Alert archive / Virginia / Flash Flood Warnings in 2006

Flash Flood Warning 57, NWS Baltimore/Washington

June 26, 2006Nelson County, Virginia

NWS Baltimore/Washington issued this flash flood warning at Jun 26, 2006, 2:22 PM EDT for Nelson County, Virginia. It was in force for 6 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: Jun 26, 2006, 2:22 PM EDT (18:22 UTC)
Expired: Jun 26, 2006, 8:15 PM EDT
In force: 6 hr
Issued by: NWS Baltimore/Washington
Area: Counties, with a storm outline in the text

County Nelson County, VA

The radar

The Roanoke radar (KFCX), 149 km from the middle of the area, began a volume at 18:25 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 12:00Z, 6.4 hours before the alert went out and 85 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 135 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 561 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 36 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

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 26, 12:07 PM EDT, 2 hours 15 minutes earlier.

Area forecast discussion, Jun 26, 12:07 PM EDT, 2 hours 15 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Jun 26, 2:15 PM EDT, 7 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

In the hours before

Local storm report, Jun 26, 8:58 AM EDT, 5 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
858 AM EDT MON JUN 26 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     FLASH FLOOD      BEL AIR                 39.53N 76.35W
06/24/2006                   HARFORD            MD   EMERGENCY MNGR

            PLUM TREE RUN OUT OF BANKS. VEHICLE WASHED OVER
            EMBANKMENT ON SOUTH TOLLGATE RD. WATER RESCUE UNDERWAY.

0610 PM     FLASH FLOOD      WHITE MARSH             39.38N 76.46W
06/24/2006                   BALTIMORE          MD   TRAINED SPOTTER

            SPOTTER REPORTS DEEP WATER ACROSS CLIFFORD RD

0629 PM     FLASH FLOOD      BEL AIR                 39.53N 76.35W
06/24/2006                   HARFORD            MD   COUNTY OFFICIAL

            MULTIPLE WATER RESCUES COUNTY WIDE. MULTIPLE ROAD
            CLOSURES IN CENTRAL AND SOUTHERN PART OF COUNTY.

0640 PM     FLASH FLOOD      PERRY HALL              39.41N 76.48W
06/24/2006                   BALTIMORE          MD   COUNTY OFFICIAL

            TWO SWIFTWATER RESCUES ONGOING. OFFICIALS REPORT CHEST
            HIGH WATER IN STREET.

0800 PM     FLASH FLOOD      BRANDY STATION          38.50N 77.89W
06/24/2006                   CULPEPER           VA   EMERGENCY MNGR

            ROUTES 684 NEAR 663 AND 665 IMPASSABLE DUE TO FLASH
            FLOODING

0805 PM     FLASH FLOOD      CENTREVILLE             38.85N 77.44W
06/24/2006                   FAIRFAX            VA   EMERGENCY MNGR

            SWIFT WATER RESCUE

0815 PM     FLASH FLOOD      MANASSAS                38.75N 77.49W
06/24/2006                   CITY OF MANASSAS   VA   EMERGENCY MNGR

            PRINCE WILLIAM COUNTY REPORTED NUMEROUS ROADS WITH FLASH
            FLOODING NEAR MANASSAS INCLUDING ROUTE 28. THERE ARE ALSO
            REPORTS OF FLOODED BASEMENTS IN THE SAME AREA.

0950 PM     FLASH FLOOD      KEENE                   37.87N 78.56W
06/24/2006                   ALBEMARLE          VA   EMERGENCY MNGR

            SEVERAL ROADS CLOSED IN SOUTHERN ALBEMARLE COUNTY DUE TO
            FLASH FLOODING...INCLUDING EDGE VALLEY...PLANK...AND
            TAYLORS GAP.

1050 PM     FLASH FLOOD      JOPPA                   39.43N 76.36W
06/24/2006                   HARFORD            MD   TRAINED SPOTTER

            WHITAKER MILL RD FLOODED. BEL AIR RD BETWEEN HARFORD RD
            AND CONNOLY RD FLOODED.

