Tornadoes and Hail in Maryland, June 4, 2008

Name: Tornadoes and Hail in Maryland, June 4, 2008
Start: 2008-06-04T13:44
End: 2008-06-04T23:45
Location: Maryland

June 4, 2008 · NWS LWX · 76 events in 12 counties and zones

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $2.1 million
Crop damage: None recorded
Events: 76

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.

What happened

The episode as NWS LWX wrote it up.

A stalled front resided across the Mid Atlantic during the afternoon and evening of June 4th, allowing moisture and instability to pool along the boundary. This combined with several strong upper level disturbances resulted in numerous thunderstorms during the afternoon and evening. Many of these thunderstorms became severe. While penny sized was reported in spots, damaging winds from the thunderstorms was widespread. An EF-0 tornado was also confirmed in the community of Chesapeake Beach in Calvert County.

What forecasters said that day

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, 12:10 PM EST, 1 hour 34 minutes earlier.

Area forecast discussion, Jun 4, 12:10 PM EST, 1 hour 34 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
110 PM EDT WED JUN 4 2008

.SYNOPSIS...
A FRONT WILL STALL OVER THE MID ATLANTIC THROUGH LATE TOMORROW.
THE COMBINATION OF THE STALLED FRONT AND SEVERAL UPPER LEVEL
DISTURBANCES WILL BRING PERIODIC SHOWERS AND THUNDERSTORMS THROUGH
THURSDAY. HIGH PRESSURE WILL RETURN FOR THE WEEKEND...WITH WARMER
THAN NORMAL TEMPERATURES EXPECTED.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
...MODERATE RISK FOR SEVERE THUNDERSTORMS THIS AFTERNOON AND
EARLY EVENING...

TORNADO WATCH NUMBER 447 HAS BEEN ISSUED FOR THE FORECAST AREA
UNTIL 8 PM. REST OF THINKING BELOW REMAINS THE SAME.

WATER VAPOR LOOP SHOWS AN MCV IN THE OHIO VALLEY WITHIN WESTERLIES
ALOFT. ACARS 400-250MB WIND OBSERVATIONS REVEAL A 50-125KT JET FROM
THE FOUR CORNERS REGION ACROSS THE GREAT LAKES AND LOWER NEW
ENGLAND. A 125-175KT JET WAS ENTERING THE BACKSIDE OF THE CALIFORNIA
TROUGH. 11Z SURFACE MESOANALYSIS PLACED AN OUTFLOW BOUNDARY FROM
NEAR CULPEPER SOUTHEAST THROUGH THE RICHMOND AREA. A TROUGH WAS
LOCATED IN THE LEE OF THE APPALACHIANS...WHILE THE BAROCLINIC ZONE
WAS LOCATED FROM THE EASTERN GREAT LAKES SOUTHEAST INTO CENTRAL NEW
JERSEY.

THE REGION WAS UPGRADED TO A MODERATE RISK IN COLLABORATION WITH
SPC EARLIER THIS MORNING. WEAKER SHOWER ACTIVITY HAS WANED AND
SKIES ARE CLEARING ACROSS THE SOUTHERN FORECAST AREA. AS OF 14Z
ELEVATED CONVECTION ACROSS WESTERN MARYLAND WAS BECOMING MORE
ROOTED IN THE BOUNDARY LAYER IN ADVANCE OF THE MCV APPROACHING
FROM THE OHIO VALLEY. THIS SHOULD ALL COME TOGETHER TO PROVIDE A
WIDESPREAD CONVECTIVE THREAT THIS AFTERNOON AND EARLY EVENING.
WITH THE MCV SERVING AS A TRIGGER AND BUILDING INSTABILITY...STORM
COVERAGE SHOULD BE WIDESPREAD. DEEP LAYER SHEAR WITHIN WESTERLIES
ALOFT APPEARS TO BE ENOUGH FOR STORM ORGANIZATION. VEERING SEEN IN
THE LOWER LEVELS WITH 750M LCLS MAY ALLOW FOR ISOLATED
TORNADOES...HOWEVER DAMAGING WINDS AND LARGE HAIL WILL BE THE
PRIMARY THREATS.

WE PLAN TO RELEASE AN 18Z BALLOON TO MONITOR ATMOSPHERIC
CONDITIONS...DATA SHOULD BE AVAILABLE AROUND 19Z.

DECIDED TO LOWER THE FLASH FLOOD WATCH. CURRENTLY HAVE VERY LOW
STORM COVERAGE...AND NO REPORTED ISSUES. DO ANTICIPATE HEAVIER
ORGANIZED CONVECTION THIS AFTERNOON...BUT THIS SHOULD PRESENT A
MORE TYPICAL LOCALIZED FLASH FLOOD RISK.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM THURSDAY/...
CONVECTION SHOULD TAPER OFF WITH THE PASSAGE OF THE MCV THIS
EVENING. INSTABILITY RE-BUILDS QUICKLY TOMORROW AS RIDGING OCCURS
ALOFT. ANTICIPATE SCATTERED SHOWER AND THUNDERSTORM ACTIVITY AS A
RESULT...ON THE EDGE OF NORTHWESTERLY FLOW ALOFT SOME OF THIS
ACTIVITY MAY BE STRONG DURING THE AFTERNOON.

