Upper Level disturbances combined with a warm and unstable airmass to produce widespread showers and thunderstorms across the Mid Atlantic. Some of these storms became severe, producing large hail and damaging winds across portions of the eastern pan handle of West Virginia during the afternoon and evening of June 12th.
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.
Upper Level disturbances combined with a warm and unstable airmass to produce widespread showers and thunderstorms across the Mid Atlantic. Some of these storms became severe, producing large hail and damaging winds across portions of the eastern pan handle of West Virginia during the afternoon and evening of June 12th.
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 12, 1:27 PM EST, 5 hours 11 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 227 PM EDT TUE JUN 12 2007 .SYNOPSIS... A CUT OFF LOW OVER THE WRN ATLC WILL BE RESPONSIBLE FOR UNSETTLED WEATHER ALONG THE EASTERN SEABOARD NEXT TWO DAYS. HIGH PRES WILL THEN BUILD SOUTH FROM NEW ENGLAND THURS THROUGH SAT. && .NEAR TERM /UNTIL 8 PM THIS EVENING/... SVR TSTM WATCH IN EFFECT TIL 8PM. GREATEST THREAT IS LARGE HAIL WITH WBZ OF AROUND 10KFT AND CAPE UP TO 1500 J/KG. ACTIVITY OVER NE PA AND NJ ATTM WILL CONTINUE TO PROPAGATE TO THE SW THROUGH EARLY EVENING. PLEASE SEE LATEST NOW/SPS/SVR WARNINGS FOR UPDATES ON CONVECTION. && .SHORT TERM /8 PM THIS EVENING THROUGH 6 PM WEDNESDAY/... ACTIVITY SHOULD WANE THIS EVENING WITH LOSS OF HEATING BUT STILL CANT RULED OUT ISOLD SHOWERS OVERNIGHT. MODEL GUIDANCE ALSO SUGGEST MARINE LYR WILL START ADVECTING INLAND TOWARD DAYBREAK. DISTURBANCES ROTATING AROUND WRN ATLC UPPER LOW WILL MAINTAIN THE THREAT FOR SHOWERS AND THUNDERSTORMS. HOWEVER...MAIN DIFFERENCE TO TODAY IS THAT IT APPEARS THAT THERE WILL BE MORE CLOUDS AND ATMOSPHERE WILL BE MORE STABLE AS A RESULT. MODEL SOUNDINGS SHOW A STRENGTHENING SUBSIDENCE INVERSION ALOFT OVR THE EAST AND ALG THE BAY SO THUNDER MAY BE JUST CONFINED TO W OF THE BLUE RIDGE MTNS. ATTM...INSTABILITY DOES NOT LOOK HIGH ENOUGH TO SUPPORT A SVR THREAT. && .LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/... A CUT OFF LOW WILL CONTINUE TO SPIN ACROSS THE WESTERN ATLANTIC WHILE A STRONG RIDGE OF HIGH PRESSURE REMAINS CENTERED OVER THE WESTERN GREAT LAKES. THIS WILL PROVIDE A NORTHERLY FLOW ALOFT...BRINGING COOL CONDITIONS FOR THIS TIME OF YEAR. ALSO...A SURFACE HIGH OVER NEW ENGLAND WILL SLOWLY BUILD SOUTH ALONG THE MID ATLANTIC COAST HELPING TO PUSH A BACKDOOR COLD FRONT THROUGH THE REGION...ENHANCING THE MARINE FLOW. AS FOR PRECIP...PLENTY OF LOW LEVEL MOISTURE AND WEAK FORCING FROM THE BACK DOOR FRONT WILL BRING THE CHANCE FOR SHOWERS AND THUNDERSTORMS WEDNESDAY NIGHT...ESPECIALLY ACROSS THE WESTERN ZONES DURING THE EVENING. THERE MAY STILL BE ISOLATED SHOWERS ACROSS THE WESTERN ZONES FOR THURSDAY AND THURSDAY NIGHT CLOSER TO WHERE THE BOUNDARY IS EXPECTED TO STALL OUT. FRIDAY AND FRIDAY NIGHT: HIGH PRESSURE WILL CONTINUE TO BUILD SOUTH OVER THE REGION. TEMPERATURES FRIDAY WILL CONTINUE TO BE BELOW NORMAL FOR THIS TIME OF YEAR. MOST PLACES WILL BE DRY FRIDAY...BUT WE LEFT ISOLATED SHOWERS IN THE FORECAST ACROSS THE EXTREME SOUTHWEST CLOSER TO THE STALLED BOUNDARY. SATURDAY THROUGH TUESDAY: THE UPPER LEVEL LOW OVER THE WESTERN ATLANTIC WILL SLOWLY MOVE OFF TO THE NORTHEAST ALLOWING FOR A WARMING TREND ALONG WITH SOME MORE SUNSHINE AS WELL. THERE IS STILL THE SLIGHT CHANCE FOR A SHOWER OR THUNDERSTORM SUNDAY AS A WEAK BOUNDARY APPROACHES BUT AT THIS TIME MOST PLACES SHOULD TURN OUT DRY. && .AVIATION /18Z TUESDAY THROUGH SUNDAY/... SCT TSTMS THRU 0Z. MVFR CIGS TOMORROW MORNING WITH MARINE PUSH AND AGAIN THU MORNING. TSTM THREAT NOT AS HIGH TOMORROW. && .MARINE...EAST WINDS GENERALLY LESS THAN 10 KTS. SCT TSTMS THRU EARLY THIS EVENING. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...NONE. MD...NONE. VA...NONE. WV...NONE. MARINE...NONE. && SYNOPSIS...LFR NEAR TERM...LFR SHORT TERM...LFR LONG TERM...BJL AVIATION...LFR MARINE...BJL
