Alert archive / Florida / Mesoscale Discussions in 2012
Mesoscale Discussion 1262
The Storm Prediction Center issued this mesoscale discussion at Jun 24, 2012, 7:01 PM EDT for 23 counties in Florida. It was in force for 59 min.
The area
The outline as issued.
The facts
- Issued
- Jun 24, 2012, 7:01 PM EDT (23:01 UTC)
- Expired
- Jun 24, 2012, 8:00 PM EDT
- In force
- 59 min
- Issued by
- the Storm Prediction Center
All 23 counties
Charlotte County, FL, Citrus County, FL, DeSoto County, FL, Dixie County, FL, Gilchrist County, FL, Glades County, FL, Hardee County, FL, Hendry County, FL, Hernando County, FL, Highlands County, FL, Hillsborough County, FL, Lafayette County, FL, Lake County, FL, Levy County, FL, Manatee County, FL, Marion County, FL, Okeechobee County, FL, Pasco County, FL, Polk County, FL, Sarasota County, FL, Sumter County, FL, Taylor County, FL, Wakulla County, FL
The radar
The Tampa radar (KTBW), 147 km from the middle of the area, began a volume at 23:01 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
Jacksonville, FL (KJAX), launched 12:00Z, 11.0 hours before the alert went out and 240 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
- 2447 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 459 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -46 m²/s²
- 0-3 km storm-relative helicity
- -18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jun 23, 8:09 PM EDT | Mesoscale Discussion | SPC | Charlotte, Collier, Lee, Manatee, Pinellas, Sarasota | 66 min |
| Jun 24, 11:02 AM EDT | Mesoscale Discussion | SPC | Broward, Charlotte, Citrus, Collier, DeSoto, Dixie and 16 more | 2 hr |
| Jun 24, 11:47 AM EDT | Tornado Watch | SPC | Broward, Charlotte, Citrus, Collier, DeSoto, Glades and 16 more | 8 hr |
| Jun 24, 4:36 PM EDT | Mesoscale Discussion | SPC | Broward, Charlotte, Citrus, Collier, DeSoto, Glades and 15 more | 114 min |
| Jun 24, 7:46 PM EDT | Tornado Watch | SPC | Alachua, Brevard, Charlotte, Citrus, Collier, DeSoto and 28 more | 9 hr |
Nearby
Mesoscale Discussions in Florida, 2012Every mesoscale discussion in 2012
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.