A slowly southward sagging cold front triggered scattered strong thunderstorms as well as an isolated severe thunderstorms across southern parts of the Eastern Shore during the evening of the 8th.
Every event with a place to put it. 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.
A slowly southward sagging cold front triggered scattered strong thunderstorms as well as an isolated severe thunderstorms across southern parts of the Eastern Shore during the evening of the 8th.
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 Jul 8, 8:23 PM EST, 1 hour 2 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 923 PM EDT SUN JUL 8 2012 .SYNOPSIS... A COLD FRONT WILL CONTINUE TO MOVE SLOWLY SOUTH TONIGHT...BECOMING NEARLY STATIONARY JUST SOUTH OF THE REGION ON MONDAY. SEVERAL WEAK SYSTEMS ARE EXPECTED TO MOVE ALONG THIS BOUNDARY THROUGH A GOOD PART OF THE WEEK BEFORE DISSIPATING. MEANWHILE, HIGH PRESSURE WILL BUILD ACROSS THE UPPER GREAT LAKES AND NEW ENGLAND INTO NEXT WEEKEND. && .NEAR TERM /UNTIL 6 AM MONDAY MORNING/... THE STALLED FRONT LINGERS OVER THE SOUTHERN PART OF THE AREA. SCATTERED CONVECTION SEEMS TO HAVE DEFIED THE USUAL 'TIME OF DAY' RULE AND DEVELOPED AFTER SUNSET ACROSS THE ERN SHORE AND DELAWARE. A RECENT WARNING WAS ISSUED FOR POSSIBLE LARGE HAIL. THIS ACTIVITY SHOULD SLOWLY DECREASE BY OR SHORTLY AFTER MIDNIGHT. SKIES WILL REMAIN CLOUDY ACROSS THE SOUTH...AND BECOME PARTLY CLOUDY ACROSS THE CENTRAL AREAS. LOW TEMPERATURES TONIGHT WILL RANGE FROM THE LOW 70S ACROSS THE DELMARVA TO THE UPPER 50S AND LOW 60 ACROSS THE FAR NORTH. && .SHORT TERM /6 AM MONDAY MORNING THROUGH TUESDAY/... THE BOUNDARY TO OUR SOUTH MOVES LITTLE THROUGH MONDAY AS A WAVE OF LOW PRESSURE DEVELOPS ALONG IT. THE WAVE WILL TRACK TO THE EAST AND KEEP THE WEATHER A BIT UNSETTLED IN OUR REGION, ESPECIALLY ACROSS OUR SOUTHERN AREAS. NORTHERN AREAS WILL REMAIN DRY THROUGH MONDAY. WITH COOLER AIR PUSHING DOWN FROM THE NORTH WE SHOULD HAVE A MUCH MORE COMFORTABLE DAY ACROSS OUR AREA. HIGH TEMPERATURES WILL RISE INTO THE 80S BUT WHAT WILL REALLY MAKE IT FEEL NICER WILL BE THE FACT THAT DEWPOINTS WILL BE ON AVERAGE 10 DEGREES COOLER. EVEN THOUGH IT WILL BE CLOUDY MOST OF THE DAY, THE WEEK IS GETTING OFF TO A MUCH BETTER START. && .LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/... HIGH PRESSURE OVER THE WESTERN STATES IN THE MID-LEVELS OF THE ATMOSPHERE WILL KEEP THE JET STREAM OVER THE EASTERN U.S. JUST TO OUR SOUTH...AT LEAST THROUGH MID-WEEK. PRECIPITATION ASSOCIATED WITH ANY WAVES OF LOW PRESSURE THAT DEVELOP ALONG THIS FRONT COULD SPILL NORTH OVER THE DELMARVA, BUT THE BULK OF ANY SUCH ACTION IS EXPECTED TO STAY SOUTH. HOWEVER...TOWARD THE END OF THE WEEK...A SQUEEZE PLAY BETWEEN LOW PRESSURE OVER THE MID SECTION OF THE COUNTRY AND A RETROGRADING HIGH PRESSURE SYSTEM OVER THE ATLANTIC COULD PUSH THE BOUNDARY BACK NORTH OVER THE SOUTHERN PORTIONS OF THE CWA. HOW FAR NORTH THIS BOUNDARY MOVES IS YET TO BE SEEN. CONSEQUENTLY...NO DRASTIC CHANGES HAVE BEEN MADE TO THE EXTENDED PORTION OF THE FORECAST WITH THIS PACKAGE. A BLEND OF MAV/MET GUIDANCE WAS USED FOLLOWED BY HPC GUIDANCE. NO RETURN TO EXTREME HEAT IS SEEN THROUGH THE FORECAST PERIOD. && .AVIATION /01Z MONDAY THROUGH FRIDAY/... THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY AND SURROUNDING AREAS. MAINLY VFR CONDITIONS ARE EXPECTED TO CONTINUE THROUGH THE TAF