0730 AM     FLASH FLOOD      GAINESVILLE             38.80N 77.61W
06/25/2006                   PRINCE WILLIAM     VA   NWS EMPLOYEE

            FLOODING OCCURRING AT INTERSECTION OF INTERSTATE 66 AND
            U.S. ROUTE 29.

1118 AM     FLASH FLOOD      VIENNA                  38.90N 77.26W
06/25/2006                   FAIRFAX            VA   LAW ENFORCEMENT

            FAIRFAX POLICE REPORTED OLD COURTHOUSE ROAD AT BESLEY
            ROAD CLOSED DUE TO HIGH ROAD.

1118 AM     FLASH FLOOD      VIENNA                  38.90N 77.26W
06/25/2006                   FAIRFAX            VA   AMATEUR RADIO

            FAIFAX COUNTY POLICE REPORTED ROAD CLOSURE DUE TO HIGH
            WATER AT OLD COURTHOUSE ROAD AND BESLEY ROAD

1118 AM     FLASH FLOOD      VIENNA                  38.90N 77.26W
06/25/2006                   FAIRFAX            VA   AMATEUR RADIO

            FAIRFAX COUNTY POLICE REPORTED OLD COURTHOUSE ROAD AT
            BESLEY ROAD CLOSED DUE TO HIGH WATER.

1150 AM     FLASH FLOOD      ROCKVILLE               39.08N 77.15W
06/25/2006                   MONTGOMERY         MD   FIRE DEPT/RESCUE

            NUMEROUS REPORTS OF HIGH WATER...STRANDED CARS AND
            FLOODED BASEMENTS RECEIVED FOR THE EASTERN HALF OF
            MONTGOMERY COUNTY. SEVERAL WATER RESCUES ONGOING.

1155 AM     FLASH FLOOD      RESTON                  38.95N 77.35W
06/25/2006                   FAIRFAX            VA   AMATEUR RADIO

            FAIRFAX COUNTY POLICE REPORTED STEWART MILL ROAD AT
            BIRDFOOT LANE CLOSED DUE TO HIGH WATER.

1155 AM     FLASH FLOOD      VIENNA                  38.90N 77.26W
06/25/2006                   FAIRFAX            VA   AMATEUR RADIO

            FAIRFAX COUNTY POLICE REPORTED CLOSURE OF STEWART MILL
            ROAD AT BIRDFOOT LANE DUE TO HIGH WATER.

1155 AM     FLASH FLOOD      RESTON                  38.95N 77.35W
06/25/2006                   FAIRFAX            VA   LAW ENFORCEMENT

            FAIRFAX POLICE REPORTED STEWART MILL ROAD AT BIRDFOOT
            LANE CLOSURE DUE TO HIGH WATER.

1210 PM     FLASH FLOOD      RESTON                  38.95N 77.35W
06/25/2006                   FAIRFAX            VA   AMATEUR RADIO

            FAIRFAX COUNTY POLICE REPORTED HUNTER MILL ROAD AT CEDAR
            POND DRIVE CLOSED DUE TO HIGH WATER.

1210 PM     FLASH FLOOD      RESTON                  38.95N 77.35W
06/25/2006                   FAIRFAX            VA   AMATEUR RADIO

            FAIRFAX COUNTY POLICE REPORTED CLOSURE OF HUNTER MILL
            ROAD AT CEDAR POND DRIVE DUE TO HIGH WATER.

0430 PM     FLASH FLOOD      HAGERSTOWN              39.64N 77.72W
06/25/2006                   WASHINGTON         MD   EMERGENCY MNGR

            NUMEROUS ROADS CLOSED DUE TO FLASH FLOODING

0430 PM     FLASH FLOOD      CATLETT                 38.65N 77.64W
06/25/2006                   FAUQUIER           VA   TRAINED SPOTTER

            KETTLE RUN OUT OF BANKS

0530 PM     FLASH FLOOD      MANASSAS                38.75N 77.49W
06/25/2006                   CITY OF MANASSAS   VA   EMERGENCY MNGR

            WELLINGTON ROAD CLOSED DUE TO FLASH FLOODING

0630 PM     FLASH FLOOD      KEENE                   37.87N 78.56W
06/25/2006                   ALBEMARLE          VA   COUNTY OFFICIAL

            HIGH WATER ON ROUTE 20. OFFICIALS REPORT MULTIPLE ROADS

            IN SOUTHEAST PART OF COUNTY CLOSED DUE TO FLASH FLOODING.