&&

.LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/...
THE FIRST FEEL OF SUMMER IS STILL EXPECTED LATE THIS WEEK INTO THE
WEEKEND. HOWEVER...RIDGE ACROSS THE FORECAST AREA AT THE SURFACE AND
ALOFT WILL ALLOW FOR LIGHT WINDS. CANNOT RULE OUT SLIGHT CHANCES OF
SHOWERS AND THUNDERSTORMS EACH DAY THROUGH THE EXTENDED. THIS SHOULD
BE DIURNALLY DRIVEN...SO WILL CARRY DRY FORECASTS FOR THE OVERNIGHT
PERIODS. HIGHER CONFIDENCE FOR STORMS WILL BE WEST OF THE BLUE
RIDGE. NOT MUCH OF A CHANGE FROM THE PREVIOUS FORECAST.

&&

.AVIATION /17Z WEDNESDAY THROUGH SUNDAY/...
WIDESPREAD CONVECTION ANTICIPATED DURING THE EARLY PORTION OF THE
EVENING PUSH. IN ADDITION TO TURBULENCE AND LIGHTNING
THREAT...SOME STORMS MAY CONTAIN DAMAGING WINDS AND LARGE HAIL.
UPDATED TAFS OUT SHORTLY.

&&

.MARINE...
WIDESPREAD CONVECTION ANTICIPATED DURING THE LATE AFTERNOON. IN ADDITION
TO LIGHTNING THREAT...SOME STORMS MAY CONTAIN DAMAGING
WINDS...LARGE HAIL AND WATERSPOUTS. SPECIAL MARINE WARNINGS ARE
ANTICIPATED THIS AFTERNOON AND EVENING.

SMALL CRAFT ADVISORY REMAINS IN EFFECT THROUGH LATE THIS
AFTERNOON.

HIGH PRESSURE BUILDS FOR THE END OF THE WEEK.

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...NONE.
MD...NONE.
VA...NONE.
WV...NONE.
MARINE...SMALL CRAFT ADVISORY UNTIL 10 PM EDT THIS EVENING FOR
     ANZ530>537.

&&

SYNOPSIS...SAR
NEAR TERM...ROGOWSKI
SHORT TERM...ROGOWSKI
LONG TERM...SAR
AVIATION...ROGOWSKI
MARINE...ROGOWSKI

Hazardous weather outlook, Jun 4, 12:04 PM EST, 1 hour 40 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
104 PM EDT WED JUN 4 2008

ANZ530>537-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-
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-
104 PM EDT WED JUN 4 2008

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

A TORNADO WATCH HAS BEEN POSTED THROUGH 8 PM FOR THE OUTLOOK AREA. A
SEVERE WEATHER EPISODE IS EXPECTED DURING THE MID AFTERNOON
THROUGH THE EARLY EVENING. LOCALLY DAMAGING WINDS AND LARGE HAIL
WILL BE THE PRIMARY POTENTIAL HAZARDS...ALONG WITH HEAVY
RAINFALL...CONTINUOUS CLOUD TO GROUND LIGHTNING...AND PERHAPS AN
ISOLATED TORNADO.

A SMALL CRAFT ADVISORY REMAINS IN EFFECT ACROSS THE MARYLAND
PORTION OF THE CHESAPEAKE BAY AND TIDAL POTOMAC RIVER.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE SMALL CRAFT ADVISORY CONTINUES THROUGH WEDNESDAY AFTERNOON
FOR THE ENTIRE MARYLAND PORTION OF THE CHESAPEAKE BAY AND TIDAL
POTOMAC RIVER.

TEMPERATURES THIS WEEKEND WILL RISE WELL ABOVE NORMAL...WITH HIGHS
IN THE 90S. THE HEAT AND HUMIDITY WILL CONTINUE THROUGH THE WEEKEND.
TAKE PRECAUTIONS TO AVOID HEAT RELATED INJURIES.

.SPOTTER INFORMATION STATEMENT...

SKYWARN HAS BEEN ACTIVATED.

MDZ003>005-009-010-501-502-VAZ021-025>031-036>042-050-051-
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-FAUQUIER-LOUDOUN-
ORANGE-CULPEPER-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-
HARDY-WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-
104 PM EDT WED JUN 4 2008

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

A TORNADO WATCH HAS BEEN POSTED THROUGH 8 PM FOR THE OUTLOOK AREA. A
SEVERE WEATHER EPISODE IS EXPECTED DURING THE AFTERNOON. LOCALLY
DAMAGING WINDS AND LARGE HAIL WILL BE THE PRIMARY POTENTIAL
HAZARDS...ALONG WITH HEAVY RAINFALL...CONTINUOUS CLOUD TO GROUND
LIGHTNING...AND PERHAPS AN ISOLATED TORNADO.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

TEMPERATURES THIS WEEKEND WILL RISE WELL ABOVE NORMAL...WITH HIGHS
IN THE 90S. THE HEAT AND HUMIDITY WILL CONTINUE THROUGH THE WEEKEND.
TAKE PRECAUTIONS TO AVOID HEAT RELATED INJURIES.

.SPOTTER INFORMATION STATEMENT...

SKYWARN HAS BEEN ACTIVATED.

