Alert archive / Pennsylvania / Areal Flood Warnings in 2015

Areal Flood Warning 1, NWS Philadelphia/Mount Holly

January 18, 20154 counties in New Jersey; 5 counties in Pennsylvania; New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this areal flood warning at Jan 18, 2015, 11:43 AM EST for 4 counties in New Jersey; 5 counties in Pennsylvania; New Castle County, Delaware. It was in force for 10 hr. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jan 18, 2015, 11:43 AM EST (16:43 UTC)
Expired
Jan 18, 2015, 9:36 PM EST
In force
10 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Salem County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 85 km from the middle of the area, began a volume at 16:42 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jan 18, 12:00 PM ESTFREEZING RAIN 0.2Graterford, PA
Jan 18, 3:31 PM ESTHEAVY RAIN 2.05Sewell, NJ
Jan 18, 3:46 PM ESTHEAVY RAIN 2.1Washington Twp, NJ
Jan 18, 4:37 PM ESTHEAVY RAIN 2.28Florence Twp, NJ

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 4.7 hours before the alert went out and 197 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2015-01-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2015-01-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 204 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
829 m above ground
0-6 km bulk shear
81 kt
0-1 km storm-relative helicity
204 m²/s²
0-3 km storm-relative helicity
219 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

393 
WGUS41 KPHI 181643
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1143 AM EST SUN JAN 18 2015

DEC003-NJC005-007-015-033-PAC017-029-045-091-101-182230-
/O.NEW.KPHI.FA.W.0001.150118T1643Z-150118T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMDEN NJ-BUCKS PA-MONTGOMERY PA-PHILADELPHIA PA-DELAWARE PA-
GLOUCESTER NJ-CHESTER PA-NEW CASTLE DE-BURLINGTON NJ-SALEM NJ-
1143 AM EST SUN JAN 18 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS IN...
  NORTHWESTERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
  SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA...
  PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA...
  DELAWARE COUNTY IN SOUTHEAST PENNSYLVANIA...
  NORTHERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
  EASTERN CHESTER COUNTY IN SOUTHEAST PENNSYLVANIA...
  NORTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
  NORTHWESTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  NORTHERN SALEM COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 530 PM EST

* AT 1136 AM EST...HEAVY RAIN WAS FORCING SMALL STREAMS FROM
  NORTHERN DELAWARE INTO SOUTHEAST PENNSYLVANIA TO RISE SHARPLY.
  IT IS EXPECTED THAT STORM TOTAL RAINFALL OF 1 TO 1.75 INCHES BY 3
  PM WILL FORCE SEVERAL SMALL STREAMS IN THE WILMINGTON PHILADELPHIA
  CORRIDOR TO RISE OUT OF THEIR BANKS BETWEEN NOON AND 3 PM. COBBS
  CREEK HAS ALREADY RISEN 3 FEET IN 3 HOURS AND SHOULD SOON EXCEED
  FLOOD STAGE. THE CHRISTINA RIVER AT COOCHS BRIDGE WAS NOW RISING
  RAPIDLY.        

* RAIN WILL DIMINISH AND END DURING MID AND LATE AFTERNOON BUT SMALL
  STREAMS WILL CONTINUE RISING EVEN AS THE RAIN ENDS WITH RESIDUAL
  FLOODING POSSIBLY LINGERING INTO THIS EVENING.   

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON
SMALL CREEKS AND STREAMS...AND PONDING OF WATER IN URBAN AREAS...
HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER POOR DRAINAGE
AREAS AND LOW LYING SPOTS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON
SMALL CREEKS AND STREAMS...AND PONDING OF WATER ON COUNTRY ROADS AND
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

&&

LAT...LON 4044 7517 4004 7463 3971 7504 3954 7554
      3957 7552 3959 7555 3958 7556 3953 7556
      3946 7577 3998 7579

$$
DRAG
5 follow-up statements
421 
WGUS81 KPHI 181839
FLSPHI

FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
139 PM EST SUN JAN 18 2015

DEC003-NJC005-007-015-033-PAC017-029-045-091-101-182230-
/O.CON.KPHI.FA.W.0001.000000T0000Z-150118T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMDEN NJ-BUCKS PA-MONTGOMERY PA-PHILADELPHIA PA-DELAWARE PA-
GLOUCESTER NJ-CHESTER PA-NEW CASTLE DE-BURLINGTON NJ-SALEM NJ-
139 PM EST SUN JAN 18 2015

...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM EST FOR URBAN
AREAS AND SMALL STREAMS IN NORTHERN SALEM...NORTHWESTERN
BURLINGTON...NORTHERN NEW CASTLE...EASTERN CHESTER...NORTHERN
GLOUCESTER...DELAWARE...PHILADELPHIA...SOUTHEASTERN MONTGOMERY...
SOUTHERN BUCKS AND NORTHWESTERN CAMDEN COUNTIES...

AS OF 1 PM...WIDESPREAD RAINFALL OF 1 TO 1.4 INCHES HAS OCCURRED 
WITH RAPID RISES ON SOME SMALL STREAMS.  ISOLATED 2 INCH AMOUNTS MAY 
HAVE OCCURRED IN NORTHERN DELAWARE AND SOUTHEAST PENNSYLVANIA.

DAILY RECORD RAINS HAVE ALREADY OCCURRED AT THE LONG TERM 
CLIMATOLOGICAL LOCATIONS OF BOTH PHILADELPHIA AND WILMINGTON.  

HEAVY RAIN WILL BE QUICKLY ENDING FROM SOUTHWEST TO NORTHEAST 
BETWEEN 2 PM AND 4 PM. WHILE THAT WILL PERMIT POOR DRAINAGE FLOOD 
WATERS TO RECEDE...SEVERAL SMALL STREAMS WILL PROBABLY CONTINUE 
THEIR RISES THROUGH THE AFTERNOON...POSSIBLY EXCEEDING BANKFULL.

