Alert archive / Pennsylvania / Areal Flood Warnings in 2014

Areal Flood Warning 2, NWS Philadelphia/Mount Holly

January 8, 2014Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood warning at Jan 8, 2014, 5:04 PM EST for Northampton County, Pennsylvania. It was in force for 42 hr. 1 report 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 8, 2014, 5:04 PM EST (22:04 UTC)
Expired
Jan 10, 2014, 10:47 AM EST
In force
42 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

County Northampton County, PA

The radar

The Philadelphia radar (KDIX), 107 km from the middle of the area, began a volume at 22:01 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 8, 6:35 PM ESTFLOODWest Easton, PACOUNTY EMERGENCY DISPATCHERS REPORTED A VEHICLE BECAME STUCK IN 4 FEET OF ICY WATER ON LEHIGH DRIVE. A FIRE RESCUE TEAM WAS CALLED TO THE SCENE WITH ONE PERSON FREED FROM THE VEHICLE.

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

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.1 hours before the alert went out and 150 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, Phillips Aaf/Abe, MD at 12:00Z on 2014-01-08Temperature 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 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phillips Aaf/Abe, MD at 12:00Z on 2014-01-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -41 square meters per square second.1939587897117Sfc1 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
1559 m above ground
0-6 km bulk shear
78 kt
0-1 km storm-relative helicity
-41 m²/s²
0-3 km storm-relative helicity
78 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.

158 
WGUS41 KPHI 082204
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
504 PM EST WED JAN 8 2014

PAC095-090945-
/O.NEW.KPHI.FA.W.0002.140108T2204Z-140109T0945Z/
/00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHAMPTON PA-
504 PM EST WED JAN 8 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLOOD WARNING FOR...
  SOUTH CENTRAL NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...

* UNTIL 445 AM EST THURSDAY

* AT 448 PM EST...AN ICE JAM WAS REPORTED ON THE LEHIGH RIVER JUST 
DOWNSTREAM FROM THE OLD GLENDON BRIDGE IN EASTON PA. WATER AND ICE 
ARE NOW COVERING PARTS OF LEHIGH DRIVE UPSTREAM FROM THE JAM. SOME 
HOMES ALONG LEHIGH DRIVE MAY ALSO BE AFFECTED. WITH COLD 
TEMPERATURES PERSISTING THROUGH THE OVERNIGHT HOURS...THIS JAM 
SHOULD REMAIN IN PLACE AT LEAST INTO THURSDAY MORNING. HOWEVER...ICE 
JAMS CAN BEHAVE ERRATICALLY, AND RESIDENTS AND BUSINESSES ALONG THE 
LEHIGH RIVER...FROM NEAR THE OLD GLENDON BRIDGE DOWNSTREAM TO ITS 
CONFLUENCE WITH THE DELAWARE RIVER...SHOULD REMAIN ALERT FOR RAPIDLY 
CHANGING CONDITIONS UNTIL THE JAM CLEARS THE AREA OVER THE NEXT 
COUPLE OF DAYS.

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. MOVE TO HIGHER GROUND.

&&
 
LAT...LON 4069 7522 4067 7521 4061 7532 4064 7533

$$

MIKETTA
4 follow-up statements
015 
WGUS41 KPHI 090908
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
408 AM EST THU JAN 9 2014

PAC095-092145-
/O.EXT.KPHI.FA.W.0002.000000T0000Z-140109T2145Z/
/00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHAMPTON PA-
408 AM EST THU JAN 9 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLOOD WARNING FOR...
  SOUTH CENTRAL NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...

* UNTIL 445 PM EST THURSDAY

* AT 400 AM EST...AN ICE JAM IS STILL IN PLACE ALONG THE LEHIGH 
RIVER JUST DOWNSTREAM FROM THE OLD GLENDON BRIDGE IN EASTON PA. 
WATER AND ICE ARE NOW COVERING PARTS OF LEHIGH DRIVE UPSTREAM FROM 
THE JAM. SOME HOMES ALONG LEHIGH DRIVE MAY ALSO BE AFFECTED. WITH 
COLD TEMPERATURES PERSISTING THROUGH THE MORNING HOURS...THIS JAM 
SHOULD REMAIN IN PLACE AT LEAST INTO THE EARLY AFTERNOON. 
HOWEVER...ICE JAMS CAN BEHAVE ERRATICALLY, AND RESIDENTS AND 
BUSINESSES ALONG THE LEHIGH RIVER...FROM NEAR THE OLD GLENDON BRIDGE 
DOWNSTREAM TO ITS CONFLUENCE WITH THE DELAWARE RIVER...SHOULD REMAIN 
ALERT FOR RAPIDLY CHANGING CONDITIONS UNTIL THE JAM CLEARS THE AREA 
OVER THE NEXT COUPLE OF DAYS.

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...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 4069 7522 4067 7521 4061 7532 4064 7533

$$

PO
162 
WGUS41 KPHI 091645
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1145 AM EST THU JAN 9 2014

PAC095-100945-
/O.EXT.KPHI.FA.W.0002.000000T0000Z-140110T0945Z/
/00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHAMPTON PA-
1145 AM EST THU JAN 9 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLOOD WARNING FOR...
  SOUTH CENTRAL NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...

