Alert archive / Virginia / Flash Flood Warnings in 2000
Flash Flood Warning 5, NWS Baltimore/Washington
NWS Baltimore/Washington issued this flash flood warning at Jun 25, 2000, 11:48 PM EDT for Montgomery County, Maryland; Fauquier County, Loudoun County, Virginia. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 25, 2000, 11:48 PM EDT (03:48 UTC)
- Expired
- Jun 26, 2000, 1:45 AM EDT
- In force
- 117 min
- Issued by
- NWS Baltimore/Washington
- Area
- Whole counties
Counties Montgomery County, MD, Fauquier County, VA, Loudoun County, VA
The radar
The Sterling radar (KLWX), 6 km from the middle of the area, began a volume at 03:48 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
Washington/Dulle, VA (KIAD), launched 00:00Z, 3.8 hours before the alert went out and 14 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
- 1430 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1292 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 167 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 260352 FFWLWX MDC031-VAC061-107-260545- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON 1148 PM EDT SUN JUN 25 2000 THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A * FLASH FLOOD WARNING FOR... MONTGOMERY COUNTY IN CENTRAL MARYLAND NORTHERN FAUQUIER COUNTY IN NORTHERN VIRGINIA EASTERN LOUDOUN COUNTY IN NORTHERN VIRGINIA * UNTIL 145 AM EDT * AT 1138 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM OLNEY TO 10 MILES SOUTHWEST OF WARRENTON...MOVING NORTHEAST AT 20 MPH. NUMEROUS THUNDERSTORMS WITH TORRENTIAL RAINS ARE REPEATEDLY AFFECTING THE SAME AREAS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. 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 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. TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN STERLING VIRGINIA. JLW/HTS
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 Jun 25, 9:07 PM EDT, 2 hours 41 minutes earlier.
Area forecast discussion, Jun 25, 9:07 PM EDT, 2 hours 41 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 907 PM EDT SUN JUN 25 2000 LN OF TSTMS HIT INSTAB AXIS AND HV FLARED UP OVR DC/CNTRL MD. PER 18Z ETA...VORT STRNG OVNGT...AND SEE NO RSN WHY SHRA/TSTMS WONT CONT INTO THE BAY. ONLY NEG IS DIURNAL...SO RISK OF MGRNL SVR LSSNS W/TIME. NOT MUCH CHG TO GOING FCST XCPT TO BUMP UP POPS AHD OF LN. HV DOUBTS ABT LACK OF HEAT ADVSRY TMRW...BUT HVNT HAD SUFFICIENT TIME TO7 ANALYZE IT. THUS...WL LV THIS TO THE NXT CREW TO HNDL. WL HOLD ONTO ZNS TIL 10PM. .LWX... DC...NONE. MD...NONE. VA...NONE. WV...NONE. HTS
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 8:52 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 38 min |
| Jun 25, 9:02 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 58 min |
| Jun 25, 9:48 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 42 min |
| Jun 26, 12:56 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Prince George's | 64 min |
| Jun 26, 1:11 AM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 49 min |
| Jun 26, 3:52 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 38 min |
| Jun 26, 4:24 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 51 min |
| Jun 26, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 45 min |
| Jun 26, 4:46 PM EDT | Flash Flood Warning | LWX | Howard, Montgomery | 59 min |
| Jun 26, 5:40 PM EDT | Flash Flood Warning | LWX | Montgomery | 65 min |
| Jun 26, 6:17 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 43 min |
| Jun 26, 2:34 PM EDT | Severe Thunderstorm Warning | LWX | Albemarle, City of Charlottesville | 41 min |
| Jun 26, 2:34 PM EDT | Severe Thunderstorm Warning | LWX | Orange | 41 min |
| Jun 26, 3:17 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Prince William, City of Manassas, City of Manassas Park | 43 min |
| Jun 26, 3:59 PM EDT | Severe Thunderstorm Warning | LWX | Spotsylvania, Stafford, City of Fredericksburg | 31 min |
| Jun 26, 4:08 PM EDT | Severe Thunderstorm Warning | LWX | Nelson | 52 min |
| Jun 26, 4:18 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Loudoun | 42 min |
| Jun 26, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | Spotsylvania, Stafford, City of Fredericksburg | 45 min |
| Jun 26, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | King George | 45 min |
| Jun 26, 5:02 PM EDT | Severe Thunderstorm Warning | LWX | Loudoun | 43 min |
| Jun 26, 6:33 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, City of Winchester | 57 min |
| Jun 26, 6:33 PM EDT | Severe Thunderstorm Warning | LWX | Clarke | 57 min |
| Jun 26, 6:53 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Loudoun | 52 min |
Nearby
Flash Flood Warnings in Virginia, 2000Flash Flood Warnings in Maryland, 2000Every flash flood warning in 2000
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.