THEREFORE THE WARNING WILL CONTINUE UNTIL THE THREAT FOR FLOODING 
ENDS. 

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL CONTINUE. ALL INTERESTED PARTIES SHOULD TAKE 
NECESSARY PRECAUTIONS IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON
SMALL CREEKS AND STREAMS...AND PONDING OF WATER IN URBAN AREAS...
HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER POOR DRAINAGE
AREAS AND LOW LYING SPOTS.

&&

LAT...LON 4044 7517 4004 7463 3971 7504 3954 7554
      3957 7552 3959 7555 3958 7556 3953 7556
      3946 7577 3998 7579

$$

DRAG
189 
WGUS81 KPHI 182016
FLSPHI

FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
316 PM EST SUN JAN 18 2015

DEC003-NJC005-007-015-033-PAC017-029-045-091-101-182230-
/O.CON.KPHI.FA.W.0001.000000T0000Z-150118T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMDEN NJ-BUCKS PA-MONTGOMERY PA-PHILADELPHIA PA-DELAWARE PA-
GLOUCESTER NJ-CHESTER PA-NEW CASTLE DE-BURLINGTON NJ-SALEM NJ-
316 PM EST SUN JAN 18 2015

...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM EST FOR URBAN
AREAS AND SMALL STREAMS IN NORTHERN SALEM...NORTHWESTERN
BURLINGTON...NORTHERN NEW CASTLE...EASTERN CHESTER...NORTHERN
GLOUCESTER...DELAWARE...PHILADELPHIA...SOUTHEASTERN MONTGOMERY...
SOUTHERN BUCKS AND NORTHWESTERN CAMDEN COUNTIES...

AT 308 PM EST FLOODING WAS NOW OCCURRING ON THE CRISTINA RIVER IN 
NORTHERN DELAWARE AND THE PENNYPACK IN PHILADELPHIA.  IT SHOULD SOON 
BEGIN FLOODING ON THE CRUM CREEK IN NEWTOWN SQUARE. THE COOPER RIVER 
AT HADDONFIELD NEW JERSEY WAS RISING STEADILY AND MAY REACH FLOOD 
STAGE THIS EVENING. 

THE RAIN HAS ESSENTIALLY ENDED IN NORTHERN DELAWARE AND WILL BE 
DIMINISHING CONSIDERABLY OR ENDING BY 4 PM IN THE REMAINDER OF THE 
FLOOD WARNING AREA OF SOUTHEAST PENNSYLVANIA AND SOUTHWESTERN NEW 
JERSEY. 

THAT WILL MEAN THAT FARMLAND AND POOR DRAINAGE FLOODING WILL BE 
EASING AND ENDING.

HOWEVER...SMALL STREAMS WILL PROBABLY CONTINUE RISING INTO THIS 
EVENING AND SO PORTIONS OF THIS WARNING MAY BE EXTENDED AT 5 
PM...PENDING FURTHER REVIEW OF STREAM STAGE TRENDS. 

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON
SMALL CREEKS AND STREAMS...AND PONDING OF WATER ON COUNTRY ROADS AND
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

&&

LAT...LON 4044 7517 4004 7463 3971 7504 3954 7554
      3957 7552 3959 7555 3958 7556 3953 7556
      3946 7577 3998 7579

$$



DRAG
146 
WGUS41 KPHI 182118
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
418 PM EST SUN JAN 18 2015

DEC003-NJC005-007-015-033-PAC017-029-045-091-101-190430-
/O.EXT.KPHI.FA.W.0001.000000T0000Z-150119T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMDEN NJ-BUCKS PA-MONTGOMERY PA-PHILADELPHIA PA-DELAWARE PA-
GLOUCESTER NJ-CHESTER PA-NEW CASTLE DE-BURLINGTON NJ-SALEM NJ-
418 PM EST SUN JAN 18 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLOOD WARNING FOR SMALL STREAMS IN...
  NORTHWESTERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
  SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA...
  PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA...
  DELAWARE COUNTY IN SOUTHEAST PENNSYLVANIA...
  NORTHERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
  EASTERN CHESTER COUNTY IN SOUTHEAST PENNSYLVANIA...
  NORTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
  NORTHWESTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  NORTHERN SALEM COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 1130 PM EST

* AT 409 PM AT LEAST THREE GAUGED STREAMS WERE IN FLOOD AND
  PROBABLY A FEW OTHER TRIBUTARIES WERE IN FLOOD.  THOSE STREAMS
  KNOWN TO BE IN FLOOD WERE THE CRISTINA IN NORTHERN DELAWARE...THE
  PENNYPACK IN PHILADELPHIA AND THE CRUM CREEK IN NEWTOWN SQUARE. 
  THE CHESTER CREEK IN CHESTER PENNSYLVANIA WAS APPROACHING FLOOD
  BUT MAY CREST JUST BELOW FLOOD STAGE.   

* RECORD DAILY RAINFALL IN THE INTERSTATE 95 CORRIDOR FROM
  WILMINGTON TO PHILADELPHIA AND TRENTON OCCURRED TODAY. THE RAIN
  HAS ENDED BUT RUNOFF FROM THE 1.5 TO NEARLY 2 INCH RAINS MAY FORCE
  SOME STREAMS INTO FLOOD LATER TONIGHT.  THEREFORE...THE AT LEAST
  TEMPORARY EXTENSION OF THE WARNING INTO THE NIGHTTIME HOURS.  

