Repeating thunderstorms with torrential downpours dropped up to around one foot of rain across southern parts of Caroline County. This caused extensive roadway, field and stream flooding.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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 PHI wrote it up.
Repeating thunderstorms with torrential downpours dropped up to around one foot of rain across southern parts of Caroline County. This caused extensive roadway, field and stream flooding. Hardest hit was Federalsburg where 11.5 inches of rain fell. An emergency was declared the morning of the 25th. About 40 people were evacuated along the Marshyhope Creek where the worst flooding occurred. All were permitted to return except for people on the east side of Main Street. Flooding along the Marshyhope Creek destroyed Railroad Avenue and badly damaged the tracks of the Maryland and Delaware Railroad Line. Over a dozen roads were closed in the county including the Central Avenue Bridge in Federalsburg. Three roads were still closed on the 29th. Railroad Avenue was repaired to the point that it was reopened on the 30th. The elementary school in Federalsburg suffered minor damage. Schools were closed throughout the week mainly because of closed roads. The heavy rain caused agricultural damage which ranged from fifteen to forty-five percent losses. The hardest hit crops were cucumbers. Damage also occurred to the wheat crop and early corn and soybean plants drowned. Chicken houses also were flooded. Flooding forced the postponement of the Greensboro Carnival. President George W. Bush declared Caroline and Dorchester Counties a disaster area.
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 Philadelphia/Mount Holly wrote its last area forecast discussion before the first event at Jun 25, 4:00 AM EST, 2 hours earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
500 AM EDT SUN JUN 25 2006
.SHORT TERM /TODAY THROUGH TUESDAY/...
AT 5:00 AM, HEAVY RAIN WAS FALLING IN SOUTHERN DELAWARE AND EXTREME
SOUTHERN NEW JERSEY. RAINFALL RATES OF AN INCH OR TWO PER HOUR WERE
INDICATED BY RADAR.
IN LIGHT OF THE ACTIVITY MENTIONED ABOVE, WEVE EXTENDED THE FLASH
FLOOD WATCH UNTIL NOON FOR THE DELMARVA (SOUTH OF THE CANAL) AND FOR
COASTAL NEW JERSEY. BY THAT TIME, THE AXIS OF HEAVIEST RAIN SHOULD
HAVE SHIFTED BACK TO THE NORTH.
FOR THE REMAINDER OF OUR FORECAST AREA, WEVE EXTENDED THE FLASH
FLOOD WATCH UNTIL 11:00 PM. IT CONTINUES TO APPEAR AS THOUGH THE
FOCUS FOR THE HEAVIEST RAIN WILL DRIFT BACK UP INTO EASTERN
PENNSYLVANIA AND NORTHERN AND CENTRAL NEW JERSEY AS THE DAY
PROGRESSES.
THE FRONTAL BOUNDARY IS EXPECTED TO DRIFT FAR ENOUGH TO OUR NORTH
AND WEST FOR MONDAY AND MONDAY NIGHT TO ALLOW US TO LOWER OUR POPS
INTO THE CHANCE CATEGORY THROUGHOUT OUR FORECAST AREA FOR THAT TIME
PERIOD.
THE REMNANTS OF THE SYSTEM AROUND FLORIDA EARLY THIS MORNING MAY BE
DRAWN NORTHWARD IN THE UPPER FLOW AND UP OVER OUR REGION LATE ON
TUESDAY. AS A RESULT, WEVE INCREASED OUR POPS BACK UP TO LIKELY
FOR TUESDAY AFTERNOON.
&&
.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
THE UPPER PATTERN DIGS IN FOR THE LONG HAUL ONLY EXTENDING THE
CHANCES FOR MORE RAIN. THE BERMUDA HIGH STRENGTHENS OVER THE
WESTERN ATLANTIC WHILE MORE HEIGHT FALLS COMING DOWN FROM CANADA
ONLY SERVE TO REINFORCE THE EASTERN TROUGH. THE SOUTH TO SOUTHWEST
FLOW ALOFT WILL THROW MOISTURE LADEN TROPICAL AND SUBTROPICAL
DISTURBANCES ACROSS THE REGION.
THE SFC FRONT WILL DRIFT BACK TOWARDS THE REGION AND WILL CREATE
DAILY CHC FOR SHOWERS AND AFTERNOON THUNDER...MUCH LIKE THE SHORT
TERM. TEMPS OVER THE PERIOD WILL NOT FEATURE TOO MANY SWINGS AWAY
FROM CLIMATOLOGY WITH ABUNDANT CLOUD COVER EXPECTED. HIGHS WILL
OCCUR DURING BREAKS IN THE CLOUDS DURING THE DAY AND OVERNIGHT MINS
WILL NOT DROP VERY MUCH UNDER THE MUGGY CONDITIONS.
&&
.AVIATION...
IFR CONDITIONS ARE PRETTY MUCH THE NORM EARLY THIS MORNING, EITHER
BEING CAUSED BY ONGOING MODERATE TO HEAVY RAIN OR THE REMNANTS OF.
CONDITIONS ARE EXPECTED TO IMPROVE JUST SLIGHTLY AFTER DAYBREAK.
