Alert archive / Florida / Mesoscale Discussions in 2008
Mesoscale Discussion 219
The Storm Prediction Center issued this mesoscale discussion at Feb 12, 2008, 9:39 PM EST for 31 counties in Florida. It was in force for 96 min.
The area
The outline as issued.
The facts
- Issued
- Feb 12, 2008, 9:39 PM EST (02:39 UTC)
- Expired
- Feb 12, 2008, 11:15 PM EST
- In force
- 96 min
- Issued by
- the Storm Prediction Center
All 31 counties
Alachua County, FL, Broward County, FL, Charlotte County, FL, Citrus County, FL, Collier County, FL, DeSoto County, FL, Flagler County, FL, Glades County, FL, Hardee County, FL, Hendry County, FL, Hernando County, FL, Highlands County, FL, Hillsborough County, FL, Indian River County, FL, Lake County, FL, Manatee County, FL, Marion County, FL, Martin County, FL, Miami-Dade County, FL, Monroe County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Palm Beach County, FL, Pasco County, FL, Polk County, FL, Putnam County, FL, Saint Lucie County, FL, Seminole County, FL, Sumter County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 92 km from the middle of the area, began a volume at 02:39 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
Miami, FL (KMFL), launched 00:00Z, 2.7 hours before the alert went out and 233 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
- 810 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 772 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 287 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 4.8
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 |
|---|---|---|---|---|
| Feb 12, 7:41 PM EST | Mesoscale Discussion | SPC | Alachua, Bradford, Brevard, Broward, Charlotte, Citrus and 34 more | 2 hr |
| Feb 12, 8:11 PM EST | Mesoscale Discussion | SPC | Calhoun, Gadsden, Holmes, Jackson, Jefferson, Leon and 6 more | 64 min |
| Feb 12, 8:30 PM EST | Tornado Watch | SPC | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 11 more | 4 hr |
| Feb 12, 10:20 PM EST | Tornado Watch | SPC | Brevard, Broward, Charlotte, Citrus, Collier, DeSoto and 30 more | 9 hr |
| Feb 12, 11:25 PM EST | Mesoscale Discussion | SPC | Gadsden, Jefferson, Leon, Madison, Taylor, Wakulla | 95 min |
| Feb 13, 3:12 AM EST | Mesoscale Discussion | SPC | Alachua, Brevard, Broward, Charlotte, Citrus, Collier and 30 more | 93 min |
| Feb 13, 8:19 AM EST | Mesoscale Discussion | SPC | Broward, Charlotte, Collier, Glades, Hendry, Lee and 4 more | 56 min |
| Feb 13, 10:52 AM EST | Mesoscale Discussion | SPC | Broward, Collier, Glades, Hendry, Martin, Miami-Dade and 4 more | 53 min |
| Feb 13, 11:44 AM EST | Severe Thunderstorm Watch | SPC | Broward, Collier, Miami-Dade, Monroe, Palm Beach | 4 hr |
Nearby
Mesoscale Discussions in Florida, 2008Every 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.