A warm front moved north of the region April 11th. Scattered showers and thunderstorms developed in the wake of the warm front in advance of a strengthening cold front to the west.
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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.
The episode as NWS LWX wrote it up.
A warm front moved north of the region April 11th. Scattered showers and thunderstorms developed in the wake of the warm front in advance of a strengthening cold front to the west. Several strong to severe thunderstorms developed along the front, producing damaging winds in portions of Highland County.
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 Apr 11, 1:47 PM EST, 5 hours 4 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 247 PM EDT FRI APR 11 2008 .SYNOPSIS... A COLD FRONT WILL MOVE ACROSS THE AREA SATURDAY. AN UPPER LEVEL LOW WILL BRING COOLER AND UNSETTLED CONDITIONS SUNDAY AND MONDAY. HIGH PRESSURE IS EXPECTED TO RETURN BY THE MIDDLE OF NEXT WEEK...PROVIDING WARMER AND DRY CONDITIONS. && .NEAR TERM /UNTIL 6 AM SATURDAY MORNING/... SURFACE ANALYSIS AT 17Z SHOWS LOW PRESSURE CENTERED OVER NORTHERN IOWA. A COLD FRONT EXTENDED SOUTH FROM ILLINOIS TO MISSISSIPPI. A WARM FRONT WAS ALSO NOTED FROM SOUTHERN WISCONSIN EAST TO PENNSYLVANIA. SURFACE OBSERVATIONS SHOWED TEMPERATURES IN THE MID TO UPPER 70S AND DEW POINTS IN THE MID TO UPPER 50S WITH SOUTHERLY WINDS GUSTING TO 20 KNOTS. MAIN CHALLENGE FOR TONIGHT IS THE CHANCE OF PRECIPITATION AND OR CONVECTION. WRF-ARW AND NMM RUNS TODAY HAVE SHOWN DIFFICULTY CATCHING CURRENT CONVECTION TO THE SOUTH AND EAST AND PROVIDE VERY DIFFERENT SOLUTIONS FOR THE OVERNIGHT. WRF-ARW4N AND WRF-NMM4N SHOWS PLENTY OF CONVECTION OVERNIGHT...MAINLY ACROSS THE NORTHERN HALF OF THE FORECAST AREA. THE WRF-NMM12G SHOWS A QUIET SCENARIO WITH ONLY A FEW SHOWERS ACROSS THE REGION OVERNIGHT. HAVE TONED BACK THE MENTION OF CONVECTION OVERNIGHT. AS LOW PRESSURE ELONGATES AND SPLITS TO THE NORTH...THE FRONT AND ITS ASSOCIATED SUPPORT WILL WEAKEN. THERE WILL BE SOME INSTABILITY...BUT MOST OF THE ONGOING CONVECTION TO THE SOUTHEAST HAS BEEN SUPPORTED MORE BY DAYTIME HEATING THAN THE ACTUAL FRONT. CANNOT RULE OUT SOME THUNDER OVERNIGHT...BUT COVERAGE WILL BE MOSTLY ISOLATED. HIGHEST OVERALL POPS...LIKELY CATEGORY...WILL BE IN THE NORTH AND WEST OVERNIGHT CLOSEST TO THE FRONT. OVERNIGHT...SOUTHERLY FLOW AND WARM ADVECTION WILL KEEP LOW TEMPERATURES QUITE A BIT ABOVE NORMAL. LOOKING FOR LOWS TO BE IN THE UPPER 50S TO LOWER 60S OVERNIGHT...WITH AROUND 50 OUT WEST. && .SHORT TERM /6 AM SATURDAY MORNING THROUGH 6 PM SATURDAY/... THE FRONT SHOULD BE OVER THE BLUE RIDGE BY 12Z SATURDAY