Winter Weather in Pennsylvania, December 30 to 31, 2007

Name: Winter Weather in Pennsylvania, December 30 to 31, 2007
Start: 2007-12-30T15:00
End: 2007-12-31T06:00
Location: Pennsylvania

December 30 to 31, 2007 · NWS PHI · 5 events in 5 counties and zones

A low pressure system brought mixed precipitation across Berks County, the Lehigh Valley and the Poconos. The combination of snow, sleet and freezing rain fell and accumulations averaged one to four inches with the highest amounts in the Poconos.

Where it happened

Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. 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: None recorded
Crop damage: None recorded
Events: 5

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 PHI wrote it up.

Precipitation started as rain in Berks County and the Lehigh Valley and as snow in the Poconos during the afternoon on the 30th. As warmer air moved in aloft, the snow changed to sleet and then freezing rain in the Poconos during the evening of the 30th. As the low pressure pulled away, precipitation changed back to snow in the Poconos late that evening and then later that night in the Lehigh Valley and Berks County. The snow ended by 6 a.m. EST on the 31st. Most of the traffic related accidents occurred in the Poconos, as the plateau region reported the most. There were two serious crashes in the area of Interstate 80 and Interstate 380 in Monroe County.

Specific accumulations included 4.0 inches in Albrightsville (Carbon County) and Pocono Summit (Monroe County), 3.7 inches in Saylorsburg (Monroe County), 2.0 inches in Jim Thorpe (Carbon County), 1.6 inches in New Tripoli (Lehigh County), 0.7 inches at the Lehigh Valley International Airport and 0.4 inches in Hamburg (Berks County).

The precipitation was caused by a low pressure system that formed over the southeastern states early on December 30th. It moved northeast and at 7 p.m. EST on the 30th it was just east of Elizabeth City, North Carolina. The low moved northeast and at 1 a.m. EST on the 31st, it was just east of Delaware. It accelerated eastnortheastward and by 7 a.m. EST on the 31st was already about 125 miles southeast of Cape Cod, Massachusetts. The fast movement prevented precipitation from becoming heavy.

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 Philadelphia/Mount Holly wrote its last area forecast discussion before the first event at Dec 30, 12:39 PM EST, 2 hours 21 minutes earlier.

Area forecast discussion, Dec 30, 12:39 PM EST, 2 hours 21 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1239 PM EST SUN DEC 30 2007

.SYNOPSIS...
LOW PRESSURE, DEVELOPING OVER THE SOUTHEASTERN STATES AROUND
MIDDAY, WILL MOVE NORTHEAST AND BRING A MIXTURE OF PRECIPITATION
INTO THE REGION LATE THIS AFTERNOON AND INTO THE OVERNIGHT HOURS.
THE LOW WILL QUICKLY MOVE TO THE GULF OF MAINE TOMORROW MORNING AS
HIGH PRESSURE BEGINS TO BUILD IN ACROSS THE AREA. ANOTHER LOW WILL
APPROACH FROM THE GREAT LAKES ON NEW YEARS DAY AND ALSO MOVE TO
THE GULF OF MAINE ON TUESDAY NIGHT.

&&

.NEAR TERM /THROUGH TONIGHT/...
QUICK MOVING 24 HOUR STORM WILL BRING A CLOSE TO 2007 ON A WET
NOTE FOR MANY AND A SNOWY NOTE FOR SOME WITHIN OUR COUNTY WARNING
AREA.

THE SOUNDINGS ARE CONTINUING TO WARM SLOWLY. WITH THAT SAID, IT
APPEARS THAT MOSTLY SNOW WILL FALL IN THE FAR NORTHERN AREAS SUCH
AS THE POCONOS AND NORTHWEST NJ. THE DIFFERENCE NOW IS, SOME OF
THE SOUNDINGS ARE SHOWING A POSSIBLE MIX WITH SLEET. THE SOUNDINGS
HAVE OBVIOUSLY WARMED A BIT AS WELL FURTHER TO THE SOUTH AND EAST.

