Alert archive / New Jersey / Snow Squall Warnings in 2019
Snow Squall Warning 7, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this snow squall warning at Dec 18, 2019, 3:02 PM EST for 4 counties in New Jersey. It was in force for 43 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, 3:02 PM EST (20:02 UTC)
- Expired
- Dec 18, 2019, 3:45 PM EST
- In force
- 43 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 80 km from the middle of the area, began a volume at 20:02 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, 8.0 hours before the alert went out and 126 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.
121
WWUS51 KPHI 182002
SQWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Mount Holly NJ
302 PM EST Wed Dec 18 2019
NJC023-025-027-035-182045-
/O.NEW.KPHI.SQ.W.0007.191218T2002Z-191218T2045Z/
Morris NJ-Somerset NJ-Monmouth NJ-Middlesex NJ-
302 PM EST Wed Dec 18 2019
The National Weather Service in Mount Holly NJ has issued a
* Snow Squall Warning for...
Morris County in northern New Jersey...
Northeastern Somerset County in northern New Jersey...
North central Monmouth County in central New Jersey...
Northeastern Middlesex County in northern New Jersey...
* Until 345 PM EST.
* At 302 PM EST, a dangerous snow squall was located along a line
extending from near Pomona to near Succasunna, moving southeast at
35 mph.
HAZARD...Snow and blowing snow. Wind gusts up to 30 mph.
SOURCE...Radar indicated.
IMPACT...Expect hazardous road conditions.
* This includes the following highways...
Garden State Parkway between mile markers 116 and 134.
Interstate 287 in New Jersey between mile markers 0 and 14, and
between mile markers 22 and 54.
Interstate 78 in New Jersey between mile markers 32 and 42.
Interstate 80 in New Jersey between mile markers 28 and 48.
New Jersey Turnpike between exits 10 and 13.
Locations impacted include...
New Brunswick, Perth Amboy, Morristown, Somerset, Edison, Old Bridge,
East Brunswick, Sayreville, Carteret, Dover, Madison, Middlesex,
Florham Park, East Hanover, Lincoln Park, Bound Brook, Kinnelon,
Keansburg, Chatham and Matawan.
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 4030 7430 4082 7481 4105 7445 4102 7443
4100 7429 4090 7427 4091 7433 4083 7433
4076 7438 4075 7436 4067 7446 4065 7440
4060 7446 4060 7421 4056 7421 4050 7428
4047 7427 4044 7420 4046 7418 4044 7408
TIME...MOT...LOC 2002Z 315DEG 28KT 4123 7405 4083 7469
$$
DealThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 18, 1:29 PM EST | Snow Squall Warning | PHI | Sussex, Warren | 61 min |
| Dec 18, 2:23 PM EST | Snow Squall Warning | PHI | Morris, Sussex, Warren | 67 min |
| Dec 18, 2:44 PM EST | Special Weather Statement | PHI | Camden, Gloucester | 46 min |
| Dec 18, 3:29 PM EST | Special Weather Statement | PHI | Hunterdon, Somerset, Warren | 46 min |
| Dec 18, 3:44 PM EST | Special Weather Statement | PHI | Hunterdon, Morris, Somerset, Warren | 46 min |
| Dec 18, 4:09 PM EST | Snow Squall Warning | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset, Warren | 36 min |
| Dec 18, 4:44 PM EST | Special Weather Statement | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Somerset | 61 min |
| Dec 18, 5:12 PM EST | Special Weather Statement | PHI | Burlington, Camden, Ocean | 93 min |
Nearby
Snow 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.