0735 PM     FLASH FLOOD      GERMANTOWN              39.18N 77.26W
06/25/2006                   MONTGOMERY         MD   EMERGENCY MNGR

            4-5 WATER RESCUES ACROSS CENTRAL MONTGOMERY COUNTY DUE TO
            FLASH FLOODING

0805 PM     FLASH FLOOD      MANASSAS                38.75N 77.49W
06/25/2006                   CITY OF MANASSAS   VA   EMERGENCY MNGR

            LITEN HALL ROAD CLOSED DUE TO FLASH FLOODING

0810 PM     FLASH FLOOD      CHANTILLY               38.88N 77.41W
06/25/2006                   FAIRFAX            VA   EMERGENCY MNGR

            CAR UNDER WATER. SEVERAL OTHER ROADS IN AREA CLOSED TO
            FLASH FLOODING.

0815 PM     FLASH FLOOD      ELLICOTT CITY           39.27N 76.83W
06/25/2006                   HOWARD             MD   EMERGENCY MNGR

            NUMEROUS ROADS CLOSED COUNTYWIDE.

0848 PM     FLASH FLOOD      STERLING                39.01N 77.43W
06/25/2006                   LOUDOUN            VA   OTHER FEDERAL

            DULLES AIRPORT REPORTED WATER RESCUES ON ACCESS ROADS AND
            COMMERICAL PARKING LOTS

0910 PM     FLASH FLOOD      TOWSON                  39.40N 76.62W
06/25/2006                   BALTIMORE          MD   EMERGENCY MNGR

            NUMEROUS ROADS CLOSED COUNTYWIDE DUE TO FLASH FLOODING

0945 PM     FLASH FLOOD      WASHINGTON              38.91N 77.02W
06/25/2006                   DISTRICT OF COLUMB DC   FIRE DEPT/RESCUE

            WASHINGTON FIRE REPORTED SEVERAL ROADS CLOSED DUE TO
            FLASH FLOODING IN NORTHEAST

1015 PM     FLASH FLOOD      TOWSON                  39.40N 76.62W
06/25/2006                   BALTIMORE          MD   EMERGENCY MNGR

            SEVERAL WATER RESCUES IN PROGRESS

1015 PM     FLASH FLOOD      1 N TOWSON              39.41N 76.62W
06/25/2006                   BALTIMORE          MD   EMERGENCY MNGR

            WATER RESCUE IN PROGRESS.

1015 PM     FLASH FLOOD      TOWSON                  39.40N 76.62W
06/25/2006                   BALTIMORE          MD   EMERGENCY MNGR

            WATER RESCUE IN PROGRESS ON YORK ROAD.

1035 PM     FLASH FLOOD      BALTIMORE               39.30N 76.61W
06/25/2006                   BALTIMORE CITY     MD   UTILITY COMPANY

            STREAMS ARE COMING OUT OF THE BANKS ACROSS THE CITY.
            REPORT FROM BALTIMORE CITY WATER TREATMENT PLANT.

1048 PM     FLASH FLOOD      1 N TOWSON              39.41N 76.62W
06/25/2006                   BALTIMORE          MD   EMERGENCY MNGR

            WATER RESCUE IN PROGRESS.

1050 PM     FLASH FLOOD      FAIRFAX                 38.85N 77.30W
06/25/2006                   CITY OF FAIRFAX    VA   COUNTY OFFICIAL

            OFFICIALS REPORT ALMOST ALL MAJOR ROADS CLOSED IN FAIRFAX
            CITY.

1115 PM     FLASH FLOOD      WASHINGTON              38.91N 77.02W
06/25/2006                   DISTRICT OF COLUMB DC   COUNTY OFFICIAL

            OFFICIALS REPORT MAJOR ROAD CLOSURES DUE TO FLOODING
            INCLUDING PENNSYLVANIA AVENUE.

