Alert archive / New York / Mesoscale Discussions in 2003
Mesoscale Discussion 1941
The Storm Prediction Center issued this mesoscale discussion at Jul 21, 2003, 2:46 PM EDT for Berkshire County, Franklin County, Hampshire County, Massachusetts; 11 counties in New York; Bennington County, Vermont. It was in force for 119 min.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2003, 2:46 PM EDT (18:46 UTC)
- Expired
- Jul 21, 2003, 4:45 PM EDT
- In force
- 119 min
- Issued by
- the Storm Prediction Center
Counties Berkshire County, MA, Franklin County, MA, Hampshire County, MA, Albany County, NY, Columbia County, NY, Delaware County, NY, Greene County, NY, Montgomery County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Ulster County, NY, Bennington County, VT
The radar
The Albany radar (KENX), 34 km from the middle of the area, began a volume at 18:50 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.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 6.8 hours before the alert went out and 55 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
- 159 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 906 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 178 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
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 |
|---|---|---|---|---|
| Jul 21, 3:35 PM EDT | Severe Thunderstorm Watch | SPC | Berkshire | 6 hr |
| Jul 21, 7:51 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 84 min |
| Jul 21, 1:15 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Chemung, Schuyler, Steuben and 2 more | 2 hr |
| Jul 21, 1:40 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Broome, Chemung, Cortland, Schuyler, Steuben and 2 more | 6 hr |
| Jul 21, 3:51 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Chemung, Cortland, Schuyler, Steuben and 2 more | 114 min |
| Jul 21, 6:30 PM EDT | Severe Thunderstorm Watch | SPC | Bronx, Kings, Nassau, New York, Orange, Putnam and 4 more | 5 hr |
Nearby
Mesoscale Discussions in New York, 2003Mesoscale Discussions in Massachusetts, 2003Mesoscale Discussions in Vermont, 2003Every mesoscale discussion in 2003
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.