Delaware, 2008

Winter Weather in Delaware, January 22 to 23, 2008

January 22 to 23, 2008 · NWS PHI · 2 events in 2 counties and zones

Skies cleared quickly after light rain fell during the afternoon and early evening on the 22nd. Because winds were also light, black ice formed on area roadways overnight.

Where it happened

Every event with a place to put it; 2 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

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The toll

Deaths
0
Injuries
17
Property damage
None recorded
Crop damage
None recorded
Events
2

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.

Skies cleared quickly after light rain fell during the afternoon and early evening on the 22nd. Because winds were also light, black ice formed on area roadways overnight. Accidents were reported in Sussex and New Castle Counties. In Sussex County, between 6 a.m. EST and 9 a.m. EST on the 23rd, fifty-three accidents occurred. There were fifteen non life-threatening injuries. So many accidents occurred that the Delaware State Police Communications Storm Plan was implemented. Its normally intended to be used during major storms, national disasters and catastrophic incidents. In New Castle County, two people were taken to Christina Hosipital after separate severe accidents in the Middletown area. A few roads in the county were closed because of the slick roadways.

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 Jan 22, 4:04 PM EST, 4 hours 56 minutes earlier.

Area forecast discussion, Jan 22, 4:04 PM EST, 4 hours 56 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
404 PM EST TUE JAN 22 2008

.SYNOPSIS...
A COLD FRONT WILL WORK ITS WAY THROUGH OUR AREA TONIGHT. HIGH
PRESSURE WILL MOVE IN BEHIND THE FRONTAL PASSAGE. A MILD COLD
FRONT WILL PASS QUICKLY WEDNESDAY NIGHT INTO THURSDAY WITH LITTLE
SIGNIFICANCE OTHER THAN AN INCREASE IN WINDS. THOSE WINDS WILL BE
DUE IN PART TO A DEVELOPING LOW PRESSURE SYSTEM WELL OFF THE
COAST. HIGH PRESSURE WILL FOLLOW AND DOMINATE INTO THE WEEKEND.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
WEAK SHORT WAVE AND ASSOCIATED COLD FRONT MAKING PROGRESS TOWARD THE
REGION THIS AFTERNOON. WEVE HAD A COUPLE REPORTS OF SLEET, BUT MOST
PRECIP HAS BEEN EITHER RAIN OR SNOW AND ALL OF IT HAS BEEN LIGHT.
GFS SHOWS SOME LOWER LEVEL FRONTOGENESIS FOR A TIME EARLY THIS
EVENING AS THE FRONT APPROACHES, BUT RADAR SEEMS TO BE INDICATING
CHANCES OF PRECIP ARE DWINDLING OVER THE NORTHWESTERN PART OF THE
FORECAST AREA. WEVE BACKED OFF SOME, BUT NOT COMPLETELY, ON THE
EVENING POPS ALL PLACES EXCEPT FAR SOUTHEAST. WE DONT THINK ENOUGH
PRECIP HAS FALLEN TO WORRY ABOUT ANYTHING OTHER THAN VERY SPOTTY
FREEZING ON ROAD SURFACES OVERNIGHT. GIVEN THE PROGGED H925
TEMPERATURES AND THE STAT GUIDANCE, WEVE ALSO COME UP SOME ON
OVERNIGHT MINS.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH THURSDAY/...
WEDNESDAY SHOULD FEATURE A GOOD DEAL OF SUNSHINE AS WEAK, TRANSIENT
HIGH PRESSURE MOVES INTO THE AREA. H925 TEMPERATURES AND STAT
GUIDANCE AGAIN INDICATE WE SHOULD BUMP UP THE MAX TEMPERATURES A
BIT. THE WINDS LOOK TO BE BENIGN.