ROGOWSKI

In the hours before

Local storm report, Jun 4, 12:49 PM EST, 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
149 PM EDT WED JUN 04 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0120 PM     TSTM WND DMG     SENECA ROCKS            38.83N 79.38W
06/04/2008                   PENDLETON          WV   COUNTY OFFICIAL

            TREES DOWN

&&

HITCHENS

Local storm report, Jun 4, 1:01 PM EST, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
201 PM EDT WED JUN 04 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0135 PM     TSTM WND DMG     ROMNEY                  39.35N 78.76W
06/04/2008                   HAMPSHIRE          WV   COUNTY OFFICIAL

            TREES DOWN ON HOUSES AND GARAGES AROUND ROMNEY.

&&

HITCHENS

Local storm report, Jun 4, 1:13 PM EST, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
213 PM EDT WED JUN 04 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0205 PM     TSTM WND DMG     8 W CAPON BRIDGE        39.30N 78.59W
06/04/2008                   HAMPSHIRE          WV   TRAINED SPOTTER

            TREES DOWN

&&

HITCHENS

Local storm report, Jun 4, 1:15 PM EST, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
215 PM EDT WED JUN 04 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0212 PM     TSTM WND DMG     GORE                    39.26N 78.33W
06/04/2008                   FREDERICK          VA   TRAINED SPOTTER

            NUMEROUS TREES DOWN

&&

HITCHENS

Local storm report, Jun 4, 1:34 PM EST, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
234 PM EDT WED JUN 04 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0215 PM     TSTM WND DMG     FRONT ROYAL             38.92N 78.18W
06/04/2008                   WARREN             VA   TRAINED SPOTTER

            4 TO 6 INCH DIAMETER TREES SNAPPED OFF

&&

HITCHENS

Local storm report, Jun 4, 1:44 PM EST, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
244 PM EDT WED JUN 04 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0243 PM     TSTM WND DMG     DELAPLANE               38.92N 77.92W
06/04/2008                   FAUQUIER           VA   EMERGENCY MNGR

            ROOF OFF HOUSE. POWER LINES DOWN. POSSIBLE FUNNEL CLOUD.

&&

WOODCOCK

The radar

The Sterling radar (KLWX), 57 km away, was scanning. The volume nearest the first event began at 18:42 UTC.

Open the radar archive at this moment

Event by event

66 thunderstorm wind, 5 lightning, 3 hail, 2 tornado. Local standard time, as filed.

Thunderstorm Wind, Washington

When: June 4, 1:44 PM EST to 2:00 PM EST
Where: Washington County, Sharpsburg to Boonsboro
Measured: 87 kt (100 mph) estimated gust
Property damage: $500,000
Reported by: NWS Storm Survey
Coordinates: 39.450, -77.750

An NWS storm survey team examined wind damage to structures and trees in an area from Sharpsburg to Keedysville to Boonsboro. A few outbuildings were destroyed and extensive tree damage was observed. Some homes sustained wind damage to their roof structures and one garage was damaged. Some of the damage to a barn, and one area of wind damage to trees between Sharpsburg and Keedysville, were severe. Many hardwood and softwood trees were snapped off at the trunks. Extensive damage was reported in Washington Monument State Park in Boonsboro, forcing the park to close for 2 weeks. All of the damage was aligned along the direction of the wind gusts and the damage was determined to be caused by straight line winds. Wind gusts to 100 mph are estimated based on the damage.

Thunderstorm Wind, Frederick

When: June 4, 1:45 PM EST
Where: Frederick County, Knoxville
Measured: 50 kt (58 mph) estimated gust
Property damage: $10,000
Reported by: Trained Spotter
Coordinates: 39.330, -77.670

A trained spotter reported trees and power lines down in Knoxville.

Thunderstorm Wind, Washington

When: June 4, 1:47 PM EST
Where: Washington County, 1.07 mi NW of Weverton
Measured: 50 kt (58 mph) estimated gust
Property damage: $50,000
Reported by: Newspaper
Coordinates: 39.340, -77.696

A local newspaper reported numerous trees down in the Weverton area on Wolf Hill. One barn roof was destroyed while other barns were lifted off their foundations.

Thunderstorm Wind, Frederick

When: June 4, 1:51 PM EST
Where: Frederick County, Brunswick
Measured: 50 kt (58 mph) estimated gust
Property damage: $25,000
Reported by: Newspaper
Coordinates: 39.320, -77.630

A local newspaper reported that a barn under construction was destroyed.

Thunderstorm Wind, Washington

When: June 4, 1:51 PM EST
Where: Washington County, Rohrersville
Measured: 50 kt (58 mph) estimated gust
Property damage: $50,000
Reported by: Newspaper
Coordinates: 39.430, -77.670

A local newspaper reported numerous trees and power lines down in Rohrersville. Several trees fell on homes.

Thunderstorm Wind, Frederick

When: June 4, 1:56 PM EST
Where: Frederick County, 0.77 mi NW of Middletown
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Public
Coordinates: 39.458, -77.560

Downed trees and power lines were reported in Middletown.

Thunderstorm Wind, Frederick

When: June 4, 2:00 PM EST
Where: Frederick County, 1.32 mi SSW of Buckeystown
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Newspaper
Coordinates: 39.313, -77.442

A local newspaper reported that a tree fell on a car traveling along Route 85 near Adamstown.

