Alert archive / Maryland / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 141, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 17, 2004, 3:09 PM EDT for Baltimore County, Maryland. It was in force for 66 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 17, 2004, 3:09 PM EDT (19:09 UTC)
- Expired
- Jun 17, 2004, 4:15 PM EDT
- In force
- 66 min
- Issued by
- NWS Baltimore/Washington
- Area
- Counties, with a storm outline in the text
County Baltimore County, MD
The radar
The Sterling radar (KLWX), 91 km from the middle of the area, began a volume at 19:09 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 17, 2:35 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.2 hours before the alert went out and 44 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
- 456 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 655 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 17, 11:10 AM EDT, 3 hours 59 minutes earlier.
Area forecast discussion, Jun 17, 11:10 AM EDT, 3 hours 59 minutes before
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</html>Hazardous weather outlook, Jun 17, 11:29 AM EDT, 3 hours 40 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1129 AM EDT THU JUN 17 2004 DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042- 050>057-WVZ048>055-180800- 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- HIGHLAND VA-HOWARD MD-JEFFERSON WV-KING GEORGE VA-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- 1129 AM EDT THU JUN 17 2004 .DAY ONE... SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY THE EXTREME EASTERN PANHANDLE OF WEST VIRGINIA...WESTERN AND CENTRAL MARYLAND AND NORTHERN VIRGINIA. STORMS MAY BECOME SEVERE PRODUCING WIND GUSTS IN EXCESS OF 60 MPH...PENNY SIZE HAIL AND VERY HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED.
In the hours before
Special weather statement, Jun 17, 11:46 AM EDT, 3 hours 23 minutes before
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</html>Special weather statement, Jun 17, 2:21 PM EDT, 48 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 221 PM EDT THU JUN 17 2004 MDZ004-005-009-010-172010- CARROLL MD-FREDERICK MD-HOWARD MD-MONTGOMERY MD- 221 PM EDT THU JUN 17 2004 AT 2:10 PM...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR BUCKEYSTOWN IN FREDERICK COUTY MOVING TO THE EAST AT 30 MPH. PEOPLE TRAVELLING ALONG AND SOUTH ONF INTERSTATE 70 WILL BE AFFECTED BY THIS STORM. PEOPLE CAN EXPECT WIND GUSTS TO 40 MPH... TORRENTIAL DOWNPOURS AND DANGEROUS CLOUD TO GROUND LIGHTNING. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES.
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 4:03 PM EDT | Special Marine Warning | LWX | 87 min | |
| Jun 17, 4:09 PM EDT | Special Marine Warning | LWX | 96 min | |
| Jun 17, 5:15 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Jun 17, 6:13 PM EDT | Flash Flood Warning | LWX | Prince William, City of Manassas, City of Manassas Park | 4 hr |
| Jun 17, 6:30 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Jun 17, 6:30 PM EDT | Severe Thunderstorm Warning | LWX | Prince William | 45 min |
| Jun 17, 6:40 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Jun 17, 7:14 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Jun 17, 7:39 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Jun 17, 6:33 PM EDT | Flash Flood Warning | LWX | Prince George's | 4 hr |
| Jun 17, 6:36 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 39 min |
| Jun 17, 6:52 PM EDT | Flash Flood Warning | LWX | Anne Arundel | 83 min |
| Jun 17, 7:03 PM EDT | Tornado Warning | LWX | Charles | 57 min |
| Jun 17, 7:20 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 55 min |
| Jun 17, 7:21 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 54 min |
| Jun 17, 7:36 PM EDT | Flash Flood Warning | LWX | Calvert | 114 min |
| Jun 17, 7:55 PM EDT | Flash Flood Warning | LWX | Charles | 2 hr |
Nearby
Severe Thunderstorm Warnings in Maryland, 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.