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE STEADY. ALL INTERESTED PARTIES SHOULD TAKE 
NECESSARY PRECAUTIONS IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON
SMALL CREEKS AND STREAMS...AND PONDING OF WATER ON COUNTRY ROADS AND
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

&&

LAT...LON 4044 7517 4004 7463 3971 7504 3954 7554
      3957 7552 3959 7555 3958 7556 3953 7556
      3946 7577 3998 7579

$$


DRAG
562 
WGUS81 KPHI 190138
FLSPHI

FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
838 PM EST SUN JAN 18 2015

DEC003-NJC005-007-015-033-PAC017-029-045-091-101-190430-
/O.CON.KPHI.FA.W.0001.000000T0000Z-150119T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMDEN NJ-BUCKS PA-MONTGOMERY PA-PHILADELPHIA PA-DELAWARE PA-
GLOUCESTER NJ-CHESTER PA-NEW CASTLE DE-BURLINGTON NJ-SALEM NJ-
838 PM EST SUN JAN 18 2015

...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM EST FOR SMALL
STREAMS IN NORTHERN SALEM...NORTHWESTERN BURLINGTON...NORTHERN NEW
CASTLE...EASTERN CHESTER...NORTHERN GLOUCESTER...DELAWARE...
PHILADELPHIA...SOUTHEASTERN MONTGOMERY...SOUTHERN BUCKS AND
NORTHWESTERN CAMDEN COUNTIES...

AT 834 PM EST MOST STREAMS WERE RECEDING. THIS WARNING IS LIKELY TO 
BE CANCELLED BETWEEN 9 PM AND 10 PM AS SOON AS NEW DATA ARRIVES. THAT
DATA WILL BE CONFIRMING THE REMAINING TWO GAUGED STREAMS IN FLOOD 
AROUND 730 PM...THE CRISTINA AND PENNYPACK...SHOULD HAVE RECEDED 
BELOW FLOOD STAGE BY 9 PM. 

A FLOOD WARNING MEANS THAT FLOODING HAS BEEN REPORTED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON
SMALL CREEKS AND STREAMS...AND PONDING OF WATER ON COUNTRY ROADS AND
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

&&

LAT...LON 4044 7517 4004 7463 3971 7504 3954 7554
      3957 7552 3959 7555 3958 7556 3953 7556
      3946 7577 3998 7579

$$
DRAG
464 
WGUS81 KPHI 190236
FLSPHI

FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
936 PM EST SUN JAN 18 2015

DEC003-NJC005-007-015-033-PAC017-029-045-091-101-190245-
/O.CAN.KPHI.FA.W.0001.000000T0000Z-150119T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMDEN NJ-BUCKS PA-MONTGOMERY PA-PHILADELPHIA PA-DELAWARE PA-
GLOUCESTER NJ-CHESTER PA-NEW CASTLE DE-BURLINGTON NJ-SALEM NJ-
936 PM EST SUN JAN 18 2015

...THE FLOOD WARNING HAS BEEN CANCELLED FOR SMALL STREAMS IN NORTHERN
SALEM...NORTHWESTERN BURLINGTON...NORTHERN NEW CASTLE...EASTERN
CHESTER...NORTHERN GLOUCESTER...DELAWARE...PHILADELPHIA...
SOUTHEASTERN MONTGOMERY...SOUTHERN BUCKS AND NORTHWESTERN CAMDEN
COUNTIES...

ALL GAGED CREEKS ARE BACK WITHIN BANKFULL AND NO ADDITIONAL FLOODING
IS EXPECTED.

PLEASE BE WARY OF ICY PATCHES DEVELOPING OVERNIGHT WHERE STANDING WATER
REMAINS IN LOW LYING AREAS.
 
LAT...LON 4044 7517 4004 7463 3971 7504 3954 7554
      3957 7552 3959 7555 3958 7556 3953 7556
      3946 7577 3998 7579

$$

What forecasters said that day

The local office's own words before this areal flood warning went out, 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 this areal flood warning went out at Jan 18, 9:34 AM EST, 2 hours 9 minutes earlier.

Area forecast discussion, Jan 18, 9:34 AM EST, 2 hours 9 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
934 AM EST SUN JAN 18 2015

.SYNOPSIS...
A LOW PRESSURE SYSTEM WILL TRACK UP THE MIDDLE ATLANTIC COAST TODAY,
TRACKING NORTHWARD THROUGH OUR AREA TONIGHT BEFORE LIFTING INTO NEW
ENGLAND BY MONDAY MORNING. HIGH PRESSURE WILL PUSH ACROSS THE REGION
FOR MONDAY AND TUESDAY. A LOW PRESSURE SYSTEM WILL CROSS THE OHIO
VALLEY AND MOVE INTO OUR AREA LATE TUESDAY THROUGH WEDNESDAY
FOLLOWED BY HIGH PRESSURE FOR THURSDAY THROUGH THE END OF THE WEEK.
ANOTHER SYSTEM MAY AFFECT OUR AREA LATE IN THE WEEKEND.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
930 AM UPDATE...THE FREEZING RAIN ADVISORY HAS BEEN EXTENDED TO
NOON FOR MOST LOCATIONS, STILL TO 1 PM FOR THE NORTHERN PORTION OF
THE CWA. A FEW LOCATIONS IN THE WESTERN SUBURBS ARE STILL HOLDING
AT 29 DEGREES AND THOUGH MANY LOCATIONS FURTHER EAST AND SOUTH ARE
SEEING TEMPERATURES RIGHT AT 32, WE CONTINUE TO HEAR OF ICY
CONDITIONS ON THE ROADS. WITH ALL THE ISSUES FROM THIS MORNING, IT
MAY TAKE A LITTLE WHILE EVEN AFTER TEMPERATURES GET ABOVE FREEZING
FOR ICE ON SURFACES TO COMPLETELY MELT.

