A surface trough remained over Virginia while a series of upper-level disturbances passed through in a zonal flow aloft. Hot and humid conditions led to moderate amounts of instability.
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 surface trough remained over Virginia while a series of upper-level disturbances passed through in a zonal flow aloft. Hot and humid conditions led to moderate amounts of instability. Some thunderstorms that developed were able to produce damaging winds due to the instability.
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 19, 2:27 PM EST, 2 hours 17 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 327 PM EDT MON JUL 19 2010 .SYNOPSIS... A WARM...MOIST AIRMASS WILL REMAIN OVER THE MID-ATLANTIC REGION THROUGH THE WEEK. A SERIES OF UPPER-LEVEL DISTURBANCES WILL INTERACT WITH THIS AIRMASS TO YIELD DAILY THUNDERSTORM CHANCES. INCREASING HEAT IS EXPECTED LATE IN THE WEEK. && .NEAR TERM /THROUGH TUESDAY/... CDFNT LOCATED ATTM ACRS WRN PA AND NRN OH. SFC TROF NOTED FROM CNTRL PA SWWD THRU SHENANDOAH VLY. AMS AHEAD OF SFC TROF IS CHARACTERIZED BY HIGH BNDRY LYR MSTR AND SSWLY WINDS...WHICH WILL REINFORCE LOW-LVL MSTR. CLD CVR THAT HAD INHIBITED HEATING THIS MRNG HAS CLRD...INVIGORATING A CU FIELD OVER MUCH OF FCST AREA THIS AFTN. SHRA AND TOWERING CU ARE NOTED IN ISOLD CVRG ALONG SFC TROF AXIS AND ALONG RESIDUAL BNDRYS FROM OVNGT/MRNG CNVCTN. AS SFC TROF SHARPENS FURTHER AND CDFNT APRCHS...A LOOSELY ORGANIZED CLUSTER OF TSTMS SHUD FORM...SPCLY ACRS N-CNTRL MD AND VCTY WASHINGTON DC... WHERE HEATING HAS BEEN SHARPEST. DESPITE APPARENT CONTAMINATION IN MID-LVLS OF MRNG RAOB...INSTBY PRESENT AS NOTED BY STEEP LOW-LVL LAPSE RATES. THESE STEEP LAPSE RATES WILL SUPPORT STG DOWNDRAFTS IN ANY DP CNVCTN. SVR THREAT HAS BEEN HIGHLIGHTED IN HWO. HIPRES MOVES INTO RGN BRIEFLY TUE MRNG BEHIND CDFNT...BUT EXITS INTO ATLC EARLY TUE AFTN. MESOSCALE VORTEX OR SHRTWV TROF INDUCED BY MIDWESTERN CNVCTN TNGT SHUD PROVIDE LIFT FOR CNVCTV DVLPMT TUE AFTN AND EVE...WITH CHCS INCRG LATE TUE AFTN AS WAVE APRCHS. ANY TSTMS MAY CONGEAL INTO A CNVCTV COMPLEX. && .SHORT TERM /TUESDAY NIGHT/... 12Z GFS/NAM MODELS PORTRAY A GREAT LAKES/OH VALLEY MCS MOVING THRU THE NRN MID-ATLANTIC TUE NGT. WHILE DEEP-LAYER SHEAR PROFILES STRENGTHEN WITH THE APPROACH OF DISTURBANCE...INSTABILITY PARAMETERS DO NOT APPEAR CONDUCIVE FOR SEVERE WX...ESPECIALLY WITH THE LOSS OF DAYTIME HEATING OVNGT. THE BEST CHANCE FOR PRECIP TUE NGT WILL BE ACROSS NRN MD AS THE BEST UPPER SUPPORT ASSOCIATED WITH THE MCS TRACKS NORTH OF THE AREA. LOW TEMPS TUE NGT WILL RANGE FROM THE UPPER 60S ALONG AND WEST OF THE ALLEGHENY FRONT TO MID 70S IN THE CITIES AND ALONG THE COAST. && .LONG TERM /WEDNESDAY THROUGH MONDAY/... NOT TOO MANY CHANGES IN THE LONG TERM PERIOD. DURING THE SECOND HALF OF THIS WEEK AND THIS WEEKEND...THE MID-ATLANTIC REGION WILL BE SITUATED IN QUASI-ZONAL FLOW...BETWEEN THE NORTHEASTERN PERIPHERY OF THE BROAD UPPER RIDGE OVER THE SOUTHEASTERN CONUS AND THE STRONGER BELT OF WESTERLY FLOW NEAR THE US-CANADIAN BORDER. WITHIN THE ENHANCED WESTERLIES...A SERIES OF LOW-AMPLITUDE SHORTWAVE DISTURBANCES/MESOSCALE CONVECTIVE COMPLEXES WILL TRACK FROM THE UPPER MIDWEST INTO