NZUS51 KLWX 091612
WRKOAV
...FIVE EF-0 TORNADOES NOW CONFIRMED FROM THE JUNE 13TH SEVERE WEATHER 
OUTBREAK...
THREE ADDITIONAL CONFIRMED TORNADOES IN MARYLAND AND VIRGINIA NOW JOIN 
THE TWO PREVIOUSLY CONFIRMED TORNADOES IN MONTGOMERY COUNTY AND SAINT 
MARYS COUNTY MARYLAND FROM THE SEVERE WEATHER OUTBREAK ON JUNE 13TH 
2013. THE TORNADOES ARE LISTED IN CHRONOLOGICAL ORDER AND ALL TOUCHED 
DOWN WITHIN A PERIOD OF 65 MINUTES FROM 2:35 TO 3:40 PM. ALL TORNADOES 
WERE RATED AS EF-0.
THE NATIONAL WEATHER SERVICE IN STERLING EXPRESSES ITS APPRECIATION TO 
THOSE WHO ASSISTED IN CONDUCTING SURVEYS AND PROVIDED INFORMATION USED 
DURING THE SURVEYS...INCLUDING MEMBERS OF THE EMERGENCY MANAGEMENT... 
SKYWARN STORM SPOTTERS...AND MEMBERS OF THE PUBLIC AFFECTED BY THESE 
STORMS. 
...TORNADO CONFIRMED NEAR THORNBURG VIRGINIA...
LOCATION...NEAR THORNBURG IN SPOTSYLVANIA COUNTY VIRGINIA
DATE...JUNE 13 2013 
ESTIMATED TIME...2:35 PM TO 2:40 PM EDT 
MAXIMUM EF-SCALE RATING...EF-0 
ESTIMATED MAXIMUM WIND SPEED...80 MPH 
MAXIMUM PATH WIDTH...75 YARDS 
PATH LENGTH...2.5 MILES 
BEGINNING LAT/LON...38.096N / 77.539W 
ENDING LAT/LON...38.125N / 77.513W
* FATALITIES...0
* INJURIES...0
* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN
NWS STORM DATA.
...SUMMARY...
AFTER REVIEW OF RADAR OBSERVATIONS AND A GROUND SURVEY...THE NATIONAL 
WEATHER SERVICE HAS CONFIRMED A EF-0 TORNADO IN SOUTHEASTERN 
SPOTSYLVANIA COUNTY ON THE AFTERNOON OF THURSDAY JUNE 13 2013.
THE TORNADO TOUCHED DOWN NEAR MAYRE ROAD WEST OF JEFFERSON DAVIS 
HIGHWAY...WHERE SEVERAL TREES WERE SNAPPED AND UPROOTED. THE TORNADO 
TRAVELED TO THE NORTH-NORTHEAST ROUGHLY ALONG US HIGHWAY 1 AND 
INTERSTATE 95. AT A FARM ON HIGHWAY 1...A SHED WAS DESTROYED WITH 
TWISTED DEBRIS SCATTERED ACROSS THE PROPERTY. PORTIONS OF ROOFS WERE 
PEELED ON OTHER SHEDS. MINOR SIDING AND ROOF DAMAGE OCCURRED TO THE 
FARMHOUSE. AFTERWARDS...THE TORNADO DAMAGED TWO BILLBOARDS NEAR THE 
SOUTHBOUND LANES OF INTERSTATE 95...AND CARRIED A PLACARD FROM ONE 
OF THE BILLBOARDS ACROSS THE HIGHWAY. JUST TO EAST OF INTERSTATE 
95...THE TORNADO OVERTURNED TWO RECREATIONAL VEHICLES AT A DEALERSHIP 
AND PULLED A GARAGE DOOR OFF ITS HINGES. THE TWO RECREATIONAL VEHICLES 
WEIGHED AN ESTIMATED 8000 POUNDS EACH.