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 108 PM EDT TUE JUN 12 2007 ANZ530>537-DCZ001-MDZ003>007-009>011-013-014-016>018-501-502- VAZ021-025>031-036>042-050>057-WVZ050>055-501>504-131000- 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- 108 PM EDT TUE JUN 12 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 SEVERE THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EARLY THIS EVENING ACROSS THE AREA. AN UPPER LEVEL DISTURBANCE OVER THE NORTHEAST WILL MOVE TO THE SOUTHWEST THIS AFTERNOON. THUNDERSTORMS ARE EXPECTED TO DEVELOP EARLY THIS AFTERNOON OVER PENNSYLVANIA AND NEW JERSEY AND MOVE TO THE SOUTHWEST INTO THE AREA. THE ATMOSPHERE ALOFT IS VERY COLD AND HAIL IS EXPECTED FROM THE STRONGEST STORMS THIS AFTERNOON. THE MOST LIKELY TIME FOR SEVERE WEATHER IS BETWEEN 2 AND 4 PM ACROSS CENTRAL AND NORTHERN MARYLAND...AND BETWEEN 4 AND 6 PM FURTHER SOUTH ACROSS NORTHERN VIRGINIA THE DISTRICT OF COLUMBIA AND SOUTHERN MARYLAND. THUNDERSTORMS ARE EXPECTED TO WEAKEN AS SUNSET APPROACHES. THE PRIMARY RISK FROM SEVERE THUNDERSTORMS THIS AFTERNOON WILL BE LARGE HAIL UP TO HALF DOLLAR SIZE. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NECESSARY THIS AFTERNOON AND EARLY EVENING. MANNING
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
615 PM EDT TUE JUN 12 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0530 PM TSTM WND DMG SILVER SPRING 39.00N 77.05W
06/12/2007 MONTGOMERY MD FIRE DEPT/RESCUE
POWERLINES DOWNED.
&&
MANNINGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
627 PM EDT TUE JUN 12 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0617 PM HAIL CLINTON 38.76N 76.90W
06/12/2007 E2.00 INCH PRINCE GEORGES MD BROADCAST MEDIA
MEDIA RELAYED REPORT OF 2 INCH DIAMETER HAIL IN CLINTON.
&&
MANNINGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
643 PM EDT TUE JUN 12 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0635 PM HAIL INWOOD 39.35N 78.05W
06/12/2007 E1.00 INCH BERKELEY WV AIRPLANE PILOT
AMATEUR RADIO REPORT OF QUARTER SIZED HAIL.
&&
MANNINGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
706 PM EDT TUE JUN 12 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0636 PM TSTM WND DMG LA PLATA 38.53N 76.97W
06/12/2007 CHARLES MD LAW ENFORCEMENT
SEVERAL TREES DOWN IN LAPLATA.
&&
SMZPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
727 PM EDT TUE JUN 12 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0647 PM TSTM WND DMG NEW BALTIMORE 38.77N 77.73W
06/12/2007 FAUQUIER VA LAW ENFORCEMENT
TREE DOWN ON A HOUSE.
0705 PM TSTM WND DMG WARRENTON 38.72N 77.80W
06/12/2007 FAUQUIER VA LAW ENFORCEMENT
TREES DOWN.
&&
SMZPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
732 PM EDT TUE JUN 12 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0642 PM TSTM WND DMG 2 S MANASSAS 38.72N 77.49W
06/12/2007 PRINCE WILLIAM VA AMATEUR RADIO
TREES DOWNED.
&&
MANNINGThe Sterling radar (KLWX), 100 km away, was scanning. The volume nearest the first event began at 23:36 UTC.
5 thunderstorm wind, 1 hail. Local standard time, as filed.
Law Enforcement reported a tree down on River Road 3 miles Northeast of Shady Grove, WV.
Law Enforcement reported numerous trees down from Springfield to Romney.
Law Enforcement reported ping-pong ball size hail in Romney, WV.
Law Enforcement reported several downed trees and power lines near Keyser, WV.
Law Enforcement reported trees down along US Route 220 near the Hardy and Hampshire County line. Trees were also down on Oldfields Road near Shockey Road in Oldfields, WV.
Law Enforcement reported trees down in Petersburg, WV.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in West Virginia in 2007Every state in 2007This day in weather historyWarnings in West Virginia, 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: 31023, 31024, 31025, 31026, 31027, 31028.