* UNTIL 445 AM EST FRIDAY

* AT 1136 AM EST...AN ICE JAM WAS STILL IN PLACE ALONG THE LEHIGH 
RIVER JUST DOWNSTREAM FROM THE OLD GLENDON BRIDGE IN EASTON PA. 
WATER AND ICE WERE COVERING PARTS OF LEHIGH DRIVE UPSTREAM FROM THE 
JAM. SOME HOMES ALONG LEHIGH DRIVE MAY ALSO BE AFFECTED. WITH BELOW 
FREEZING TEMPERATURES PERSISTING THROUGH TONIGHT, THIS JAM SHOULD 
REMAIN IN PLACE AT LEAST THROUGH SUNRISE FRIDAY MORNING. HOWEVER, 
ICE JAMS CAN BEHAVE ERRATICALLY, AND RESIDENTS AND BUSINESSES ALONG 
THE LEHIGH RIVER, FROM NEAR THE OLD GLENDON BRIDGE DOWNSTREAM TO ITS 
CONFLUENCE WITH THE DELAWARE RIVER, SHOULD REMAIN ALERT FOR RAPIDLY 
CHANGING CONDITIONS UNTIL THE JAM CLEARS.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 4069 7522 4067 7521 4061 7532 4064 7533

$$

KRUZDLO
288 
WGUS41 KPHI 100800
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
300 AM EST FRI JAN 10 2014

PAC095-101545-
/O.EXT.KPHI.FA.W.0002.000000T0000Z-140110T1545Z/
/00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHAMPTON PA-
300 AM EST FRI JAN 10 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLOOD WARNING FOR...
  SOUTH CENTRAL NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...

* UNTIL 1045 AM EST

* AT 258 AM EST A PART OF THE ICE JAM WAS STILL IN PLACE ALONG THE   
  LEHIGH RIVER JUST DOWNSTREAM FROM THE OLD GLENDON BRIDGE IN EASTON 
  PA. WHILE THE RIVER HAS RECEDED, ICE WAS COVERING PARTS OF LEHIGH 
  DRIVE UPSTREAM FROM THE JAM.  WITH BELOW FREEZING TEMPERATURES
  PERSISTING INTO THE MORNING, THIS JAM SHOULD REMAIN IN PLACE.
  HOWEVER, ICE JAMS CAN BEHAVE ERRATICALLY, AND RESIDENTS AND   
  BUSINESSES ALONG THE LEHIGH RIVER, FROM NEAR THE OLD GLENDON
  BRIDGE DOWNSTREAM TO ITS CONFLUENCE WITH THE DELAWARE RIVER, 
  SHOULD REMAIN ALERT FOR RAPIDLY CHANGING CONDITIONS UNTIL THE JAM 
  CLEARS.

A FLOOD WARNING MEANS THAT FLOODING HAS BEEN REPORTED. ALL 
INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
 
&&

LAT...LON 4069 7522 4067 7521 4061 7532 4064 7533

$$

TFG
530 
WGUS81 KPHI 101547
FLSPHI

FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1047 AM EST FRI JAN 10 2014

PAC095-101526-
/O.CAN.KPHI.FA.W.0002.000000T0000Z-140110T1545Z/
/00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHAMPTON PA-
1047 AM EST FRI JAN 10 2014

...THE FLOOD WARNING HAS BEEN CANCELLED FOR SOUTH CENTRAL NORTHAMPTON
COUNTY...

WATER LEVELS ALONG THE LEHIGH RIVER IN WEST EASTON AND EASTON IN 
NORTHAMPTON COUNTY HAVE RECEDED. IT APPEARS THE ICE JAM DOWNSTREAM 
FROM THE OLD GLENDON BRIDGE MAY HAVE ERODED SUFFICIENTLY ENOUGH TO 
ALLOW WATER TO FLOW THROUGH THE JAM ON ITS WAY TO THE DELAWARE 
RIVER. THE STAGE ON THE LEHIGH RIVER AT THE GLENDON GAGE DROPPED TO 
13.1 FEET OVERNIGHT, WITH SOME FLUCTUATION REPORTED SINCE SUNRISE. 
FLOOD STAGE AT THE GLENDON GAGE IS 19 FEET.  THE FLOOD WARNING FOR 
SOUTH CENTRAL NORTHAMPTON COUNTY HAS THEREFORE BEEN CANCELLED.

ICE JAMS BEHAVE ERRATICALLY...SO THIS SITUATION WILL BE MONITORED BY 
LOCAL EMERGENCY MANAGEMENT OFFICIALS AND THE NATIONAL WEATHER 
SERVICE. ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED AS 
CONDITIONS WARRANT.    


LAT...LON 4069 7522 4067 7521 4061 7532 4064 7533

$$
JJM

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 8, 5:08 AM ESTWind Chill AdvisoryPHICarbon, Monroe5 hr
Jan 8, 10:21 AM ESTFlash Flood WatchPHIBucks, Philadelphia41 hr
Jan 8, 2:58 PM ESTRiver Flood WarningPHIBucks30 hr

Nearby

Areal Flood Warnings in Pennsylvania, 2014Every areal flood warning in 2014

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.