Thunderstorm Wind, Frederick

When: June 4, 2:00 PM EST
Where: Frederick County, 0.98 mi WNW of Petersville to 0.24 mi WNW of Petersville
Measured: 50 kt (58 mph) estimated gust
Property damage: $50,000
Reported by: Newspaper
Coordinates: 39.355, -77.637

A local newspaper reported several roofs blown off barns on Brentland Road.

Thunderstorm Wind, Montgomery

When: June 4, 2:00 PM EST
Where: Montgomery County, 3.56 mi WSW of Poolesville
Measured: 50 kt (58 mph) estimated gust
Property damage: $4,000
Reported by: Trained Spotter
Coordinates: 39.136, -77.484

A trained spotter reported trees down on Elmer School Road.

Thunderstorm Wind, Montgomery

When: June 4, 2:00 PM EST
Where: Montgomery County, 0.59 mi SE of Poolesville to 0.76 mi N of Dickerson
Measured: 50 kt (58 mph) estimated gust
Property damage: $15,000
Reported by: Newspaper
Coordinates: 39.145, -77.411

A local newspaper reported Routes 85, 28 and 109 between Poolesville and Frederick closed due to downed trees and power lines.

Thunderstorm Wind, Frederick

When: June 4, 2:05 PM EST
Where: Frederick County, 0.69 mi N of Frederick
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Newspaper
Coordinates: 39.430, -77.420

A local newspaper reported that a tree fell through the window of a car.

Thunderstorm Wind, Montgomery

When: June 4, 2:05 PM EST to 2:10 PM EST
Where: Montgomery County, 1.75 mi SW of Potomac
Measured: 50 kt (58 mph) estimated gust
Property damage: $100,000
Reported by: Newspaper
Coordinates: 39.000, -77.240

A local newspaper reported between 400 and 500 trees down in the C&O Canal National Historical Park.

Thunderstorm Wind, Montgomery

When: June 4, 2:10 PM EST
Where: Montgomery County, 0.54 mi E of Cabin John
Measured: 50 kt (58 mph) estimated gust
Property damage: $7,000
Reported by: Newspaper
Coordinates: 38.970, -77.160

A local newspaper reported trees and pines down in Cabin John.

Thunderstorm Wind, Montgomery

When: June 4, 2:10 PM EST
Where: Montgomery County, 0.69 mi S of Darnestown
Measured: 50 kt (58 mph) estimated gust
Property damage: $4,000
Reported by: Newspaper
Coordinates: 39.090, -77.300

A local newspaper reported reported trees down in Darnestown.

Thunderstorm Wind, Montgomery

When: June 4, 2:10 PM EST
Where: Montgomery County, 0.87 mi NE of Quince Orchard
Measured: 50 kt (58 mph) estimated gust
Property damage: $4,000
Reported by: Trained Spotter
Coordinates: 39.130, -77.240

A trained spotter reported trees down in Quince Orchard.

Thunderstorm Wind, Montgomery

When: June 4, 2:10 PM EST
Where: Montgomery County, 0.56 mi WNW of Carderock Spgs
Measured: 50 kt (58 mph) estimated gust
Property damage: $10,000
Reported by: Newspaper
Coordinates: 39.004, -77.179

A local newspaper reported downed trees and power lines in Potomac.

Thunderstorm Wind, Montgomery

When: June 4, 2:10 PM EST
Where: Montgomery County, 1.21 mi NW of Carderock to 1.16 mi NW of Carderock
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Trained Spotter
Coordinates: 38.993, -77.215

A trained spotter reported large trees downed on River Falls Drive in Potomac.

Thunderstorm Wind, Frederick

When: June 4, 2:11 PM EST
Where: Frederick County, 0.69 mi N of Frederick
Measured: 56 kt (64 mph) measured gust
Reported by: Mesonet
Coordinates: 39.430, -77.420

An automated observation at Crestwood Middle School in Frederick measured a wind gust of 65 MPH.

Thunderstorm Wind, Frederick

When: June 4, 2:11 PM EST
Where: Frederick County, 0.87 mi SE of Middletown
Measured: 56 kt (64 mph) measured gust
Reported by: Mesonet
Coordinates: 39.440, -77.540

An automated observation at Middletown Primary School measured a wind gust of 64 MPH.

Thunderstorm Wind, Montgomery

When: June 4, 2:15 PM EST
Where: Montgomery County, 0.87 mi NW of Colesville
Measured: 50 kt (58 mph) estimated gust
Property damage: $4,000
Reported by: Trained Spotter
Coordinates: 39.090, -77.010

A trained spotter reported trees down in Colesville.

Thunderstorm Wind, Prince George'S

When: June 4, 2:15 PM EST
Where: Prince George'S County, 0.69 mi N of Surrats Gardens
Measured: 56 kt (64 mph) estimated gust
Property damage: $10,000
Reported by: Fire Department/Rescue
Coordinates: 38.760, -76.900

Prince Georges County Fire and Rescue Department reported trees and power lines down in the Clinton area.

