Alert archive / Florida / Mesoscale Discussions in 2007
Mesoscale Discussion 148
The Storm Prediction Center issued this mesoscale discussion at Feb 13, 2007, 8:52 AM CST for 14 counties in Florida. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- Feb 13, 2007, 8:52 AM CST (14:52 UTC)
- Expired
- Feb 13, 2007, 9:45 AM CST
- In force
- 53 min
- Issued by
- the Storm Prediction Center
Counties Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL
The radar
The Tallahassee radar (KTLH), 72 km from the middle of the area, began a volume at 14:51 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
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 2.9 hours before the alert went out and 75 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
- 10 J/kg
- Mixed-layer CIN
- -254 J/kg
- Mixed-layer LCL
- 731 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 13, 2:43 AM CST | Tornado Watch | SPC | Escambia, Okaloosa, Santa Rosa | 10 hr |
| Feb 13, 7:24 AM CST | Mesoscale Discussion | SPC | Escambia, Santa Rosa | 96 min |
| Feb 13, 9:07 AM CST | Tornado Watch | SPC | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 11 more | 7 hr |
| Feb 13, 10:17 AM CST | Mesoscale Discussion | SPC | Charlotte, DeSoto, Hardee, Hernando, Hillsborough, Lee and 5 more | 88 min |
| Feb 13, 11:54 AM CST | Severe Thunderstorm Watch | SPC | Brevard, Charlotte, Citrus, DeSoto, Flagler, Glades and 25 more | 5 hr |
| Feb 13, 12:08 PM CST | Mesoscale Discussion | SPC | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 11 more | 67 min |
| Feb 13, 2:15 PM CST | Mesoscale Discussion | SPC | Brevard, Flagler, Glades, Hardee, Highlands, Indian River and 8 more | 60 min |
| Feb 13, 2:34 PM CST | Severe Thunderstorm Watch | SPC | Alachua, Baker, Bradford, Clay, Columbia, Duval and 5 more | 5 hr |
Nearby
Mesoscale Discussions in Florida, 2007Every mesoscale discussion in 2007
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.