Alert archive / Pennsylvania / Wind Chill Watches in 2016

Wind Chill Watch 1, NWS Philadelphia/Mount Holly

February 11, 2016Carbon County, Monroe County, Pennsylvania; Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this wind chill watch at Feb 11, 2016, 2:15 PM EST for Carbon County, Monroe County, Pennsylvania; Sussex County, New Jersey. It took effect at Feb 13, 2016, 6:00 PM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 11, 2016, 2:15 PM EST (19:15 UTC)
In effect from
Feb 13, 2016, 6:00 PM EST
Expired
Feb 12, 2016, 3:42 AM EST
In force
Issued by
NWS Philadelphia/Mount Holly

Counties Sussex County, NJ, Carbon County, PA, Monroe County, PA

The radar

The Philadelphia radar (KDIX), 140 km from the middle of the area, began a volume at 19:12 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.

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.3 hours before the alert went out and 189 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 2016-02-11Temperature 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 2016-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
1149 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

270 
WWUS41 KPHI 111915
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
215 PM EST THU FEB 11 2016

...DANGEROUSLY COLD WIND CHILLS THIS WEEKEND...

NJZ001-PAZ054-055-121000-
/O.NEW.KPHI.WC.A.0001.160213T2300Z-160214T1400Z/
SUSSEX-CARBON-MONROE-
INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG
215 PM EST THU FEB 11 2016

...WIND CHILL WATCH IN EFFECT FROM SATURDAY EVENING THROUGH
SUNDAY MORNING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND
CHILL WATCH, WHICH IS IN EFFECT FROM SATURDAY EVENING THROUGH
SUNDAY MORNING.

* LOCATIONS...THE POCONOS AND FAR NORTHWESTERN NEW JERSEY.

* WIND CHILL VALUES...DROPPING TO 20 TO 30 DEGREES BELOW ZERO
  SATURDAY NIGHT AND SUNDAY MORNING.

* WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS TO AROUND 30 MPH.

* IMPACTS...WIND CHILL VALUES POTENTIALLY REACHING DANGEROUS
  LEVELS. THE COMBINATION OF VERY LOW WIND CHILLS AND FRIGID AIR
  TEMPERATURES HAVE THE POTENTIAL TO RESULT IN FROZEN PIPES,
  FROSTBITE AND HYPOTHERMIA.

* TEMPERATURES...5 TO 12 DEGREES BELOW ZERO SATURDAY NIGHT AND
  EARLY SUNDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WATCH MEANS THERE IS THE POTENTIAL FOR A COMBINATION
OF BITTERLY COLD AIR AND STRONG WINDS TO CREATE DANGEROUSLY LOW
WIND CHILL VALUES. MONITOR THE LATEST FORECASTS AND WARNINGS FOR
UPDATES ON THIS SITUATION.

&&

$$

GORSE
1 follow-up statement
177 
WWUS41 KPHI 120842
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
342 AM EST FRI FEB 12 2016

...DANGEROUSLY COLD WIND CHILLS THIS WEEKEND...

NJZ001-PAZ054-055-122145-
/O.UPG.KPHI.WC.A.0001.160213T2300Z-160214T1400Z/
/O.NEW.KPHI.WC.W.0001.160213T1100Z-160214T1800Z/
SUSSEX-CARBON-MONROE-
INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG
342 AM EST FRI FEB 12 2016

...WIND CHILL WARNING IN EFFECT FROM 6 AM SATURDAY TO 1 PM EST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND
CHILL WARNING...WHICH IS IN EFFECT FROM 6 AM SATURDAY TO 1 PM EST
SUNDAY. THE WIND CHILL WATCH IS NO LONGER IN EFFECT.

* TIMING...WIND CHILLS WILL BEGIN TO DROP TO DANGEROUS LEVELS
  EARLY SATURDAY MORNING AND REMAIN LOW THROUGH SUNDAY MORNING.
  THE LOWEST WIND CHILLS ARE EXPECTED SATURDAY NIGHT.

* LOCATIONS...THE POCONOS AND FAR NORTHWESTERN NEW JERSEY.

* WIND CHILL VALUES...AS LOW AS 20 TO 30 DEGREES BELOW ZERO.

* WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* TEMPERATURES...RANGING FROM 10 BELOW TO 15 ABOVE ZERO.

* IMPACTS...WIND CHILL VALUES POTENTIALLY REACHING DANGEROUS
  LEVELS. THE COMBINATION OF VERY LOW WIND CHILLS AND FRIGID AIR
  TEMPERATURES HAVE THE POTENTIAL TO RESULT IN FROZEN PIPES...
  FROSTBITE AND HYPOTHERMIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 11, 6:35 PM ESTSpecial Weather StatementPHILehigh55 min
Feb 11, 9:09 AM ESTSpecial Weather StatementPHIBurlington51 min
Feb 11, 10:38 AM ESTSpecial Weather StatementPHIMercer52 min
Feb 11, 12:58 PM ESTGale WatchPHI15 hr

Nearby

Wind Chill Watches in Pennsylvania, 2016Wind Chill Watches in New Jersey, 2016Every wind chill watch in 2016

Sources

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