Alert archive / Maryland / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 71, NWS Baltimore/Washington

May 17, 2004Montgomery County, Maryland

NWS Baltimore/Washington issued this severe thunderstorm warning at May 17, 2004, 8:28 PM EDT for Montgomery 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 counties it named.

The facts

Issued: May 17, 2004, 8:28 PM EDT (00:28 UTC)
Expired: May 17, 2004, 9:15 PM EDT
In force: 47 min
Issued by: NWS Baltimore/Washington
Area: Counties, with a storm outline in the text

County Montgomery County, MD

The radar

The Sterling radar (KLWX), 30 km from the middle of the area, began a volume at 00:31 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.

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 May 17, 3:25 PM EDT, 5 hours 3 minutes earlier.

Area forecast discussion, May 17, 3:25 PM EDT, 5 hours 3 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
225 PM EST MON MAY 17 2004

.SHORT TERM...TNGT/TUE...

ALTHO IVE ALWAYS BEEN A FAIRLY CREATIVE WRITER..IM RUNNING OUT OF
WAYS TO SAY WARM MOIST AIR MASS REMAINING OVR MID ATLC RGN WL CAUSE
AFTN/EVE RW/TRW TO GNR8 AGN TMRW. HELICITIES ON TUE RMN MINIMAL..
ETA BUFKIT SHOWS MINIMAL CAPE. ANOTHER DAY OF ISOLD CELLS THAT CAN
PRODUCE VERY HVY RAINFALL TUE.

WOODY

.LONG TERM...TUE NGHT THROUGH MON...

HI PRES OFF MID ATLC CST GIVES WAY TO APPRCHNG SFC FRNT TUE NGHT.
FRNT WKNS AND HANGS UP OFF COAST ON WED THEN DISSIPATES...LVNG CWA
JUST S OF THE BNDRY BTWN STBL/UNSTBL AIR MASSES.  A 2ND SFC FRNT WITH
BETTER SFC CNVRG MOVES ACRS CWA LATE THU AFT.

DESPITE A COUPLE ATTMPTS FOR STBL AIR ASSOC WTH FROPA TO MV INTO
REGN OVR NXT 5 DAYS...ATMPSHRE WL RMN UNSTBL WTH THREAT OF TSRA
EVRY AFT AND EVNG.  MRF SHOWS EVEN MORE UNSTBL AIR THIS WKND THRU
MON.  NOT MUCH CHNG TO PREV FCST.

JL

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...NONE.
MD...NONE.
VA...NONE.
WV...NONE.
MARINE...NONE.

&&

Hazardous weather outlook, May 17, 4:32 AM EDT, 15 hours 56 minutes before

DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042-
050>057-WVZ048>055-010000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
432 AM EDT MON MAY 17 2004

DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042-
050>057-WVZ048>055-181000-
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-
432 AM EDT MON MAY 17 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...
SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND
EVENING. HEAVY RAINFALL WILL BE THE GREATEST THREAT. HOWEVER...A FEW
STORMS COULD BECOME STRONG AND MAY PRODUCE GUSTY WINDS AND HAIL.

.DAYS TWO THROUGH SEVEN...
ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE EACH DAY.

 .SPOTTER INFORMATION STATEMENT...
PRECIPITATION AND OTHER SEVERE WEATHER REPORTS WILL BE APPRECIATED
THIS AFTERNOON AND EVENING. HOWEVER...SKYWARN ACTIVATION IS NOT
ANTICIPATED AT THIS TIME.

ROGOWSKI

In the hours before

Local storm report, May 17, 4:07 PM EDT, 4 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
407 PM EDT MON MAY 17 2004

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

0405 PM     HAIL             HAMPTON                 39.42N 76.57W
05/17/2004  1.00 INCH        BALTIMORE          MD   TRAINED SPOTTER

&&

MANNING

Local storm report, May 17, 6:20 PM EDT, 2 hours 8 minutes before

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Local storm report, May 17, 6:37 PM EDT, 1 hour 51 minutes before

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Local storm report, May 17, 7:47 PM EDT, 41 minutes before

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Special weather statement, May 17, 8:16 PM EDT, 12 minutes before

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Local storm report, May 17, 8:18 PM EDT, 10 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 2:20 PM EDT	Special Marine Warning	LWX		85 min
May 18, 3:29 PM EDT	Flash Flood Warning	LWX	Madison	3 hr
May 18, 3:45 PM EDT	Severe Thunderstorm Warning	LWX	Madison	60 min
May 18, 4:35 PM EDT	Severe Thunderstorm Warning	LWX	Loudoun	40 min
May 18, 5:59 PM EDT	Special Marine Warning	LWX		2 hr
May 17, 8:39 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	66 min
May 18, 5:49 PM EDT	Severe Thunderstorm Warning	LWX	Prince George's	26 min
May 18, 5:58 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	62 min
May 18, 6:48 PM EDT	Severe Thunderstorm Warning	LWX	Washington	57 min
May 18, 7:25 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	65 min
May 18, 6:36 PM EDT	Severe Thunderstorm Warning	LWX	Morgan	39 min
May 18, 7:11 PM EDT	Severe Thunderstorm Warning	LWX	Hampshire	49 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2004 Every 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; radar from the NEXRAD Level II archive.