Alert archive / New York / Mesoscale Discussions in 2008

Mesoscale Discussion 2392

November 15, 200810 states

The Storm Prediction Center issued this mesoscale discussion at Nov 15, 2008, 6:15 PM EST for 10 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Nov 15, 2008, 6:15 PM EST (23:15 UTC)
Expired: Nov 15, 2008, 8:15 PM EST
In force: 2 hr
Issued by: the Storm Prediction Center

All 89 counties

Kent County, DE, Sussex County, DE, Berkshire County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Worcester County, MA, Somerset County, MD, Wicomico County, MD, Worcester County, MD, Beaufort County, NC, Bertie County, NC, Camden County, NC, Carteret County, NC, Chowan County, NC, Craven County, NC, Currituck County, NC, Dare County, NC, Gates County, NC, Hyde County, NC, Jones County, NC, Martin County, NC, Onslow County, NC, Pamlico County, NC, Pasquotank County, NC, Pender County, NC, Perquimans County, NC, Tyrrell County, NC, Washington County, NC, Cheshire County, NH, Hillsborough County, NH, Atlantic County, NJ, Bergen County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Essex County, NJ, Gloucester County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Passaic County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Albany County, NY, Bronx County, NY, Columbia County, NY, Dutchess County, NY, Greene County, NY, Kings County, NY, Montgomery County, NY, Nassau County, NY, New York County, NY, Orange County, NY, Putnam County, NY, Queens County, NY, Rensselaer County, NY, Richmond County, NY, Rockland County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Suffolk County, NY, Sullivan County, NY, Ulster County, NY, Westchester County, NY, Kent County, RI, Providence County, RI, Washington County, RI, Accomack County, VA, City of Chesapeake, VA, City of Hampton, VA, City of Norfolk, VA, City of Poquoson, VA, City of Portsmouth, VA, City of Suffolk, VA, City of Virginia Beach, VA, Mathews County, VA, Northampton County, VA, York County, VA, Bennington County, VT, Windham County, VT

The radar

The Dover AFB radar (KDOX), 61 km from the middle of the area, began a volume at 23:18 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Tornado Watch 937Nov 15, 6:50 PM EST

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 11.3 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: 13 J/kg
Mixed-layer CIN: -110 J/kg
Mixed-layer LCL: 443 m above ground
0-6 km bulk shear: 77 kt
0-1 km storm-relative helicity: 330 m²/s²
0-3 km storm-relative helicity: 430 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!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
Nov 15, 2:56 PM EST	Tornado Watch	SPC	Northwest Hills Planning Region	6 hr
Nov 15, 6:55 PM EST	Tornado Watch	SPC	Greater Bridgeport Planning Region, Capitol Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region, Northeastern Connecticut Planning Region	3 hr
Nov 15, 11:07 AM EST	Mesoscale Discussion	SPC	Kent, Sussex	53 min
Nov 15, 12:22 PM EST	Tornado Watch	SPC	Kent, New Castle, Sussex	7 hr
Nov 15, 1:47 PM EST	Mesoscale Discussion	SPC	Bergen, Essex, Hudson, Hunterdon, Morris, Passaic and 4 more	58 min
Nov 14, 10:25 PM EST	Tornado Watch	SPC	Bladen, Brunswick, Columbus, New Hanover, Pender, Robeson	8 hr
Nov 14, 11:53 PM EST	Mesoscale Discussion	SPC	Beaufort, Bertie, Bladen, Brunswick, Camden, Carteret and 33 more	2 hr
Nov 15, 12:24 AM EST	Tornado Watch	SPC	Beaufort, Bertie, Camden, Carteret, Chatham, Chowan and 41 more	9 hr
Nov 15, 3:10 AM EST	Mesoscale Discussion	SPC	Anson, Beaufort, Bertie, Bladen, Brunswick, Camden and 40 more	95 min
Nov 15, 4:10 AM EST	Mesoscale Discussion	SPC	Beaufort, Bertie, Camden, Carteret, Chowan, Craven and 26 more	65 min
Nov 15, 7:09 AM EST	Mesoscale Discussion	SPC	Beaufort, Bertie, Camden, Carteret, Chowan, Craven and 14 more	66 min
Nov 15, 12:29 PM EST	Mesoscale Discussion	SPC	Beaufort, Bertie, Bladen, Brunswick, Columbus, Craven and 27 more	61 min
Nov 15, 1:25 PM EST	Tornado Watch	SPC	Beaufort, Bertie, Camden, Carteret, Chowan, Craven and 33 more	7 hr

Nearby

Mesoscale Discussions in New York, 2008 Mesoscale Discussions in New Jersey, 2008 Mesoscale Discussions in North Carolina, 2008 Every mesoscale discussion in 2008

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.