Alert archive / Florida / Severe Thunderstorm Watches in 2018
Severe Thunderstorm Watch 438
The Storm Prediction Center issued this severe thunderstorm watch at Dec 14, 2018, 4:03 PM EST for 10 counties in Florida. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 14, 2018, 4:03 PM EST (21:03 UTC)
- Expired
- Dec 14, 2018, 10:00 PM EST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
Counties Hardee County, FL, Hernando County, FL, Hillsborough County, FL, Lake County, FL, Manatee County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Sarasota County, FL, Sumter County, FL
The radar
The Tampa radar (KTBW), 36 km from the middle of the area, began a volume at 21:07 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
- 20%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 50%
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 14, 2:20 PM EST | Mesoscale Discussion | SPC | Citrus, Hernando, Hillsborough, Pasco, Pinellas, Sumter | 2 hr |
| Dec 14, 6:50 PM EST | Mesoscale Discussion | SPC | Hardee, Hernando, Hillsborough, Lake, Manatee, Pasco and 4 more | 115 min |
Nearby
Severe Thunderstorm Watches in Florida, 2018Every severe thunderstorm watch in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.