1 flood, as filed by the National Weather Service.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, 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 the first event at Apr 13, 3:07 AM EST, 1 hour 53 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 407 AM EDT TUE APR 13 2004 .SHORT TERM...TODAY AND TNGT... VRY DIFFICULT FCST TODAY WITH BELOW NORMAL CONFIDENCE. UPR LOW OVR THE LWR MS VLY WL CONT TO SLOWLY MOVE E TODAY WHILE DEEPENING. STG UPR JET OF 115KT CURLED AROUND THE BASE OF THE TROF UP THE ERN SEABOARD. WATER VAPOR IMAGERY REVEALS A POTENT VORT MAX ROTATING AROUND THE BASE OF THE TROF THRU THE RED RVR VLY THIS MORN. H20 VAPOR IMAGERY ALSO SHOWS DRY SLOT MAKING A VRY AGRESSIVE MOVE UP THRU WRN NC AND ERN TN EARLY THIS MORN. AT THE SFC...COLD AIR DAMMING DOWN THE ERN SIDE OF THE MTNS HAS LEFT THE CWFA WITH NELY FLOW AND LOW CLDS AND DRIZZLE. HV BEEN WATCHING AREA PROFILERS...VWPS AND ACARS SNDGS AND ALL SUGGEST THAT THE COLD AIR IS NOT VRY DEEP...GENERALLY LESS THAN .5 KM E OF THE MTNS. TREND SO FAR THIS MORN HAS BEEN FOR DECREASING DEPTH OF THE COLD AIR. MDLS PRESENT SOME CHALLENGES THIS MORN. BOTH THE ETA AND GFS HAD SOME TROUBLE INITIALIZING H8 AND H9 OVR THE ERN SEABOARD THIS MORN WITH HEIGHTS TOO HIGH COMPARED TO THE OBSERVATIONS. ETA IS ALSO QUITE A BIT BEHIND IN THE PROGRESS OF THE DRY SLOT THRU THE SE CONUS COMPARED TO 06Z WATER VAPOR IMAGERY...THE GFS HAD THIS CAPTURED A BIT BETTER. FIRST AND NORMALLY THE DEFAULT REACTION IS THAT THE COLD AIR WILL HANG TOUGH THRUT THE DAY...LONGER THAN ALL INDICATIONS POINT. THAT BEING SAID ITS TOUGH TO IGNORE THE STRONG LLVL JET AT H8/H9 OVR ERN ZNS. WITH THE SHALLOW COLD AIR AND STG FORCING THINK THAT THE FNT WL MAKE PROGRESS TODAY. SFC PRESSURES ALSO FALLING UP AND DOWN THE ERN SEABOARD EARLY THIS MORN. PRIND THAT AREAS ALG AND E OF THE I-95 CORRIDOR WL SEE THE WARM AIR AT LEAST FOR A TIME THIS AFTN/EVE. FURTHER W MUCH MORE QUESTIONABLE GIVEN THE DISTANCE FM THE STG LLVL WINDS. ATTENDANT TEMP FCST PROBLEMS ABOUND WITH THIS BOUNDARY IN THE MIX. LIKE THE ETA HANDLING OF THE LLVL THERMODYNAMIC FIELDS LTR THIS AFTN HOWEVER...BY DEVELOPING A STG BAROCLINIC BOUNDARY RIGHT ALG THE I-95 CORRIDOR BY EVE. MAIN CONCERN TODAY IS SVR WX. CONDITIONAL SVR RISK MORE THAN MARGINAL TODAY FOR SURE. WITH DRY SLOT OVR THE AREA BY EVE AND STEEPENING LAPSE RATES WITH THE APCH OF THE UPR LOW...WL BE ABLE TO GENERATE A FAIR AMT OF ELEVATED INSTABILITY. ALL THINGS BEING EQUAL LOOKS LIKE THERE WL BE SOME ELEVATED HAIL PRODUCING STORMS WITH CLOUD LYR SHEAR MORE THAN SUFFICIENT TO SUSTAIN ORGANIZED UPDRAFTS. IN WRN ZNS...ISOLD WND DMG ALSO POSS GIVEN SHALLOW COLD AIR...BUT OVRALL WNDG THREAT LOW IN WRN ZNS. FURTHER E IN THE WARM AIR...ALMOST ANY STORM ROOTED IN THE BOUNDARY LYR WL BE CAPABLE OF PRODUCING WIND DAMAGE WITH STORM MOTIONS ALL MORE THAN 40KT. ALSO BLV THAT THERE IS A CONDITIONAL RISK OF TORNADOES TODAY. DEEP LYR SHEAR SUPPORTIVE OF SUPERCELL DEVELOPMENT GIVEN INSTABILITY. INTERESTING HODOGRAPH SHAPE TODAY WITH DEEP LYR SHEAR ALIGNED MORE OR LESS UNIDIRECTIONAL...BUT LLVLS DEFINITELY EXHIBITING SOME CURVATURE ALG WITH STG SPEED SHEAR. 