Thunderstorm Wind, Washington
- When
- July 19, 5:00 PM EST
- Where
- Washington County, 10 mi W of Hagerstown
- Measured
- 50 kt (58 mph) estimated gust
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 39.650, -77.900
Numerous trees were down countywide.
Damaging Wind in Maryland, July 19, 2005
A tropical airmass located over the mid-Atlantic contributed in the initialization of scattered thunderstorms during the afternoon and evening.
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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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 tropical airmass located over the mid-Atlantic contributed in the initialization of scattered thunderstorms during the afternoon and evening.
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 Jul 19, 1:57 PM EST, 3 hours 3 minutes earlier.
Area forecast discussion, Jul 19, 1:57 PM EST, 3 hours 3 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
257 PM EDT TUE JUL 19 2005
.SHORT TERM (TONIGHT)...
BKN LINE OF TSRA ACRS CWFA ATTM FM SW TO NE. AREA ALIGNS REAL WELL
W/ S/WV DEPICTED IN NAM. CURIOUSLY...NAM MOS DRY...AND WUD RATHER HV
EVENING POPS BASED UPON CRRNT OBS/FRNTL POSN /ACRS PA AND INTO OHIO
VLY/. GRIDS CLSR RESEMBLE GFS MOS...SINCE IT MATCHED OBSVD DATA.
VORT CLEARS AREA 00-03Z. SINCE INSTBLTY DECREASES AS WELL...POPS WL
DIMINISH AFTR MIDNGT. HWVR...WL HOLD ONTO 20S CHO-NHK INVOF FRONT
THRU THE NGT. DEWPTS WL DROP ABT 5 DEG F AS BNDRY SETTLES IN AS
WELL...MEANING MIN-T WONT BE AS OPPRESSIVE. MOS CLUSTERED...AND WENT
ON THE HIGHER SIDE...SINCE DRY UPR LVL WONT MAKE IT IN TNGT...SO
CLDCVR STILL XPCTD.
&&
.LONG TERM (WEDNESDAY THROUGH TUESDAY)...
WEDNESDAY...COLD FRONT WILL CONTINUE TO PRESS SOUTH...CLEARING MOST
OF OUR CWA. FRONT WILL PROBABLY STALL SOMEWHERE OVER LOWER SOUTHERN
MD/LOWER CHESAPEAKE BAY. WILL INSERT SLGT CHC POPS THROUGH THE DAY
FOR THIS SMALL CHUNK OF OUR CWA...WHILE DRYING OUT THE REMAINDER OF
THE CWA AS BOTH THE GFS AND NAM ARE IN LINE WITH PUSHING LOWER
PRECIPITABLE WATER AIR SOUTHWARD (DOWN TO 1.2 INCHES OR SO ON KDCA
BUFKIT). SFC DEWPOINTS WILL ALSO DECREASE THROUGH MUCH OF OUR
CWA...RESTING NEAR 70 F AT KDCA BY AFTERNOON (NOT A GREAT
DECREASE...BUT AN IMPROVEMENT FROM 75 F). WHILE MOISTURE WILL
DECREASE BEHIND THE FRONT...TEMPERATURES WON/T. THICKNESSES ARE
FORECAST TO BE SIMILAR TO TODAY AND...IN FACT...A WESTERLY
DOWNSLOPING WIND COMPONENT WOULD OFFER 1-2 F WARMING OVER TODAY.
STILL...WITH LOWER DEWPOINTS...HEAT INDEX VALUES WILL BE IN THE
LOWER TO MID 90S...BELOW HEAT ADVISORY CRITERIA.
THURSDAY...OLD BOUNDARY WILL LOSE MUCH OF ITS IDENTITY...BUT
WHATEVER IS LEFT OF IT WILL START TO BOW BACK NORTH...AND
PRECIPITABLE WATERS AND SFC DEWPOINTS WILL UNDERGO AN INCREASING
TREND. DO NOT REALLY SEE MUCH OF A FOCUS FOR CONVECTION...ASIDE FROM
RETURNING MOISTURE AND INSTABILITY. SLGT CHC POPS ACROSS ENTIRE CWA
LOOK THE WAY TO GO...WITH ANOTHER DEGREE OR TWO OF WARMING TACKED ON
TO WEDNESDAY/S HIGH TEMPS.
