Alert archive / Pennsylvania / Winter Weather Advisories in 2022

Winter Weather Advisory 8, NWS Philadelphia/Mount Holly

January 28, 2022Sussex County, Warren County, New Jersey; 6 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this winter weather advisory at Jan 28, 2022, 3:23 AM EST for Sussex County, Warren County, New Jersey; 6 counties in Pennsylvania. It took effect at Jan 28, 2022, 7:00 PM EST. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued
Jan 28, 2022, 3:23 AM EST (08:23 UTC)
In effect from
Jan 28, 2022, 7:00 PM EST
Expired
Jan 29, 2022, 2:00 PM EST
In force
19 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Chester County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 103 km from the middle of the area, began a volume at 08:23 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, 8.4 hours before the alert went out and 212 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 00:00Z on 2022-01-28Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2022-01-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 square meters per square second.193958Sfc1 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
959 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
161 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 Jan 28, 12:51 AM EST, 2 hours 32 minutes earlier.

Area forecast discussion, Jan 28, 12:51 AM EST, 2 hours 32 minutes before
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Hazardous weather outlook, Jan 27, 11:03 PM EST, 4 hours 20 minutes before
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  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jan 28, 2:54 AM ESTCoastal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Monmouth, Ocean30 hr
Jan 28, 3:23 AM ESTBlizzard WarningPHIAtlantic, Burlington, Cape May, Monmouth, Ocean37 hr
Jan 28, 3:23 AM ESTStorm WarningPHI38 hr
Jan 28, 3:23 AM ESTHeavy Freezing Spray AdvisoryPHI57 hr
Jan 28, 2:11 PM ESTCoastal Flood WarningPHICape May18 hr
Jan 28, 3:23 AM ESTWind Chill AdvisoryPHICarbon, Monroe54 hr

Nearby

Winter Weather Advisories in Pennsylvania, 2022Winter Weather Advisories in New Jersey, 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.