0-2KM SHEAR IN EXCESS OF 20KT WITH 1KM SR HELICITIES OF AROUND 150 M2/S2. GOOD SR INFLOW AVAILABLE GREATER THAN 20KT TODAY. OVERALL THINK THAT THE PRIMARY MODE WL BE LINEAR WITH EMBEDDED SUPERCELL STRUCTURES. WITH THE STG UNIDIRECTIONAL DEEP LYR WIND FIELD SPLITTING STORMS WL DEFINITELY HV TO BE WATCHED AS THE RIGHT MOVING MEMBER WL HV EXCELLENT INFLOW ESP IF IT IS ABLE TO TAP INTO THE NR SFC AIR AND SLOW DOWN. ANY TORNADO RISK WL BE CONFINED TO AREAS THAT SEE THE WARM AIR. WL ATTEMPT TO CAPTURE THIS IN THE HWO AND ISSUE AN SPS THIS MORN. HVY RAFL EARLIER HAS HELPED TO SET THE STAGE FOR THE POSSIBILITY OF FLDG PROBS...MAINLY FOR SMALL CREEKS AND STREAMS. ANY MAINSTEM RVR FLDG XPCTD TO BE MINOR AND NOT FOR AT LEAST ANOTHER DAY. WL GO AHEAD AND ISSUE FFA FOR MINOR FLDG CONCERNS IN WRN AND NRN ZNS. && .LONG TERM...WED AND BEYOND... MUCH LESS GOING ON IN THE EXTENDED...BUT BETTER WEATHER IS INCOMING BY THE WEEKEND. FIRST OFF ON WEDNESDAY. ALL THAT IS LEFT OF THE CURRENT STORM SYSTEM IS THE UPPER LOW WHICH WILL PASS JUST TO OUR NORTH WEDNESDAY AFTERNOON. AM EXPECTING MORNING CLOUDS...THEN POSSIBLY SOME BREAKS DEVELOPING IN THE LATE MORNING BUT STILL MORE CLOUDS THAN SUN. BY LATE WED AFTERNOON AND DURING WED EVENING THERE IS A CHANCE FOR A LINE OF CONVECTIVE SHOWERS AS THE UPPER LOW PASSES JUST TO OUR NORTH. AFTER THAT PASSES OFFSHORE...IT LINGERS JUST OFF THE COAST WHICH MAY PROLONG THE CLOUD COVER A BIT LONGER IN THE EASTERN ZONES CLOSE TO THE BAY. FOR THE REST THOUGH THINGS SHOULD CLEAR UP DURING THE DAY ON THU AFTER SOME MORNING CLOUDS. HIGH PRES MOVES IN WITH A GOOD NORTH TO NORTHWEST FETCH ON THU. WILL BE A LITTLE BREEZY BUT PROB JUST BORDERLINE SMALL CRAFT AS SFC GRADIENT IS NOT THAT TIGHT. AXIS OF THE HIGH WILL CENTER OVER US FRI. THEN THE WARM UP OVER THE WEEKEND AS THE HIGH SLIPS TO OUR SOUTHEAST. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...NONE. MD...FLOOD WATCH THRU THIS EVE MDZ002>007. VA...FLOOD WATCH THRU THIS EVE VAZ021...VAZ028...VAZ031. WV...FLOOD WATCH THRU THIS EVE WVZ048>055. MARINE...NONE. SHORT TERM...MANNING LONG TERM...STRONG
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 455 AM EDT TUE APR 13 2004 DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042- 050>057-WVZ048>055-141000- 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- THIS HAZARDOUS WEATHER OUTLOOK IS FOR MARYLAND WEST OF THE CHESAPEAKE BAY AND EAST OF GARRETT COUNTY...EASTERN WEST VIRGINIA AND NORTHERN AND CENTRAL VIRGINIA AND WASHINGTON DC. .DAY ONE... THERE IS A CHANCE FOR SEVERE THUNDERSTORMS ACROSS THE AREA THIS AFTERNOON AND THIS EVENING. A WARM FRONT WILL MOVE NORTH TODAY ALLOWING WARMER AND MOIST AIR TO MOVE BACK INTO THE