Alert archive / Pennsylvania / Mesoscale Discussions in 2022

Mesoscale Discussion 50

January 8, 20224 counties in New York; 13 counties in Pennsylvania

The Storm Prediction Center issued this mesoscale discussion at Jan 8, 2022, 10:37 PM EST for 4 counties in New York; 13 counties in Pennsylvania. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Jan 8, 2022, 10:37 PM EST (03:37 UTC)
Expired: Jan 9, 2022, 2:30 AM EST
In force: 4 hr
Issued by: the Storm Prediction Center
Concerning: Winter mixed precipitation

Counties Allegany County, NY, Cattaraugus County, NY, Chautauqua County, NY, Steuben County, NY, Cameron County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Crawford County, PA, Elk County, PA, Forest County, PA, Jefferson County, PA, McKean County, PA, Potter County, PA, Tioga County, PA, Venango County, PA, Warren County, PA

The radar

The Buffalo radar (KBUF), 113 km from the middle of the area, began a volume at 03:38 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 3.6 hours before the alert went out and 111 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: 2249 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 457 m²/s²
0-3 km storm-relative helicity: 553 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 9, 2:35 AM EST	Mesoscale Discussion	SPC	Broome, Cayuga, Chemung, Chenango, Cortland, Delaware and 11 more	5 hr
Jan 9, 5:52 AM EST	Mesoscale Discussion	SPC	Albany, Columbia, Delaware, Dutchess, Fulton, Greene and 11 more	4 hr

Nearby

Mesoscale Discussions in Pennsylvania, 2022 Mesoscale Discussions in New York, 2022 Every mesoscale discussion 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.