QPF AMOUNTS ARE LIGHT UP THROUGH 00Z. THE MAIN ACTION WILL OCCUR
THIS EVENING THROUGH ABOUT SUNRISE TOMORROW, OR SHORTLY BEFORE.
WITH THE 00Z GFS/ECMWF/CANADIAN ALL SHOWING BETWEEN .50 AND.60,
THE ADVISORIES WERE RETAINED NORTH AND WEST OF PHILLY. WAS ABLE TO
SEE THE THE 12Z WRF FOR THE MORNING UPDATE. IT ALSO HAD ABOUT .60
RATHER THAN THE .80 TO .90 THE 06Z RUN HAD. BASED ON THE
00Z/06Z SOUNDINGS, IT APPEARS RATIOS ACROSS THE POCONOS WONT
EXCEED 10/1. ACROSS THE LEHIGH VALLEY, BERKS COUNTY, AND WARREN
AND MORRIS COUNTIES IN NJ, IT APPEARS THE FARTHER NORTH AND WEST
YOU GO, THE BETTER CHANCE YOU WILL ENCOUNTER ADVISORY CRITERIA
ACCUMULATIONS. ACROSS THE DELAWARE VALLEY, IT LOOKS PRETTY MUCH
ALL LIQUID. I SUPPOSE SOMETHING OTHER THAN LIQUID COULD FALL
TOWARD THE END OF THE EVENT IF THE COLDER AIR CAN GET IN.

TEMPERATURES FOR TODAY WERE LOWERED BY ABOUT A CATEGORY. OVERNIGHT
LOWS WILL DROP INTO THE 20S AND 30S. SOME ADJUSTMENTS (UPWARD)
NEEDED TO BE MADE ACROSS SOUTHERN NJ.

THERE IS A CONCERN FOR HEAVY RAIN CAUSING STREET FLOODING FOR NJS
OCEAN/ATLANTIC AND CAPE MAY COUNTIES AND DELAWARES SUSSEX COUNTY
DURING THE NIGHT. ALTHOUGH THE HIGH TIDE IS NOT A FLOOD PRODUCING
TIDE, IT WILL BE AN INCOMING TIDE AT THE TIME OF THE HEAVIEST
RAIN.

&&

.SHORT TERM /MONDAY THROUGH MONDAY NIGHT/...
THE FAST MOVING STORM EXITS TO THE NORTHEAST WITH TEMPERATURES
FALLING TO -5C AT 80H. HIGHEST QPF AMOUNTS ARE OVER EXTREME
NORTHERN NEW JERSEY. SOME LIGHT SNOW MAY TRICKLE PAST 12Z WITH
LITTLE IF ANY CONSEQUENCES. SECONDARY LOW OVER THE GREAT LAKES
DIGS SOUTHEAST INTO CENTRAL NEW YORK STATE BY NEW YEARS DAY WITH
SOME LIGHT PRECIPITATION IN THE FORM OF SNOW REALLY PREVENTS THE
COASTAL LOW FROM WRAPPING UP OVER US SO THE COLDEST OF THE AIR IS
DELAYED UNTIL THIS SECOND LOW MOVES ACROSS THE NORTH INTO THE GULF
OF MAINE ON TUESDAY. SOME COLD AIR CLOUDS AND PRECIPITATION IN THE
FORM OF RAIN AND SNOW SHOWERS WILL BE GREETING REVELERS FOR THE
FIRST DAY OF 2008. SHOULDNT BE TOO BAD TRAVELING IN THIS AREA BUT
COLD TEMPERATURES WILL MAKE THE SNOWY AREAS QUITE SLIPPERY
OVERNIGHT MONDAY NIGHT INTO TUESDAY. LOWS WILL BE DOWN INTO THE
20S WHERE THE SNOW HAS FALLEN AND BE AT OR ABOVE FREEZING
ELSEWHERE.

BLUSTERY SOUTHERLY WINDS WILL SWITCH TO THE WEST AND NORTHWEST NEW
YEARS AFTERNOON. TEMPERATURES IN THE 40S MOST AREAS EXCEPT IN THE
LOWER 30S FAR NORTHERN ZONES. NOT BAD FOR A JANUARY 1ST.

&&

.LONG TERM /TUESDAY THROUGH SATURDAY/...
THE COLDEST AIR BEHIND THE DEPARTING SYSTEM EARLY IN THE WEEK
COMES POURING IN FOR WEDNESDAY AND WE REMAIN IN THE 30S MOST AREAS
AND ONLY IN THE LOWER 20S FAR NORTH. HIGH PRESSURE WILL BUILD EAST
FROM THE PLAINS AS THE DEEP TROUGH EXITS THE EAST COAST LATE
WEDNESDAY. MASSIVE RIDGE BUILDING OVER THE ROCKY MOUNTAINS LATE
WEDNESDAY BEGINS A SLOW PUSH TO TH EAST AS ANOTHER PACIFIC STORM
TAKES AIM AT THE WEST COAST. THE RIDGE DE AMPLIFIES ON FRIDAY WITH
A ZONAL FLOW DEVELOPING AND WARMING THE TEMPERATURES UP BY ABOUT
10 DEGREES FOR HIGHS APPROACHING THE END OF THE WEEK INTO THE
WEEKEND. BLOCKING SURFACE HIGH KEEPS THE NEXT SYSTEM MOVING NORTH
ACROSS THE GREAT LAKES AND LARGE SCALE PRECIPITATION POOLING OVER
THE GULF FROM MOVING NORTH. MEANWHILE...WESTERN ELEMENTS HAVE
REACHED THE ROCKIES. WE REMAIN PRETTY MUCH FREE OF ANY
PRECIPITATION THROUGH SATURDAY, BUT THAT WILL SUDDENLY CHANGE AS
WE APPROACH THE END OF NEXT WEEK.

