Alert archive / Maryland / Flash Flood Warnings in 2005
Flash Flood Warning 16, NWS Baltimore/Washington
NWS Baltimore/Washington issued this flash flood warning at Mar 29, 2005, 5:03 AM EST for Washington County, Maryland. 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
- Mar 29, 2005, 5:03 AM EST (10:03 UTC)
- Expired
- Mar 29, 2005, 7:00 AM EST
- In force
- 117 min
- Issued by
- NWS Baltimore/Washington
- Area
- Counties, with a storm outline in the text
County Washington County, MD
The radar
The Sterling radar (KLWX), 75 km from the middle of the area, began a volume at 10:03 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, 10.1 hours before the alert went out and 81 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 620 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Mar 29, 4:15 AM EST, 48 minutes earlier.
Area forecast discussion, Mar 29, 4:15 AM EST, 48 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1158 AM EST MON MAR 28 2005 DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ025>031-036>042-050>056- WVZ048>055-291000- ALBEMARLE VA-ALLEGANY MD-ANNE ARUNDEL MD- ARLINGTON/FALLS CHURCH/ALEXANDRIA VA-AUGUSTA VA-BERKELEY WV- CALVERT MD-CARROLL MD-CHARLES MD-CLARKE VA-CULPEPER VA- DISTRICT OF COLUMBIA DC-FAIRFAX VA-FAUQUIER VA-FREDERICK VA- FREDERICK MD-GRANT WV-GREENE VA-HAMPSHIRE WV-HARDY WV-HARFORD MD- HOWARD MD-JEFFERSON WV-LOUDOUN VA-MADISON VA-MINERAL WV- MONTGOMERY MD-MORGAN WV-NELSON VA-NORTHERN BALTIMORE MD-ORANGE VA- PAGE VA-PENDLETON WV-PRINCE GEORGES MD- PRINCE WILLIAM/MANASSAS/MANASSAS PARK VA-RAPPAHANNOCK VA- ROCKINGHAM VA-SHENANDOAH VA-SOUTHERN BALTIMORE MD-SPOTSYLVANIA VA- ST. MARYS MD-STAFFORD VA-WARREN VA-WASHINGTON MD- 1158 AM EST MON MAR 28 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MARYLAND WEST OF THE CHESAPEAKE BAY AND EAST OF GARRETT COUNTY...EASTERN WEST VIRGINIA...NORTHERN AND CENTRAL VIRGINIA AND WASHINGTON DC. .DAY ONE... FLOODING WILL BE POSSIBLE OVER MUCH OF MARYLAND...THE EASTERN PANHANDLE OF WEST VIRGINIA AND PORTIONS OF NORTHERN VIRGINIA THIS AFTERNOON. ONE TO TWO INCHES OF RAINFALL CAN BE EXPECTED MAINLY ALONG AND NORTHWEST OF A LINE FROM ANNAPOLIS MARYLAND TO STAFFORD VIRGINIA TO WAYNESBORO VIRGINIA. CONSULT THE LATEST FLOOD WATCH MESSAGE UNDER WMO HEADER WGUS61 KLWX OR AWIPS HEADER WBCFFALWX FOR DETAILS. ISOLATED SEVERE THUNDERSTORMS MAY BE POSSIBLE OVER PORTIONS OF NORTHERN VIRGINIA AND LOWER SOUTHERN MARYLAND...MAINLY IN THE AFTERNOON. CONSULT THE SEVERE WEATHER OUTLOOK UNDER WMO HEADER WWUS81 KLWX OR AWIPS IDENTIFIER SPSLWX FOR DETAILS. .DAYS TWO THROUGH SEVEN... MONDAYS RAINFALL WILL DRAIN INTO THE AREA RIVERS ON TUESDAY... RESULTING IN RISING RIVER LEVELS. MANY STAGES WILL EXCEED CAUTION...AND SOME MAY APPROACH FLOOD. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON. HTS/SMITH
In the hours before
Local storm report, Mar 28, 11:08 PM EST, 5 hours 55 minutes before
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</html>Local storm report, Mar 29, 12:10 AM EST, 4 hours 53 minutes before
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</html>Local storm report, Mar 29, 1:16 AM EST, 3 hours 47 minutes before
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</html>The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 7:40 PM EST | Flash Flood Warning | LWX | Fairfax, City of Fairfax, City of Falls Church | 3 hr |
| Mar 28, 7:15 PM EST | Flash Flood Warning | LWX | Frederick, Washington | 3 hr |
| Mar 28, 8:35 PM EST | Flash Flood Warning | LWX | Allegany | 4 hr |
| Mar 28, 10:00 PM EST | Flash Flood Warning | LWX | Frederick, Washington | 4 hr |
| Mar 29, 12:30 AM EST | Flash Flood Warning | LWX | Allegany | 3 hr |
| Mar 29, 2:01 AM EST | Flash Flood Warning | LWX | Washington | 3 hr |
| Mar 28, 7:00 PM EST | Flash Flood Warning | LWX | Hampshire | 3 hr |
| Mar 28, 9:50 PM EST | Flash Flood Warning | LWX | Hampshire | 4 hr |
Nearby
Flash Flood Warnings in Maryland, 2005Every flash flood warning in 2005
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.