Thunderstorm Wind, Montgomery

When: June 4, 2:19 PM EST
Where: Montgomery County, 1.61 mi E of Georgetown Jct
Measured: 50 kt (58 mph) estimated gust
Property damage: $1,000
Reported by: Newspaper
Coordinates: 39.003, -77.020

A local newspaper reported a tree down on Dale Drive in Silver Spring.

Lightning, Charles

When: June 4, 2:20 PM EST
Where: Charles County, Mattawoman
Property damage: $5,000
Reported by: Newspaper
Coordinates: 38.650, -76.880

A local newspaper reported that a lightning strike started an attic fire in a home in the White Oak subdivision in Waldorf.

Thunderstorm Wind, Montgomery

When: June 4, 2:20 PM EST
Where: Montgomery County, 0.33 mi WNW of Rockville
Measured: 50 kt (58 mph) estimated gust
Property damage: $50,000
Reported by: Emergency Manager
Coordinates: 39.081, -77.156

Montgomery County Emergency Management received 30 separate reports of trees on homes in the Rockville area.

Lightning, Montgomery

When: June 4, 2:20 PM EST
Where: Montgomery County, 0.73 mi NE of Woodhaven
Property damage: $10,000
Reported by: Newspaper
Coordinates: 39.006, -77.119

A local newspaper reported that a house on Conway Road was struck by lightning, sparking a fire that caused significant damages.

Tornado, Montgomery

When: June 4, 2:20 PM EST to 2:24 PM EST
Where: Montgomery County, 0.26 mi ENE of White Oak to 0.58 mi ENE of White Oak
Rating: EF0
Path length: 0.32 mi
Path width: 50 yd
Property damage: $2,000
Reported by: NWS Employee
Coordinates: 39.032, -76.996

An NWS employee reported a tornado near McCeney Drive that resulted in downed trees.

Thunderstorm Wind, Prince George'S

When: June 4, 2:22 PM EST to 2:32 PM EST
Where: Prince George'S County, (Adw)andrews Afb Cam
Measured: 57 kt (66 mph) measured gust
Reported by: ASOS
Coordinates: 38.800, -76.880

The automated observation at Andrews Air Force Base measured a wind gust of 66 MPH.

Thunderstorm Wind, Charles

When: June 4, 2:24 PM EST
Where: Charles County, 0.88 mi NE of St Charles
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Newspaper
Coordinates: 38.610, -76.910

A local newspaper reported a downed transformer line behind Dr. Samuel A. Mudd Elementary School.

Thunderstorm Wind, Charles

When: June 4, 2:24 PM EST
Where: Charles County, 1.53 mi NW of St Charles
Measured: 50 kt (58 mph) estimated gust
Property damage: $3,000
Reported by: Newspaper
Coordinates: 38.613, -76.943

A local newspaper reported a chimney knocked off a home on Marlin Court near Waldorf.

Thunderstorm Wind, Charles

When: June 4, 2:24 PM EST
Where: Charles County, 0.22 mi SW of Berry
Measured: 50 kt (58 mph) estimated gust
Property damage: $20,000
Reported by: Newspaper
Coordinates: 38.648, -76.953

A local newspaper reported a several buildings downed on Berry Road near Waldorf.

Thunderstorm Wind, Montgomery

When: June 4, 2:24 PM EST
Where: Montgomery County, 0.09 mi E of Layhill
Measured: 50 kt (58 mph) estimated gust
Property damage: $15,000
Reported by: Public
Coordinates: 39.080, -77.048

Several trees were damaged on Deckman Lane and Deckman Court. One tree fell into a house.

Thunderstorm Wind, Montgomery

When: June 4, 2:24 PM EST
Where: Montgomery County, 1.28 mi ENE of Ednor to 1.07 mi NNW of Spencerville
Measured: 50 kt (58 mph) estimated gust
Property damage: $10,000
Reported by: Public
Coordinates: 39.138, -76.978

Dozens of downed trees were reported along Gamewell Road.

Thunderstorm Wind, Prince George'S

When: June 4, 2:24 PM EST
Where: Prince George'S County, 0.54 mi W of Huntsville
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Fire Department/Rescue
Coordinates: 38.920, -76.910

Prince Georges County Fire and Rescue Department reported trees down in Cheverly.

Thunderstorm Wind, Prince George'S

When: June 4, 2:24 PM EST
Where: Prince George'S County, 0.54 mi W of Greenbelt
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Trained Spotter
Coordinates: 39.000, -76.890

A trained spotter reported trees down in Greenbelt.

Lightning, Montgomery

When: June 4, 2:25 PM EST
Where: Montgomery County, 0.23 mi E of Hollywood Park
Property damage: $3,000
Reported by: Newspaper
Coordinates: 39.070, -76.996

A local newspaper reported that a house on Cannon Road was struck by lightning, sparking a fire.

Thunderstorm Wind, Charles

When: June 4, 2:28 PM EST
Where: Charles County, 0.54 mi E of La Plata
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Newspaper
Coordinates: 38.530, -76.970

A local newspaper reported downed trees in La Plata.

Thunderstorm Wind, Prince George'S

When: June 4, 2:28 PM EST
Where: Prince George'S County, 1.28 mi WSW of Mitchellville
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Unknown
Coordinates: 38.910, -76.770

The Six Flags Safety Manager reported trees down at Six Flags Amusement Park.

