Alert archive / Florida / Mesoscale Discussions in 2008
Mesoscale Discussion 309
The Storm Prediction Center issued this mesoscale discussion at Feb 26, 2008, 2:41 PM EST for 28 counties in Florida. It was in force for 94 min.
The area
The outline as issued.
The facts
- Issued
- Feb 26, 2008, 2:41 PM EST (19:41 UTC)
- Expired
- Feb 26, 2008, 4:15 PM EST
- In force
- 94 min
- Issued by
- the Storm Prediction Center
All 28 counties
Brevard County, FL, Broward County, FL, Charlotte County, FL, Citrus County, FL, DeSoto 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, Martin County, FL, Miami-Dade County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Palm Beach County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Saint Lucie County, FL, Sarasota County, FL, Seminole County, FL, Sumter County, FL, Volusia County, FL
The radar
The Tampa radar (KTBW), 84 km from the middle of the area, began a volume at 19:43 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
Tampa Bay, FL (KTBW), launched 12:00Z, 7.7 hours before the alert went out and 84 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
- 734 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 573 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 165 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.2
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 26, 6:12 AM EST | Severe Thunderstorm Watch | SPC | Escambia, Okaloosa, Santa Rosa | 4 hr |
| Feb 26, 7:50 AM EST | Mesoscale Discussion | SPC | Bay, Calhoun, Gadsden, Holmes, Jackson, Okaloosa and 2 more | 85 min |
| Feb 26, 8:39 AM EST | Severe Thunderstorm Watch | SPC | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 11 more | 6 hr |
| Feb 26, 10:22 AM EST | Mesoscale Discussion | SPC | Baker, Bay, Calhoun, Columbia, Gadsden, Gulf and 13 more | 83 min |
| Feb 26, 10:35 AM EST | Mesoscale Discussion | SPC | Baker, Bay, Calhoun, Columbia, Gadsden, Gulf and 13 more | 85 min |
| Feb 26, 11:00 AM EST | Tornado Watch | SPC | Alachua, Baker, Bradford, Clay, Columbia, Dixie and 18 more | 9 hr |
| Feb 26, 2:02 PM EST | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Clay, Columbia, Dixie and 20 more | 88 min |
| Feb 26, 3:41 PM EST | Tornado Watch | SPC | Brevard, Citrus, DeSoto, Hardee, Hernando, Highlands and 14 more | 5 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.