PREVIOUS DISCUSSION...AS OF 7 AM, A FREEZE RAIN ADVISORY HAS BEEN
ISSUED FOR MUCH OF THE INTERSTATE 95 CORRIDOR AND INTO THE LEHIGH
VALLEY. THIS IS DUE TO SOME FREEZING DRIZZLE AND EVEN LIGHT
RAIN/FREEZING RAIN STARTING TO DEVELOP FROM SOUTHWEST TO
NORTHEAST. THE TEMPERATURES ARE GRADUALLY INCREASING, HOWEVER MUCH
OF THE AREA IS STILL BELOW FREEZING AND THE GROUND IS COLD.

AN UPPER-LEVEL TROUGH WILL SHARPLY AMPLIFY AS IT ARRIVES ACROSS
THE EAST LATER TODAY. THIS WILL DRIVE A COLD FRONT EASTWARD ALONG
WITH INCREASING LARGE SCALE ASCENT. HIGH PRESSURE AT THE SURFACE
IS TO OUR EAST, THEREFORE A RETURN FLOW IS ACROSS THE REGION. THIS
IS RESULTING IN A SOUTH OR SOUTHEAST SURFACE FLOW AND WILL HELP
ASSIST IN BRINGING MILDER AIR NORTHBOUND AS THE WAA STRENGTHENS.

THE MOISTENING OF THE LOWER LEVELS IS ONGOING AND THIS IS EVIDENT BY
THE STRATUS THAT DEVELOPED ACROSS NORTHEASTERN PENNSYLVANIA. THIS IS
DUE TO AN UPSLOPE FLOW COMPONENT AND THE FORECAST SOUNDINGS SHOW A
QUICK SATURATION OF THE LOWER LEVELS. THIS SHOULD EXPAND ESPECIALLY
NORTHWARD WITH TIME THIS MORNING AS INCREASING WAA ALOFT STRENGTHENS
THE INVERSION AND ALSO HELPS TO MOISTEN THE LOWER LEVELS. THIS COULD
RESULT IN SOME FREEZING DRIZZLE. THE MODEL GUIDANCE CONTINUES TO BE
IN GOOD AGREEMENT SHOWING A STRENGTHENING AREA OF MID LEVEL LIFT AND
CONVERGENCE ESPECIALLY IN THE 850-700 MB LAYER. IN ADDITION, A
SOUTHERLY LOW-LEVEL JET AROUND 50 KNOTS IS FORECAST TO MOVE ACROSS
THE SOUTHERN AND EASTERN AREAS DURING THE DAY. THIS OCCURS AS THE
UPPER-LEVEL TROUGH GETS CLOSER AND BEGINS TO TAKE ON A NEGATIVE
TILT. AS A RESULT, A BAND OF RAIN QUICKLY DEVELOPS AND EXPANDS
NORTHWARD AND STRONG FORCING WITHIN A MOISTURE SURGE SHOULD PROMOTE
A PERIOD OF MODERATE TO HEAVY RAIN. THE ONSET OF THIS MAY BE DELAYED
TO ALLOW SURFACE TEMPERATURES TO WARM JUST ENOUGH FARTHER NORTH,
ALTHOUGH THE GROUND TEMPERATURES ARE COLD AND WILL TAKE LONGER TO
RESPOND. THEREFORE, SOME LIGHT FREEZING RAIN/DRIZZLE CANNOT RULED
OUT FOR A TIME. THIS IS A TOUGH CALL, BUT IT ONLY TAKES A TRACE
OF ICE TO TRIGGER AN ADVISORY.

WE QUICKLY RAMP UP THE POPS TO CATEGORICAL ACROSS MUCH OF THE AREA
DURING THE MORNING, THEN THEY BEGIN TO DECREASE LATER THIS AFTERNOON
FROM WEST TO EAST. WHILE A RUMBLE OF THUNDER CANNOT BE RULED OUT,
THIS MAY HAVE A BETTER CHC OF OCCURRING OFFSHORE AS THE SYSTEM GOES
NEGATIVELY TILTED AND THE SURFACE LOW STRENGTHENS AS IT LIFTS
NORTHEASTWARD. THE PERIOD OF HEAVY RAIN /1.0-1.5 INCHES NEAR AND
EAST OF INTERSTATE 95/ COULD RESULT IN SOME POOR DRAINAGE FLOODING,
HOWEVER THE OVERALL FLOOD THREAT LOOKS LIMITED AND THEREFORE NO
FLOOD WATCH WILL BE ISSUED ATTM.

AS FOR THE HIGH TEMPERATURES, WE USED A BLEND OF THE NAM/GFS MOS
OVERALL AND THIS PAINTS TEMPERATURES SPIKING TO AROUND 50 DEGREES
CLOSER TO THE COAST FOR A TIME LATER TODAY. WE HAVE LOWER CONFIDENCE
IN THE HIGHS FOR THE WESTERN ZONES THOUGH. THE LAMP/LAV GUIDANCE WAS
USED FOR ASSISTANCE IN THE HOURLY TEMPERATURE GRIDS THIS MORNING.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM MONDAY/...
AS A NEGATIVELY TILTED UPPER-LEVEL TROUGH CROSSES THE AREA IN THE
EVENING, A STRENGTHENING SURFACE LOW IS FORECAST TO TRACK INTO NEW
ENGLAND. THIS WILL ALLOW THE STRONG FORCING TO QUICKLY SHIFT
OFFSHORE, AND THEREFORE THE RAIN WILL BE ENDING FROM WEST TO EAST
EARLY. IT APPEARS THAT EVEN AS THE CAA KICKS IN, THE RAIN IS ENDING
AND THEREFORE NOT MUCH OF A CHC THAT THE RAIN CHANGES TO SNOW BEFORE
ENDING.