REGION. WINDS ALOFT ARE VERY STRONG TODAY WHICH WILL HELP TO CONTRIBUTE TO THE CHANCE FOR SEVERE THUNDERSTORMS. THE AREA MOST LIKELY TO SEE SEVERE WEATHER TODAY WILL BE ALONG AND EAST OF THE INTERSTATE 95 CORRIDOR INCLUDING THE BALTIMORE AND WASHINGTON METROPOLITAN AREAS. IN THIS AREA WHERE TEMPERATURES ARE EXPECTED TO BE THE WARMEST THUNDERSTORMS WILL BE CAPABLE OF PRODUCING STRONG DAMAGING WINDS AND LARGE HAIL. AN ISOLATED TORNADO IS ALSO POSSIBLE IN THIS AREA. THE MOST LIKELY TIME FOR SEVERE WEATHER TODAY WILL BE BETWEEN 4 AND 9 PM. IN ADDITION...ISOLATED SEVERE THUNDERSTORMS PRODUCING LARGE HAIL AND POSSIBLY DAMAGING WINDS ARE POSSIBLE IN AREAS WEST OF THE INTERSTATE 95 CORRIDOR THIS AFTERNOON AND THIS EVENING. IN THE NORTHERN SHENANDOAH VALLEY...POTOMAC HIGHLANDS AND NORTHERN MARYLAND...HEAVY RAINFALL MAY PRODUCE FLOODING OF SMALL CREEKS AND STREAMS THIS AFTERNOON AND THIS EVENING. .DAYS TWO THROUGH SEVEN... SOME MAINSTEM RIVERS WILL APPROACH FLOOD STAGE LATE TUESDAY INTO THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED TODAY. MANNING
SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 501 AM EDT TUE APR 13 2004 DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042- 050>057-WVZ048>055-132000- 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- ...SEVERE THUNDERSTORMS POSSIBLE TODAY... THERE IS A CHANCE FOR SEVERE THUNDERSTORMS ACROSS THE AREA THIS AFTERNOON AND THIS EVENING. A WARM FRONT WILL MOVE NORTH TODAY ALLOWING WARM MOIST AIR TO MOVE BACK INTO THE REGION. WINDS ALOFT ARE VERY STRONG TODAY WHICH WILL HELP TO CONTRIBUTE TO THE CHANCE FOR SEVERE THUNDERSTORMS. THE AREA MOST LIKELY TO SEE SEVERE WEATHER TODAY WILL BE ALONG AND EAST OF THE INTERSTATE 95 CORRIDOR INCLUDING THE BALTIMORE AND WASHINGTON METROPOLITAN AREAS. IN THIS AREA...WHERE TEMPERATURES ARE EXPECTED TO BE THE WARMEST...THUNDERSTORMS WILL BE CAPABLE OF PRODUCING STRONG DAMAGING WINDS AND LARGE HAIL. AN ISOLATED TORNADO IS ALSO POSSIBLE IN THIS AREA. THE MOST LIKELY TIME FOR SEVERE WEATHER TODAY WILL BE BETWEEN 4 AND 9 PM. IN ADDITION...ISOLATED SEVERE THUNDERSTORMS PRODUCING LARGE HAIL AND POSSIBLY DAMAGING WINDS ARE POSSIBLE IN AREAS WEST OF THE INTERSTATE 95 CORRIDOR THIS AFTERNOON AND THIS EVENING. IN THE NORTHERN SHENANDOAH VALLEY...POTOMAC HIGHLANDS AND NORTHERN MARYLAND...HEAVY RAINFALL MAY PRODUCE FLOODING OF SMALL CREEKS AND STREAMS THIS AFTERNOON AND THIS EVENING. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES. MANNING
1 flood. Local standard time, as filed.
Heavy rainfall on the 12th and 13th led to rises on area streams and rivers. The one to two inches of rain produced nuisance flooding in the Oldtown area. A privately owned low water bridge was affected.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2004Every state in 2004This day in weather historyWarnings in Maryland, April 2004
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5390889.