A cold front moving south from Pennsylvania triggered scattered showers and thunderstorms across central Maryland. Some storms became severe, producing damaging winds in Frederick, Washington and Montgomery Counties.
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 cold front moving south from Pennsylvania triggered scattered showers and thunderstorms across central Maryland. Some storms became severe, producing damaging winds in Frederick, Washington and Montgomery Counties.
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 Jun 19, 9:47 AM EST, 4 hours 58 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1047 AM EDT TUE JUN 19 2007 .SYNOPSIS... A COLD FRONT WILL MOVE ACROSS THE REGION TODAY...TRIGGERING SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EVENING. HIGH PRESSURE WILL THEN REGAIN CONTROL THROUGH THE END OF THE WORKWEEK. A COLD FRONT WILL MOVE ACROSS THE FORECAST AREA LATE SATURDAY AND SUNDAY... BRINGING THE NEXT CHANCE FOR SHOWERS AND THUNDERSTORMS. && .NEAR TERM /UNTIL 5 PM THIS AFTERNOON/... GOING FCST GNLY ON TRACK. CWFA HAZY BUT OTRW CLR. CLDS BLDG IN THE UPR OHVLY ATTM...AND RGNL RADAR DEPICTS WDLY SCT TSRA ACRS OH/WRN PA/WRN NYS. MODIFIED 12Z IAD SNDG REVEALS A HIGH CAPE/LOW SHEAR ENVIRONMENT /MEAN LYR CAPE 2500J/KG/. SREF PROBABILITY GDNC SUGGESTING CAPES MORE LIKELY TO REACH 1000J/KG LVL. FCST MAXT WELL W/IN REACH FM RAOB FULL SUN TEMPS. JUST LIKE THE CAPES...THINK THE CLDS WL INHIBIT MAX HEATING...BUT WE SHUD BE ABLE TO REACH CNVCTV TEMPS FIRST. WK S/WV...DIFFERENTIAL HTG BNDRYS...TRRN...AND LEE TROFFING WL COMBINE TO INITIATE ACTIVITY. ERN CWFA MOST PRIMED FOR STRONG/SVR STORMS. WL KEEP ENHANCED WORDING IN PLACE...AND ADJUST POPS UPWD. MOST OTR CHGS MINOR. IT WL BE HOT BUT HIDX FALLS SHORT OF ADVY CRIT /105F/. NEW PKG FORTHCOMING. && .SHORT TERM /5 PM THIS AFTERNOON THROUGH 6 PM WEDNESDAY/... THE FRONT STILL LAGS WELL TO OUR WEST BY EVENING...SO EXPECT THUNDER TO CONTINUE WELL INTO THE NIGHT. THE COLD FRONT WILL BE OVER THE DELMARVA BY 12Z WEDNESDAY...WHILE THE UPPER TROUGH WILL BE FURTHER WEST OVER FAR WESTERN PENNSYLVANIA AND WEST VIRGINIA. THIS WILL FORCE THE MENTION OF SHOWERS AND THUNDERSTORMS TO REMAIN IN THE FORECAST ON WEDNESDAY FOR THE SOUTHEASTERN THIRD OF THE FORECAST AREA...PUSHING OFF THE COAST BY THE AFTERNOON. TEMPERATURES WILL BE NOTABLY COOLER WEDNESDAY COMPARED TO THE BEGINNING OF THE WEEK...WITH HIGHS ONLY REACHING THE MID 80S. && .LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/... HIGH PRESSURE WILL BUILD BEHIND THE DEPARTING COLD FRONT WEDNESDAY NIGHT AND CONTINUE ITS HOLD ON THE MID ATLANTIC THROUGH THE END OF THE WORK WEEK. THIS WILL HELP PROVIDE MOSTLY SUNNY/CLEAR SKIES AND NEAR NORMAL TEMPERATURES. NEXT COLD FRONT IS EXPECTED TO MAKE ITS WAY INTO THE REGION THIS WEEKEND. GFS MOS POPS GIVE SLIGHT CHANCE TO CHANCE POPS SATURDAY AND SUNDAY WITH THE FRONT. THE PREFRONTAL TROUGH WILL DEVELOP ALONG AND WEST OF THE BLUE RIDGE BY SATURDAY AFTERNOON AND THE FRONT WILL STALL OVER SOUTHER VIRGINIA SUNDAY. HIGH PRESSURE WILL EVENTUALLY REGAIN CONTROL FOR EARLY NEXT WEEK. && .AVIATION /15Z TUESDAY THROUGH SATURDAY/... MVFR HZ STILL AFFECTING ALL TAF SITES...AND WL AMD TAFS ACCRDGLY. STILL EXPECT THUNDERSTORMS TO START TO DEVELOP DURING THE EARLY AFTERNOON AND SHOULD BE MOVING ACROSS THE FORECAST AREA DURING THE MID AFTERNOON THROUGH AT LEAST THE FIRST HALF OF THE NIGHT. WINDS SHOULD REMAIN WITH A SOUTHERLY COMPONENT THROUGH TODAY AND THE FIRST HALF OF TONIGHT. NO ADDITIONAL AVIATION CONCERNS DURING THE MID TO LATE WEEK. SHOWERS AND TSRA ARE AGAIN POSSIBLE DURING THE WEEKEND WITH A COLD FRONT. && .MARINE... WIND GUSTS ON THE BAY MAY JUST REACH SMALL CRAFT CRITERIA THIS EVENING OF 15 TO 20 KT. WILL STILL HOLD WITH 15 KT FOR NOW. EXPECT ONLY A FEW HOURS OF POSSIBLE CRITERIA WINDS IF THEY OCCUR...AND THOSE WNDS WUD BE SURROUNDED BY LCLLY HIER WNDS/WVS DUE TO TSTMS. WINDS WILL APPROACH SMALL CRAFT ADVISORY CRITERIA WEDNESDAY AFTERNOON AS NORTHWEST WINDS INCREASE BEHIND THE FRONT. WIND SPEEDS AND GUSTS ARE MARGINAL AT THIS POINT...SO WILL NOT RAISE THE ADVISORY WITH THIS PACKAGE. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...NONE. MD...NONE. VA...NONE. WV...NONE. MARINE...NONE. && SYNOPSIS...SAR NEAR TERM...HTS SHORT TERM...SAR/STRONG LONG TERM...SAR AVIATION...HTS/STRONG/SAR MARINE...HTS/STRONG/SAR