Hail, Prince George'S

When: June 4, 2:28 PM EST
Where: Prince George'S County, 0.64 mi ESE of Lanham
Measured: 0.75 in hail
Reported by: Newspaper
Coordinates: 38.947, -76.859

A local newspaper reported penny-sized hail at the intersection of Interstate 95 and Route 50 near Glenarden.

Thunderstorm Wind, Charles

When: June 4, 2:30 PM EST
Where: Charles County, 0.79 mi ENE of Mattawoman
Measured: 50 kt (58 mph) estimated gust
Property damage: $25,000
Reported by: Trained Spotter
Coordinates: 38.655, -76.867

A trained spotter reported large branches down and fences down on Evergreen Drive near Waldorf. One tree fell onto a house.

Thunderstorm Wind, Calvert

When: June 4, 2:33 PM EST
Where: Calvert County, 1.38 mi N of Owings
Measured: 52 kt (60 mph) measured gust
Property damage: $10,000
Reported by: Trained Spotter
Coordinates: 38.740, -76.600

A trained spotter measured a wind gust of 60 MPH and observed trees and power lines down near Owings.

Thunderstorm Wind, Anne Arundel

When: June 4, 2:37 PM EST
Where: Anne Arundel County, 3.02 mi WSW of Rutland
Measured: 50 kt (58 mph) estimated gust
Property damage: $20,000
Reported by: Public
Coordinates: 38.950, -76.680

Gusty winds downed several trees and lifted a barn on Governor Bridge Road in Davidsonville.

Thunderstorm Wind, Baltimore

When: June 4, 2:37 PM EST
Where: Baltimore County, 0.45 mi WNW of Belltown
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Newspaper
Coordinates: 39.433, -76.808

A local newspaper reported a branch went through a roof of a house on Church Road in Owings Mills.

Thunderstorm Wind, Howard

When: June 4, 2:38 PM EST
Where: Howard County, 1.75 mi SE of Jonestown
Measured: 50 kt (58 mph) estimated gust
Property damage: $3,000
Reported by: Trained Spotter
Coordinates: 39.200, -76.800

A trained spotter reported a tree down and several damaged in Columbia.

Thunderstorm Wind, Anne Arundel

When: June 4, 2:40 PM EST
Where: Anne Arundel County, Crownsville
Measured: 50 kt (58 mph) estimated gust
Property damage: $20,000
Reported by: Public
Coordinates: 39.030, -76.600

Gusty winds downed several trees and a radio tower in Crownsville.

Tornado, Calvert

When: June 4, 2:40 PM EST to 2:45 PM EST
Where: Calvert County, 1.08 mi E of Paris to 0.58 mi NNW of Chesapeake Beach
Rating: EF0
Path length: 1.64 mi
Path width: 75 yd
Property damage: $400,000
Reported by: NWS Storm Survey
Coordinates: 38.700, -76.560

An NWS storm survey concluded that a high end EF-0 tornado impacted portions of Chesapeake Beach in Calvert County. Maximum winds were estimated to be 85 mph. Approximately a dozen hardwood trees in the Richfield Station area were uprooted. One single family home had a 3 foot diameter poplar tree fall through the roof. Portions of roofs and siding were torn away from 10 to 20 single family homes. Tree and roof damage also occurred in the Bayview Hills area of Chesapeake Beach. In this location, siding on opposite sides of a single family home was observed. A free standing light pole in Lynwood T. Kellam Memorial Recreational Park was bent. The entire roof decking of a restaurant on bayside Road was blown away. Damages were estimated at over $400,000.

Thunderstorm Wind, Prince George'S

When: June 4, 2:40 PM EST
Where: Prince George'S County, 1.28 mi ENE of Ritchie
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Trained Spotter
Coordinates: 38.880, -76.830

A trained spotter reported trees down in Largo.

Thunderstorm Wind, Prince George'S

When: June 4, 2:42 PM EST
Where: Prince George'S County, 3.1 mi NE of Mitchellville
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Newspaper
Coordinates: 38.948, -76.705

A local newspaper reported trees down on Governors Bridge Road in Bowie.

Thunderstorm Wind, Anne Arundel

When: June 4, 2:43 PM EST
Where: Anne Arundel County, 1.28 mi WSW of Selby Beach
Measured: 50 kt (58 mph) estimated gust
Property damage: $20,000
Reported by: Newspaper
Coordinates: 38.890, -76.540

A local newspaper reported downed trees and power lines at a camp in Edgewater. Eight canoes, a shed and a canoe stand were destroyed.

Thunderstorm Wind, Anne Arundel

When: June 4, 2:45 PM EST
Where: Anne Arundel County, 1.8 mi NNW of St Margarets to 1.52 mi NNW of St Margarets
Measured: 50 kt (58 mph) estimated gust
Property damage: $30,000
Reported by: Trained Spotter
Coordinates: 39.055, -76.477

A trained spotter reported numerous trees and wires down on Bayberry Drive in Arnold. One home on Bayberry Drive had a tree fall through the damage, crushing a car.