AS MENTIONED ABOVE...TEMPERATURES ABOVE THE CLIMO NORMAL FOR ALL
STATIONS BY ABOUT 10 DEGREES BUT DAYTIME AND NIGHT.

&&

.AVIATION /17Z SUNDAY THROUGH THURSDAY/...
VFR CONDITIONS WILL PREVAIL FOR THE FIRST PART OF THE AFTERNOON,
WITH CONDITIONS WORSENING DURING THE LATTER PORTION OF THE DAY.  AN
AREA OF LOW PRESSURE WILL MOVE TO THE SOUTH AND THEN TRACK NEWD
TOWARD NEW ENG.  THIS LOW WILL BRING RAIN TO THE ENTIRE AREA
STARTING LATE THIS AFTERNOON AND THEN BRING SOME WINTRY PRECIP,
MAINLY TO THE NORTHERN AND WESTERN SITES OVERNIGHT.  MVFR/IFR AND
LIFR CONDS ARE POSSIBLE WITH THE RAIN, ESPECIALLY DURING THE HEAVIER
PERIODS AND CERTAINLY DURING ANY FREEZING OR FROZEN PRECIP.

CURRENT THINKING IS PRECIP WILL BE MOSTLY, IF NOT ALL LIQUID, FROM
THE I-95 CORRIDOR S AND E, BUT CAN NOT RULE OUT SOME SNOW OR SLEET
MIXING IN OVERNIGHT AROUND THE PHL METRO.  CONDS WILL THEN IMPROVE
LATER IN THE DAY ON MONDAY.

BEYOND THE FORECAST PERIOD, MORE PRECIPITATION, IN RESPONSE TO A
CLIPPER SYSTEM AND STRONG COLD FRONT, IS EXPECTED ON TUESDAY.

&&

.MARINE...
LOW PRESSURE DEVELOPING OVER THE SOUTHERN PLAINS WILL MOVE TOWARD
THE MID-ATLANTIC THIS AFTERNOON. THIS LOW WILL THEN MOVE NORTH
AND EASTWARD TOWARD CAPE COD TONIGHT INTO MONDAY. AS IT TRACKS
EAST OF THE REGION, WINDS AND SEAS ARE FORECAST TO INCREASE ONCE
AGAIN. SCAS, BEGINNING THIS AFTERNOON, REMAIN POSTED THROUGH
TOMORROW FOR THE OCEAN AND LOWER BAY. A SCA HAS BEEN ISSUED FOR
THE UPPER DELAWARE BAY. WIND SPEEDS WERE BOOSTED TOMORROW AS THE
LOW WINDS UP TO OUR NORTH AND EAST AND AS HIGH PRESSURE BUILDS IN.

SEAS COULD DECREASE SOME TOMORROW NIGHT BEFORE A STRONG COLD FRONT
MOVES THROUGH AREA WATERS ON TUESDAY. THE PRESSURE GRADIENT
BETWEEN THE LOW OFF NEW ENGLAND AND THE BUILDING HIGH WILL BRING
A STRONG NWLY FLOW INTO THE REGION AND INCREASE SEAS ONCE AGAIN.
ADDITIONAL HEADLINES WILL BE NEEDED AT THAT TIME.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...SNOW ADVISORY FROM 6 PM THIS EVENING TO 8 AM EST MONDAY FOR
     PAZ054-055.
     WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 AM EST
     MONDAY FOR PAZ060>062.
NJ...SNOW ADVISORY FROM 6 PM THIS EVENING TO 8 AM EST MONDAY FOR
     NJZ001.
     WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 AM EST
     MONDAY FOR NJZ007-008.
DE...NONE.
MD...NONE.
MARINE...SMALL CRAFT ADVISORY FROM 4 PM THIS AFTERNOON TO 6 PM EST
     MONDAY FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY FROM 7 AM TO 6 PM EST MONDAY FOR ANZ430.