THE WINDS WILL SHIFT TO THE WEST AND NORTHWEST AND MAY BECOME A BIT
GUSTY AS THE CAA ALLOWS FOR SOME BETTER MIXING AND THE PRESSURE
GRADIENT TIGHTENS. THE PRESENCE OF THE UPPER-LEVEL TROUGH AND
CYCLONIC FLOW MAY ALLOW FOR A FAIR AMOUNT OF STRATOCUMULUS ACROSS
THE AREA FOR AWHILE ESPECIALLY FARTHER NORTHWARD BEFORE MORE NOTABLE
CLEARING OCCURS.

AS FOR THE LOW TEMPERATURES, WE MOSTLY UTILIZED A BLEND OF THE
NAM/GFS MOS.

&&

.LONG TERM /MONDAY THROUGH SATURDAY/...
MONDAY...AS THE LOW PULLS AWAY INTO NEW ENGLAND, THE ASSOCIATED MID
LEVEL TROUGH WILL GET PULLED ALONG WITH IT. THERE IS NOT A TON OF
MOISTURE LEFT BEHIND AS THE NORTHWEST FLOW STRENGTHENS AND WE SHOULD
HAVE A BIT MORE SUN AVAILABLE. AS THE NORTHWEST FLOW RAMPS UP, WE
COULD SEE SOME MOISTURE ADVECT IN FROM THE GREAT LAKES AREA WHERE
THE LAKES ARE STILL NOT FROZEN OVER YET, AND A FEW FLURRIES MAY
OCCUR. CONFIDENCE IS NOT HIGH THAT FLURRIES WILL OCCUR OVER THE
NORTHWESTERN ZONES AND WE HAVE LEFT THIS OUT OF THE GRIDS AT THIS
TIME. THE WINDS WILL BECOME GUSTY AS THE GRADIENT REALLY TIGHTENS UP
WITH THE DEPARTING DEEPENING LOW. EXPECT GUSTY WINDS, WITH GUSTS UP
AROUND 25 TO 30 MPH, TO CONTINUE THROUGH THE DAYTIME BEFORE STARTING
TO TAPER OFF TOWARD EVENING. TEMPERATURES WILL BE COLDER, MAYBE A
COUPLE OF DEGREES, THAN WHAT GUIDANCE IS SHOWING AS THE COLD AIR
MOVES IN .

TUESDAY THROUGH WEDNESDAY...A WEAK HIGH PRESSURE SYSTEM TRIES TO
BUILD ACROSS THE AREA BUT LOOKS MORE LIKE A BRIEF RIDGE FOR OUR
AREA. THIS SLIGHT RIDGING WILL HELP KEEP TUESDAY DRY AHEAD OF THE
NEXT SYSTEM. A LOW PRESSURE SYSTEM WILL APPROACH FROM THE WEST FOR
TUESDAY NIGHT AND WILL CROSS THE REGION ON WEDNESDAY. PRECIPITATION
STARTS TO MOVE IN DURING TUESDAY NIGHT AND WE SHOULD SEE THE
PRECIPITATION START OFF AS SNOW TO THE NORTH AND WEST OF THE I-95
CORRIDOR. POINTS TO THE SOUTH AND EAST MAY SEE MORE OF A RAIN/SNOW
MIX. GUIDANCE SHOWS THE LOW TRACKING MORE ACROSS OUR SOUTHERN AREAS.
THIS SOLUTION LEADS TO LESS SNOW IN PARTS OF THE AREA. HOWEVER,
SHOULD THE STORM SHIFT FURTHER TO SOUTH, WE COULD SEE MORE SNOW AND
LESS RAIN AND POSSIBLY HAVE A LIGHT SNOWFALL ACCUMULATION.
CONVERSELY, A SHIFT TO THE NORTH WOULD LESSEN THE CHANCES FOR SNOW
IN SOME AREAS. ALL PRECIPITATION LOOKS TO END BY WEDNESDAY EVENING
WITH WEDNESDAY NIGHT REMAINING DRY.

THURSDAY THROUGH SATURDAY...HIGH PRESSURE WILL BUILD INTO THE AREA
FROM THE WEST BUT REMAIN CENTERED TO THE SOUTHWEST OF OUR AREA. A
FEW SHORTWAVES EMBEDDED IN THE MIDLEVEL FLOW WILL ROTATE THROUGH OUR
AREA DURING THIS PERIOD. WHILE, THERE WILL BE A BIT OF MOISTURE IN
PLACE AS THESE WAVES MOVE THROUGH, FOR THE MOST PART WE EXPECT
CONDITIONS TO REMAIN DRY. THE MODELS HAVE BACKED OFF ON A LOW
PRESSURE SYSTEM MOVING THROUGH ON FRIDAY AND KEEP IT TO THE SOUTH OF
THE AREA. THE MODELS ARE HINTING AT ANOTHER SYSTEM MOVING IN LATER
IN THE WEEKEND TOWARDS EARLY NEXT WEEK.

TEMPERATURES WILL BE NEAR NORMAL TO START THE PERIOD WITH A TREND
TOWARD BELOW NORMAL BY THE END OF THE PERIOD.