Thunderstorm Wind, Anne Arundel

When: June 4, 2:45 PM EST
Where: Anne Arundel County, 0.69 mi N of Bristol
Measured: 50 kt (58 mph) estimated gust
Property damage: $7,000
Reported by: Trained Spotter
Coordinates: 38.790, -76.670

A trained spotter reported several large trees down in Bristol.

Thunderstorm Wind, Anne Arundel

When: June 4, 2:45 PM EST
Where: Anne Arundel County, 1.03 mi ESE of Selby Beach to 0.86 mi ESE of Selby Beach
Measured: 50 kt (58 mph) estimated gust
Property damage: $10,000
Reported by: Amateur Radio
Coordinates: 38.894, -76.503

An amateur radio operator relayed a report of trees and power lines downed on Beach Road.

Thunderstorm Wind, Anne Arundel

When: June 4, 2:50 PM EST
Where: Anne Arundel County, 1.38 mi S of Revell
Measured: 50 kt (58 mph) estimated gust
Property damage: $10,000
Reported by: Newspaper
Coordinates: 39.050, -76.530

A local newspaper reported a tree fell onto a car on Severn Ave in near Severna Park.

Thunderstorm Wind, Anne Arundel

When: June 4, 2:50 PM EST
Where: Anne Arundel County, 0.69 mi N of Robinson
Measured: 65 kt (75 mph) estimated gust
Property damage: $50,000
Reported by: Newspaper
Coordinates: 39.080, -76.570

An NWS Storm Survey concluded that straight line winds downed numerous trees in Severna Park. A large number of hardwood trees, some up to 4 feet in diameter were uprooted. Several trees fell onto houses.

Thunderstorm Wind, Baltimore City (C)

When: June 4, 2:51 PM EST
Where: Baltimore City (C) County, 0.82 mi ESE of Mt Royal
Measured: 50 kt (58 mph) estimated gust
Property damage: $1,000
Reported by: Newspaper
Coordinates: 39.316, -76.615

A local newspaper reported a tree down on St. Paul Street.

Thunderstorm Wind, Baltimore

When: June 4, 2:51 PM EST
Where: Baltimore County, 1.17 mi S of Dundalk to 1.02 mi S of Dundalk
Measured: 50 kt (58 mph) estimated gust
Property damage: $25,000
Reported by: Newspaper
Coordinates: 39.253, -76.518

A local newspaper reported several trees down on Dunran, Dunhill and Dunglow roads. One tree fell on a car while another tree fell onto a house, causing minor damage.

Thunderstorm Wind, Baltimore City (C)

When: June 4, 2:52 PM EST
Where: Baltimore City (C) County, 0.53 mi E of Baltimore
Measured: 56 kt (64 mph) estimated gust
Reported by: Trained Spotter
Coordinates: 39.300, -76.610

A trained spotter estimated a wind gust of 65 MPH in northern Baltimore City.

Thunderstorm Wind, Anne Arundel

When: June 4, 2:56 PM EST
Where: Anne Arundel County, 1.28 mi ENE of St Margarets
Measured: 50 kt (58 mph) estimated gust
Property damage: $7,000
Reported by: Newspaper
Coordinates: 39.040, -76.450

A local newspaper reported trees and power lines down in Cape St. Claire.

Thunderstorm Wind, Baltimore

When: June 4, 2:56 PM EST
Where: Baltimore County, 1.17 mi ENE of Dundalk
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Unknown
Coordinates: 39.274, -76.499

Several trees were snapped or uprooted on Creston Road near Dundalk.

Thunderstorm Wind, Baltimore

When: June 4, 3:05 PM EST
Where: Baltimore County, 0.55 mi SE of Kingsville
Measured: 50 kt (58 mph) estimated gust
Property damage: $15,000
Reported by: Newspaper
Coordinates: 39.444, -76.413

A local newspaper reported a tree fell onto a home on Bellvue Ave in Kingsville.

Thunderstorm Wind, Baltimore

When: June 4, 3:05 PM EST
Where: Baltimore County, 0.54 mi E of Upper Falls to 0.5 mi SSE of Franklinville
Measured: 50 kt (58 mph) estimated gust
Property damage: $10,000
Reported by: Department of Highways
Coordinates: 39.429, -76.390

Maryland Department of Highways reported trees down on Reynolds Road, Bradshaw Road and Gerwell Court in the Upper Falls area.

Thunderstorm Wind, Baltimore

When: June 4, 3:07 PM EST
Where: Baltimore County, 1.27 mi WSW of Edgemere
Measured: 50 kt (58 mph) estimated gust
Reported by: Newspaper
Coordinates: 39.220, -76.470

A local newspaper reported a crane collapsed at Sparrows Point. No one was injured.

Thunderstorm Wind, Baltimore

When: June 4, 3:10 PM EST
Where: Baltimore County, 5.48 mi NE of Baldwin
Measured: 50 kt (58 mph) estimated gust
Property damage: $50,000
Reported by: Newspaper
Coordinates: 39.561, -76.404

A local newspaper reported a tree into a house on the 3600 block of Turnbridge Road in Forest Hills. The second and third floors were destroyed.

Thunderstorm Wind, Harford

When: June 4, 3:10 PM EST
Where: Harford County, 1.13 mi N of Jerusalem
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Emergency Manager
Coordinates: 39.466, -76.382

Harford County Emergency Management reported trees and power lines down on Old Joppa Road.

