An upper-level disturbance passed through the region while a pressure trough at the surface remained nearly stationary. These systems provided the forcing to combine with a warm and humid air mass to bring showers and thunderstorms to the area.
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.
An upper-level disturbance passed through the region while a pressure trough at the surface remained nearly stationary. These systems provided the forcing to combine with a warm and humid air mass to bring showers and thunderstorms to the area. There was enough instability along with stronger winds aloft for some thunderstorms to produce large hail and damaging winds.
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 4, 10:13 AM EST, 3 hours 37 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1113 AM EDT FRI JUN 4 2010 .SYNOPSIS... A WARM AND MOIST AIRMASS WILL REMAIN IN PLACE OVER THE REGION THROUGH SUNDAY. SCATTERED THUNDERSTORMS ARE EXPECTED...ESPECIALLY DURING THE AFTERNOONS AND EVENINGS. A COLD FRONT WILL MOVE ACROSS THE REGION ON SUNDAY. COOLER...DRIER CONDITIONS ARE EXPECTED BEHIND THE FRONT EARLY NEXT WEEK. && .NEAR TERM /THROUGH TONIGHT/... A FEW CHGS MADE FROM PREV FCST REGARDING WX TDA. LITTLE CHG IN AMS HAS OCCURRED SINCE YDA...WITH TEMPS POISED TO REACH UPR 80S-LWR 90S ONCE AGAIN. AS A RESULT...STEEP LOW-LVL LAPSE RATES WILL DVLP AGAIN TDA WHILE BNDRY LYR DEWPTS RMN IN THE MID-UPR 60S...NEAR 70 ALONG THE CHSPK BAY. MODIFIED MRNG SOUNDING SHOWS CAPE OF 1500-2000 J/KG AVAILABLE THIS AFTN. SHEAR THIS MRNG WAS WEAK...BUT UPPER AIR ANALYSIS SHOWS THE LEADING EDGE OF A WIND MAXIMUM ACRS ERN IL. THIS MAXIMUM IS IN ASSOCIATION WITH MCV OR SHRTWV TROF NOTED ON RADAR AND UPPER AIR OBSERVATIONS. IF THIS WAVE CONTS AT ITS CURRENT SPEED...IT WOULD ARRIVE IN WV AROUND PEAK HEATING...20-21Z...CONCURRENT WITH INCRG MID-LVL WIND SPEEDS. GIVEN POTENTIAL SOURCE FOR LIFT AND INCRD SHEAR...THE BAY BREEZE... A WEAK PRESSURE TROF...AND TERRAIN CIRCULATIONS XPCD TO PROVIDE FOCI FOR CNVCTV DVLPMT THIS AFTN AND EVE. A FEW SVR TSTMS SEEM PSBL LATE THIS AFTN. POPS WERE INCRD...SPCLY ACRS THE SWRN HALF OF FCST AREA. CNVCTN SHUD DECR IN CVRG OVNGT AS HEATING WANES. SOME HIGH CLDS MAY RMN AS MID- AND UPR-LVL JETS MOVE INTO THE RGN. VERY BALMY MINIMA XPCD GIVEN MSTR CONTENT OF AMS. PREV DISCUSSION FOLLOWS... TDA SHOULD BE THE DAY BTWN SVR STORMS. GNRL UPR LVL FLOW IS ZNL ACROSS THE NRN U.S. W/ SHORT WVS MOVG THRU. YDA AFTN SAW ONE OF THOSE SHRT WVS...IT LOOKS LK THERE WL BE ANOTHER ON SAT. TDA LOOKS LK MD ATLC WL HV PC/MC SKIES W/ WK CD FN ACROSS PA. BEING ON THE WARM/MOIST SIDE OF THE BNDRY MEANS THAT CWA COULD XPRNC AFTN/EVE CNVCTN...AND BUFKIT SNDGS SHOW CAPE INXS OF 1000 DURG MID-LATE AFTN...SO ENTIRE CWA WL BE IN SCT TRW 19-23Z. AFTN HIGHS ARND 90 MUCH OF THE AREA. CNVCTV CHCS WL CONTINUE DURG THE EVE HRS BEFORE AREA SETTLES DOWN OVRNGT. TNGT SKY-WISE SHOULD BE FAIRLY SIMILAR TO WHAT IS GOING ON CURRENTLY - PC/MC AS ZNL FLOW CONTINUES. LOWS TO RANGE FM LM70S IN THE CITIES TO LM60S IN THE HIGHLANDS. && .SHORT TERM /SATURDAY/... WEAK SFC LOPRES WILL RMN OVER NEW ENGLAND SAT WITH WARM AND MOIST AMS