- 114 min
- Issued by
- NWS Baltimore/Washington
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Culpeper County, VA, Madison County, VA
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 9.6 hours before the alert went out and 73 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
- 1033 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 508 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KLWX 122139 FFWLWX VAC047-113-122330- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON 536 PM EDT SUN AUG 12 2001 THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A * FLASH FLOOD WARNING FOR... CULPEPER COUNTY IN NORTHERN VIRGINIA MADISON COUNTY IN NORTHWEST VIRGINIA * UNTIL 730 PM EDT * AT 531 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL OVER MADISON AND CULPEPER COUNTIES FROM CARDOVA TO 10 MILES SOUTHWEST OF CRIGLERSVILLE...MOVING EAST NORTHEAST AT 20 MPH. TORRENTIAL RAINFALL AT THE RATE OF 2 INCHES OR MORE WILL CAUSE FLASH FLOODING IN THESE COUNTIES. THIS IS ON TOP OF HEAVY RAINS RECEIVED YESTERDAY SO THAT THE GROUND IS ALREADY SATURATED AND STREAMS RUNNING HIGH. ANY ADDITIONAL RAIN CAN CAUSE FLOODING. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...OTHER POOR DRAINAGE OR LOW LYING AREAS. IF WATER IS FLOWING ACROSS A ROADWAY TURN YOUR VEHICLE AROUND AND FIND AN ALTERNATE ROUTE. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. LAT...LON 3857 7804 3841 7844 3852 7786 3858 7789 $$ JLW/ABW
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 Baltimore/Washington wrote its last area forecast discussion before this flash flood warning went out at Aug 12, 3:15 PM EDT, 2 hours 21 minutes earlier.
Area forecast discussion, Aug 12, 3:15 PM EDT, 2 hours 21 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 315 PM EDT SUN AUG 12 2001 12Z GUIDNC INDICATE ONE MORE PERIOD OF A POTENTIAL FLASH FLOOD SITU ACRS THE CWA FOR THE OVRNGT PERIOD. THE AREA WL RMN IN THE TROPICAL-LIKE AIR MASS OVRNGT INTO ELY MON IN ADVANCE OF THE CDFNT WHICH IS FCST TO MOVE SLOLY ACRS THE CWA DURING MON. HENCE WL KEEP FFA IN EFFECT ACRS THE BOARD OVRNGT THRU 12Z MON. THERE HAVE BEEN NO REPORTS OF ANY FLOODING ACRS THE CWA TDA. TWO FACTORS HAVE SAVED THE DAY SO FAR...PERSISTENT CLDINS AND THE ACTIVITY THAT HAS DVLPD SO FAR HAS BEEN MVG STEADILY ALG. THIS MAY CONTINUE OVRNGT BUT THE APPROACH OF THE CDFNT ALONG WITH INCRSG UPR DYNAMICS DICTATES STRONGER ACTVTY FOR THE OVRNGT PD. BEYOND THE MON PERIOD THE EVOLVING PTTN WUD SUGGEST A DRYING OUT ALONG WITH NORMAL OR SLTLY BELO TEMPS UNTIL THE APPRCH OF THE NEXT CDFNT DURING FRI. OTW THATS IT FOR NOW...NEXT TIME. FCSTID = 13...PAP DCA 73 85 68 85 / 60 40 30 20 BWI 73 85 68 85 / 60 40 30 20 MRB 70 85 63 83 / 60 30 30 20 IAD 73 85 68 85 / 60 40 30 20 CHO 73 85 68 85 / 60 40 30 20 HGR 70 85 63 83 / 60 30 30 20 NHK 73 85 68 85 / 60 40 30 20 W99 66 80 59 80 / 60 30 20 10 .LWX... DC...FLASH FLOOD WATCH FOR TONIGHT FOR ZONE DCZ001. MD...FLASH FLOOD WATCH FOR TONIGHT FOR ZONES MDZ002>007...MDZ009>011...MDZ013>014...MDZ016>018. VA...FLASH FLOOD WATCH FOR TONIGHT FOR ZONES VAZ021...VAZ025>031...VAZ036>042...VAZ050>057. WV...FLASH FLOOD WATCH FOR TONIGHT FOR ZONES WVZ048>055.
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 6:14 PM EDT | Flash Flood Warning | LWX | Greene, Rockingham | 106 min |
Nearby
Flash Flood Warnings in Virginia, 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.