Alert archive / Florida / Tornado Watches in 2023
Tornado Watch 183
The Storm Prediction Center issued this tornado watch at Apr 29, 2023, 3:40 PM EDT for 33 counties in Florida. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 29, 2023, 3:40 PM EDT (19:40 UTC)
- Expired
- Apr 29, 2023, 10:00 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 33 counties
Alachua County, FL, Bradford County, FL, Brevard County, FL, Citrus County, FL, Clay County, FL, DeSoto County, FL, Dixie County, FL, Flagler County, FL, Gilchrist County, FL, Hardee County, FL, Hernando County, FL, Highlands County, FL, Hillsborough County, FL, Indian River County, FL, Lake County, FL, Levy County, FL, Manatee County, FL, Marion County, FL, Martin County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Putnam County, FL, Saint Johns County, FL, Saint Lucie County, FL, Sarasota County, FL, Seminole County, FL, Sumter County, FL, Union County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 140 km from the middle of the area, began a volume at 19:41 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 3:52 PM EDT | Tornado Warning | MLB | Brevard, Osceola | 11 min |
| Apr 29, 4:03 PM EDT | Severe Thunderstorm Warning | MLB | Orange, Osceola | 42 min |
| Apr 29, 4:10 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 40 min |
| Apr 29, 4:45 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Orange, Seminole | 30 min |
| Apr 29, 4:48 PM EDT | Severe Thunderstorm Warning | MLB | Martin | 27 min |
| Apr 29, 4:54 PM EDT | Severe Thunderstorm Warning | MLB | Orange, Osceola | 36 min |
| Apr 29, 5:54 PM EDT | Severe Thunderstorm Warning | MLB | Orange, Seminole | 15 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
Cape Canaveral, FL (KXMR), launched 12:00Z, 7.7 hours before the alert went out and 132 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
- 912 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 998 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 2:18 PM EDT | Mesoscale Discussion | SPC | Glades, Hendry, Highlands, Indian River, Martin, Okeechobee and 1 more | 117 min |
| Apr 29, 3:14 PM EDT | Mesoscale Discussion | SPC | Brevard, Charlotte, Citrus, DeSoto, Flagler, Glades and 24 more | 61 min |
| Apr 29, 6:19 PM EDT | Mesoscale Discussion | SPC | Brevard, DeSoto, Hardee, Highlands, Lake, Okeechobee and 6 more | 116 min |
Nearby
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.