Alert archive / Florida / Mesoscale Discussions in 2003
Mesoscale Discussion 207
The Storm Prediction Center issued this mesoscale discussion at Mar 7, 2003, 11:30 AM EST for 25 counties in Florida. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 7, 2003, 11:30 AM EST (16:30 UTC)
- Expired
- Mar 7, 2003, 1:30 PM EST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 25 counties
Alachua County, FL, Bradford County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Flagler County, FL, Gilchrist County, FL, Hernando County, FL, Lafayette County, FL, Lake County, FL, Levy County, FL, Marion County, FL, Orange County, FL, Pasco County, FL, Pinellas County, FL, Putnam County, FL, Saint Johns County, FL, Seminole County, FL, Sumter County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Volusia County, FL
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, 4.5 hours before the alert went out and 188 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 697 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 173 m²/s²
- 0-3 km storm-relative helicity
- 243 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 |
|---|---|---|---|---|
| Mar 7, 12:00 PM EST | Severe Thunderstorm Watch | SPC | Alachua, Bradford, Brevard, Citrus, Clay, DeSoto and 24 more | 6 hr |
| Mar 7, 2:18 PM EST | Mesoscale Discussion | SPC | Alachua, Bradford, Brevard, Citrus, Clay, Dixie and 23 more | 117 min |
Nearby
Mesoscale Discussions in Florida, 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.