A strong cold front moving east across the Ohio Valley stalled as it moved over the Mid Atlantic. This allowed numerous showers and thunderstorms to develop across the region during the afternoon of July 16th.
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.
A strong cold front moving east across the Ohio Valley stalled as it moved over the Mid Atlantic. This allowed numerous showers and thunderstorms to develop across the region during the afternoon of July 16th. Many of these storms became severe, producing large hail and damaging winds that downed large trees and power lines. One severe thunderstorm that moved across Harford County produced a tornado.
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 16, 1:54 PM EST, 1 hour 38 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 254 PM EDT MON JUL 16 2007 .SYNOPSIS...A WARM HUMID AIR MASS WILL REMAIN IN PLACE ACROSS THE REGION TILL LATE FRI WHEN A COLD FRONT IS EXPECTED TO MOVE THROUGH THE REGION. CANADIAN HIGH PRES WILL BUILD IN FOR THE SECOND HALF OF THE WEEKEND. && .NEAR TERM /UNTIL 9 PM THIS EVENING/... SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 9 PM EDT. TSTMS XPCD TO BUILD NEWD WITH TIME WITH AN INCREASING THREAT OF DAMAGING WINDS AND HAIL. PLEASE SEE LATEST WARNINGS/STATEMENTS FOR UPDATES ON CURRENT CONVECTION. && .SHORT TERM /9 PM THIS EVENING THROUGH 6 PM TUESDAY/... WEAK FRONT/SFC TROUGH WILL MOVE SLOWLY SOUTH AND EAST TONIGHT. STORMS XPCD TO DISSIPATE BY MIDNIGHT WITH LOSS OF HEATING. TOMORROW...MORE STABLE AND LESS HUMID AIR WILL WORK IN AS A WEAK HIGH PRES TRIES TO BUILD IN. HAVE REMOVED MENTION OF TSTMS EVERYWHERE XPCPT FOR THE SRN SHEN VALLEY BY AUGUSTA/NELSON COUNTIES WHERE KEPT A 20 PERCENT. && .LONG TERM /TUESDAY NIGHT THROUGH MONDAY/... OVERALL PATTERN CONTINUES TO SHOW A RIDGE ACROSS THE WESTERN STATES AND A BROAD TROF ACROSS THE EAST COAST. ENSEMBLES AND LONG TERM GUIDANCE SUGGESTS THAT THE UPPER LOW OVER EASTERN CANADA WILL CONTINUE TO DOMINATE THE WEATHER OVER OUR REGION THROUGH MUCH OF THE PERIOD. FORECAST AREA WILL BE ON THE SOUTHERN EDGE OF THE EAST COAST TROF SO WARM AND HUMID WEATHER TO CONTINUE UNTIL A FRONTAL PASSAGE EARLY FRIDAY. AS A RESULT...WILL KEEP MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS IN FORECAST THROUGH FRIDAY. THE BEST CHANCE FOR WIDESPREAD SHOWERS AND THUNDERSTORMS WILL BE THURSDAY NIGHT AS A STRONG COLD FRONT TRACKS THROUGH REGION. UPPER TROF WILL AMPLIFY ACROSS EAST COAST BY THE END OF THE WEEK WITH AN UPPER LOW...PER GFS...SLIDING ACROSS PA. THIS SHOULD RESULT IN MUCH LOWER HUMIDITIES AND COOLER TEMPERATURES FOR THE UPCOMING WEEKEND. TEMPERATURES IN GENERAL LOOK TO BE SLIGHTLY ABOVE SEASONAL NORMS. && .AVIATION /19Z MONDAY THROUGH SATURDAY/...SCATTERED THUNDERSTORMS THRU ABT 00Z THE MAIN CONCERN. MVFR/IFR FOG POSSIBLE AT CHO TOMORROW MORNING WHERE RAIN HAS FALLEN THE HEAVIEST THIS AFTERNOON. SCT TSTMS AGAIN WED-THU IN WARM HUMID AIR MASS. && .MARINE...WINDS GENERALLY LESS THAN 10 KTS. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...NONE. MD...NONE. VA...NONE. WV...NONE. MARINE...NONE. && PRODUCTS...ROSA/RW
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 227 PM EDT MON JUL 16 2007 ANZ530>537-DCZ001-MDZ003>007-009>011-013-014-016>018-501-502- VAZ021-025>031-036>042-050>057-WVZ050>055-501>504-171000- CHESAPEAKE BAY NORTH OF POOLES ISLAND MD- CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT MD- CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD- CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD- CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA- TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD MD- TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND MD- TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA- DISTRICT OF COLUMBIA-WASHINGTON-FREDERICK MD-CARROLL- NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE- PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT- EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-HIGHLAND- AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE- NELSON-ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-FAUQUIER-LOUDOUN- ORANGE-CULPEPER-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX- ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- KING GEORGE-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-HARDY- WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL- 227 PM EDT MON JUL 16 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MARYLAND WEST OF THE EASTERN SHORE INCLUDING THE CHESAPEAKE BAY AND EAST OF GARRETT COUNTY...EASTERN WEST VIRGINIA...NORTHERN AND CENTRAL VIRGINIA... WASHINGTON DC AND THE TIDAL POTOMAC RIVER. .DAY ONE...THIS AFTERNOON AND TONIGHT A SEVERE THUNDERSTORM WATCH IS NOW IN EFFECT UNTIL 9 PM FOR AREAS EAST OF THE BLUE RIDGE MOUNTAINS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY AFTERNOON AND EVENING THUNDERSTORMS ARE POSSIBLE DAILY TUESDAY THROUGH THROUGH FRIDAY. ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION HAS BEEN ACTIVATED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 254 PM EDT MON JUL 16 2007 VAZ036-161930- NELSON VA- 254 PM EDT MON JUL 16 2007 ...STRONG THUNDERSTORMS TO AFFECT NELSON COUNTY... AT 254 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 11 MILES WEST OF TYRO...MOVING EAST AT 25 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. THE COMMUNITIES OF LOVINGSTON AND WINTERGREEN WILL BE AFFECTED BY THIS STORM. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE WARNINGS ARE ISSUED. MANNING