FRIDAY AND BEYOND...STILL LIKE THE IDEA THE MODELS HAVE BEEN SHOWING
FOR THE PAST COUPLE OF DAYS OF A COLD FRONT APPROACHING FROM THE
WEST ON FRIDAY. KEPT CHC POPS FOR SHRA/TSRA WITH COLD FRONT
COMBINING WITH INSTABILITY AND MOISTURE. MODELS AND HPC AGREE ON
FROPA BY SATURDAY...AND HIGH PRESSURE BUILDING IN BEHIND THE FRONT
FOR THE WEEKEND. ASSUMING CLEAN FROPA...THIS WEEKEND WILL BE DRY
WITH PRECIP WATERS/DEWPOINTS LOWERING MORE THAN THEY ARE FORECAST TO
FOR WEDNESDAY. DESPITE MINIMAL TEMP INCREASE ON SATURDAY...THE HEAT
WILL BUILD SUNDAY INTO EARLY NEXT WEEK AS A STRONG UPPER RIDGE
EXPANDS EAST INTO THE MID ATLANTIC. MOISTURE AND INSTABILITY WILL
RETURN TO THE REGION EARLY NEXT WEEK AS WELL AS SFC HIGH PRESSURE
MOVES OFF THE MID ATLANTIC COAST AND WINDS TURN TO THE SOUTH...AND
HAVE INCLUDED SLGT CHC 20 POPS MONDAY AND TUESDAY FOR CONVECTION.
&&
.AVIATION...
TEMPO MVFR VSBY RESTRICTIONS TAKEN AHD OF PCPN CRRNTLY
ON RADAR. OTRW...A FEW VCTS...THEN VFR. TOOK VSBYS DWN TO MVFR LVLS
PREDAWN AS DRIER AIR A LTL SLOW TO ADVECT DWN. VSBY ACTUALLY HIEST
AT KMRB DUE TO PROXIMITY TO DRY AMS. VFR TMRW MRNG ON WNW WNDS.
&&
.LWX WATCHES/WARNINGS/ADVISORIES...
DC...HEAT ADVISORY FOR DCZ001 UNTIL 8 PM TUESDAY.
MD...HEAT ADVISORY FOR MDZ004>007-009>011-013-014-016>018 UNTIL 8
PM TUESDAY.
VA...HEAT ADVISORY FOR VAZ036>042-050>057 UNTIL 8 PM TUESDAY.
WV...NONE.
MARINE...NONE.
&&
SHORT TERM/AVIATION...HTS
LONG TERM...PELOQUINHazardous weather outlook, Jul 19, 11:00 AM EST, 6 hours before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1200 PM EDT TUE JUL 19 2005 ANZ530>537-MDZ002-003-VAZ021-025>031-WVZ048>055-201030- 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-ALLEGANY- WASHINGTON-HIGHLAND-AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA- PAGE-WARREN-CLARKE-GRANT-MINERAL-HAMPSHIRE-MORGAN-BERKELEY- JEFFERSON-PENDLETON-HARDY- 1200 PM EDT TUE JUL 19 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND EAST OF GARRETT COUNTY...THE CHESAPEAKE BAY...EASTERN WEST VIRGINIA... NORTHERN AND CENTRAL VIRGINIA... AND THE TIDAL POTOMAC RIVER. .DAY ONE...TODAY AND TONIGHT THERE WILL BE A GOOD CHANCE FOR THUNDERSTORMS TODAY AND EARLY TONIGHT. ANY OF THESE MAY CONTAIN HEAVY DOWNPOURS...FREQUENT LIGHTNING...AND GUSTY WINDS TO 30 MPH. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED. DCZ001-MDZ004>007-009>011-013-014-016>018-VAZ036>042-050>057- 201030- DISTRICT OF COLUMBIA-FREDERICK MD-CARROLL-NORTHERN BALTIMORE- HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-PRINCE GEORGES- ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT-NELSON-ALBEMARLE-GREENE- MADISON-RAPPAHANNOCK-FAUQUIER-LOUDOUN-ORANGE-CULPEPER- PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX- ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- KING GEORGE- 1200 PM EDT TUE JUL 19 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MARYLAND WEST OF THE CHESAPEAKE BAY AND EAST OF FREDERICK COUNTY...NORTHERN AND CENTRAL VIRGINIA...AND WASHINGTON DC. .DAY ONE...TODAY AND TONIGHT THERE WILL BE A GOOD CHANCE FOR THUNDERSTORMS TODAY AND TONIGHT. ANY OF THESE MAY CONTAIN HEAVY DOWNPOURS...FREQUENT LIGHTNING...AND GUSTY WINDS TO 30 MPH. A HEAT ADVISORY CONTINUES THROUGH THIS EVENING ACROSS THE OUTLOOK AREA. THE HEAT INDEX IS FORECAST TO REACH AROUND 100 DEGREES THIS AFTERNOON. PEOPLE SHOULD PLAN TO TAKE FREQUENT BREAKS FROM THE HEAT AND DRINK PLENTY OF WATER. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED. JB