MORNING. CONVECTIVE POTENTIAL WILL PRIMARILY DEPEND ON HOW MUCH THE FRONT STRETCHES AND STALLS OVER THE REGION SATURDAY. SPC DAY 2 SLIGHT RISK GOES NORTH INTO LOWER SOUTHERN MARYLAND WITH THE GENERAL THUNDER OUTLOOK JUST WEST OF THE BLUE RIDGE. BECAUSE THE FRONT IS NOT MOVING EAST VERY FAST...COLD ADVECTION DOES NOT GAIN CONTROL. THIS SHOULD ALLOW TEMPERATURES TOMORROW TO REACH BACK INTO THE MID 70S EAST OF THE BLUE RIDGE. ALSO...CLOUDS ARE EXPECTED TO STICK AROUND TOMORROW. THIS COULD BECOME MORE COMPLICATED IF THE FRONT SPEEDS UP OR STALLS FURTHER SOUTHEAST. MOS TEMPERATURE GUIDANCE SHOWED THIS DISCREPANCY...WITH MET BEING SEVERAL DEGREES WARMER THAN THE MAV. CHOSE THE MIDDLE GROUND...LEANING ON THE WARMER SIDE FOR EAST OF THE RIDGE. GUSTY WINDS AROUND 20 KNOTS CAN ALSO BE EXPECTED. && .LONG TERM /SATURDAY NIGHT THROUGH FRIDAY/... 12Z GFS AND GFS ENSEMBLE MEAN MOVE THE COLD FRONT ACROSS LOWER SOUTHERN MARYLAND AND THE LOWER MARYLAND CHESAPEAKE BAY SATURDAY EVENING. THIS IS WHERE ONGOING CONVECTION WILL LINGER EARLY IN THE EVENING BEFORE EXITING THE CWA. ALOFT...STRONG AGREEMENT EXISTS AMONG THE MODELS AND ENSEMBLES IN AN UPPER TROUGH DIGGING SOUTH INTO THE MID ATLANTIC AND SOUTHEAST CONUS SUNDAY...AND LINGERING INTO EARLY NEXT WEEK. 500 MB HEIGHTS SUNDAY AFTERNOON ARE FORECAST TO BE CLOSE TO 540 DM ACROSS THE MID ATLANTIC...SLOWLY RISING MONDAY INTO TUESDAY. WITH COLD AIR ALOFT IN PLACE AND CLOSE PROXIMITY TO THE UPPER TROUGH...SUNDAY WILL BE CHARACTERIZED BY PLENTY OF CLOUDS AND SCATTERED SHOWERS ESPECIALLY IN THE AFTERNOON. HAVE INCREASED POPS ACROSS THE CWA SUNDAY AFTERNOON AND LINGERED INTO THE EVENING BEFORE THE SUN SETS. WHILE COVERAGE MAY BE LESS OVERNIGHT SUNDAY...INFLUENCE FROM THE UPPER TROUGH COULD KEEP ISOLATED SHOWERS ACROSS THE AREA /WHICH COULD BE SNOW SHOWERS ACROSS HIGHER ELEVATIONS/. MODELS AND ENSEMBLES SHIFT ANY FAVORABLE LIFT MORE CLOSELY CONNECTED TO THE UPPER TROUGH A LITTLE FURTHER SOUTH OF OUR CWA ON MONDAY. YET...WITH COLD AIR ALOFT LINGERING...A PLETHORA OF CLOUDS WILL CONTINUE AND THERE STILL MAY BE ISOLATED SHOWERS. HAVE BROADBRUSHED A 20 POPS ACROSS THE CWA ATTM. PREFER THE SOLUTION OF THE UPPER TROUGH BEING KICKED EAST INTO THE WESTERN ATLANTIC TUESDAY INTO WEDNESDAY...AS AN UPPER RIDGE BUILDS EAST TOWARD THE MID ATLANTIC. 