Hail, St. Mary'S

When: June 4, 5:00 PM EST
Where: St. Mary'S County, 0.88 mi NW of Mechanicsville
Measured: 0.88 in hail
Reported by: Unknown
Coordinates: 38.440, -76.740

Nickel-sized hail was reported in Mechanicsville.

Hail, Prince George'S

When: June 4, 5:30 PM EST
Where: Prince George'S County, 1.75 mi ESE of Collington
Measured: 0.75 in hail
Reported by: Trained Spotter
Coordinates: 38.960, -76.740

A CoCoRahs observer reported penny-sized hail in Bowie.

Thunderstorm Wind, Montgomery

When: June 4, 6:59 PM EST
Where: Montgomery County, 0.87 mi NW of Colesville
Measured: 50 kt (58 mph) estimated gust
Property damage: $4,000
Reported by: Trained Spotter
Coordinates: 39.090, -77.010

A trained spotter reported trees down in Colesville.

Thunderstorm Wind, Anne Arundel

When: June 4, 7:17 PM EST
Where: Anne Arundel County, 0.69 mi N of Mayfield
Measured: 50 kt (58 mph) estimated gust
Property damage: $10,000
Reported by: Emergency Manager
Coordinates: 39.110, -76.680

Anne Arundel County Emergency Management reported trees and power lines down near Ridgeway.

Thunderstorm Wind, Charles

When: June 4, 7:22 PM EST
Where: Charles County, 0.69 mi S of Cobb Is
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Newspaper
Coordinates: 38.260, -76.850

A local newspaper reported downed trees in Cobb Island.

Thunderstorm Wind, Prince George'S

When: June 4, 7:25 PM EST
Where: Prince George'S County, 1.48 mi SSE of Largo
Measured: 50 kt (58 mph) estimated gust
Property damage: $10,000
Reported by: Emergency Manager
Coordinates: 38.880, -76.820

Prince Georges County Emergency Management reported trees and power lines down in Largo.

Thunderstorm Wind, Baltimore

When: June 4, 8:40 PM EST
Where: Baltimore County, 1.28 mi SSW of Upper Falls
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Unknown
Coordinates: 39.413, -76.408

Several trees were downed around Philadelphia and Forge roads.

Thunderstorm Wind, Calvert

When: June 4, 8:41 PM EST
Where: Calvert County, Port Republic
Measured: 50 kt (58 mph) estimated gust
Property damage: $10,000
Reported by: Emergency Manager
Coordinates: 38.500, -76.530

Calvert County Emergency Management reported downed trees and wires in Port Republic.

Thunderstorm Wind, Anne Arundel

When: June 4, 8:45 PM EST to 8:48 PM EST
Where: Anne Arundel County, 2.8 mi WSW of Rutland
Measured: 50 kt (58 mph) estimated gust
Property damage: $20,000
Reported by: NWS Storm Survey
Coordinates: 38.956, -76.679

An NWS Storm Survey concluded that straight line winds were responsible for several downed trees along Patxuent River and Governor Bridge roads. A barn roof on Governor Bridge Road was lifted off its foundation.

Thunderstorm Wind, St. Mary'S

When: June 4, 8:45 PM EST
Where: St. Mary'S County, 0.69 mi N of St Marys City
Measured: 50 kt (58 mph) estimated gust
Property damage: $8,000
Reported by: Emergency Manager
Coordinates: 38.190, -76.430

St. Mary's County Emergency Management reported trees and power lines down in St. Mary's City.

Thunderstorm Wind, St. Mary'S

When: June 4, 11:45 PM EST
Where: St. Mary'S County, 0.76 mi WNW of Patuxent River
Measured: 51 kt (59 mph) measured gust
Reported by: Other Federal Agency
Coordinates: 38.286, -76.412

The automated observation at Patuxent River naval Air Station measured a wind gust of 59 MPH.

Lightning, St. Mary'S

When: June 4, 11:45 PM EST
Where: St. Mary'S County, 0.33 mi NW of Lnrdtwn St Marys Arp
Property damage: $5,000
Reported by: Newspaper
Coordinates: 38.323, -76.555

A local newspaper reported that lightning struck a home on Sandy Bottom Road, sparking a fire.

Lightning, St. Mary'S

When: June 4, 11:45 PM EST
Where: St. Mary'S County, 0.74 mi NNE of Park Hall
Property damage: $250,000
Reported by: Newspaper
Coordinates: 38.230, -76.427

A local newspaper reported that a lightning-sparked fire destroyed a home on Brookstone Way in Hermanville.

What these are

Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Lightning: A lightning strike that killed, injured or caused damage.
Tornado: A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Maryland in 2008 Every state in 2008 This day in weather history The tornado archive for Maryland, 2008 Warnings in Maryland, June 2008

Sources

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: 104110, 104063, 104107, 104059, 104109, 104064, 104058, 104062, 104072, 104074, 104060, 104076, 104068, 104071, 104073, 104075, 104077, 104061, 104065, 104069, 104087, 104079, 104055, 104078, 104083, 108107, 104085, 104050, 104051, 104052, 104080, 104081, 104093, 104095, 104082, 104049, 104092, 104098, 104053, 104044, and more.