BASED ON THE DAMAGE, THIS TORNADO IS RATED EF-0, WITH ESTIMATED WIND 
SPEEDS OF 70 TO 80 MPH. THE PATH LENGTH WAS 2.3 MILES...WITH AN 
ESTIMATED WIDTH OF 75 YARDS.  TIME ON THE GROUND WAS APPROXIMATELY FIVE 
MINUTES.  THE START TIME WAS 2:35 PM.
&&
...TORNADO CONFIRMED IN RURAL KING GEORGE COUNTY VIRGINIA...
LOCATION...SOUTHEASTERN KING GEORGE COUNTY VIRGINIA
DATE...JUNE 13 2013
ESTIMATED TIME...2:57 PM TO 3:06 PM EDT
MAXIMUM EF-SCALE RATING...EF-0 
ESTIMATED MAXIMUM WIND SPEED...70 MPH 
MAXIMUM PATH WIDTH...50 YARDS 
PATH LENGTH...7.1 MILES 
BEGINNING LAT/LON...38.180N / 77.180W 
ENDING LAT/LON...38.189N / 77.049W
* FATALITIES...0
* INJURIES...0
* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN
NWS STORM DATA.
...SUMMARY...
AFTER REVIEW OF RADAR OBSERVATIONS AND A GROUND SURVEY...THE NATIONAL 
WEATHER SERVICE HAS CONFIRMED A EF-0 TORNADO TOUCHED DOWN IN 
SOUTHEASTERN KING GEORGE COUNTY ON THE AFTERNOON OF THURSDAY JUNE 13 
2013. 
THE TORNADO TOUCHED DOWN IN PORT CONWAY...WHERE TREE DAMAGE OCCURRED 
JUST EAST OF US HIGHWAY 301. THE TORNADO THEN TRAVELED EAST-NORTHEAST 
ACROSS SOUTHEASTERN KING GEORGE COUNTY...CAUSING INTERMITTENT TREE 
DAMAGE. THE MOST SIGNIFICANT DAMAGE OCCURRED NORTHEAST OF ROLLINS FORK 
NEAR THE WESTMORELAND COUNTY BORDER...WHERE THREE 20-30 INCH DIAMETER 
POPLAR TREES WERE BLOWN OVER AND NUMEROUS SMALL TREES WERE TOPPED.
BASED ON THE TREE DAMAGE, THIS TORNADO IS RATED EF-0, WITH ESTIMATED 
WIND SPEEDS OF 65 TO 70 MPH. THE 7.1 MILE DAMAGE PATH LENGTH WAS 
DISCONTINUOUS, WITH AN ESTIMATED WIDTH OF 50 YARDS.  TIME ON THE GROUND 
WAS APPROXIMATELY NINE MINUTES. THE START TIME WAS 2:57 PM.
&&
...TORNADO CONFIRMED IN CALIFORNIA MARYLAND...
LOCATION...OAKLEY TO CALIFORNIA IN ST MARYS COUNTY MARYLAND 
DATE...JUNE 13 2013 
ESTIMATED TIME... 3:24 PM TO 3:42 PM EDT 
MAXIMUM EF-SCALE RATING...EF-0 
MAXIMUM WIND SPEED...75 MPH 
MAXIMUM PATH WIDTH...200 YARDS
LENGTH...13.8 MILES
BEGINNING LAT/LON...38.278N / 76.740W 
ENDING LAT/LON...38.309N / 76.488W
* FATALITIES...0
* INJURIES...0
* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO CHANGE 
PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN NWS STORM DATA.
...SUMMARY...