PERSISTING ACRS MUCH OF ERN CONUS. WEAK SFC TROF WILL BE DRAPED ACRS FCST AREA. VERY LOW-AMPLITUDE SHRTWV TROF FCSTD TO MOVE THRU QUASI-ZONAL FLOW INTO THE RGN BY SAT AFTN. INSTBY XPCD TO CHG VERY LITTLE FROM TDA...BUT SHEAR WILL INCR. THUS...A BETTER DEGREE OF ORGANIZATION TO TSTMS IS ANTICIPATED. NO SGFNT CHG IS NEEDED TO PREV GENL FCST...BUT POPS WERE INCRD AREA WIDE TO HIGH END CHC. && .LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/... ANOTHER WAVE OF LOW PRESSURE WILL PASS BY TO OUR NORTH OVERNIGHT SATURDAY. THERE IS STILL SOME UNCERTAINTY TO THE EXACT TRACK OF THIS SYSTEM...BUT SHOULD IT TRACK CLOSE ENOUGH IT COULD BRING ADDITIONAL SHOWERS AND THUNDERSTORMS...ESPECIALLY ACROSS THE NORTHERN AND WESTERN PORTION OF THE CWA. A COLD FRONT WILL PASS THROUGH THE REGION SUNDAY...BRINGING A CHANCE FOR SHOWERS AND THUNDERSTORMS. THERE WILL BE ENOUGH INSTABILITY AHEAD OF THE FRONT TO COMBINE STRENGTHENING SHEAR PROFILES FOR THE POSSIBILITY OF SEVERE T-STORMS. HIGH PRESSURE WILL BUILD OVERHEAD BEHIND THE FRONT EARLY NEXT WEEK...BRINGING COOLER AND LESS HUMID CONDITIONS ALONG WITH SOME SUNSHINE. THE HIGH WILL SHIFT OFF THE COAST DURING THE MIDDLE AND LATTER PORTION OF NEXT WEEK AND A RETURN FLOW WILL BRING MORE HUMID CONDITIONS. A SERIES OF UPPER-LEVEL DISTURBANCES WILL COMBINE WITH MORE HUMIDITY TO BRING INCREASING CHANCES FOR CONVECTION DURING THIS TIME. && .AVIATION /13Z FRIDAY THROUGH TUESDAY/... LGT WINDS WILL BE COMMON TDA AT ALL TERMINALS. CU FIELD DVLPG AMID UNSTABLE AMS...WITH TSTMS XPCD TO FORM THIS AFTN. TIMES THAT ANY TSTMS MIGHT IMPACT TERMINALS IS UNCLEAR...BUT 20-22Z SEEMS A REASONABLE GENL TIMEFRAME. WILL ATTEMPT TO REFINE THIS TIMING WITH THE NEXT TAF ISSUANCE. SOME TSTMS COULD PRODUCE HAIL OR DMGG WIND GUSTS. CNVCTN SHUD DECR IN CVRG OVNGT WITH LGT WINDS AND FOG PSBL AT TERMINALS. SVR TSTMS LKLY AGAIN SAT AFTN WITH SUB-VFR VSBYS IN RAIN. HAIL AND WIND WILL ACCOMPANY THESE TSTMS. TSTMS PSBL ONCE AGAIN ON SUN AS CDFNT MOVES INTO RGN. ASIDE FROM THE CONVECTION...VFR CONDITIONS WILL PREVAIL FOR MOST OF THE TIME. THE ONLY OTHER EXCEPTION WILL BE DURING THE EARLY MORNING HOURS WHERE PATCHY BR MAY LEAD TO A BRIEF PERIOD OF SUBVFR VSBYS. HIGH PRESSURE WILL BUILD OVERHEAD BEHIND A COLD FRONT MONDAY INTO TUESDAY. && .MARINE... LGT WINDS XPCD THRU TNGT ON WATERS...ALTHOUGH TSTMS PSBL. ANY TSTMS THIS AFTN AND EVE WILL BE CAPABLE OF GUSTY WINDS AND LARGE HAIL AND MAY REQUIRE SPECIAL MARINE WRNGS. SCT TSTMS XPCD SAT AND SUN AS A WARM...MOIST AMS RMNS IN PLACE. SOME TSTMS WILL BE SVR...CAPABLE OF LARGE HAIL AND DMGG WIND GUSTS. SPECIAL MARINE WRNGS ARE LKLY BOTH DAYS. A COLD FRONT WILL PASS THROUGH THE WATERS LATE SUNDAY. SCA WINDS ARE POSSIBLE AHEAD OF THE FRONT SUNDAY AFTERNOON AND AGAIN BEHIND THE FRONT SUNDAY NIGHT. HIGH PRESSURE WILL BUILD OVER THE WATERS FOR MONDAY AND TUESDAY. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...NONE. MD...NONE. VA...NONE. WV...NONE. MARINE...NONE. && UPDATE...KRAMAR PREV DISCUSSION...WOODY!/LASORSA
