Thunderstorms with high winds moved through Prince George's and St. Mary's County during the afternoon of the 7th.
Every event with a place to put it. Tap one for its entry below.
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 episode as NWS LWX wrote it up.
Thunderstorms with high winds moved through Prince George's and St. Mary's County during the afternoon of the 7th. In Prince George's County, a downburst of wind ripped the roof and one wall off a hangar at Hyde Field in Clinton. Three single engine planes were also damaged at the airport, including one which was flipped over. In addition, numerous trees were downed across the southern half of the county. In St. Mary's County, a tree was downed in Hollywood.
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 Jul 7, 1:55 PM EST, 2 hours 5 minutes earlier.
AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
255 PM EDT MON JUL 7 2003
CORRECTED CODING AT BOTTOM.
ZNS WL BE RELEASED SHORTLY. WATCH BOX HAS JUST BEEN GENERATED AND WL
HV WATCH INCORPORATED IN.
***
TODAY AND TNT...ANOTHER DAY OF CONVECTION FOR THE MID ATLANTIC.
INSTAB IS LESSER THAN SUNDAY WITH LIS OF -5 INSTEAD OF -7 AND CAPES
AROUND 2000 INSTEAD OF 3000...BUT STILL ENOUGH FOR MORE SHRA AND
TSRA THIS AFTERNOON AND EVENING. FLOW STAYS ZONAL IN THE SHORT TERM
BUT BACKS A BIT OVERNIGHT AND SFC WINDS WILL BE AROUND 280 DEGS.
THAT WILL HELP TO SUPPRS CONVTN A BIT MORE. SO WENT WITH LOWR POPS
TOMORROW AS WELL AS HIGHER TMPS.
FWC HAS BEEN RUNNING THREE DEGS TOO HIGH FOR SECOND PERIOD MAX
FORECASTING...SO WILL STICK WITH 3 DEGS OFF THE FWC MAX WHICH PUTS
IT A COUPLE OF DEGS HIGHER THAN TODAY AND GENERALLY 90 TO 95.
STRONG
.LONGER...TUE NGT-MON
LOOKING LIKE A PD OF RW/TRW FOR THE WRKWK...AND THEN QUITE PLSNT MID
SUMMER WX FOR THE WKND. INITIALLY A CD FNT POSITIONED N OF THE
CWA...AND AS IS COMMON AT THIS TIME OF YR IT DOESNT MOVE VERY
QUICKLY SWD THEREAFTER. HENCE MID ATLC WL BE ON THE MOIST SIDE OF
THE BNDRY WED-FRI...AND WL HV CHC TRW ON EACH OF THESE DAYS. IN
UPPER LVL PATTERN A SHORT WV COMES THRU ON FRI W/ LOW PRES DVLPG ON
THE STATIONARY BDNRY...KICKING A CD FNT THRU AND OFF THE CST.
THINKING IS BEST CHC POPS WL BE THU AFTN/ERLY FRI IN ASSO W/ THIS
FEATURE.
W/ HIGH PRES BUILDING IN BEHIND WKND LOOKS TO BE FAIRLY COMFORTABLE
FOR MID JUL W/ RLTVLY LOW RH AND HIGHS IN THE M80S. WL LV NEXT MON
AS DRY FOR NOW. LATER SHIFTS CAN REVISIT.
WOODY
.LWX...
DC...SVR TSTM WTCH UNTIL 8 PM.
MD...SVR TSTM WTCH UNTIL 8 PM FREDERICK-HARFORD-PG-ANNE ARUNDEL-
BALTIMORE-HOWARD-MONGOMERY-FREDERICK-CARROLL
VA...SVR TSTM WTCH UNTIL 8 PM LOUDOUN-FAIRFAX-PRINCE WILLIAM.
WV...NONE.
