Alert archive / Pennsylvania / Snow Squall Warnings in 2024

Snow Squall Warning 4, NWS Philadelphia/Mount Holly

January 14, 2024Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this snow squall warning at Jan 14, 2024, 11:30 AM EST for Carbon County, Monroe County, Pennsylvania. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jan 14, 2024, 11:30 AM EST (16:30 UTC)
Expired
Jan 14, 2024, 12:30 PM EST
In force
60 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Damage threat
Significant

Counties Carbon County, PA, Monroe County, PA

The radar

The Binghamton radar (KBGM), 137 km from the middle of the area, began a volume at 16:31 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

Brookhaven, NY (KOKX), launched 12:00Z, 4.5 hours before the alert went out and 217 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, Brookhaven, NY at 12:00Z on 2024-01-14Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2024-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.1939587897117136156175Sfc1 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
1372 m above ground
0-6 km bulk shear
84 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

004 
WWUS51 KPHI 141630
SQWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Mount Holly NJ
1130 AM EST Sun Jan 14 2024

PAC025-089-141730-
/O.NEW.KPHI.SQ.W.0004.240114T1630Z-240114T1730Z/
Carbon PA-Monroe PA-
1130 AM EST Sun Jan 14 2024

The National Weather Service in Mount Holly NJ has issued a

* Snow Squall Warning for...
  Carbon County in northeastern Pennsylvania...
  Monroe County in northeastern Pennsylvania...

* Until 1230 PM EST.

* At 1130 AM EST, a dangerous snow squall was located along a line
  extending from near Honesdale to near Mcadoo, moving east at 45
  mph.

  HAZARD...Intense bursts of heavy snow and gusty winds leading to 
           blowing snow and rapidly falling visibility. Wind gusts 
           greater than 35 mph.

  SOURCE...Radar and webcams.

  IMPACT...Dangerous and life-threatening travel conditions are 
           expected to develop rapidly in the warning area.

This includes the following highways...
 Northeast Extension between mile markers 72 and 97.
 Interstate 80 in Pennsylvania between mile markers 277 and 314.
 Interstate 80 in New Jersey near mile marker 0.
 Interstate 380 in Pennsylvania between mile markers 0 and 13.

Locations impacted include...
Lehighton, Mount Pocono, East Stroudsburg, Tobyhanna, Palmerton, Jim
Thorpe, Nesquehoning, Weatherly, Stormville, Werry Lake, Pocono
Pines, Lake Harmony, Skytop, Tannersville, Long Pond, Kresgeville,
Sun Valley, Reeders, Beltzville State Park, and Saylorsburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Consider avoiding or delaying travel until the snow squall passes
your location. If you must travel, use extra caution and allow extra
time. Rapid changes in visibility and slick road conditions may lead
to accidents.

Serious injuries and deaths may result from people exiting their
vehicles during a snow squall. Drivers may not be able to see you or
to stop! If stopped on the roadway or involved in an accident,
quickly exit your vehicle move as far away from the roadway as
possible ONLY when it is safe to do so. Do not stand along or near
the roadway, since approaching vehicles may be unable to maintain
control.

&&

LAT...LON 4115 7515 4114 7509 4108 7503 4109 7497
      4100 7512 4095 7515 4081 7551 4078 7567
      4073 7576 4091 7599 4101 7573 4105 7577
      4108 7577 4113 7569 4112 7564 4123 7554
      4125 7513
TIME...MOT...LOC 1630Z 262DEG 39KT 4150 7527 4093 7601 

SNOW SQUALL...OBSERVED
SNOW SQUALL IMPACT...SIGNIFICANT 

$$

MJL
1 follow-up statement
404 
WWUS51 KPHI 141725
SQWPHI

Snow Squall Warning
National Weather Service Mount Holly NJ
1225 PM EST Sun Jan 14 2024

PAC025-089-141734-
/O.EXP.KPHI.SQ.W.0004.000000T0000Z-240114T1730Z/
Carbon PA-Monroe PA-
1225 PM EST Sun Jan 14 2024

...THE SNOW SQUALL WARNING FOR CARBON AND MONROE COUNTIES WILL EXPIRE
AT 1230 PM EST...

The snow squall that prompted the warning has exited the area.
Therefore, the snow squall warning will be allowed to expire. Areas 
of blowing snow will continue to make travel difficult. A Snow 
Squall Warning remains in effect for eastern Monroe County.

LAT...LON 4115 7515 4114 7509 4108 7503 4109 7497
      4100 7512 4095 7515 4081 7551 4078 7567
      4073 7576 4091 7599 4101 7573 4105 7577
      4108 7577 4113 7569 4112 7564 4123 7554
      4125 7513
TIME...MOT...LOC 1724Z 262DEG 39KT 4157 7454 4101 7528 

$$

MJL

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 14, 2:48 AM ESTWind AdvisoryPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more15 hr
Jan 14, 10:28 AM ESTSnow Squall Warning Significant damage threatPHICarbon, Monroe62 min
Jan 14, 10:43 AM ESTSnow Squall WarningPHIBerks47 min
Jan 14, 11:07 AM ESTSnow Squall WarningPHIBerks, Bucks, Chester, Lehigh, Montgomery, Northampton38 min
Jan 14, 11:42 AM ESTSnow Squall Warning Significant damage threatPHIBerks, Chester, Montgomery48 min
Jan 14, 11:44 AM ESTSnow Squall WarningPHIBucks61 min
Jan 14, 11:57 AM ESTSnow Squall WarningPHIChester48 min
Jan 14, 12:17 PM ESTSnow Squall WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia28 min
Jan 14, 12:24 PM ESTSnow Squall Warning Significant damage threatPHIMonroe28 min
Jan 14, 12:28 PM ESTSnow Squall WarningPHIChester20 min

Nearby

Snow Squall Warnings in Pennsylvania, 2024Every snow squall warning in 2024

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.