National Weather Service Raw Text Product

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NOUS41 KLWX 142330
PNSLWX
DCZ001-MDZ003>007-009>011-013-014-016>018-501-502-VAZ025>031-
036>040-042-050>057-501>504-WVZ050>053-055-501>506-150330-
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-AUGUSTA-
ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-
ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORANGE-CULPEPER-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-
KING GEORGE-NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN HIGHLAND-
EASTERN HIGHLAND-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY-
WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-
WESTERN PENDLETON-EASTERN PENDLETON-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
730 PM EDT FRI JUN 14 2013

...PUBLIC INFORMATION STATEMENT...

...LONG TRACK TORNADO CONFIRMED THROUGH MONTGOMERY COUNTY MARYLAND...

ONE ADDITIONAL TORNADO CONFIRMED IN SAINT MARYS COUNTY MARYLAND
ONE INVESTIGATION CONTINUES IN SPOTSYLVANIA COUNTY

ONE LONG TRACK TORNADO HAS BEEN CONFIRMED THROUGH MONTGOMERY COUNTY. A SECOND 
TORNADO WAS CONFIRMED IN SAINT MARYS COUNTY AFFECTING THE COLTONS POINT
AREA. A THIRD AREA OF WIND DAMAGE IS STILL UNDER INVESTIGATION
NEAR THORNBURG VIRGINIA.

THE MONTGOMERY COUNTY TORNADO REPORT FOLLOWS. THE SAINT MARYS TORNADO 
REPORT WILL BE AVAILABLE ON MONDAY AS THE SURVEY TEAM IS STILL
WORKING ON THE DETAILS. THE THORNBURG EVENT WILL ALSO BE DETAILED
ON MONDAY.

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 IN MONTGOMERY COUNTY MARYLAND...

LOCATION...NORTH POTOMAC TO BURTONSVILLE IN MONTGOMERY COUNTY MARYLAND
DATE...JUNE 13 2013
ESTIMATED TIME...3:41 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...17.3 MILES
BEGINNING LAT/LON...39.091N / 77.269W
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 CONSISTENT DAMAGE WAS NOTED NEAR THE INTERSECTION OF TURKEY FOOT ROAD 
AND JONES LANE IN SOUTHWEST MONTGOMERY COUNTY NEAR NORTH POTOMAC
MARYLAND WHERE A FEW LARGE TREES WERE OVER THE ROAD. THE TORNADO
RACED EAST 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 17.3 MILE DAMAGE PATH LENGTH WAS COVERED 
IN 18 MINUTES AND HAD CONSISTENT SMALL BRANCH DAMAGE WITH
OCCASSIONAL 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.

&&


$$

CAS/KCS/HAS