THE NEXT APPROACHING MID LEVEL SHORT WAVE LOOKS TO INDUCE A COLD
FRONT THAT SHOULD APPROACH WEDNESDAY NIGHT AND PASS ACROSS THE
REGION ON THURSDAY. THE SUPPORT FOR THIS FRONT, HOWEVER, LOOKS TO
BE TRANSFERRED OFF THE COAST. THE CANADIAN SEF, THE ECMWF AND THE
GFS ALL DEVELOP A COASTAL LOW ON THURSDAY. BY 00Z FRIDAY, IT HAS A
CENTRAL PRESSURE SOMEWHERE BETWEEN 1002 AND 1006 MB, AND IT IS
LOCATED SOMEWHERE BETWEEN 400 AND 650 MILES EAST OF THE DELMARVA.
THE TRANSFERENCE OF ENERGY SEEMS TO BE RESULTING IN A RATHER WEAK
FROPA IN TERMS OF FORCING AND PRECIP. NEITHER THE ECMWF NOR THE GFS
PAINTS ANYTHING OTHER THAN VERY LIGHT PRECIPITATION OVER OUR AREA
WITH THIS FEATURE WEDNESDAY NIGHT OR THURSDAY, AND WE HAVE BACKED
OFF ON THE POPS AS A RESULT. REGARDING THE WINDS AS THE SYSTEM OFF
THE COAST WINDS UP, THEY SHOULD PICK UP, AND WE COMPROMISED
BETWEEN THE GFS AND THE ECMWF.

GUIDANCE TEMPERATURES GENERALLY WERE ACCEPTED WEDNESDAY NIGHT AND
THURSDAY, WITH A NOD TOWARD THE MAV WEDNESDAY NIGHT AND A COMPROMISE
BETWEEN WHAT THE GFS H925 TEMPERATURES INDICATED AND WHAT THE MAV
CARRIED ON THURSDAY.

&&

.LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/...
A LONG WAVE TROUGH SHOULD BE IN PLACE OVER THE EASTERN PART OF THE
COUNTRY FOR THURSDAY NIGHT.  THE TROUGH WILL WORK ITS WAY TO THE
EAST, ALLOWING A RIDGE TO BUILD IN FROM THE WEST.  THE RIDGE IS
EXPECTED TO FLATTEN DURING THE WEEKEND, AND WELL END UP IN A MORE
ZONAL TYPE PATTERN FOR THE EARLY PART OF NEXT WEEK.

ON THURSDAY EVENING, A LARGE AREA OF HIGH PRESSURE IS EXPECTED TO BE
CENTERED OVER ILLINOIS.  THE SURFACE HIGH SHOULD BUILD TO THE EAST
AND IT IS FORECAST TO PASS OFF THE MIDDLE ATLANTIC COAST ON FRIDAY
EVENING.  IT APPEARS AS THOUGH A CLIPPER TYPE SYSTEM MAY DROP DOWN
FROM THE NORTHWEST AROUND SATURDAY NIGHT OR SUNDAY.  FOR NOW, WE
HAVE NOT MENTIONED ANY PRECIP WITH THE SYSTEM EXCEPT FOR SOME HIDDEN
SLIGHT CHANCE POPS.

A WARM FRONT IS ANTICIPATED TO APPROACH FROM THE SOUTHWEST AND IT
SHOULD PASS THROUGH OUR REGION ON MONDAY.  WEVE INCLUDED CHANCE
POPS FOR THAT PERIOD, WITH MOST LOCATIONS EXPECTED TO GO FROM FROZEN
TO LIQUID PRECIP.

LOW PRESSURE IS FORECAST TO MOVE INTO THE GREAT LAKES REGION FROM
THE WEST ON TUESDAY.

&&

.AVIATION /21Z TUESDAY THROUGH SUNDAY/...
RADAR SHOWS A BAND OF LIGHT PRECIP AFFECTING ALL OUR TAF SITES
EXCEPT ABE AND RDG...WHERE THE PRECIP HAS ALREADY CLEARED OUT. THE
PRECIP IS VERY LIGHT AND IS NOT CAUSING ANY LIMITS TO VSBY. CIGS
LOWERED TO MVFR IN MANY AREAS THIS MORNING BUT HAVE SINCE RECOVERED
...EXCEPT FOR MIV AND ACY. THE 18Z TAFS HAVE ALREADY BEEN AMENDED TO
BE MORE OPTOMISTIC...WITH RAIN ENDING BY 00Z EXCEPT FOR MIV AND ACY.

ALTHO PRECIP SHOULD END BY THIS EVENING...THE ACTUAL WEAK COLD FRONT
PASSAGE AND WIND SHIFT TO W WILL BE OVERNIGHT. HENCE CLOUDS AND
MOISTURE WILL BE SLOW TO CLEAR AND MVFR CONDS MAY CONT UP CLOSE TO
MIDNIGHT. MIV AND ACY WILL BE THE SLOWEST TO IMPROVE. BY EARLY
MORNING ON WED CONDS SHOULD IMPROVE TO VFR AND REMAIN SO THRU THE
DAY.