PERIOD. A QUASI-STATIONARY FRONT LIES ACROSS SOUTHERN DELAWARE WITH CONVECTION DEVELOPING TO THE WEST ALONG THE BOUNDARY. THE CONVECTION WILL STAY SOUTH OF THE TAF SITES AND WE HAVE NOT INCLUDED ANY THUNDER IN THE TAFS AT THIS TIME. WINDS ARE DIFFICULT TO PIN DOWN AS THE FLOW AT AND JUST ABOVE THE SURFACE IS RELATIVELY WEAK. THERE APPEARS TO BE MORE OF WESTERLY COMPONENT ALOFT THROUGH THIS EVENING AND FOR THE MOST PART THAT IS TRANSLATING TO WEST NORTHEAST WINDS AT THE SURFACE. A SEA BREEZE ALONG THE COAST HAS EASTERLY WINDS AT KACY. OVERNIGHT THE FLOW ALOFT BECOMES MORE EASTERLY AND WINDS AT THE SURFACE SHOULD FOLLOW SUIT. ALTHOUGH MANY PLACES WILL BE COME LIGHT AND VARIABLE OVERNIGHT WHERE THERE IS WIND IT SHOULD BE OUT OF THE EAST OR NORTHEAST. ON MONDAY THE WINDS SHOULD REMAIN OUT OF THE EAST OR NORTHEAST BEFORE TURNING MORE TO THE SOUTHEAST LATE IN THE DAY. PLENTY OF LOW-LEVEL MOISTURE REMAINS ACROSS OUR SOUTHERN AREAS AND THERE REMAINS THE CHANCE FOR SOME MVFR CONDITIONS TO DEVELOP, MAINLY AT KMIV. CONFIDENCE IS MODERATE THAT ANY FOG WILL DEVELOP BEFORE THE DRIER AIR PUSHES DOWN FROM THE NORTH OVERNIGHT. MOST AREAS WILL ONLY SEE SOME STRATUS AROUND 5000FT THROUGH THE EVENING AND AGAIN ON MONDAY. OUTLOOK... MONDAY NIGHT THROUGH FRIDAY...MAINLY VFR CONDITIONS EXPECTED. HOWEVER...SHOWERS AND THUNDERSTORMS ARE POSSIBLE THAT WOULD PRODUCE LOCAL SUB- VFR CONDITIONS. THEY ALSO COULD GENERATE SOME MORNING FOG. CHANCES OF THIS GENERALLY INCREASES AS ONE MOVES SOUTH ACROSS THE TAF SITES. CONFIDENCE IS AVERAGE. && .MARINE... SUB-ADVISORY CONDITIONS ARE EXPECTED THROUGH MONDAY AS THE QUASI-STATIONARY FRONT REMAINS JUST TO THE SOUTH OF THE AREA. SEAS WILL REMAIN AROUND 1 FOOT ON THE DELAWARE BAY AND 2 TO 3 FEET ON THE OCEAN. WINDS WILL REMAIN OUT OF THE NORTH OR NORTHEAST BEFORE TURNING MORE EASTERLY ON MONDAY. A FEW GUSTS AROUND 20 KNOTS ARE POSSIBLE DURING THE DAY ON MONDAY ON THE OCEAN. LOW PRESSURE DEVELOPS ON THE BOUNDARY SOUTH OF OUR AREA AND TRACKS TO THE EAST. THIS MAY CAUSE SEAS TO RISE CLOSER TO 4 FEET, ESPECIALLY ACROSS OUR SOUTHERN WATERS. OUTLOOK... SUB-ADVISORY CONDITIONS ARE EXPECTED THROUGH THE PERIOD. && .PHI WATCHES/WARNINGS/ADVISORIES... PA...NONE. NJ...NONE. DE...NONE. MD...NONE. MARINE...NONE. && SYNOPSIS...MIKETTA NEAR TERM... SHORT TERM...MEOLA LONG TERM...MIKETTA AVIATION...MEOLA MARINE...MEOLA
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 615 PM EDT SUN JUL 8 2012 DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-055- 060>062-067>071-092215- NEW CASTLE-KENT-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- 615 PM EDT SUN JUL 8 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL DELAWARE...NORTHERN DELAWARE...SOUTHERN DELAWARE...NORTHEAST MARYLAND...CENTRAL NEW JERSEY...NORTHERN NEW JERSEY...NORTHWEST NEW JERSEY...SOUTHERN NEW JERSEY...EAST CENTRAL PENNSYLVANIA...NORTHEAST PENNSYLVANIA AND SOUTHEAST PENNSYLVANIA. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. ANZ430-431-450>455-092215- 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- 615 PM EDT SUN JUL 8 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS AND DELAWARE BAY WATERS. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
733 PM EDT SUN JUL 8 2012
DEZ003-004-MDZ019-090030-
DELAWARE BEACHES DE-INLAND SUSSEX DE-TALBOT MD-
733 PM EDT SUN JUL 8 2012
...STRONG THUNDERSTORMS WILL AFFECT SUSSEX AND TALBOT COUNTIES...