&&

SYNOPSIS...KRUZDLO/EBERWINE
NEAR TERM...KRUZDLO/EBERWINE
SHORT TERM...EBERWINE
LONG TERM...EBERWINE
AVIATION...LN
MARINE...KRUZDLO/LN

Hazardous weather outlook, Dec 30, 11:29 AM EST, 3 hours 31 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1129 AM EST SUN DEC 30 2007

NJZ001-PAZ054-055-311630-
SUSSEX-CARBON-MONROE-
1129 AM EST SUN DEC 30 2007

...SNOW ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 8 AM EST
MONDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN NEW JERSEY AND
NORTHEAST PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SNOW ADVISORY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SNOW ADVISORY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NJZ007-008-PAZ060>062-311630-
WARREN-MORRIS-BERKS-LEHIGH-NORTHAMPTON-
1129 AM EST SUN DEC 30 2007

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM
EST MONDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN NEW JERSEY AND EAST
CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   WINTER WEATHER ADVISORY.

.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.

NJZ009-010-012-015-PAZ067>069-311630-
HUNTERDON-SOMERSET-MIDDLESEX-MERCER-CHESTER-MONTGOMERY-BUCKS-
1129 AM EST SUN DEC 30 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW JERSEY...NORTHERN
NEW JERSEY AND SOUTHEAST PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND 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.

DEZ001-002-MDZ008-012-015-019-020-NJZ013-014-016>019-021-027-PAZ070-
071-311630-
NEW CASTLE-KENT DE-CECIL-KENT MD-QUEEN ANNES-TALBOT-CAROLINE-
WESTERN MONMOUTH-EASTERN MONMOUTH-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-CUMBERLAND-SOUTHEASTERN BURLINGTON-DELAWARE-
PHILADELPHIA-
1129 AM EST SUN DEC 30 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL DELAWARE...NORTHERN
DELAWARE...EASTERN MARYLAND...NORTHEAST MARYLAND...CENTRAL NEW
JERSEY...SOUTHERN NEW JERSEY AND SOUTHEAST PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND 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.

ANZ431-450>455-311630-
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-
1129 AM EST SUN DEC 30 2007

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 6 PM
EST MONDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS AND
DELAWARE BAY WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SMALL CRAFT ADVISORY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SMALL CRAFT ADVISORY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

DEZ003-004-NJZ020-022>026-311630-
INLAND SUSSEX-DELAWARE BEACHES-OCEAN-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
1129 AM EST SUN DEC 30 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN DELAWARE AND
SOUTHERN NEW JERSEY.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THE COMBINATION OF AN INCOMING TIDE AND THE POSSIBILITY OF VERY
HEAVY RAIN AT THAT TIME MAY CAUSE STREET FLOODING OF SEVERAL FEET
ESPECIALLY ON THE BARRIER ISLANDS. THE HIGH TIDE IN QUESTION IS
BETWEEN MIDNIGHT AND TWO AM MONDAY.

.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.

ANZ430-311630-
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
1129 AM EST SUN DEC 30 2007

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM TO 6 PM EST MONDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR DELAWARE BAY WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SMALL CRAFT ADVISORY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

KRUZDLO

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

5 winter weather. Local standard time, as filed.

Winter Weather, Berks

When: December 30, 3:00 PM EST to December 31, 5:00 AM EST
Where: Berks forecast zone
Reported by: Trained Spotter
Coordinates: 40.416, -75.926 (the zone’s center; the record gives no point)

Winter Weather, Lehigh

When: December 30, 3:00 PM EST to December 31, 5:00 AM EST
Where: Lehigh forecast zone
Reported by: Trained Spotter
Coordinates: 40.613, -75.592 (the zone’s center; the record gives no point)

Winter Weather, Northampton

When: December 30, 3:00 PM EST to December 31, 5:00 AM EST
Where: Northampton forecast zone
Reported by: Trained Spotter
Coordinates: 40.754, -75.307 (the zone’s center; the record gives no point)

Winter Weather, Monroe

When: December 30, 5:00 PM EST to December 31, 6:00 AM EST
Where: Monroe forecast zone
Reported by: Trained Spotter
Coordinates: 41.058, -75.339 (the zone’s center; the record gives no point)

Winter Weather, Carbon

When: December 30, 5:00 PM EST to December 31, 6:00 AM EST
Where: Carbon forecast zone
Reported by: Trained Spotter
Coordinates: 40.918, -75.709 (the zone’s center; the record gives no point)

What these are

Winter Weather: Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.

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

The same day elsewhere

Every storm in Pennsylvania in 2007 Every state in 2007 This day in weather history Warnings in Pennsylvania, December 2007

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: 64563, 64565, 64566, 64567, 64568.