Alert archive / Florida / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 220
The Storm Prediction Center issued this severe thunderstorm watch at May 4, 2005, 1:30 PM EDT for 33 counties in Florida. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- May 4, 2005, 1:30 PM EDT (17:30 UTC)
- Expired
- May 4, 2005, 8:00 PM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 33 counties
Brevard County, FL, Broward County, FL, Charlotte County, FL, Citrus County, FL, Collier County, FL, DeSoto County, FL, Flagler 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, Lee County, FL, Manatee County, FL, Marion County, FL, Martin County, FL, Miami-Dade County, FL, Monroe 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 Melbourne radar (KMLB), 80 km from the middle of the area, began a volume at 17:32 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
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 2:23 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 67 min |
| May 4, 2:42 PM EDT | Severe Thunderstorm Warning | MFL | Broward | 66 min |
| May 4, 6:29 PM EDT | Severe Thunderstorm Warning | MFL | Miami-Dade | 62 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, 5.5 hours before the alert went out and 108 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
- 1306 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 636 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 183 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.7
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 6:30 AM EDT | Mesoscale Discussion | SPC | Alachua, Bradford, Brevard, Citrus, Clay, Flagler and 16 more | 3 hr |
| May 4, 8:50 AM EDT | Severe Thunderstorm Watch | SPC | Brevard, Charlotte, Citrus, DeSoto, Flagler, Glades and 22 more | 7 hr |
| May 4, 11:45 AM EDT | Mesoscale Discussion | SPC | Brevard, Charlotte, Citrus, DeSoto, Flagler, Glades and 19 more | 2 hr |
| May 4, 12:11 PM EDT | Mesoscale Discussion | SPC | Broward, Collier, Hendry, Miami-Dade, Monroe, Palm Beach | 2 hr |
| May 4, 4:24 PM EDT | Mesoscale Discussion | SPC | Brevard, Broward, Collier, Glades, Hendry, Indian River and 8 more | 2 hr |
| May 4, 6:54 PM EDT | Mesoscale Discussion | SPC | Broward, Collier, Hendry, Miami-Dade, Monroe, Palm Beach | 66 min |
Nearby
Severe Thunderstorm Watches in Florida, 2005Every severe thunderstorm watch in 2005
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.