&&

.AVIATION /15Z SUNDAY THROUGH THURSDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

TODAY...IFR/LIFR THROUGH THE DAY AS PRECIP OVERSPREADS THE AREA
FROM SOUTH TO NORTH. FREEZING RAIN IS POSSIBLE AT KABE AND KRDG
THROUGH 17Z, FOR KPHL, KPNE, AND KTTN, THE TRANSITION TO RAIN IS
IMMENIENT AS OF 930 AM. KILG, KMIV, AND KACY SHOULD SEE ALL RAIN.
SOME OF RAIN CAN BE HEAVY AT TIMES ESPECIALLY FOR KTTN, KPNE,
KPHL, KILG ON EASTWARD FROM LATE MORNING UNTIL ABOUT MID
AFTERNOON. THIS ALONG WITH SOME POTENTIALLY DEVELOPING FOG WILL
REDUCE THE VISIBILITIES TO OR BELOW 3SM. THERE CAN BE SOME LIGHT
FREEZING RAIN/DRIZZLE NEAR AND NORTH AND WEST OF KPHL THROUGH
ABOUT 15Z. SOUTH-SOUTHEAST WINDS MAINLY LESS THAN 10 KNOTS, WHICH
MAY GO LOCALLY VARIABLE FOR AWHILE.

A LOW-LEVEL JET AROUND 50 KNOTS FROM A SOUTHERLY DIRECTION IS
ANTICIPATED TO MOVE ACROSS AT LEAST KMIV AND KACY FROM ABOUT 15Z TO
22Z, AND THEREFORE A LOW-LEVEL WIND SHEAR REMARK IS INCLUDED.

TONIGHT...A COLD FRONT RAPIDLY PIVOTS TO OUR NORTHEAST IN THE EARLY
EVENING, TAKING THE BAND OF RAIN WITH IT. THE RAIN SHOULD END
QUICKLY FROM WEST TO EAST WITH A WIND SHIFT TO THE NORTHWEST WITH
SOME INCREASE. THE ARRIVAL OF DRIER AIR SHOULD ALLOW THE CEILINGS TO
RISE AND IMPROVE TO VFR. LIGHT SOUTHERLY WINDS SHIFTING TO THE WEST
AND NORTHWEST AND INCREASING TO 10-15 KNOTS.

OUTLOOK...
MONDAY...MAINLY VFR CONDITIONS EXPECTED. GUSTY NORTHWEST WINDS 10 TO
15 KNOTS WITH GUSTS AROUND 20 TO 25 KNOTS, HIGHER TOWARDS THE EAST.
WINDS WILL DIMINISH TOWARD THE OVERNIGHT HOURS.

TUESDAY...VFR CONDITIONS EXPECTED...BECOMING MVFR IN RAIN/SNOW
SHOWERS TUESDAY NIGHT.

WEDNESDAY...MVFR CONDITIONS EXPECTED IN RAIN/SNOW WITH IFR OCCURRING
AT TIMES...BECOMING VFR DURING THE AFTERNOON/EVENING.

THURSDAY: VFR CONDITIONS EXPECTED.

&&

.MARINE...
A SOUTHERLY FLOW TODAY AHEAD OF A SHARPENING UPPER-LEVEL TROUGH WILL
INCREASE. A LOW-LEVEL JET AROUND 50 KNOTS WILL MOVE ACROSS THE AREA
LATER THIS MORNING AND THIS AFTERNOON, HOWEVER WARMING ALOFT WILL
KEEP AN INVERSION IN PLACE. THERE WILL BE ENOUGH MIXING THOUGH AND
THEREFORE GUSTS TO ABOUT 25 KNOTS SHOULD OCCUR ON THE COASTAL
WATERS. WHILE THE SURFACE FLOW MAY BE UP DELAWARE BAY FOR AWHILE, WE
ARE NOT ANTICIPATING A FUNNELING EFFECT AND WILL KEEP CONDITIONS
BELOW ADVISORY CRITERIA FOR NOW. THE SEAS WILL RESPOND TO THE
SOUTHERLY FLOW THROUGH THE DAY. A COLD FRONT SHIFTS QUICKLY OFFSHORE
THIS EVENING, ALLOWING FOR A WIND SHIFT TO THE WEST AND NORTHWEST.
THERE WILL BE CAA ALONG WITH A TIGHTENING PRESSURE GRADIENT TONIGHT,
WITH ADVISORY LEVELS GUSTS ANTICIPATED MAINLY ON THE COASTAL WATERS.
OUR CONFIDENCE IS NOT HIGH ENOUGH TO ISSUE A SMALL CRAFT ADVISORY
FOR DELAWARE BAY, THEREFORE ONE IS MAINTAINED FOR JUST THE COASTAL
WATERS.

OUTLOOK...
MONDAY...THE SMALL CRAFT ADVISORY WILL CONTINUE THROUGH 6PM MONDAY
ON THE OCEAN. SEAS WILL REMAIN ABOVE 5 FEET THROUGH THE DAY WITH A
DOWNWARD TREND TOWARD MONDAY EVENING. SEAS MAY REMAIN SLIGHTLY
ELEVATED MONDAY EVENING BUT CONFIDENCE IS NOT HIGH AT THIS TIME AND
THEREFORE WE HAVE NOT EXTENDED THE SMALL CRAFT ADVISORY INTO MONDAY
NIGHT. IN ADDITION TO THE SEAS, WE WILL HAVE GUSTY NORTHWEST WINDS
WITH GUSTS TO 30 KNOTS THROUGH MONDAY AFTERNOON. WINDS WILL DIMINISH
MONDAY AFTERNOON AND EVENING, FALLING BELOW 25 KNOTS.

WINDS ON THE LOWER DELAWARE BAY MAY NEAR 25 KNOTS AT TIMES IN THE
GUSTY NORTHWEST FLOW DURING MONDAY AFTERNOON AND A SMALL CRAFT
ADVISORY MAY BE NEEDED. CONFIDENCE WAS NOT HIGH ENOUGH AT THIS
TIME AND THEREFORE WE DID NOT RAISE ONE WITH THIS FORECAST
PACKAGE.