MARINE...SVR TSTM WTCH UNTIL 8 PM.DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042- 050>057-WVZ048>055-081200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1033 AM EDT MON JUL 7 2003 .DAY ONE...TODAY THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS ACROSS THE REGION TODAY. THE GREATEST THREAT FROM THE SEVERE STORMS WILL BE DAMAGING WINDS. THE THUNDERSTORMS WILL BE MOST NUMEROUS BETWEEN THE HOURS OF 3:00 PM AND 10:00 PM. THE STRONGEST STORMS WILL BE CAPABLE OF DOWNING TREES AND POWER LINES. IN ADDITION...ANY THUNDERSTORMS THAT FORM TODAY WILL BE CAPABLE OF PRODUCING HEAVY DOWNPOURS DUE TO THE HUMID CONDITIONS. SOME LOCATIONS MAY EXPERIENCE LOCALIZED FLOODING IN LOW LYING AREAS AND ON ROADWAYS WITH POOR DRAINAGE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NECESSARY THIS AFTERNOON. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. STRONG
MDZ004-009-VAZ042-071945- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 250 PM EDT MON JUL 7 2003 AT 2:50 PM...DOPPLER RADAR INDICATED A PARTICULAR SEGMENT OF STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM 2 MILES WEST OF JEFFERSON TO LOVETTSVILLE...MOVING SOUTHEAST AT 20 MPH. THESE STORMS WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. HEAVY RAIN IS ALSO POSSIBLE WITH THESE STORMS. THE COMMUNITIES OF BALLENGER CREEK...BRUNSWICK...DAMASCUS...GAITHERSBURG...GERMANTOWN...MONTGOMERY VILLAGE...POINT OF ROCKS AND BOYDS WILL BE AFFECTED BY THESE STORMS THROUGH 3:45 PM. ROGOWSKI
MDZ009-VAZ042-053-072030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 325 PM EDT MON JUL 7 2003 AT 3:25 PM...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM PHILOMONT TO POOLESVILLE...IN NORTHERN LOUDON COUNTY...MOVING SOUTHEAST AT 20 MPH. THESE STORMS WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. THE GUSTY WINDS MAY COME AHEAD OF ANY RAIN OR THUNDER. THE COMMUNITIES OF GAITHERSBURG...NORTH POTOMAC...POOLESVILLE...POTOMAC...ROCKVILLE...ASHBURN...COUNTRYSIDE.. .GREAT FALLS...HERNDON...LEESBURG...RESTON...ARCOLA AND DULLES INTERNATIONAL AIRPORT MAY BE AFFECTED BY THESE STORMS THROUGH 4:30 PM. ROGOWSKI
VAZ040-051-072030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 331 PM EDT MON JUL 7 2003 AT 3:31 PM...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 2 MILES NORTHEAST OF SLATE MILLS...MOVING SOUTHEAST AT 20 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. THE COMMUNITIES OF CULPEPER...AND MUCH OF SOUTHERN CULPEPER COUNTY...WILL BE AFFECTED BY THIS STORM THROUGH 4:30 PM. ROGOWSKI
DCZ001-MDZ009-010-013-014-016-018-VAZ052>054-072115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 403 PM EDT MON JUL 7 2003 AT 4:03 PM...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 3 MILES SOUTHWEST OF DAYTON TO ALEXANDRIA TO 7 MILES SOUTHWEST OF INDEPENDENT HILL...MOVING EAST AT 25 MPH. THESE STORMS WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH...IN ADDITION TO VERY HEAVY RAIN. A LARGE PORTION OF THE DISTRICT OF COLUMBIA...HOWARD...MONTGOMERY...ANNE ARUNDEL...PRINCE GEORGES...CALVERT...CHARLES...CITY OF ALEXANDRIA...CITY OF FAIRFAX...CITY OF FALLS CHURCH...ARLINGTON...PRINCE WILLIAM AND FAIRFAX COUNTIES WILL BE AFFECTED BY THESE STORMS THROUGH 5:15 PM. ROGOWSKI
VAZ052-072130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 440 PM EDT MON JUL 7 2003 AT 4:40 PM...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER INDEPENDENT HILL...OVER CENTRAL MANASSAS COUNTY...MOVING SOUTHEAST AT 15 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 40 MPH...ALONG WITH VERY HEAVY RAIN. THE COMMUNITIES OF DALE CITY...DUMFRIES...MONTCLAIR...TRIANGLE AND WOODBRIDGE WILL BE AFFECTED BY THIS STORM THROUGH 5:30 PM. ROGOWSKI
The Sterling radar (KLWX), 61 km away, was scanning. The volume nearest the first event began at 21:01 UTC.
2 thunderstorm wind. Local standard time, as filed.
Numerous trees were downed and Hyde Field in Clinton reported damage.
A tree was downed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2003Every state in 2003This day in weather historyWarnings in Maryland, July 2003
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: 5368576, 5368577.