A GROUND SURVEY CONDUCTED BY THE NATIONAL WEATHER SERVICE...TOGETHER 
WITH RADAR DATA FROM THE WSR-88D IN STERLING VA AND ANDREWS AFB 
TERMINAL DOPPLER WEATHER RADAR DETERMINED THERE WAS A EF-0 TORNADO 
THAT TRAVERSED NEARLY THE ENTIRE WIDTH OF SAINT MARYS COUNTY
MARYLAND. DAMAGE WAS INTERMITTENT ALONG THE PATH AND WAS CONFINED
TO TREE DAMAGE AND DAMAGE RESULTING FROM DOWNED TREES. NUMEROUS
LARGE TREES WERE UPROOTED AND SOME TREES WERE TOPPED. MANY WERE
NOTED IN THE VICINITY OF OAKLEY ROAD AND HODGES ROAD...BETWEEN OLD
ROLLING ROAD AND JOAN DRIVE AND BETWEEN SHADY MILE DRIVE AND TOWN
CREEK ROAD.
THUNDERSTORM WIND DAMAGE ALSO OCCURRED ACROSS COLTONS POINT BETWEEN 
SERENITY LANE AND POINT BREEZE ROAD.  MANY LARGE TREES WERE UPROOTED 
IN THIS AREA.
&&
...TORNADO CONFIRMED IN MONTGOMERY COUNTY MARYLAND...
LOCATION...NORTH POTOMAC TO BURTONSVILLE IN MONTGOMERY COUNTY MARYLAND
DATE...JUNE 13 2013
ESTIMATED TIME...3:38 PM EDT TO 3:59 PM EDT
MAXIMUM EF-SCALE RATING...EF-0
ESTIMATED MAXIMUM WIND SPEED...75 MPH
MAXIMUM PATH WIDTH...150 YARDS
PATH LENGTH...21.0 MILES
BEGINNING LAT/LON...39.080N / 77.320W
ENDING LAT/LON...39.108N / 76.947W
* FATALITIES...0
* INJURIES...0
* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN
NWS STORM DATA.
...SUMMARY...
EYEWITNESS ACCOUNTS...RADAR IMAGERY...AND A GROUND SURVEY CONCLUDED
A LONG TRACK EF-0 TORNADO OCCURRED IN MONTGOMERY COUNTY MARYLAND
ON THE AFTERNOON OF JUNE 13TH 2013. PEAK WINDS WERE ESTIMATED AT
75 MPH. DAMAGE WAS ALMOST ENTIRELY FROM DOWNED TREES. IN THAT
REGARD NUMEROUS HOMES AND A FEW PARKED VEHICLES WERE DAMAGED BY
TREES FALLING ONTO THEM. NO INJURIES HAVE BEEN REPORTED.
FIRST DAMAGE WAS NOTED NEAR THE BRETTON WOODS GOLF COURSE ALONG 
RIVER ROAD. DAMAGE CONTINUED ALONG BONNIE DALE DRIVE AND GLENHURST 
COURT AND ROAD WHERE SEVERAL TREES WERE DOWNED IN THE COMMUNITY. 
ALSO...NEAR THE INTERSECTION OF TURKEY FOOT ROAD AND JONES LANE IN 
SOUTHWEST MONTGOMERY COUNTY NEAR NORTH POTOMAC MARYLAND A FEW LARGE 
TREES WERE OVER THE ROAD. THE TORNADO RACED EAST AT NEARLY 60 MPH TO 
THE NORTHERN SECTION OF ROCKVILLE MARYLAND. AT LEAST 14 HOMES WERE 
SIGNIFICANTLY DAMAGED BY UPROOTED TREES. AS IT CONTINUED EAST TO THE 
NORBECK AND ASPEN HILL AREA 30 TREES WERE UPROOTED IN THE MANOR 
COUNTRY CLUB GOLF COURSE AS WELL AS NUMEROUS HOMES DAMAGED IN THE 
SURROUNDING COMMUNITIES FROM TREE DAMAGE. TREE DAMAGE WAS NOTED 
ALONG THE INTERCOUNTY CONNECTOR ROUTE 200 AT THE LAYHILL ROAD EXIT. 
FINALLY A FEW TREES WERE DOWNED IN SPENCERVILLE AND BURTONSVILLE.