00Z ECMWF ISNT AS PROGRESSIVE IN KICKING THE UPPER TROUGH EAST AND TILTS MORE MOISTURE BACK INTO OUR CWA WEDNESDAY INTO THURSDAY. HAVE KEPT FORECAST DRY ATTM...WITH GFS AND GFS ENSEMBLES HIGHLIGHTING HEIGHT RISES AS A RIDGE BUILDS EAST. THIS WILL ALSO BRING TEMPERATURES BACK NEAR CLIMATOLOGY OVER THE COOLER EARLY WEEK VALUES. GFS INDICATES A WEAK SHORTWAVE AFFECTING THE CWA ON FRIDAY. WHETHER OR NOT IT IMPACTS THE CWA DEPENDS ON HOW STRONG THE RIDGING IS ACROSS OUR CWA. FOLLOWED HPC GUIDANCE FOR POPS RELEGATED TO THE MTNS AROUND 20 PCT. && .AVIATION /19Z FRIDAY THROUGH WEDNESDAY/... INCREASED SOUTHERLY FLOW THIS AFTERNOON WILL CONTINUE THROUGH THE EVENING. LOCALIZED IFR FLIGHT RESTRICTIONS POSSIBLE LATE THIS EVENING INTO SATURDAY MORNING WITH SHOWERS AND THUNDERSTORMS. CONFIDENCE IS STILL NOT HIGH ENOUGH TO CARRY A PREDOMINANT MENTION OF SHOWERS AND THUNDERSTORMS...SO ONLY VICINITY SHOWERS WITH CB NOTED THIS PACKAGE. GFSLAMP INDICATES THE POTENTIAL FOR LOW CEILINGS AND VISIBILITIES AT KMTN WITH MORE OF A SOUTHEASTERLY COMPONENT. DID NOT GO AS PESSIMISTIC AS GFSLAMP WITH THE 18Z TAF PACKAGE...BUT DID CARRY A TEMPO GROUP FOR MVFR VISIBILITIES AND IFR CEILINGS. SHOWERS AND MAYBE A FEW THUNDERSTORMS ARE POSSIBLE AGAIN SATURDAY MORNING. WINDS WILL SHIFT FROM SOUTH TO WEST SATURDAY AFTERNOON. THESE MAY AGAIN BE GUSTY...POSSIBLY TO 20 KNOTS. AN UPPER TROUGH WILL KEEP UNSETTLED CONDITIONS ACROSS THE TERMINALS SUNDAY INTO MONDAY. SHOWERS WILL HAVE THE POTENTIAL TO PRODUCE MVFR CONDITIONS. HIGH PRESSURE IS EXPECTED DURING THE MIDDLE OF NEXT WEEK. && .MARINE... SMALL CRAFT ADVISORY REMAINS IN EFFECT THROUGH SATURDAY EVENING. WILL NEED TO KEEP AN EYE OVER THE WATERS THIS EVENING AND OVERNIGHT FOR STRONGER STORMS THAT MAY PROMPT MARINE HAZARDS. MODELS INDICATE THAT A SMALL CRAFT ADVISORY MAY BE NECESSARY MONDAY INTO TUESDAY. INCREASED WINDS INTO THE 15 TO 20 KT RANGE DURING THAT TIME. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...NONE. MD...NONE. VA...NONE. WV...NONE. MARINE...SMALL CRAFT ADVISORY UNTIL 8 PM EDT SATURDAY FOR ANZ530>537. && SYNOPSIS...PELOQUIN NEAR TERM...SAR SHORT TERM...SAR LONG TERM...PELOQUIN AVIATION...SAR/PELOQUIN MARINE...SAR/PELOQUIN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 328 PM EDT FRI APR 11 2008 ANZ530>537-DCZ001-MDZ006-007-011-013-014-016>018-VAZ052>057- 121000- 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- 328 PM EDT FRI APR 11 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 SMALL CRAFT ADVISORY IS IN EFFECT FOR THE TIDAL POTOMAC RIVER AND MARYLAND PORTION OF THE CHESAPEAKE BAY TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A COLD FRONT WILL BRING SOME SHOWERS AND THUNDERSTORMS ACROSS THE OUTLOOK AREA SATURDAY. A FEW THUNDERSTORMS WILL HAVE THE POTENTIAL TO PRODUCE DAMAGING WINDS. THIS IS MOST LIKELY DURING THE AFTERNOON AND EARLY EVENING ALONG AND TO THE EAST OF INTERSTATE 95. A SMALL CRAFT ADVISORY REMAINS IN EFFECT FOR THE TIDAL POTOMAC AND MARYLAND PORTION OF THE CHESAPEAKE BAY THROUGH SATURDAY