In the hours before
Special weather statement, Jul 19, 2:47 PM EST, 2 hours 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 347 PM EDT TUE JUL 19 2005 MDZ003-WVZ052-192030- BERKELEY WV-WASHINGTON MD- 347 PM EDT TUE JUL 19 2005 AT 346 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER BEDINGTON IN NORTHERN BERKELEY COUNTY...MOVING EAST AT 15 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING HEAVY RAIN OF UP TO ONE INCH... SMALL HAIL AND WIND GUSTS TO 40 MPH. COMMUNITIES IN NORTHERN BERKELEY AND SOUTH CENTRAL WASHINGTON COUNTY INCLUDING BEAVER CREEK...BOONSBORO...DOWNSVILLE...ST JAMES...MOUNT LENA... ROXBURY ...SHARPSBURG...BERKELEY AND FALLING WATERS WILL BE AFFECTED BY THIS STORM THROUGH 430 PM EDT. SMZ
Special weather statement, Jul 19, 4:19 PM EST, 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 519 PM EDT TUE JUL 19 2005 MDZ003-WVZ051-052-192215- BERKELEY WV-MORGAN WV-WASHINGTON MD- 519 PM EDT TUE JUL 19 2005 AT 517 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES NORTHWEST OF HANCOCK...MOVING SOUTHEAST AT 20 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL...DANGEROUS CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 40 MPH. PORTIONS OF NORTHEASTERN WASHINGTON...NORTHEASTERN BERKELEY AND NORTHEASTERN MORGAN COUNTIES WILL BE AFFECTED BY THIS STORM THROUGH 615 PM EDT. HEAVY RAIN FROM THIS STORM COULD CAUSE PONDING OF WATER ON ROADS AND IN LOW LYING AREAS. EXPECT INTENSE LIGHTNING FROM THIS STORM. DO NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM THREATENS. SMZ
The radar
The Sterling radar (KLWX), 83 km away, was scanning. The volume nearest the first event began at 22:00 UTC.
Event by event
1 thunderstorm wind. Local standard time, as filed.
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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Heat in North Carolina, July 19, 2005
- Heat in Washington, July 19, 2005
- Lightning Strikes in Georgia, July 19, 2005
- Flash Flooding and Flood in Kansas, July 19, 2005
- Lightning Strike in New Hampshire, July 19, 2005
- Lightning Strike in North Carolina, July 19, 2005
- Lightning Strike in North Carolina, July 19, 2005
- Flash Flood in North Carolina, July 19, 2005
- Damaging Wind and Lightning Strikes in Rhode Island, July 19, 2005
- Damaging Wind and Lightning Strike in New Hampshire, July 19, 2005
- Lightning Strike in Maine, July 19, 2005
- Flash Flood and Hail in Minnesota, July 19 to 20, 2005
More
Every storm in Maryland in 2005Every state in 2005This day in weather historyWarnings in Maryland, July 2005
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: 5463794.