BASED ON THE DAMAGE, THIS TORNADO IS RATED EF-0, WITH ESTIMATED
WIND SPEEDS OF 75 MPH.  THE 18.0 MILE DAMAGE PATH LENGTH WAS COVERED 
IN 18 MINUTES AND HAD CONSISTENT SMALL BRANCH DAMAGE WITH
OCCASIONAL AREAS WITH SIGNIFICANT TREE DAMAGE.
ADDITIONALLY THERE WAS A PARALLEL 7 MILES PATH OF DAMAGE THROUGH SOUTH 
ROCKVILLE AND GLENMONT MARYLAND WITH SIMILAR TREE DAMAGE. THIS AREA WAS 
FOUND TO BE STRAIGHT LINE WINDS FROM THE OUTFLOW JUST SOUTH OF THE 
TORNADO FROM THE PARENT SUPERCELL STORM.
THE NATIONAL WEATHER SERVICE WOULD LIKE TO EXTEND ITS THANKS TO 
MONTGOMERY COUNTY FIRE WHO CONFIRMED THE TORNADO ON THE GROUND DURING 
THE STORM AND MONTGOMERY COUNTY EMERGENCY MANAGEMENT WHO PROVIDED 
INVALUABLE ASSISTANCE DURING THE GROUND SURVEY.
&&
...TORNADO CONFIRMED IN BROOMES ISLAND MARYLAND...
LOCATION...BROOMES ISLAND IN CALVERT COUNTY MARYLAND
DATE...JUNE 13 2013
ESTIMATED TIME...3:42 PM TO 3:45 PM EDT
MAXIMUM EF-SCALE RATING...EF-0
ESTIMATED MAXIMUM WIND SPEED...70 MPH 
MAXIMUM PATH WIDTH...75 YARDS 
PATH LENGTH...1.8 MILES 
BEGINNING LAT/LON...38.4097N / 76.5411W 
ENDING LAT/LON...38.422N / 76.513W
* FATALITIES...0
* INJURIES...0
* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN
NWS STORM DATA.
...SUMMARY...
AFTER A REVIEW OF RADAR OBSERVATIONS AND A GROUND SURVEY...THE NATIONAL 
WEATHER SERVICE HAS CONFIRMED A EF-0 TORNADO TOUCHED DOWN IN THE AREA 
OF BROOMES ISLAND ON THE AFTERNOON OF THURSDAY JUNE 13 2013.  
PEAK WINDS ARE ESTIMATED TO HAVE BEEN 70 MPH AND THE TORNADO WAS ON THE 
GROUND FOR THREE MINUTES. THE TORNADO UPROOTED TWO OAK TREES THAT WERE 
ONE TO TWO FEET IN DIAMETER AND SNAPPED SEVERAL OTHERS AT THEIR BASES. 
IT BLEW THE ROOF OFF OF A FARM OUTBUILDING AND CAUSED ADDITIONAL DAMAGE 
TO THE WOODEN PLANKS.  SEVERAL PINE TREES HAD THEIR LIMBS RIPPED 
OFF. FOUR TO SIX INCH DIAMETER TREE LIMBS WERE BLOWN ONTO PORTIONS 
OF CAGE FARM ROAD.  GRASSY FIELDS SURROUNDING THE AREA INDICATE THE 
TORNADO MAY HAVE LIFTED AND DESCENDED ALONG ITS PATH.  
&&
FOR REFERENCE...THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES INTO 
THE FOLLOWING CATEGORIES:
EF0...WIND SPEEDS 65 TO 85 MPH.
EF1...WIND SPEEDS 86 TO 110 MPH.
EF2...WIND SPEEDS 111 TO 135 MPH.
EF3...WIND SPEEDS 136 TO 165 MPH.
EF4...WIND SPEEDS 166 TO 200 MPH.
EF5...WIND SPEEDS GREATER THAN 200 MPH.
$$
NWS STERLING