THE GREAT LAKES AND NORTHEAST REGIONS THRU THE END OF THE WEEK. THE TRACK OF THESE SYSTEMS IS FORECASTED TO SHIFT FARTHER NORTH WITH TIME AS THE UPPER RIDGE GRADUALLY BUILDS NORTHWARD. THEREFORE THE BEST CHANCE OF ORGANIZED CONVECTION EACH DAY RESIDES NORTH OF THE CWFA WITH 30-40 POPS TOWARD THE MASON- DIXON LINE...LESS FARTHER SOUTH. A WEAK FRONTAL BOUNDARY WILL SAG SOUTHWARD WED. DEPENDING ON THE AMOUNT OF BREAKS IN THE CLDS ON WED...AND THUS CAN DEVELOP MODERATE INSTABILITY...THERE WOULD BE A POTENTIAL FOR SOME STORMS TO BECOME SEVERE DURING THE AFTN AND EVE WITH DEEP-LAYER SHEAR PROFILES INCREASING TO 30-40 KT. EXTENDED-RANGE MODELS ADVERTISE A STRONGER SHORTWAVE TROUGH AND COLD FRONT APPROACHING LATE SAT INTO SUN. AHEAD OF THIS SYSTEM...SWLY DOWNSLOPING FLOW WOULD LEAD TO A HOT AIRMASS LATE THIS WEEK WITH H8 TEMPS REACHING THE MID 20S DEG C. ASSUMING SUFFICIENT DAYTIME SUNSHINE...THESE TEMPS WOULD CORRESPOND TO HIGHS IN THE MID AND UPPER 90S TO POSSIBLY AROUND 100F...AND HEAT INDICES APPROACHING HEAT ADVISORY CRITERIA FRI AND SAT. HOWEVER CONFIDENCE IN THIS MAGNITUDE OF HEAT OCCURRING IS LOWER THAN NORMAL AS THE REGION WILL BE LOCATED ALONG THE NRN PERIPHERY OF THE UPPER RIDGE. ANY SMALL PATTERN SHIFT WOULD PREVENT THE WARMEST AIRMASS FROM MAKING IT THIS FAR NORTH. && .AVIATION /19Z MONDAY THROUGH SATURDAY/... HAVE RETAINED CB RMKS IN ALL TAFS AS TSTMS XPCD TO FORM ALONG SFC TROF IN MOIST AND UNSTABLE AMS. SPECIFIC TIMING OF IMPACTS NOT CERTAIN...SO WILL NOT INCLUDE TEMPO GROUPS ATTM AND WAIT UNTIL TSTM INITIATION ALLOWS US TO REFINE THE FCST. VSBYS WILL BE IN VFR RANGE XCPT IN TSTMS. TSTMS WILL BE PSBL AGAIN TUE AFTN AND EVE. A CONVECTIVE COMPLEX IS EXPECTED TO MOVE THRU THE TERMINALS TUE NGT...CONTINUING CHANCES FOR SHRA/TSRA INTO THE NGT HOURS. WED ALSO WILL FEATURE UNSETTLED WX MAINLY IN THE AFTN AND EVE HRS AS A SERIES OF DISTURBANCES MOVE ACROSS THE AREA. HIPRES MAY BUILD FARTHER NORTHWARD LATE THIS WEEK...BRINGING THE BEST CHANCE FOR DRY WX ON THU. ASIDE FROM CONVECTION AND PATCHY BR DURING THE ERY MORNINGS...VFR CONDITIONS WILL PREVAIL. && .MARINE... WIND GUSTS HAVE BEGUN TO SUBSIDE AFTER WDSPRD 15-25 KT GUSTS... SPCLY SRN PORTIONS OF MD CHSPK BAY AND LWR TIDAL POTOMAC RVR. SPCL MRN WRNGS MAY BE NEEDED FOR TSTMS VCTY WATERS BOTH TDA AND TMW... BUT SMALL CRAFT ADZY CONDS NOT XPCD THRU TUE AFTN. THE PRESSURE GRADIENT WILL INCREASE ON TUE NGT AND WED AS A CONVECTIVE COMPLEX MOVES THRU THE AREA AND OFF THE COAST. DAYTIME HEATING ON WED WILL ALLOW STRONGER WIND GUSTS ALOFT TO MIX DOWN TO THE SFC...AND A SCA MAY BE NEEDED. OTHERWISE...WINDS SHOULD REMAIN BELOW SCA LEVELS THRU THE REST OF THE WEEK. SPECIAL MARINE WARNINGS MAY BE NEEDED FOR THE STRONGEST STORMS TUE EVE AND AGAIN WED AFTN/EVE. && .EQUIPMENT... TECHNICIANS THAT HAVE BEEN WORKING ON THE PIKESVILLE NWR TRANSMITTER REPORT THAT A TEMPORARY FIX HAS BEEN IMPLEMENTED TO ALLOW THE TRANSMITTER TO BEGIN BROADCASTING AGAIN. THIS FIX IS EXPECTED TO SUSTAIN THE BROADCAST UNTIL A PERMANENT REPAIR TO THE ANTENNA CAN BE UNDERTAKEN. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...NONE. MD...NONE. VA...NONE. WV...NONE. MARINE...NONE. && KRAMAR/KLEIN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 433 PM EDT MON JUL 19 2010 ANZ530>543-DCZ001-MDZ006-007-011-013-014-016>018-VAZ052>057- 201000- 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- 433 PM EDT MON JUL 19 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...TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR THE BALTIMORE AND WASHINGTON DC METROPOLITAN AREAS AND SUBURBS AND SOUTHERN MARYLAND. SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS THE OUTLOOK AREA THIS AFTERNOON AND EVENING. A FEW STORMS MAY BECOME STRONG TO SEVERE...WITH DAMAGING WIND GUSTS THE PRIMARY THREAT. SPECIAL MARINE WARNINGS ALSO MAY BE NECESSARY. A SMALL CRAFT ADVISORY IS IN EFFECT FOR PORTIONS OF THE TIDAL POTOMAC AND THE MARYLAND CHESAPEAKE BAY UNTIL 9 PM. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TUESDAY AFTERNOON AND EVENING ACROSS THE OUTLOOK AREA. SCATTERED THUNDERSTORMS ARE EXPECTED TUESDAY AND WEDNESDAY ACROSS THE OUTLOOK AREA. A FEW THUNDERSTORMS MAY BECOME STRONG TO SEVERE AND WILL BE CAPABLE OF DAMAGING WIND GUSTS. A SMALL CRAFT ADVISORY MAY BE WARRANTED ON WEDNESDAY FOR PORTIONS OF THE TIDAL POTOMAC AND MARYLAND CHESAPEAKE BAY. HEAT INDICES OF 100 TO 105 WILL BE POSSIBLE FRIDAY AND SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND AGAIN TUESDAY AFTERNOON. MDZ003>005-009-010-501-502-VAZ021-025>031-036>040-042-050-051-501- 502-WVZ050>055-501>504-201000- 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- 433 PM EDT MON JUL 19 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...TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR PORTIONS OF NORTHERN MARYLAND AND THE SUBURBS OF WASHINGTON DC AND BALTIMORE. SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING. A FEW STORMS MAY BECOME STRONG TO SEVERE...WITH DAMAGING WIND GUSTS THE PRIMARY THREAT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ON TUESDAY FOR THE OUTLOOK AREA. SCATTERED THUNDERSTORMS ARE EXPECTED TUESDAY AND WEDNESDAY. A FEW STORMS MAY BECOME STRONG TO SEVERE AND WILL BE CAPABLE OF DAMAGING WIND GUSTS. HEAT INDICES OF 100 TO 105 WILL BE POSSIBLE FRIDAY AND SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND AGAIN TUESDAY AFTERNOON.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
444 PM EDT MON JUL 19 2010
MDZ005-192115-
CARROLL MD-
444 PM EDT MON JUL 19 2010
...STRONG THUNDERSTORMS TO AFFECT CARROLL COUNTY...
AT 444 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 7 MILES
WEST OF MANCHESTER...MOVING SOUTHEAST AT 20 MPH.
HEAVY RAIN WITH THIS STORM MAY REDUCE VISIBILITIES TO BELOW ONE MILE
AND MAY CAUSE PONDING OF WATER ON ROADWAYS.
WIND GUSTS OF 40 TO 50 MPH CAN BE EXPECTED WITH THIS STORM.
&&
LAT...LON 3959 7686 3951 7697 3971 7722 3973 7719
3973 7713 3972 7680
TIME...MOT...LOC 2044Z 300DEG 18KT 3968 7700
BAJSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
502 PM EDT MON JUL 19 2010
MDZ005-006-192130-
CARROLL MD-NORTHERN BALTIMORE MD-
502 PM EDT MON JUL 19 2010
...STRONG THUNDERSTORMS TO AFFECT CARROLL AND NORTHERN BALTIMORE
COUNTIES...
AT 501 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 2 MILES WEST OF UNIONTOWN TO 3 MILES WEST OF
BENTLEY SPRINGS...MOVING SOUTHEAST AT 15 MPH.
WIND GUSTS OF 40 TO 50 MPH AND SMALL HAIL CAN BE EXPECTED WITH THESE
STORMS.