0100 AM     FLASH FLOOD      BRANDYWINE              38.70N 76.85W
06/26/2006                   PRINCE GEORGES     MD   LAW ENFORCEMENT

            NUMEROUS ROAD CLOSURES AND WATER RESCUES IN THE SOUTHERN
            PART OF PRINCE GEORGES COUNTY.

&&

JBROTH

Local storm report, Jun 26, 10:53 AM EDT, 3 hours 29 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Jun 26, 11:07 AM EDT, 3 hours 15 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Jun 26, 11:58 AM EDT, 2 hours 24 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Jun 26, 1:39 PM EDT, 43 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 8:51 PM EDT	Flash Flood Warning	LWX	Arlington, City of Alexandria, City of Falls Church	4 hr
Jun 25, 11:43 PM EDT	Flash Flood Warning	LWX	Highland	4 hr
Jun 26, 12:26 AM EDT	Flash Flood Warning	LWX	Arlington, City of Alexandria, City of Falls Church	3 hr
Jun 26, 3:44 AM EDT	Flash Flood Warning	LWX	Highland	3 hr
Jun 26, 6:41 AM EDT	Coastal Flood Statement	LWX	Arlington, Fairfax, King George, Stafford, City of Alexandria, City of Fairfax and 1 more	109 min
Jun 26, 8:30 AM EDT	Coastal Flood Warning	LWX	Arlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church	4 hr
Jun 26, 9:34 AM EDT	Flash Flood Warning	LWX	Augusta, Highland, City of Staunton, City of Waynesboro	6 hr
Jun 26, 10:49 AM EDT	Flash Flood Warning	LWX	Rockingham, City of Harrisonburg	4 hr
Jun 26, 11:09 AM EDT	Flash Flood Warning	LWX	Arlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church	6 hr
Jun 26, 12:13 PM EDT	Flash Flood Warning	LWX	Fauquier, Prince William, City of Manassas, City of Manassas Park	6 hr
Jun 26, 1:06 PM EDT	Flash Flood Warning	LWX	Culpeper, Orange, Spotsylvania, Stafford, City of Fredericksburg	6 hr
Jun 26, 1:17 PM EDT	Flash Flood Warning	LWX	Loudoun	3 hr
Jun 26, 4:56 PM EDT	Flash Flood Warning	LWX	Arlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church	6 hr
Jun 26, 5:39 PM EDT	Special Marine Warning	LWX		96 min
Jun 26, 6:08 PM EDT	Flash Flood Warning	LWX	Prince William, City of Manassas, City of Manassas Park	6 hr
Jun 25, 8:16 PM EDT	Flash Flood Warning	LWX	Baltimore, City of Baltimore	4 hr
Jun 25, 10:13 PM EDT	Flash Flood Warning	LWX	Harford	3 hr
Jun 25, 10:14 PM EDT	Flash Flood Warning	LWX	Prince George's	3 hr
Jun 25, 10:51 PM EDT	Flash Flood Warning	LWX	Montgomery	4 hr
Jun 25, 11:04 PM EDT	Flash Flood Warning	LWX	Howard	4 hr
Jun 26, 1:01 AM EDT	Flash Flood Warning	LWX	Harford	119 min
Jun 26, 2:32 AM EDT	Flash Flood Warning	LWX	Allegany	4 hr
Jun 26, 4:37 AM EDT	Flash Flood Warning	LWX	Washington	3 hr
Jun 26, 11:15 AM EDT	Flash Flood Warning	LWX	Anne Arundel	4 hr
Jun 26, 11:31 AM EDT	Flash Flood Warning	LWX	Baltimore, Harford, City of Baltimore	6 hr
Jun 26, 1:16 PM EDT	Flash Flood Warning	LWX	Howard	6 hr
Jun 26, 3:34 PM EDT	Flash Flood Warning	LWX	Carroll	6 hr
Jun 26, 7:09 PM EDT	Flash Flood Warning	LWX	Howard	6 hr

Nearby

Flash Flood Warnings in Virginia, 2006 Every flash flood warning in 2006

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.