EVENING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT. MDZ003>005-009-010-501-502-VAZ021-025>031-036>042-050-051- WVZ050>055-501>504-121000- 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- 328 PM EDT FRI APR 11 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 COLD FRONT WILL APPROACH THE OUTLOOK AREA TONIGHT...BRINGING SOME SHOWERS AND THUNDERSTORMS. WHILE SEVERE WEATHER IS NOT EXPECTED...A FEW THUNDERSTORMS LATE THIS AFTERNOON AND EVENING WILL HAVE THE POTENTIAL TO PRODUCE WIND GUSTS UP TO 50 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 704 PM EDT FRI APR 11 2008 VAZ021-025-026-WVZ050-054-055-502>504-112345- HIGHLAND VA-PENDLETON WV-HARDY WV-HAMPSHIRE WV-EASTERN GRANT WV- WESTERN MINERAL WV-EASTERN MINERAL WV-AUGUSTA VA-ROCKINGHAM VA- 704 PM EDT FRI APR 11 2008 ...STRONG THUNDERSTORMS TO AFFECT HIGHLAND...PENDLETON...HARDY... HAMPSHIRE...EASTERN GRANT...WESTERN MINERAL...EASTERN MINERAL... AUGUSTA AND ROCKINGHAM COUNTIES... AT 704 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM KEYSER TO 13 MILES SOUTHWEST OF BOLAR...MOVING EAST AT 37 MPH. THESE STORMS WILL BE CAPABLE OF PRODUCING BRIEF HEAVY RAIN... FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL AND WIND GUSTS TO 50 MPH. THE COMMUNITIES OF MONTEREY...UPPER TRACK...ROMNEY AND MOOREFIELD WILL BE AFFECTED BY THESE STORMS. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE WARNINGS ARE ISSUED. HTS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 745 PM EDT FRI APR 11 2008 MDZ003-VAZ027-028-030-WVZ050>052-055-120030- WASHINGTON MD-WARREN VA-SHENANDOAH VA-HARDY WV-HAMPSHIRE WV- BERKELEY WV-MORGAN WV-FREDERICK VA- 745 PM EDT FRI APR 11 2008 ...STRONG THUNDERSTORMS TO AFFECT WASHINGTON...WARREN...SHENANDOAH... HARDY...HAMPSHIRE...BERKELEY...MORGAN AND FREDERICK COUNTIES... AT 745 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES NORTHWEST OF BLOOMERY TO 6 MILES WEST OF MATHIAS...MOVING EAST AT 52 MPH. THESE STORMS WILL BE CAPABLE OF PRODUCING BRIEF HEAVY RAIN... FREQUENT LIGHTNING STRIKES...SMALL HAIL AND WIND GUSTS TO 50 MPH. THE COMMUNITIES OF MATHIAS...MARTINSBURG...STRASBURG... WILLIAMSPORT...INWOOD AND STEPHENS CITY WILL BE AFFECTED BY THESE STORMS. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE WARNINGS ARE ISSUED. HTS
The Roanoke radar (KFCX), 160 km away, was scanning. The volume nearest the first event began at 23:49 UTC.
1 thunderstorm wind. Local standard time, as filed.
A county official reported power lines down along Route 84 in Vanderpool.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Virginia in 2008Every state in 2008This day in weather historyWarnings in Virginia, April 2008
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: 93404.