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 237 PM EDT FRI JUN 4 2010 ANZ530>543-DCZ001-MDZ006-007-011-013-014-016>018-VAZ052>057- 051000- 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- PATAPSCO RIVER INCLUDING BALTIMORE HARBOR- CHESTER RIVER TO QUEENSTOWN MD-EASTERN BAY- CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER- PATUXENT RIVER TO BROOMES ISLAND MD- TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-DISTRICT OF COLUMBIA-NORTHERN BALTIMORE-HARFORD- SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS- CALVERT-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX- ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- KING GEORGE- 237 PM EDT FRI JUN 4 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MARYLAND PORTION OF THE CHESAPEAKE BAY...TIDAL POTOMAC RIVER...AND ADJACENT COUNTIES IN CENTRAL MARYLAND AND NORTHERN VIRGINIA AS WELL AS THE DISTRICT OF COLUMBIA. .DAY ONE...THIS AFTERNOON AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE OUTLOOK AREA. ISOLATED TO SCATTERED SEVERE THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING...CAPABLE OF LARGE HAIL AND DAMAGING WIND GUSTS. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ON SATURDAY FOR THE OUTLOOK AREA. SCATTERED SEVERE THUNDERSTORMS ARE EXPECTED AS A MOIST AND UNSTABLE AIR MASS REMAINS IN PLACE. THESE STORMS WILL BE CAPABLE OF LARGE HAIL AND DAMAGING WIND GUSTS. ISOLATED TO SCATTERED SEVERE THUNDERSTORMS ARE POSSIBLE AGAIN ON SUNDAY. SOME STORMS COULD PRODUCE LARGE HAIL AND DAMAGING WIND GUSTS. A SMALL CRAFT ADVISORY LIKELY WILL BE NEEDED SUNDAY AND SUNDAY NIGHT FOR PORTIONS OF THE WATERS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NEEDED IN SUPPORT OF SEVERE THUNDERSTORM WATCH 255 THIS AFTERNOON AND EVENING. SPOTTER ACTIVATION LIKELY WILL BE NEEDED SATURDAY...AND MAY BE NEEDED SUNDAY. PLEASE RELAY ANY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE. MDZ003>005-009-010-501-502-VAZ021-025>031-036>040-042-050-051-501- 502-WVZ050>055-501>504-051000- WASHINGTON-FREDERICK MD-CARROLL-MONTGOMERY-HOWARD- EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-HIGHLAND- AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE- NELSON-ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORANGE- CULPEPER-NORTHERN FAUQUIER-SOUTHERN FAUQUIER-HAMPSHIRE-MORGAN- BERKELEY-JEFFERSON-PENDLETON-HARDY-WESTERN GRANT-EASTERN GRANT- WESTERN MINERAL-EASTERN MINERAL- 237 PM EDT FRI JUN 4 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN WEST VIRGINIA... NORTHERN AND CENTRAL VIRGINIA...AND CENTRAL AND WESTERN MARYLAND WITH THE EXCEPTION OF GARRETT COUNTY. .DAY ONE...THIS AFTERNOON AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS A LARGE PORTION OF THE OUTLOOK AREA. SCATTERED SEVERE THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING...CAPABLE OF LARGE HAIL AND DAMAGING WIND GUSTS. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ON SATURDAY FOR MUCH OF THE OUTLOOK AREA. SCATTERED SEVERE THUNDERSTORMS ARE EXPECTED ON SATURDAY AS A MOIST AND UNSTABLE AIR MASS REMAINS IN PLACE. THESE STORMS WILL BE CAPABLE OF LARGE HAIL AND DAMAGING WIND GUSTS. ISOLATED TO SCATTERED SEVERE THUNDERSTORMS ARE POSSIBLE AGAIN ON SUNDAY. SOME STORMS COULD PRODUCE LARGE HAIL AND DAMAGING WIND GUSTS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NEEDED IN SUPPORT OF SEVERE THUNDERSTORM WATCH 255 THIS AFTERNOON AND EVENING. SPOTTER ACTIVATION LIKELY WILL BE NEEDED SATURDAY...AND MAY BE NEEDED SUNDAY. PLEASE RELAY ANY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE. KRAMAR
