Alert archive / Pennsylvania / Snow Squall Warnings in 2019
Snow Squall Warning 5, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this snow squall warning at Dec 18, 2019, 1:29 PM EST for Carbon County, Monroe County, Pennsylvania; Sussex County, Warren County, New Jersey. It was in force for 61 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
- Dec 18, 2019, 1:29 PM EST (18:29 UTC)
- Expired
- Dec 18, 2019, 2:30 PM EST
- In force
- 61 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Sussex County, NJ, Warren County, NJ, Carbon County, PA, Monroe County, PA
The radar
The Binghamton radar (KBGM), 134 km from the middle of the area, began a volume at 18:28 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, 6.5 hours before the alert went out and 200 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 868 m above ground
- 0-6 km bulk shear
- 119 kt
- 0-1 km storm-relative helicity
- -352 m²/s²
- 0-3 km storm-relative helicity
- -46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
822
WWUS51 KPHI 181829
SQWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Burlington VT
129 PM EST Wed Dec 18 2019
NJC037-041-PAC025-089-181930-
/O.NEW.KPHI.SQ.W.0005.191218T1829Z-191218T1930Z/
Sussex NJ-Warren NJ-Carbon PA-Monroe PA-
129 PM EST Wed Dec 18 2019
The National Weather Service in Burlington has issued a
* Snow Squall Warning for...
Sussex County in northwestern New Jersey...
North central Warren County in northwestern New Jersey...
Central Carbon County in northeastern Pennsylvania...
Monroe County in northeastern Pennsylvania...
* Until 230 PM EST.
* At 129 PM EST, a dangerous snow squall was located along a line
extending from near Ellenville to near Blooming Grove to near Sugar
Notch, moving southeast at 30 mph.
HAZARD...Poor visibility in heavy snow and blowing snow. Wind
gusts up to 30 mph.
SOURCE...Radar indicated.
IMPACT...Dangerous life-threatening travel.
* This includes the following highways...
Interstate 80 in Pennsylvania between mile markers 277 and 309,
and between mile markers 312 and 313.
Northeast Extension between exits A87 and A95.
Interstate 380 in Pennsylvania between mile markers 0 and 12.
Locations impacted include...
Montague, Mount Pocono, East Stroudsburg, Tobyhanna, Franklin, Jim
Thorpe, Hamburg, Weatherly, Sussex, Branchville, High Point, Werry
Lake, Pocono Pines, Millbrook, Lake Harmony, Skytop, Vernon Valley,
Tannersville, Long Pond and Sun Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Reduce your speed and turn on headlights! During snow squalls, the
visibility may suddenly drop to near zero in whiteout conditions.
Slow Down! Rapid changes in visibility and road conditions are
expected with this dangerous snow squall. Be alert for sudden
whiteout conditions.
&&
LAT...LON 4120 7437 4114 7444 4087 7575 4096 7586
4101 7573 4106 7577 4110 7575 4113 7569
4113 7563 4122 7554 4123 7550 4125 7513
4115 7516 4114 7508 4108 7503 4116 7490
4132 7479 4136 7469
TIME...MOT...LOC 1829Z 293DEG 26KT 4167 7439 4137 7508 4120 7598
$$
DealThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 18, 2:23 PM EST | Snow Squall Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 67 min |
| Dec 18, 2:44 PM EST | Special Weather Statement | PHI | Delaware, Philadelphia | 46 min |
| Dec 18, 3:29 PM EST | Special Weather Statement | PHI | Northampton | 46 min |
| Dec 18, 3:44 PM EST | Special Weather Statement | PHI | Northampton | 46 min |
| Dec 18, 4:09 PM EST | Snow Squall Warning | PHI | Bucks | 36 min |
| Dec 18, 4:44 PM EST | Special Weather Statement | PHI | Bucks, Northampton | 61 min |
| Dec 18, 5:12 PM EST | Special Weather Statement | PHI | Berks, Delaware, Montgomery, Philadelphia | 93 min |
| Dec 18, 3:02 PM EST | Snow Squall Warning | PHI | Middlesex, Monmouth, Morris, Somerset | 43 min |
Nearby
Snow Squall Warnings in Pennsylvania, 2019Snow Squall Warnings in New Jersey, 2019Every snow squall warning in 2019
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.