Alert archive / Virginia / Flash Flood Warnings in 2013

Flash Flood Warning 21, NWS Baltimore/Washington

June 9, 2013Culpeper County, Madison County, Orange County, Virginia

NWS Baltimore/Washington issued this flash flood warning at Jun 9, 2013, 11:49 PM EDT for Culpeper County, Madison County, Orange County, Virginia. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 9, 2013, 11:49 PM EDT (03:49 UTC)
Expired
Jun 10, 2013, 2:45 AM EDT
In force
3 hr
Issued by
NWS Baltimore/Washington
Area
Storm-based polygon
Flood severity
None

Counties Culpeper County, VA, Madison County, VA, Orange County, VA

The radar

The Sterling radar (KLWX), 89 km from the middle of the area, began a volume at 03:52 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.

What was reported inside it

TimeReportWhereRemark
Jun 10, 12:00 AM EDTFLASH FLOODCulpeper, VAROADS CLOSED IN CULPEPER DUE TO FLASH FLOODING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 3.8 hours before the alert went out and 92 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 00:00Z on 2013-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 289 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2013-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
289 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
1002 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
175 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

091 
WGUS51 KLWX 100349
FFWLWX
VAC047-113-137-100645-
/O.NEW.KLWX.FF.W.0021.130610T0349Z-130610T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1149 PM EDT SUN JUN 9 2013

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN ORANGE COUNTY IN CENTRAL VIRGINIA...
  CULPEPER COUNTY IN NORTHERN VIRGINIA...
  SOUTHEASTERN MADISON COUNTY IN NORTHWEST VIRGINIA...

* UNTIL 245 AM EDT

* AT 1148 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN CAPABLE OF PRODUCING FLASH FLOODING. RADAR
  ESTIMATES THAT UP TO 3 INCHES OF RAIN HAVE ALREADY FALLEN ACROSS
  PORTIONS OF THE WARNED AREA. ADDITIONAL RAINFALL AMOUNTS OF UP TO 1
  INCH CAN BE EXPECTED.

* SOME LOCATIONS THAT ARE AFFECTED BY THE HEAVY RAIN INCLUDE CULPEPER
  AND ORANGE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. ACT QUICKLY IF FLASH FLOODING IS OBSERVED. MOVE
TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT
TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3815 7819 3827 7829 3828 7829 3849 7816
      3863 7800 3844 7778 3831 7799

$$


BJL
1 follow-up statement
372 
WGUS71 KLWX 100536
FFSLWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
136 AM EDT MON JUN 10 2013

VAC047-113-137-100645-
/O.CON.KLWX.FF.W.0021.000000T0000Z-130610T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ORANGE VA-CULPEPER VA-MADISON VA-
136 AM EDT MON JUN 10 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 AM EDT FOR
SOUTHEASTERN MADISON...CULPEPER AND WESTERN ORANGE COUNTIES...

AT 136 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY
HEAVY RAIN CAPABLE OF PRODUCING FLASH FLOODING. RADAR ESTIMATES THAT
UP TO 4 INCHES OF RAIN HAVE ALREADY FALLEN ACROSS PORTIONS OF THE
WARNED AREA. ADDITIONAL RAINFALL AMOUNTS OF UP TO 1 INCH CAN BE
EXPECTED.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CULPEPER AND
ORANGE.

AT 136 AM EDT...THE CULPEPER 911 CENTER HAS REPORTED NUMEROUS ROADS 
CLOSED IN CULPEPER. RAPIDAN ROAD IN RAPIDAN WAS ALSO REPORTED 
CLOSED. 

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. ACT QUICKLY IF FLASH FLOODING IS OBSERVED. MOVE
TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT
TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3815 7819 3827 7829 3828 7829 3849 7816
      3863 7800 3844 7778 3831 7799

$$


BJL

The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 9, 9:09 PM EDTFlash Flood WatchLWXArlington, Culpeper, Fairfax, Fauquier, Greene, Highland and 19 more26 hr
Jun 9, 11:59 PM EDTAreal Flood WarningLWXAlbemarle, Greene, City of Charlottesville6 hr
Jun 10, 12:19 AM EDTFlash Flood WarningLWXCulpeper, Fauquier3 hr
Jun 10, 12:23 AM EDTFlash Flood WarningLWXCulpeper, Madison, Orange3 hr
Jun 10, 2:32 AM EDTAreal Flood WarningLWXCulpeper, Fauquier, Madison, Orange31 hr
Jun 10, 4:52 AM EDTRiver Flood WarningLWXCulpeper, Orange17 hr
Jun 10, 5:58 AM EDTAreal Flood WarningLWXFauquier3 hr
Jun 10, 6:42 AM EDTRiver Flood WarningLWXCulpeper, Fauquier11 hr
Jun 10, 10:57 AM EDTAreal Flood WarningLWXAugusta4 hr
Jun 10, 1:25 PM EDTSpecial Marine WarningLWX65 min
Jun 10, 2:10 PM EDTSpecial Marine WarningLWX50 min
Jun 10, 2:23 PM EDTSpecial Marine WarningLWX67 min
Jun 10, 2:30 PM EDTFlash Flood WarningLWXFairfax, Prince William3 hr
Jun 10, 2:58 PM EDTFlash Flood WarningLWXArlington, Fairfax, City of Alexandria3 hr
Jun 10, 3:31 PM EDTSpecial Marine WarningLWX44 min
Jun 10, 4:55 PM EDTTornado WarningLWXFrederick, City of Winchester35 min
Jun 10, 5:22 PM EDTSevere Thunderstorm WarningLWXClarke, Frederick, Loudoun23 min
Jun 10, 5:42 PM EDTSevere Thunderstorm WarningLWXClarke, Loudoun48 min
Jun 10, 6:33 PM EDTSevere Thunderstorm WarningLWXCulpeper, Orange, Spotsylvania, Stafford, City of Fredericksburg42 min
Jun 10, 6:38 PM EDTAreal Flood WarningLWXLoudoun13 hr
Jun 10, 7:13 PM EDTSpecial Marine WarningLWX92 min
Jun 10, 7:32 PM EDTFlash Flood WarningLWXFairfax, Prince William, City of Fairfax, City of Manassas, City of Manassas Park3 hr
Jun 10, 7:47 PM EDTSpecial Marine WarningLWX88 min
Jun 10, 7:53 PM EDTFlash Flood WarningLWXArlington, Fairfax, Prince William, City of Alexandria, City of Falls Church3 hr

Nearby

Flash Flood Warnings in Virginia, 2013Every flash flood warning in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.