TUESDAY THROUGH THURSDAY...BOTH WINDS AND SEAS SHOULD REMAIN BELOW
SMALL CRAFT ADVISORY CRITERIA.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...FREEZING RAIN ADVISORY UNTIL 1 PM EST THIS AFTERNOON FOR
     PAZ054-055-062.
     FREEZING RAIN ADVISORY UNTIL NOON EST TODAY FOR PAZ060-061-070-
     071-101>106.
NJ...FREEZING RAIN ADVISORY UNTIL 1 PM EST THIS AFTERNOON FOR
     NJZ001-007-008-010.
     FREEZING RAIN ADVISORY UNTIL NOON EST TODAY FOR NJZ009-012-013-
     015-017>019.
DE...FREEZING RAIN ADVISORY UNTIL NOON EST TODAY FOR DEZ001.
MD...FREEZING RAIN ADVISORY UNTIL NOON EST TODAY FOR MDZ008.
MARINE...SMALL CRAFT ADVISORY UNTIL 6 PM EST MONDAY FOR ANZ450>455.

&&

SYNOPSIS...MEOLA
NEAR TERM...GORSE/JOHNSON
SHORT TERM...GORSE
LONG TERM...MEOLA
AVIATION...GORSE/MEOLA/JOHNSON
MARINE...GORSE/MEOLA
Hazardous weather outlook, Jan 18, 9:28 AM EST, 2 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
928 AM EST SUN JAN 18 2015

NJZ001-007-PAZ054-055-062-191430-
SUSSEX-WARREN-CARBON-MONROE-NORTHAMPTON-
928 AM EST SUN JAN 18 2015

...FREEZING RAIN ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

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

.DAY ONE...TODAY AND TONIGHT.

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

   FREEZING RAIN ADVISORY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NJZ008-010-191430-
MORRIS-SOMERSET-
928 AM EST SUN JAN 18 2015

...FREEZING RAIN ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN NEW JERSEY.

.DAY ONE...TODAY AND TONIGHT.

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

   FREEZING RAIN ADVISORY.

A PERIOD OF HEAVY RAIN LATER THIS MORNING AND THIS AFTERNOON MAY
RESULT IN SOME FLOODING IN AREAS OF POOR DRAINAGE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NJZ009-012-015-017>019-PAZ060-061-070-071-101>106-191430-
HUNTERDON-MIDDLESEX-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
BERKS-LEHIGH-DELAWARE-PHILADELPHIA-WESTERN CHESTER-EASTERN CHESTER-
WESTERN MONTGOMERY-EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
928 AM EST SUN JAN 18 2015

...FREEZING RAIN ADVISORY IN EFFECT UNTIL NOON EST TODAY...

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

.DAY ONE...TODAY AND TONIGHT.

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

   FREEZING RAIN ADVISORY.

A PERIOD OF HEAVY RAIN LATER THIS MORNING AND THIS AFTERNOON MAY
RESULT IN SOME FLOODING IN AREAS OF POOR DRAINAGE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

DEZ002>004-MDZ012-015-019-020-NJZ014-016-020>027-191430-
KENT-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-TALBOT-
CAROLINE-EASTERN MONMOUTH-SALEM-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
928 AM EST SUN JAN 18 2015

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

.DAY ONE...TODAY AND TONIGHT.

A PERIOD OF HEAVY RAIN LATER THIS MORNING AND THIS AFTERNOON MAY
RESULT IN SOME FLOODING IN AREAS OF POOR DRAINAGE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

DEZ001-MDZ008-NJZ013-191430-
NEW CASTLE-CECIL-WESTERN MONMOUTH-
928 AM EST SUN JAN 18 2015

...FREEZING RAIN ADVISORY IN EFFECT UNTIL NOON EST TODAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN DELAWARE...NORTHEAST
MARYLAND AND CENTRAL NEW JERSEY.

.DAY ONE...TODAY AND TONIGHT.

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

   FREEZING RAIN ADVISORY.

A PERIOD OF HEAVY RAIN LATER THIS MORNING AND THIS AFTERNOON MAY
RESULT IN SOME FLOODING IN AREAS OF POOR DRAINAGE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ430-431-450>455-191430-
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-
928 AM EST SUN JAN 18 2015

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

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jan 18, 9:02 AM EST, 2 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
902 AM EST SUN JAN 18 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0819 AM     FREEZING RAIN    SEWELL                  39.77N  75.14W
01/18/2015  M0.00 INCH       GLOUCESTER         NJ   TRAINED SPOTTER

0820 AM     FREEZING RAIN    PERTH AMBOY             40.52N  74.27W
01/18/2015  M0.10 INCH       MIDDLESEX          NJ   SOCIAL MEDIA

0839 AM     FREEZING RAIN    READINGTON TWP          40.57N  74.80W
01/18/2015  M0.00 INCH       HUNTERDON          NJ   TRAINED SPOTTER

0849 AM     FREEZING RAIN    HELMETTA                40.38N  74.42W
01/18/2015  M0.00 INCH       MIDDLESEX          NJ   TRAINED SPOTTER

0849 AM     FREEZING RAIN    GLENMOORE               40.09N  75.77W
01/18/2015  M0.00 INCH       CHESTER            PA   CO-OP OBSERVER

0850 AM     FREEZING RAIN    LIONVILLE               40.05N  75.66W
01/18/2015  M0.10 INCH       CHESTER            PA   SOCIAL MEDIA

&&

EVENT NUMBER PHI1500034
EVENT NUMBER PHI1500035
EVENT NUMBER PHI1500036
EVENT NUMBER PHI1500037
EVENT NUMBER PHI1500038
EVENT NUMBER PHI1500039