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 320 PM EDT MON JUL 16 2007 VAZ056-161945- SPOTSYLVANIA VA- 320 PM EDT MON JUL 16 2007 ...STRONG THUNDERSTORMS TO AFFECT SPOTSYLVANIA COUNTY... AT 320 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER GLENORA...MOVING EAST AT 25 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. THE COMMUNITIES OF GATEWOOD AND PARTLOW WILL BE AFFECTED BY THIS STORM. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE WARNINGS ARE ISSUED. MANNING
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
331 PM EDT MON JUL 16 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0220 PM TSTM WND DMG 1 SE EARLYSVILLE 38.15N 78.47W
07/16/2007 ALBEMARLE VA FIRE DEPT/RESCUE
TREES AND WIRES DOWN.
0235 PM TSTM WND DMG CHARLOTTESVILLE 38.04N 78.49W
07/16/2007 CITY OF CHARLOTTES VA FIRE DEPT/RESCUE
TREES DOWN ON A HOUSE.
0240 PM TSTM WND DMG STONY POINT 38.11N 78.37W
07/16/2007 ALBEMARLE VA FIRE DEPT/RESCUE
TREES AND WIRES DOWN NEAR RT 20 AND PROFITT RD.
&&
SMZSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 332 PM EDT MON JUL 16 2007 VAZ036-037-162000- NELSON VA-ALBEMARLE VA- 332 PM EDT MON JUL 16 2007 ...STRONG THUNDERSTORMS TO AFFECT NELSON AND ALBEMARLE COUNTIES... AT 332 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 2 MILES NORTHWEST OF ALBERENE TO 3 MILES WEST OF ROSELAND...MOVING EAST AT 15 MPH. THESE STORMS WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. THE COMMUNITIES OF SCHUYLER...LOVINGSTON...ESMONT AND SHIPMAN WILL BE AFFECTED BY THESE STORMS. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE WARNINGS ARE ISSUED. MANNING
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
334 PM EDT MON JUL 16 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0721 PM HAIL 2 SW AIRLIE 38.74N 77.82W
07/15/2007 E0.75 INCH FAUQUIER VA FIRE DEPT/RESCUE
REPORTED NEAR WARRENTON
&&
GMSSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 358 PM EDT MON JUL 16 2007 MDZ018-162030- CALVERT MD- 358 PM EDT MON JUL 16 2007 ...STRONG THUNDERSTORM TO AFFECT CALVERT COUNTY... AT 358 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 2 MILES SOUTH OF BARSTOW...MOVING EAST AT 10 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. THE COMMUNITIES OF PRINCE FREDERICK...PORT REPUBLIC...LONG BEACH AND LUSBY WILL BE AFFECTED BY THIS STORM. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE WARNINGS ARE ISSUED. MANNING
The Sterling radar (KLWX), 102 km away, was scanning. The volume nearest the first event began at 20:32 UTC.
5 thunderstorm wind, 3 hail, 1 tornado. Local standard time, as filed.
Calvert County Emergency Management relayed a public report of quarter size hail southwest of Saint Leonard, MD.
Calvert County Emergency Management relayed a public report of large tree limbs down southwest of Saint Leonard, MD.
Baltimore County Emergency Management reported a tree down near Corbett Road north of Phoenix, MD., and a tree down near Old York Road near Troyer, southeast of Monkton. A Newspaper reported that more than 40 trees were downed on private property off Corbett Road in Monkton. The home on the property sustained minor damages, including a broken window and missing roof shingles.
Harford County Emergency Management reported multiple trees down near Connolly Road in Fallston.
An NWS Storm Survey concluded that an EF1 tornado on the Enhanced Fujita Scale occurred near Fallston, MD., on July 16th. Maximum path width was 150 yards and the length was approximately 4 miles. There was extensive tree damage, with some softwood trees snapped and many hardwoods toppled. Structural damage observed was limited to trees and limbs falling onto structures. Many power lines were also downed. No injuries were reported.
A Trained Spotter reported quarter size hail in Fallston.
Frederick County Emergency Management reported trees down on Highway 340 north of Brunswick, MD.
Trained Spotters reported penny and nickel size hail in Brunswick, MD.
Frederick County Emergency Management reported trees down west of Libertytown, MD.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2007Every state in 2007This day in weather historyThe tornado archive for Maryland, 2007Warnings in Maryland, July 2007
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: 47544, 47562, 47548, 47550, 47555, 47556, 47557, 47558, 47559.