Alert archive / Virginia / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 252, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Oct 2, 2004, 6:28 PM EDT for Arlington County, City of Alexandria, Virginia; Montgomery County, Prince George's County, Maryland. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 2, 2004, 6:28 PM EDT (22:28 UTC)
- Expired
- Oct 2, 2004, 7:15 PM EDT
- In force
- 47 min
- Issued by
- NWS Baltimore/Washington
- Area
- Counties, with a storm outline in the text
Counties Montgomery County, MD, Prince George's County, MD, Arlington County, VA, City of Alexandria, VA
The radar
The Sterling radar (KLWX), 34 km from the middle of the area, began a volume at 22:29 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 12:00Z, 10.5 hours before the alert went out and 26 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
- 8 J/kg
- Mixed-layer CIN
- -134 J/kg
- Mixed-layer LCL
- 634 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KLWX 022228
SVRLWX
DCC001-MDC031-033-VAC013-510-022315-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
628 PM EDT SAT OCT 2 2004
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
DISTRICT OF COLUMBIA IN DISTRICT OF COLUMBIA
MONTGOMERY COUNTY IN CENTRAL MARYLAND
PRINCE GEORGES COUNTY IN CENTRAL MARYLAND
ARLINGTON COUNTY IN NORTHERN VIRGINIA
CITY OF ALEXANDRIA IN NORTHERN VIRGINIA
* UNTIL 715 PM EDT
* AT 624 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER
THE AMERICAN LEGION BRIDGE...MOVING SOUTHEAST AT 15 MPH.
* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...WASHINGTON...
ADAMS MORGAN...AMERICAN UNIVERSITY...ANACOSTIA...GEORGETOWN...
KENILWORTH...US CAPITOL...BETHESDA...BLADENSBURG...CHEVERLY...CHEVY
CHASE...CORAL HILLS...HYATTSVILLE...LANDOVER...MARLOW HEIGHTS...
OXON HILL...POTOMAC...SEAT PLEASANT...TAKOMA PARK...THE AMERICAN
LEGION BRIDGE...ARLINGTON...BALLSTON...REAGAN NATIONAL AIRPORT AND
ROSSLYN.
HAIL TO THE SIZE OF PENNIES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED
IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE
STORM HAS PASSED.
LAT...LON 3894 7686 3877 7699 3889 7716 3893 7711
3896 7714 3897 7715 3898 7724 3905 7726
3909 7724
$$The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 2, 7:01 PM EDT | Special Marine Warning | LWX | 89 min | |
| Oct 2, 7:15 PM EDT | Severe Thunderstorm Warning | LWX | Arlington, City of Alexandria | 45 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 2004Severe Thunderstorm Warnings in Maryland, 2004Severe Thunderstorm Warnings in District of Columbia, 2004Every severe thunderstorm warning in 2004
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.