THE MAIN BAND OF SHOWERS NOW HITTING OUR SOUTHEAST TERMINALS WILL
SHIFT TO THE WEST LATER TODAY. AS THIS TRANSITION OCCURS WE SHOULD
SEE THINGS EASE UP TO THE MVFR RANGE. CEILINGS AND VSBYS ARE
EXPECTED TO DROP ONCE AGAIN TONIGHT.
&&
.MARINE...
WE WILL CONTINUE TO FOLLOW CURRENT TRENDS AND UNDERCUT WAVEWATCH
GUIDANCE. WINDS AND SEAS ARE EXPECTED TO STAY BELOW SCA CRITERIA
THROUGH TONIGHT. HOWEVER, THERE IS SOME CONCERN THAT THE CONTINUING
SOUTHERLY FLOW AND ITS LONG FETCH WILL EVENTUALLY INCREASE SEAS TO 5
FT ON MONDAY.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...FLASH FLOOD WATCH FOR PAZ054-055-060>062-067>071 UNTIL 11 PM
SUNDAY.
NJ...FLASH FLOOD WATCH FOR NJZ001-007>010-012-013-015>019 UNTIL 11
PM SUNDAY.
...FLASH FLOOD WATCH FOR NJZ014-020>027 UNTIL NOON SUNDAY.
DE...FLASH FLOOD WATCH FOR DEZ001 UNTIL 11 PM SUNDAY.
...FLASH FLOOD WATCH FOR DEZ002>004 UNTIL NOON SUNDAY.
MD...FLASH FLOOD WATCH FOR MDZ008 UNTIL 11 PM SUNDAY.
...FLASH FLOOD WATCH FOR MDZ012-015-019-020 UNTIL NOON SUNDAY.
MARINE...NONE.
&&
SHORT TERM...IOVINO
LONG TERM...OHARA
AVIATION/MARINE...KRUZDLOHAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 600 AM EDT SUN JUN 25 2006 ANZ430-431-450>455-470-DEZ001>004-MDZ008-012-015-019-020-NJZ001- 007>010-012>027-PAZ054-055-060>062-067>071-261000- DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE- DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE- COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM- COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20 NM- COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20 NM- COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM- COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM- COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM- WATERS FROM SANDY HOOK NJ TO FENWICK ISLAND DE FROM 20 TO 40 NM- NEW CASTLE-KENT DE-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON- SOMERSET-MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM- GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND- ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC- COASTAL OCEAN-SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH- NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 600 AM EDT SUN JUN 25 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN PENNSYLVANIA, DELAWARE, THE NORTHERN MARYLAND EASTERN SHORE AND NEW JERSEY, EXCLUDING THE FIVE NORTHEAST COUNTIES. .DAY ONE...TODAY AND TONIGHT A FLASH FLOOD WATCH REMAINS IN EFFECT FOR TODAY. THERE IS A MODERATE RISK OF RIP CURRENTS ALONG THE NEW JERSEY COAST TODAY. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY VERY HUMID AND UNSTABLE AIR WILL REMAIN OVER THE REGION THROUGH THE NEW WEEK WITH THE POTENTIAL FOR SHOWERS AND THUNDERSTORMS EACH DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BECOME NECESSARY.
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
632 AM EDT SUN JUN 25 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0410 PM FLASH FLOOD HORSHAM 40.18N 75.14W
06/24/2006 MONTGOMERY PA NWS EMPLOYEE
STREET FLOODING AND SMALL STREAM OUT OF ITS BANKS.
0415 PM FLASH FLOOD 5 SE COATESVILLE 39.93N 75.75W
06/24/2006 CHESTER PA CO-OP OBSERVER
ROADS CLOSED WITH ONGOING RESCUES. 5 INCHES OF RAIN IN 1
HOUR 40 MINUTES.
0430 PM LIGHTNING CLINTON 40.64N 74.91W
06/24/2006 HUNTERDON NJ EMERGENCY MNGR
*** 1 FATAL *** MAN KILLED BY LIGHTNING AT ROUND VALLEY
RECREATION AREA.
0621 PM FLASH FLOOD 3 N PITMAN 39.78N 75.13W
06/24/2006 GLOUCESTER NJ TRAINED SPOTTER
ROAD FLOODING IN SEWELL.
0700 PM FLASH FLOOD 4 W BELMAR 40.18N 74.10W
06/24/2006 MONMOUTH NJ EMERGENCY MNGR
FLOODING AT JUNCTION OF STATE HIGHWAYS 34 AND 138.
0105 AM FLASH FLOOD SUDLERSVILLE 39.19N 75.86W
06/25/2006 QUEEN ANNES MD EMERGENCY MNGR
STATE HIGHWAY 300 FLOODED BETWEEN SUDLERSVILLE AND THE
DELAWARE STATE LINE.
0300 AM FLASH FLOOD EASTON 38.77N 76.07W
06/25/2006 TALBOT MD EMERGENCY MNGR
ROADWAY FLOODING IN EASTON AND TRAPPE.
&&
IOVINOThe Dover AFB radar (KDOX), 34 km away, was scanning. The volume nearest the first event began at 11:00 UTC.
1 flash flood. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2006Every state in 2006This day in weather historyWarnings in Maryland, June 2006
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: 5518394.