Alert archive / Maryland / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 182, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Jul 7, 2004, 4:59 PM EDT for Baltimore County, Maryland. It was in force for 46 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
- Jul 7, 2004, 4:59 PM EDT (20:59 UTC)
- Expired
- Jul 7, 2004, 5:45 PM EDT
- In force
- 46 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 21:00 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 |
|---|---|---|---|
| Jul 7, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.0 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1687 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
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 Jul 7, 3:00 PM EDT, 1 hour 59 minutes earlier.
Area forecast discussion, Jul 7, 3:00 PM EDT, 1 hour 59 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 300 PM EDT WED JUL 7 2004 .SHORT TERM...TONIGHT-THU... TSTMS FORMING ALONG THE CLD/CLR DIFFERENTIAL HTG BNDRY. WROTE ABT THE MET PARAMETERS THAT WL CONTRIBUTE TO TSTM DVLPMNT IN MY MRNG DSCN. SVR TSTM WTCH OUT E OF THE MTNS UNTIL 6 PM. XPCT TO SEE CLRG BY MDNGT...AND HV CUT DOWN SIGNIFICANTLY ON THE CLD CVR IN GRIDS OVRNGT. THINK WE HV ONE MORE DAY OF PSBL TSTMS ON THU B4 THINGS BECOME WARMER AND DRIER. CD FNT JUST ABT OUT OF CWA BY 00Z FRI. GOTTA GO... WOODY && LONG TERM (THU NIGHT-WED) UPPER LOW DEPARTS NORTHEASTERN STATES/SERN CANADA THU NIGHT AND STRONG RIDGE BUILDS IN. WX TURNS HOT AND HUMID AS RESULT WITH TEMPS AROUND 90 AND DEWPOINTS NEAR 70F. MCS ACTIVITY COULD ROLL THRU SRN NY/NRN PA DURING THE WEEKEND OVER TOP OF RIDGE. ISOLD -TSRA ACTIVITY POSSIBLE SUN-MON MAINLY OVER THE HIR TERRAIN DUE TO DIFFERENTIAL HEATING. A WEAK COLD FRONT WILL TRY TO PENETRATE THE AREA PERHAPS ON WED TO BRING SOME RELIEF TO THE HEAT AND HUMIDITY. ROSA .LWX WATCHES/WARNINGS/ADVISORIES... DC...SVR TSTM WTCH TIL 22Z. MD...SVR TSTM WTCH MD003-005-009-013-017-021-025-027-031-033-037. VA...SVR TSTM WTCH VAZ041-042-050>054. WV...NONE. MARINE...SVR TSTM WTCH PTMC AND MD PTN OF CHES BAY. &&
Hazardous weather outlook, Jul 7, 11:20 AM EDT, 5 hours 39 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1120 AM EDT WED JUL 7 2004 DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042- 050>057-WVZ048>055-080800- 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- 1120 AM EDT WED JUL 7 2004 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... THE STORM PREDICTION CENTER IN NORMAN OKLAHOMA HAS ISSUED AN OUTLOOK FOR PORTIONS OF WESTERN VIRGINIA...EASTERN WEST VIRGINA...AND WESTERN MARYLAND AS HAVING A RISK FOR SEVERE THUNDERSTORMS. THE MOST LIKELY THREAT WILL BE DAMAGING WINDS IN EXCESS OF 60 MPH AND POSSIBLY LARGE HAIL. THIS IS MOST LIKELY TO OCCUR BETWEEN 2 AND 7 PM. STORMS WILL HAVE THE POTENTIAL TO DRIFT FURTHER EAST INTO THE METROPOLITAN AREAS IN THE LATE AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EARLY EVENING.
In the hours before
Special weather statement, Jul 7, 2:01 PM EDT, 2 hours 58 minutes before
MDZ010-014-071830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 201 PM EDT WED JUL 7 2004 A STRONG THUNDERSTORM OVER WESTERN ANNE ARUNDEL AND EASTERN HOWARD COUNTIES WILL CONTINUE TO MOVE NORTHEAST AROUND 15 MPH. EXPECT WIND GUSTS TO 45 MPH...TORRENTIAL RAINFALL AND FREQUENT LIGHTNING STRIKES. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT WEDNESDAY EVENING FOR DISTRICT OF COLUMBIA AND NORTHWESTERN MARYLAND AND NORTHERN VIRGINIA.
Local storm report, Jul 7, 3:14 PM EDT, 1 hour 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
314 PM EDT WED JUL 07 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0310 PM HAIL REISTERSTOWN 39.46N 76.81W
07/07/2004 0.75 INCH BALTIMORE MD EMERGENCY MNGR
REPORT FROM MEMA.
&&
MANNINGLocal storm report, Jul 7, 3:41 PM EDT, 1 hour 18 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 |
|---|---|---|---|---|
| Jul 7, 1:30 PM EDT | Special Marine Warning | LWX | 90 min | |
| Jul 7, 1:30 PM EDT | Special Marine Warning | LWX | 90 min | |
| Jul 7, 2:27 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier | 48 min |
| Jul 7, 2:31 PM EDT | Special Marine Warning | LWX | 29 min | |
| Jul 7, 2:54 PM EDT | Special Marine Warning | LWX | 36 min | |
| Jul 7, 2:54 PM EDT | Special Marine Warning | LWX | 36 min | |
| Jul 7, 2:58 PM EDT | Special Marine Warning | LWX | 92 min | |
| Jul 7, 2:58 PM EDT | Special Marine Warning | LWX | 92 min | |
| Jul 7, 3:20 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, City of Fairfax | 40 min |
| Jul 7, 3:35 PM EDT | Special Marine Warning | LWX | 55 min | |
| Jul 7, 4:25 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Jul 7, 7:40 PM EDT | Severe Thunderstorm Warning | LWX | Loudoun | 50 min |
| Jul 7, 1:25 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 50 min |
| Jul 7, 2:39 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 51 min |
| Jul 7, 2:51 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 39 min |
| Jul 7, 2:57 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 63 min |
| Jul 7, 3:27 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 48 min |
| Jul 7, 3:29 PM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 3 hr |
| Jul 7, 4:19 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 41 min |
| Jul 7, 4:34 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 56 min |
| Jul 7, 4:47 PM EDT | Severe Thunderstorm Warning | LWX | City of Baltimore | 43 min |
| Jul 7, 6:30 PM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 3 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.