Alert archive / Pennsylvania / Winter Weather Advisories in 2022
Winter Weather Advisory 12, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this winter weather advisory at Feb 24, 2022, 3:38 AM EST for 7 counties in New Jersey; 10 counties in Pennsylvania; New Castle County, Delaware. It took effect at Feb 24, 2022, 7:00 PM EST. It was in force for 17 hr.
The area
The counties it named.
The facts
- Issued
- Feb 24, 2022, 3:38 AM EST (08:38 UTC)
- In effect from
- Feb 24, 2022, 7:00 PM EST
- Expired
- Feb 25, 2022, 12:27 PM EST
- In force
- 17 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties New Castle County, DE, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 87 km from the middle of the area, began a volume at 08:36 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 00:00Z, 8.6 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
- 2124 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this winter weather advisory went out at Feb 24, 1:05 AM EST, 2 hours 33 minutes earlier.
Area forecast discussion, Feb 24, 1:05 AM EST, 2 hours 33 minutes before
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</html>The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 6:45 AM EST | Small Craft Advisory | PHI | 47 hr | |
| Feb 24, 3:17 PM EST | Small Craft Advisory | PHI | 7 hr |
Nearby
Winter Weather Advisories in Pennsylvania, 2022Winter Weather Advisories in New Jersey, 2022Winter Weather Advisories in Delaware, 2022Every winter weather advisory in 2022
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.