&&
LAT...LON 3964 7657 3961 7657 3957 7654 3945 7703
3963 7727 3973 7673
TIME...MOT...LOC 2101Z 297DEG 14KT 3960 7715 3967 7674
BAJSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
505 PM EDT MON JUL 19 2010
MDZ009-VAZ042-501-192130-
MONTGOMERY MD-NORTHERN FAUQUIER VA-LOUDOUN VA-
505 PM EDT MON JUL 19 2010
...STRONG THUNDERSTORMS TO AFFECT MONTGOMERY...NORTHERN FAUQUIER AND
LOUDOUN COUNTIES...
AT 505 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 4 MILES NORTHEAST OF LEESBURG TO 2 MILES
NORTHEAST OF UPPERVILLE...MOVING EAST AT 15 MPH.
WIND GUSTS OF 40 TO 50 MPH CAN BE EXPECTED WITH THIS STORM.
&&
LAT...LON 3910 7713 3903 7727 3906 7733 3896 7742
3889 7758 3894 7763 3894 7765 3889 7768
3887 7771 3902 7793 3922 7751
TIME...MOT...LOC 2105Z 292DEG 14KT 3915 7750 3901 7784
BAJSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 526 PM EDT MON JUL 19 2010 MDZ009-VAZ042-052-053-501-192200- MONTGOMERY MD-NORTHERN FAUQUIER VA-LOUDOUN VA- PRINCE WILLIAM/MANASSAS/MANASSAS PARK VA-FAIRFAX VA- 526 PM EDT MON JUL 19 2010 ...STRONG THUNDERSTORMS TO AFFECT MONTGOMERY...NORTHERN FAUQUIER... LOUDOUN...PRINCE WILLIAM/MANASSAS/MANASSAS PARK AND FAIRFAX COUNTIES... AT 526 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM MIDDLEBURG TO NORTH POTOMAC...MOVING EAST AT 25 MPH. WIND GUSTS IN EXCESS OF 50 MPH ARE EXPECTED WITH THIS STORM. WINDS THIS STRONG CAN BRING DOWN LARGE TREE BRANCHES. TAKE SHELTER UNTIL THE STORM HAS PASSED. && LAT...LON 3897 7790 3916 7721 3901 7700 3879 7761 TIME...MOT...LOC 2126Z 288DEG 23KT 3897 7768 3910 7721 BAJ
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
528 PM EDT MON JUL 19 2010
MDZ005>007-011-192200-
CARROLL MD-NORTHERN BALTIMORE MD-HARFORD MD-SOUTHERN BALTIMORE MD-
528 PM EDT MON JUL 19 2010
...STRONG THUNDERSTORMS TO AFFECT CARROLL...NORTHERN BALTIMORE...
HARFORD AND SOUTHERN BALTIMORE COUNTIES...
AT 528 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM CARDIFF TO MONKTON TO WESTMINSTER...MOVING EAST
AT 25 MPH.
WIND GUSTS OF 40 TO 50 MPH CAN BE EXPECTED WITH THIS STORM.
&&
LAT...LON 3970 7622 3965 7615 3962 7615 3956 7609
3946 7625 3939 7676 3963 7711 3966 7669
3973 7648 3973 7623
TIME...MOT...LOC 2128Z 284DEG 22KT 3971 7629 3958 7656
3956 7695
BAJSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
540 PM EDT MON JUL 19 2010
DCZ001-MDZ009-013-VAZ042-052>054-501-192230-
DISTRICT OF COLUMBIA DC-MONTGOMERY MD-PRINCE GEORGES MD-
NORTHERN FAUQUIER VA-LOUDOUN VA-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK VA-
ARLINGTON/FALLS CHURCH/ALEXANDRIA VA-FAIRFAX VA-
540 PM EDT MON JUL 19 2010
...STRONG THUNDERSTORMS TO AFFECT THE DISTRICT OF COLUMBIA...
ARLINGTON...MONTGOMERY...PRINCE GEORGES...NORTHERN FAUQUIER...
LOUDOUN...PRINCE WILLIAM/MANASSAS/MANASSAS PARK AND FAIRFAX
COUNTIES...
AT 540 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 2 MILES NORTHWEST OF POTOMAC TO 3 MILES NORTH OF
WOOLSEY...MOVING SOUTHEAST AT 20 MPH.
WIND GUSTS OF 40 TO 50 MPH CAN BE EXPECTED WITH THIS STORM.
&&
LAT...LON 3877 7703 3888 7703 3890 7706 3888 7705
3876 7706 3864 7747 3893 7782 3913 7720
3886 7673
TIME...MOT...LOC 2140Z 303DEG 19KT 3904 7721 3890 7760
BAJThe Sterling radar (KLWX), 5 km away, was scanning. The volume nearest the first event began at 21:44 UTC.
3 thunderstorm wind. Local standard time, as filed.
Trees were down along Gum Springs Road at Evergreen Mills Road.
A pine tree was uprooted just east of Thunder Road on the north side of Route 606.
A mariner estimated wind gusts around 50 knots on Pleasant Valley Road.
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, July 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: 248278, 248276, 248279.