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1207 PM EDT FRI JUN 04 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0500 PM TSTM WND DMG INDIAN HEAD 38.60N 77.16W
06/03/2010 CHARLES MD EMERGENCY MNGR
TREES AND WIRES DOWN AT LOWER WHARF ROAD AND MAIN
AVENUE AND BURLESON DRIVE
&&
EVENT NUMBER LWX1000369
PELOQUINPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1209 PM EDT FRI JUN 04 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0345 PM TSTM WND DMG 1 N CHARLOTTESVILLE 38.05N 78.48W
06/03/2010 ALBEMARLE VA TRAINED SPOTTER
FOCUSED WIND DAMAGE TO TREES AND POWER LINES REPORTED
IN NORTHERN PARTS OF CHARLOTTESVILLE... ESPECIALLY
PRESTON ROAD TO 250 BYPASS. 12 TO 18 INCH TREES SNAPPED
OR UPROOTED AND POWER LINES AND POLES DOWN IN THIS AREA.
&&
EVENT NUMBER LWX1000370
KRAMARPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1211 PM EDT FRI JUN 04 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0504 PM TSTM WND DMG BRYANS ROAD 38.63N 77.07W
06/03/2010 CHARLES MD EMERGENCY MNGR
TREES AND WIRES DOWN AT MARSHALL HALL ROAD AND FRASER
ROAD
&&
EVENT NUMBER LWX1000371
PELOQUINPRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1217 PM EDT FRI JUN 04 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0345 PM TSTM WND DMG 1 NNW CHARLOTTESVILLE 38.05N 78.50W
06/03/2010 ALBEMARLE VA TRAINED SPOTTER
THREE LARGE TREES DOWN...TWO UPROOTED...ON BARRACKS RD
BETWEEN EMMET RD AND RUGBY RD
&&
CORRECTED EVENT TIME
EVENT NUMBER LWX1000350
KRAMARSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 203 PM EDT FRI JUN 4 2010 VAZ026-027-WVZ054-055-041845- SHENANDOAH VA-PENDLETON WV-HARDY WV-ROCKINGHAM VA- 203 PM EDT FRI JUN 4 2010 ...STRONG THUNDERSTORMS TO AFFECT SHENANDOAH...PENDLETON...HARDY AND ROCKINGHAM COUNTIES... AT 204 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 5 MILES SOUTHWEST OF CRIDERS...MOVING EAST AT 20 MPH. STORM INTENSITY IS INCREASING...AND SEVERE WEATHER MAY DEVELOP RAPIDLY. REMAIN ALERT...AND BE PREPARED TO TAKE ACTION IF WARNINGS ARE ISSUED. WIND GUSTS OF 40 TO 50 MPH AND SMALL HAIL CAN BE EXPECTED WITH THIS STORM. && LAT...LON 3886 7884 3864 7877 3859 7917 3877 7922 TIME...MOT...LOC 1804Z 258DEG 19KT 3871 7906
The Sterling radar (KLWX), 130 km away, was scanning. The volume nearest the first event began at 18:52 UTC.
4 thunderstorm wind, 1 hail. Local standard time, as filed.
Several trees were down Yankeetown Road.
A wind gust was estimated around 60 mph near Yankeetown.
Half dollar size hail was reported on Ike Drive near Yankeetown.
A large tree was knocked down onto a school bus on Mill Creek Road.
Thirty large trees were uprooted along Mill Creek Crossroads.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Virginia in 2010Every state in 2010This day in weather historyWarnings in Virginia, June 2010
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: 239220, 239221, 239224, 239222, 239223.