Alert archive / Pennsylvania / Winter Weather Advisories in 2019

Winter Weather Advisory 12, NWS Philadelphia/Mount Holly

February 23, 2019Sussex County, New Jersey; Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this winter weather advisory at Feb 23, 2019, 6:02 PM EST for Sussex County, New Jersey; Carbon County, Monroe County, Pennsylvania. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Feb 23, 2019, 6:02 PM EST (23:02 UTC)
Expired: Feb 24, 2019, 4:00 AM EST
In force: 10 hr
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 23:02 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

Albany, NY (KALY), launched 12:00Z, 11.0 hours before the alert went out and 218 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1057 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 125 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 23, 3:56 PM EST, 2 hours 6 minutes earlier.

Area forecast discussion, Feb 23, 3:56 PM EST, 2 hours 6 minutes before

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Hazardous weather outlook, Feb 23, 4:09 PM EST, 1 hour 53 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 23, 4:02 AM EST	High Wind Watch	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	23 hr
Feb 23, 4:03 AM EST	Gale Watch	PHI		12 hr
Feb 23, 4:03 AM EST	Storm Watch	PHI		36 hr
Feb 23, 6:13 AM EST	Small Craft Advisory	PHI		36 hr
Feb 23, 2:58 PM EST	High Wind Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	48 hr
Feb 23, 3:39 PM EST	Gale Warning	PHI		36 hr

Nearby

Winter Weather Advisories in Pennsylvania, 2019 Winter Weather Advisories in New Jersey, 2019 Every winter weather advisory 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.