Alert archive / Florida / Tornado Watches in 2016
Tornado Watch 76
The Storm Prediction Center issued this tornado watch at Apr 1, 2016, 9:02 PM EDT for 27 counties in Florida; 15 counties in Georgia. It was in force for 9 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 1, 2016, 9:02 PM EDT (01:02 UTC)
- Expired
- Apr 2, 2016, 6:00 AM EDT
- In force
- 9 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 42 counties
Alachua County, FL, Baker County, FL, Bay County, FL, Bradford County, FL, Calhoun County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Franklin County, FL, Gadsden County, FL, Gilchrist County, FL, Gulf County, FL, Hamilton County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Nassau County, FL, Saint Johns County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Wakulla County, FL, Washington County, FL, Brantley County, GA, Brooks County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Decatur County, GA, Echols County, GA, Glynn County, GA, Grady County, GA, Lanier County, GA, Lowndes County, GA, Pierce County, GA, Seminole County, GA, Thomas County, GA, Ware County, GA
The radar
The Tallahassee radar (KTLH), 20 km from the middle of the area, began a volume at 01:05 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
- 30%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 5%
- 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 1, 10:14 PM EDT | Severe Thunderstorm Warning | TAE | Bay | 46 min |
| Apr 1, 10:48 PM EDT | Severe Thunderstorm Warning | TAE | Franklin, Gulf | 35 min |
| Apr 2, 2:23 AM EDT | Severe Thunderstorm Warning | JAX | Suwannee | 52 min |
| Apr 2, 3:25 AM EDT | Severe Thunderstorm Warning | JAX | Columbia, Hamilton, Suwannee | 35 min |
| Apr 2, 3:42 AM EDT | Tornado Warning | JAX | Hamilton, Suwannee | 33 min |
| Apr 2, 3:57 AM EDT | Severe Thunderstorm Warning | JAX | Columbia, Hamilton, Suwannee | 63 min |
| Apr 2, 4:54 AM EDT | Severe Thunderstorm Warning | TAE | Dixie, Taylor | 36 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
Jacksonville, FL (KJAX), launched 00:00Z, 1.0 hours before the alert went out and 233 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
- 1190 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 1066 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 3.5
The text
As transmitted.
940 WWUS20 KWNS 020059 SEL6 SPC WW 020059 FLZ000-GAZ000-CWZ000-020800- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 76 NWS STORM PREDICTION CENTER NORMAN OK 900 PM EDT FRI APR 1 2016 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF NORTHERN FLORIDA SOUTHERN GEORGIA COASTAL WATERS * EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 900 PM UNTIL 400 AM EDT. * PRIMARY THREATS INCLUDE... A COUPLE TORNADOES POSSIBLE SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE SUMMARY...ONE OR TWO LINES OF THUNDERSTORMS EXPECTED TO MOVE GENERALLY EAST-NORTHEAST ACROSS WATCH AREA THROUGH EARLY SATURDAY. A FEW EMBEDDED STORMS WILL BE CAPABLE OF DAMAGING WIND...MARGINALLY SEVERE HAIL...AND POSSIBLY A COUPLE TORNADOES. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTHWEST OF PANAMA CITY FLORIDA TO 30 MILES SOUTHEAST OF BRUNSWICK GEORGIA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. && OTHER WATCH INFORMATION...CONTINUE...WW 75... AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 25040. ...CORFIDI
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 11:39 PM EDT | Mesoscale Discussion | SPC | Baker, Bradford, Columbia, Franklin, Hamilton, Jefferson and 7 more | 66 min |
| Apr 2, 2:19 AM EDT | Mesoscale Discussion | SPC | Dixie, Gilchrist, Lafayette, Taylor | 56 min |
| Apr 2, 4:18 AM EDT | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Citrus, Clay, Columbia and 15 more | 117 min |
| Apr 2, 6:00 AM EDT | Severe Thunderstorm Watch | SPC | Alachua, Bradford, Citrus, Clay, Flagler, Gilchrist and 12 more | 7 hr |
| Apr 2, 8:42 AM EDT | Mesoscale Discussion | SPC | Hernando, Pasco, Pinellas | 93 min |
| Apr 2, 12:01 PM EDT | Mesoscale Discussion | SPC | Hernando, Lake, Orange, Pasco, Seminole, Sumter and 1 more | 59 min |
Nearby
Tornado Watches in Florida, 2016Tornado Watches in Georgia, 2016Every tornado watch in 2016
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.