STAFF
Local storm report, Jan 18, 9:24 AM EST, 2 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
924 AM EST SUN JAN 18 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0730 AM     FREEZING RAIN    SOUTH PLAINFIELD        40.58N  74.42W
01/18/2015  M0.00 INCH       MIDDLESEX          NJ   SOCIAL MEDIA

0920 AM     FREEZING RAIN    RANDOLPH TWP            40.85N  74.57W
01/18/2015  M0.00 INCH       MORRIS             NJ   COCORAHS

&&

EVENT NUMBER PHI1500040
EVENT NUMBER PHI1500041

STAFF
Local storm report, Jan 18, 9:48 AM EST, 1 hour 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
948 AM EST SUN JAN 18 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0938 AM     FREEZING RAIN    PARSIPPANY              40.86N  74.43W
01/18/2015  M0.25 INCH       MORRIS             NJ   SOCIAL MEDIA

0944 AM     FREEZING RAIN    BALA CYNWYD             40.01N  75.23W
01/18/2015  E0.00 INCH       MONTGOMERY         PA   SOCIAL MEDIA

&&

EVENT NUMBER PHI1500042
EVENT NUMBER PHI1500043

STAFF
Local storm report, Jan 18, 10:04 AM EST, 1 hour 39 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1004 AM EST SUN JAN 18 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0952 AM     FREEZING RAIN    WYOMISSING              40.33N  75.95W
01/18/2015  M0.00 INCH       BERKS              PA   TRAINED SPOTTER

0954 AM     FREEZING RAIN    SHILLINGTON             40.33N  75.97W
01/18/2015  M0.00 INCH       BERKS              PA   SOCIAL MEDIA

&&

EVENT NUMBER PHI1500044
EVENT NUMBER PHI1500045

STAFF
Special weather statement, Jan 18, 10:37 AM EST, 1 hour 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1037 AM EST SUN JAN 18 2015

DEZ001-MDZ008-NJZ015-017>019-PAZ070-071-101-102-104-106-181700-
NEW CASTLE-CECIL-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
DELAWARE-PHILADELPHIA-WESTERN CHESTER-EASTERN CHESTER-
EASTERN MONTGOMERY-LOWER BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...TRENTON...
GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...
MEDIA...PHILADELPHIA...HONEY BROOK...OXFORD...WEST CHESTER...
KENNETT SQUARE...NORRISTOWN...LANSDALE...MORRISVILLE...DOYLESTOWN
1037 AM EST SUN JAN 18 2015

...DANGEROUS DRIVING CONDITIONS CONTINUE...

THOUGH MANY LOCATIONS ARE AT FREEZING OR JUST ABOVE FREEZING, WITH
THE EARLIER ICE ACCUMULATIONS, ROAD CONDITIONS WILL BE SLOW TO
IMPROVE THROUGH THE MORNING. IF YOU MUST DRIVE THIS MORNING, PLEASE
EXERCISE EXTREME CAUTION FOR ICY SPOTS. AVOID UNNECESSARY TRAVEL
THROUGH THE MORNING.

NJZ001-007>010-012-PAZ054-055-060>062-103-105-181700-
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-CARBON-MONROE-
BERKS-LEHIGH-NORTHAMPTON-WESTERN MONTGOMERY-UPPER BUCKS-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...JIM THORPE...
STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON...
COLLEGEVILLE...POTTSTOWN...CHALFONT...PERKASIE
1037 AM EST SUN JAN 18 2015

...DANGEROUS DRIVING CONDITIONS CONTINUE...

FREEZING RAIN AND FREEZING DRIZZLE CONTINUE OVER NORTHWEST NEW
JERSEY, THE POCONOS AND LEHIGH VALLEY IN PENNSYLVANIA.
TEMPERATURES ARE EXPECTED TO HOVER JUST BELOW FREEZING THROUGH THE
MORNING HOURS. THIS WILL LEAD TO A GLAZE OF ICE ON UNTREATED ROAD
SURFACES, CAUSING HAZARDOUS DRIVING CONDITIONS. PLEASE AVOID ANY
UNNECESSARY TRAVEL.

JOHNSON
Local storm report, Jan 18, 10:41 AM EST, 1 hour 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1041 AM EST SUN JAN 18 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1020 AM     FREEZING RAIN    NORRISTOWN              40.12N  75.34W
01/18/2015  M0.30 INCH       MONTGOMERY         PA   SOCIAL MEDIA

            MULTIPLE ACCIDENTS ON SIDE ROADS IN NORRISTOWN

1040 AM     FREEZING RAIN    GILBERTSVILLE           40.32N  75.61W
01/18/2015  M0.10 INCH       MONTGOMERY         PA   TRAINED SPOTTER

&&

EVENT NUMBER PHI1500046
EVENT NUMBER PHI1500047

STAFF

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 18, 6:58 AM ESTFreezing Rain AdvisoryPHIBurlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 5 more6 hr
Jan 18, 11:22 AM ESTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Salem6 hr
Jan 18, 11:57 AM ESTAreal Flood AdvisoryPHIBurlington, Hunterdon, Mercer, Middlesex, Monmouth, Morris and 2 more8 hr
Jan 18, 2:24 PM ESTSpecial Weather StatementPHIOcean36 min
Jan 18, 3:57 PM ESTAreal Flood WarningPHIBurlington, Hunterdon, Mercer, Middlesex, Monmouth, Morris and 1 more10 hr
Jan 18, 12:08 PM ESTRiver Flood WarningPHINew Castle13 hr

Nearby

Areal Flood Warnings in Pennsylvania, 2015Areal Flood Warnings in New Jersey, 2015Areal Flood Warnings in Delaware, 2015Every areal flood warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.