National Weather Service United States Department of Commerce

Dangerous Heat expected through the weekend!

Heat Advisories and Excessive Heat Warnings are in effect for portions of the area. The heat index will reach well over 100 degrees, and possibly over 110 degrees in some locations, through the weekend. For more information on how to stay safe during the heat... Read More >

 

 

VERY LARGE HAIL OCCURRED FROM A SUPERCELL THUNDERSTORM IN THE LATE
AFTERNOON OF TUESDAY...JUNE 23 2015 IN CENTRAL BALTIMORE COUNTY.

AROUND 545 PM...A HAILSTONE WAS FOUND IN THE FRONT YARD OF A
RESIDENCE 2 MILES NORTH-NORTHEAST OF TIMONIUM MARYLAND THAT MEASURED
4.0 INCHES IN DIAMETER...GRAPEFRUIT SIZE. THIS IS ONLY THE 4TH CASE
OF HAIL MEASURING 4 OR MORE INCHES IN MARYLAND FROM RECORDS DATING
BACK TO 1950.

THE LARGEST HAIL ON RECORD IN MARYLAND SINCE 1950 IS 4.5 INCHES...
SOFTBALL SIZE. HAIL THIS SIZE HAS BEEN RECORDED TWICE...ONCE ON
APRIL 28 2002 IN CHARLES COUNTY ASSOCIATED WITH THE SUPERCELL THAT
PRODUCED THE LA PLATA EF4 TORNADO. THE OTHER 4.5 INCH HAILSTONE FELL
ON JUNE 18 1970 IN THE PHOENIX-JACKSONVILLE-COCKEYSVILLE AREA OF
BALTIMORE COUNTY.

THE OTHER KNOWN 4.0 INCH DIAMETER HAIL REPORT IN MARYLAND WAS ON
JULY 31 1999 IN NORTHERN BALTIMORE COUNTY NEAR HEREFORD.