Alert archive / Georgia / Tornado Watches in 2015
Tornado Watch 110
The Storm Prediction Center issued this tornado watch at Apr 25, 2015, 9:08 AM EDT for 17 counties in Florida; 38 counties in Georgia. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 25, 2015, 9:08 AM EDT (13:08 UTC)
- Expired
- Apr 25, 2015, 4:00 PM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 55 counties
Baker County, FL, Calhoun County, FL, Columbia County, FL, Duval County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Hamilton County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Nassau County, FL, Suwannee County, FL, Taylor County, FL, Wakulla County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Calhoun County, GA, Charlton County, GA, Clay County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Echols County, GA, Grady County, GA, Irwin County, GA, Jeff Davis County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Pierce County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Ware County, GA, Wayne County, GA, Worth County, GA
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
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 9:20 AM EDT | Severe Thunderstorm Warning | TAE | Calhoun, Gadsden, Jackson, Liberty | 55 min |
| Apr 25, 11:22 AM EDT | Tornado Warning | TAE | Leon | 10 min |
| Apr 25, 12:24 PM EDT | Tornado Warning | TAE | Madison | 38 min |
| Apr 25, 12:30 PM EDT | Tornado Warning | TAE | Madison | 30 min |
| Apr 25, 12:34 PM EDT | Tornado Warning | JAX | Hamilton, Suwannee | 26 min |
| Apr 25, 1:00 PM EDT | Tornado Warning | JAX | Columbia, Hamilton, Suwannee | 30 min |
| Apr 25, 1:29 PM EDT | Tornado Warning | JAX | Baker, Columbia | 31 min |
| Apr 25, 1:57 PM EDT | Tornado Warning | JAX | Baker | 33 min |
| Apr 25, 2:28 PM EDT | Severe Thunderstorm Warning | JAX | Baker, Clay, Duval, Saint Johns | 47 min |
| Apr 25, 3:06 PM EDT | Tornado Warning | JAX | Clay, Duval, Saint Johns | 24 min |
| Apr 25, 3:52 PM EDT | Severe Thunderstorm Warning | TAE | Lowndes | 23 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
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 1.1 hours before the alert went out and 74 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
- 215 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 704 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 304 m²/s²
- 0-3 km storm-relative helicity
- 365 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
998 WWUS20 KWNS 251304 SEL0 SPC WW 251304 FLZ000-GAZ000-CWZ000-252000- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 110 NWS STORM PREDICTION CENTER NORMAN OK 905 AM EDT SAT APR 25 2015 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF NORTH FLORIDA SOUTHERN GEORGIA COASTAL WATERS * EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 905 AM UNTIL 400 PM EDT. * PRIMARY THREATS INCLUDE... A COUPLE TORNADOES POSSIBLE ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE SUMMARY...THE RISK FOR SEVERE THUNDERSTORMS...WITH DAMAGING WINDS AND A COUPLE OF TORNADOES POSSIBLE...IS EXPECTED TO STEADILY INCREASE THROUGH THE MORNING ACROSS PORTIONS OF NORTHERN FLORIDA AND SOUTH GEORGIA. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 10 MILES WEST SOUTHWEST OF MARIANNA FLORIDA TO 15 MILES NORTH NORTHEAST OF JACKSONVILLE FLORIDA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0). 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 107...WW 108...WW 109... AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 27040. ...GUYER
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 1:50 AM EDT | Tornado Watch | SPC | Dallas, Fayette, Greene, Hale, Lamar, Marengo and 4 more | 6 hr |
| Apr 25, 3:07 AM EDT | Mesoscale Discussion | SPC | Choctaw, Greene, Pickens, Sumter, Tuscaloosa | 83 min |
| Apr 25, 5:12 AM EDT | Mesoscale Discussion | SPC | Baldwin, Butler, Choctaw, Clarke, Conecuh, Dallas and 9 more | 63 min |
| Apr 25, 6:00 AM EDT | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bullock, Butler, Clarke and 18 more | 7 hr |
| Apr 25, 8:41 AM EDT | Mesoscale Discussion | SPC | Coffee, Covington, Dale, Geneva, Henry, Houston | 94 min |
| Apr 25, 10:35 AM EDT | Mesoscale Discussion | SPC | Baldwin, Mobile, Washington | 115 min |
| Apr 25, 2:36 PM EDT | Severe Thunderstorm Watch | SPC | Baldwin, Butler, Clarke, Conecuh, Covington, Crenshaw and 5 more | 4 hr |
| Apr 25, 2:50 PM EDT | Mesoscale Discussion | SPC | Baldwin, Butler, Clarke, Conecuh, Covington, Crenshaw and 4 more | 85 min |
| Apr 25, 3:10 PM EDT | Mesoscale Discussion | SPC | Autauga, Bibb, Bullock, Calhoun, Chambers, Chilton and 19 more | 95 min |
| Apr 25, 4:07 PM EDT | Severe Thunderstorm Watch | SPC | Barbour, Coffee, Dale, Geneva, Henry, Houston and 1 more | 7 hr |
| Apr 25, 5:38 PM EDT | Severe Thunderstorm Watch | SPC | Bullock, Chambers, Clay, Lee, Macon, Randolph and 2 more | 5 hr |
| Apr 25, 12:20 PM EDT | Mesoscale Discussion | SPC | Columbia, Gadsden, Hamilton, Jefferson, Lafayette, Leon and 5 more | 85 min |
| Apr 25, 3:30 PM EDT | Mesoscale Discussion | SPC | Baker, Columbia, Duval, Gadsden, Hamilton, Jefferson and 5 more | 60 min |
| Apr 25, 7:19 PM EDT | Mesoscale Discussion | SPC | Calhoun, Franklin, Gadsden, Gulf, Hamilton, Jackson and 6 more | 56 min |
| Apr 25, 6:07 PM EDT | Mesoscale Discussion | SPC | Bryan, Bulloch, Burke, Candler, Chatham, Effingham and 7 more | 53 min |
| Apr 25, 6:28 PM EDT | Severe Thunderstorm Watch | SPC | Bryan, Bulloch, Burke, Candler, Chatham, Effingham and 7 more | 4 hr |
Nearby
Tornado Watches in Georgia, 2015Tornado Watches in Florida, 2015Every tornado watch in 2015
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.