Alert archive / Florida / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 78
The Storm Prediction Center issued this severe thunderstorm watch at Mar 27, 2003, 11:00 AM EST for 40 counties in Florida. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 27, 2003, 11:00 AM EST (16:00 UTC)
- Expired
- Mar 27, 2003, 5:00 PM EST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 40 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Brevard County, FL, Charlotte County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, DeSoto County, FL, Duval County, FL, Flagler County, FL, Gilchrist County, FL, Glades County, FL, Hardee County, FL, Hendry County, FL, Hernando County, FL, Highlands County, FL, Hillsborough County, FL, Indian River County, FL, Lafayette County, FL, Lake County, FL, Lee County, FL, Levy County, FL, Manatee County, FL, Marion County, FL, Martin 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 Johns County, FL, Saint Lucie County, FL, Seminole County, FL, Sumter County, FL, Suwannee County, FL, Union County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 115 km from the middle of the area, began a volume at 16:00 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.
Warnings issued inside it
26 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 11:08 AM EST | Severe Thunderstorm Warning | TBW | DeSoto | 52 min |
| Mar 27, 12:10 PM EST | Severe Thunderstorm Warning | TBW | Lee | 65 min |
| Mar 27, 12:22 PM EST | Severe Thunderstorm Warning | JAX | Marion | 38 min |
| Mar 27, 12:51 PM EST | Severe Thunderstorm Warning | JAX | Alachua | 39 min |
| Mar 27, 1:00 PM EST | Severe Thunderstorm Warning | TBW | Hillsborough | 30 min |
| Mar 27, 1:04 PM EST | Severe Thunderstorm Warning | TBW | Levy | 31 min |
| Mar 27, 1:20 PM EST | Severe Thunderstorm Warning | TBW | Pasco | 40 min |
| Mar 27, 1:29 PM EST | Severe Thunderstorm Warning | JAX | Marion | 46 min |
| Mar 27, 1:45 PM EST | Severe Thunderstorm Warning | TBW | Citrus | 30 min |
| Mar 27, 2:01 PM EST | Severe Thunderstorm Warning | TBW | Hernando | 29 min |
| Mar 27, 2:08 PM EST | Severe Thunderstorm Warning | TBW | Levy | 37 min |
| Mar 27, 2:19 PM EST | Severe Thunderstorm Warning | TBW | Citrus, Sumter | 41 min |
| Mar 27, 2:20 PM EST | Severe Thunderstorm Warning | TBW | Hernando, Pasco | 25 min |
| Mar 27, 2:32 PM EST | Severe Thunderstorm Warning | JAX | Alachua | 28 min |
| Mar 27, 2:37 PM EST | Tornado Warning | MFL | Hendry, Palm Beach | 53 min |
| Mar 27, 2:37 PM EST | Tornado Warning | TBW | Lee | 23 min |
| Mar 27, 2:40 PM EST | Tornado Warning | MFL | Hendry, Palm Beach | 50 min |
| Mar 27, 2:42 PM EST | Tornado Warning | TBW | Levy | 48 min |
| Mar 27, 2:50 PM EST | Tornado Warning | MFL | Hendry | 55 min |
| Mar 27, 2:52 PM EST | Severe Thunderstorm Warning | JAX | Putnam | 38 min |
| Mar 27, 2:58 PM EST | Severe Thunderstorm Warning | TBW | Hernando, Pasco | 47 min |
| Mar 27, 3:01 PM EST | Severe Thunderstorm Warning | JAX | Marion | 44 min |
| Mar 27, 3:08 PM EST | Tornado Warning | TBW | Pasco | 22 min |
| Mar 27, 3:27 PM EST | Tornado Warning | MFL | Palm Beach | 63 min |
| Mar 27, 4:19 PM EST | Tornado Warning | MFL | Palm Beach | 56 min |
| Mar 27, 4:37 PM EST | Severe Thunderstorm Warning | TBW | Pasco | 38 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 4.0 hours before the alert went out and 154 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
- 845 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 820 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 166 m²/s²
- 0-3 km storm-relative helicity
- 216 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 10:27 AM EST | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Brevard, Broward, Charlotte and 39 more | 2 hr |
| Mar 27, 1:36 PM EST | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Brevard, Charlotte, Citrus and 38 more | 84 min |
| Mar 27, 2:15 PM EST | Tornado Watch | SPC | Broward, Collier, Hendry, Miami-Dade, Monroe, Palm Beach | 5 hr |
| Mar 27, 4:10 PM EST | Mesoscale Discussion | SPC | Broward, Collier, Hendry, Miami-Dade, Monroe, Palm Beach | 95 min |
Nearby
Severe Thunderstorm Watches in Florida, 2003Every severe thunderstorm watch 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; radar from the NEXRAD Level II archive.