AT 728 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 14 MILES SOUTHEAST
OF EASTON TO 20 MILES SOUTHWEST OF SALISBURY...MOVING SOUTHEAST AT 25
MPH. THE THUNDERSTORMS WILL BE NEAR DELMAR...BETHEL AROUND 815 PM AND
DELMAR AROUND 830 PM.
VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL POOR DRAINAGE AREAS.
WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE STORMS.
LAT...LON 3845 7569 3848 7570 3863 7572 3868 7594
3853 7507 3844 7509
HAYESSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
830 PM EDT SUN JUL 8 2012
DEZ003-004-090130-
DELAWARE BEACHES DE-INLAND SUSSEX DE-
830 PM EDT SUN JUL 8 2012
...A STRONG THUNDERSTORM WILL AFFECT SUSSEX COUNTY...
AT 828 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 18 MILES WEST OF GEORGETOWN...MOVING SOUTHEAST AT
25 MPH. THE THUNDERSTORM WILL BE NEAR LAUREL...BETHEL AROUND 845
PM...SYCAMORE...DELMAR AROUND 900 PM...GUMBORO...DAGSBORO AROUND 915
PM...SELBYVILLE AND FRANKFORD AROUND 930 PM.
WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
LAT...LON 3845 7559 3851 7571 3874 7571 3856 7504
3851 7504 3844 7509
HAYESSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
909 PM EDT SUN JUL 8 2012
DEZ002-MDZ012-015-019-020-090215-
CAROLINE MD-KENT DE-KENT MD-QUEEN ANNE'S MD-TALBOT MD-
909 PM EDT SUN JUL 8 2012
...A CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT CAROLINE...KENT...
QUEEN ANNE'S AND TALBOT COUNTIES...
AT 906 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF STRONG THUNDERSTORMS 10 MILES WEST OF
CENTERVILLE...MOVING EAST AT 20 MPH. THE THUNDERSTORMS WILL BE NEAR
OVERTON...QUEENSTOWN AROUND 915 PM...CENTREVILLE...CENTERVILLE
AROUND 930 PM... CARVILLE...HOPE AROUND 945 PM...OAKLAND...OAKLAND
AROUND 1000 PM...GOLDSBORO AND GREENSBORO AROUND 1015 PM.
WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS.
LAT...LON 3904 7632 3904 7629 3899 7627 3898 7620
3900 7618 3902 7624 3909 7625 3914 7629
3927 7623 3930 7619 3933 7619 3927 7548
3884 7556 3891 7622 3894 7624 3893 7624
3892 7624 3893 7637
HAYESPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
932 PM EDT SUN JUL 08 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0847 PM HAIL MILLSBORO 38.59N 75.29W
07/08/2012 E0.75 INCH SUSSEX DE PUBLIC
&&
EVENT NUMBER PHI1200408
HAYESPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
955 PM EDT SUN JUL 08 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0858 PM TSTM WND DMG LAUREL 38.55N 75.57W
07/08/2012 SUSSEX DE EMERGENCY MNGR
TREES DOWN
&&
EVENT NUMBER PHI1200409
HAYESSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1013 PM EDT SUN JUL 8 2012
DEZ002-003-MDZ012-015-019-020-090315-
CAROLINE MD-INLAND SUSSEX DE-KENT DE-KENT MD-QUEEN ANNE'S MD-
TALBOT MD-
1013 PM EDT SUN JUL 8 2012
...A CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT CAROLINE...
KENT...QUEEN ANNE'S...SUSSEX AND TALBOT COUNTIES...
AT 1011 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF STRONG THUNDERSTORMS 11 MILES SOUTHWEST OF CENTERVILLE...
MOVING EAST AT 20 MPH. THE THUNDERSTORMS WILL BE NEAR WYE
MILLS...SKIPTON AROUND 1030 PM...STARR...QUEEN ANNE AROUND 1045
PM...JUMPTOWN...RIDGELY AROUND 1100 PM AND SANDTOWN AROUND 1115 PM.
WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS.
LAT...LON 3904 7632 3899 7627 3900 7618 3903 7625
3909 7625 3915 7628 3913 7561 3876 7564
3885 7622 3893 7622 3894 7624 3890 7625
3892 7628 3885 7625 3886 7627 3889 7627
3890 7631 3887 7633 3887 7637
HAYESThe Dover AFB radar (KDOX), 42 km away, was scanning. The volume nearest the first event began at 02:23 UTC.
1 thunderstorm wind. Local standard time, as filed.
A severe thunderstorm knocked down a couple of trees near Henderson.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2012Every state in 2012This day in weather historyWarnings in Maryland, July 2012
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: 403172.