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1131 AM EDT TUE JUN 19 2007 ANZ530>537-DCZ001-MDZ003>007-009>011-013-014-016>018-501-502- VAZ021-025>031-036>042-050>057-WVZ050>055-501>504-201015- 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- 1131 AM EDT TUE JUN 19 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 HEAT INDEX VALUES WILL REACH THE MID 90S TO AROUND 100 THIS AFTERNOON ACROSS THE FORECAST AREA. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING. THUNDERSTORMS WILL MOVE ACROSS THE AREA THIS AFTERNOON THROUGH TONIGHT. SOME OF THESE STORMS ARE EXPECTED TO PRODUCE DAMAGING WINDS AND LARGE HAIL. THE BEST CHANCE FOR SEVERE WEATHER IS BETWEEN 3 PM AND 9 PM. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS ANTICIPATED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE REQUIRED TODAY. HTS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 150 PM EDT TUE JUN 19 2007 WVZ504-191815- EASTERN MINERAL WV- 150 PM EDT TUE JUN 19 2007 ...STRONG THUNDERSTORMS TO AFFECT EASTERN MINERAL COUNTY... AT 150 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER RIDGEVILLE...MOVING EAST AT 10 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. THE COMMUNITIES OF KEYSER...FORT ASHBY...HEADSVILLE AND BURLINGTON 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 221 PM EDT TUE JUN 19 2007 VAZ028-WVZ050-191845- HAMPSHIRE WV-FREDERICK VA- 221 PM EDT TUE JUN 19 2007 ...STRONG THUNDERSTORMS TO AFFECT EASTERN HAMPSHIRE AND NORTHERN FREDERICK COUNTIES... AT 221 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER CAPON BRIDGE...MOVING EAST AT 10 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. THE COMMUNITIES OF WHITACRE...BLOOMERY AND CROSS JUNCTION 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
309 PM EDT TUE JUN 19 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0301 PM HAIL CAPON BRIDGE 39.30N 78.44W
06/19/2007 E1.00 INCH HAMPSHIRE WV AMATEUR RADIO
AMATEUR RADIO REPORT OF QUARTER SIZED HAIL.
&&
MANNINGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
325 PM EDT TUE JUN 19 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0303 PM HAIL 2 W OMPS 39.50N 78.32W
06/19/2007 E1.75 INCH MORGAN WV EMERGENCY MNGR
&&
DECARUFLSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 329 PM EDT TUE JUN 19 2007 MDZ009-192000- MONTGOMERY MD- 329 PM EDT TUE JUN 19 2007 ...STRONG THUNDERSTORMS TO AFFECT MONTGOMERY COUNTY... AT 329 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES SOUTHEAST OF BEALLSVILLE...MOVING NORTHEAST AT 15 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. THE COMMUNITIES OF BOYDS...GERMANTOWN...MONTGOMERY VILLAGE AND DAMASCUS 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 345 PM EDT TUE JUN 19 2007 VAZ027-192015- SHENANDOAH VA- 345 PM EDT TUE JUN 19 2007 ...STRONG THUNDERSTORMS TO AFFECT SHENANDOAH COUNTY... AT 345 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 2 MILES SOUTHEAST OF QUICKSBURG...MOVING NORTHEAST AT 20 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. THE COMMUNITY OF MOUNT JACKSON WILL BE AFFECTED BY THIS STORM. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE WARNINGS ARE ISSUED. MANNING
The Sterling radar (KLWX), 100 km away, was scanning. The volume nearest the first event began at 19:46 UTC.
3 thunderstorm wind. Local standard time, as filed.
Law Enforcement reported trees down on a vehicle.
Amateur Radio reported numerous trees and power lines down near Route 109 and Interstate 270.
Law Enforcement reported trees down south of Ijamsville, 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 historyWarnings in Maryland, June 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: 31531, 31532, 31533.