BEYOND THE TAF PERIOD...
A STRONGER COLD FRONT PASSAGE ON THU WILL BE ACCOMPANIED BY GUSTY
WINDS AND POSSIBLY SOME LIGHT SNOW. COLD HIGH PRESSURE WILL DOMINATE
AFTER THE FRONTAL PASSAGE.

&&

.MARINE...
SOME LIGHT RAIN OR SHOWERS WILL BE MOVING OVER THE MARINE AREA THIS
AFTERNOON AND EVENING...BUT PRECIP IS LIGHT AND SHOULD NOT CAUSE ANY
SGFNT VSBY PROBLEMS. WINDS OVER THE MARINE AREA ARE REMAINING MOSTLY
IN THE 10 TO 15 KT RANGE WITH A FEW HIGHER GUSTS. THE KDIX RADAR IS
ESTIMATING WINDS OF 50 KT AT 2 K-FT BUT MOST OF THIS IS NOT MIXING
DOWN TO THE COLD WATER SURFACE. ALTHO A FEW GUSTS COULD REACH 25 KT
THIS EVENING...IT APPEARS THAT WINDS AND SEAS WILL GENLY STAY BELOW
SCA CRITERIA WITH A RELATIVELY WEAK COLD FRONT PASSAGE...SO THE
CURRENT SCA IS BEING LOWERED WITH THE AFTN FCST.

THE NEXT SGFNT EVENT FOR THE MARINE FCST IS A STRONGER COLD FRONTAL
PASSAGE ON THURSDAY. LOW PRES IS FCST TO DEEPEN OFF THE MID-ATLANTIC
COAST THU NIGHT AND THIS IN COMBO WITH STG HIGH PRESSURE TO THE WEST
WILL PRODUCE STRONG NW FLOW. STRONG SCA OR POSSIBLY GALE CONDS ARE
EXPECTED THU NIGHT INTO FRI. WINDS AND SEAS SHOULD SUBSIDE FRI NIGHT
AS THE HIGH MOVES OVERHEAD AND THEN OFF SHORE FOR SAT.  BEYOND
THAT...JUST RATHER WEAK AND FAST MOVING WEATHER SYSTEMS WILL AFFECT
THE AREA WITH NO SFGNT STORMS IN SIGHT AT THIS TIME.

&&

.TIDES/COASTAL FLOODING...
TIDES CONTINUE TO RUN 0.5 TO 1.0 FT BELOW NORMAL/ASTRONOMICAL. THE
ASTRO LOW TIDES ARE SMWHT BELOW MLLW...SO WITH CONTINUING OFFSHORE
WINDS THE RESULTING ACTUAL LOW TIDES ARE LIKELY TO BE 1.0 TO 1.5 FT
BELOW MLLW. ALTHO NOT AT BLOW-OUT TIDE CRITERION...1.8 FT BELOW
MLLW...THERE COULD BE A FEW NAVIGATION ISSUES AROUND INLETS AND
SHALLOW SPOTS ETC, SO WE WILL ISSUE A MARINE WEATHER STATEMENT TO
THAT EFFECT.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...NONE.

&&

SYNOPSIS...RM/DELISI
NEAR TERM...DELISI
SHORT TERM...DELISI
LONG TERM...IOVINO
AVIATION...AMC
MARINE...AMC
TIDES/COASTAL FLOODING...AMC
Hazardous weather outlook, Jan 22, 3:55 PM EST, 5 hours 5 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
355 PM EST TUE JAN 22 2008

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-055-
060>062-067>071-231100-
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-
355 PM EST TUE JAN 22 2008

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ430-431-450>455-231100-
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-
355 PM EST TUE JAN 22 2008

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

The radar

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

Open the radar archive at this moment

Event by event

2 winter weather. Local standard time, as filed.

Winter Weather, Inland Sussex

When
January 22, 9:00 PM EST to January 23, 9:00 AM EST
Where
Inland Sussex forecast zone
Injuries
0 direct, 15 indirect
Reported by
Newspaper
Coordinates
38.683, -75.339 (the zone’s center; the record gives no point)

Winter Weather, New Castle

When
January 22, 9:00 PM EST to January 23, 6:00 AM EST
Where
New Castle forecast zone
Injuries
0 direct, 2 indirect
Reported by
Newspaper
Coordinates
39.578, -75.639 (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

More

Every storm in Delaware in 2008Every state in 2008This day in weather historyWarnings in Delaware, January 2008

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: 70850, 71927.