Alert archive / Georgia / Tornado Watches in 2019

Tornado Watch 64

April 14, 201923 counties in Georgia; 4 counties in South Carolina

The Storm Prediction Center issued this tornado watch at Apr 14, 2019, 3:02 PM EDT for 23 counties in Georgia; 4 counties in South Carolina. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Apr 14, 2019, 3:02 PM EDT (19:02 UTC)
Expired
Apr 14, 2019, 7:00 PM EDT
In force
4 hr
Issued by
the Storm Prediction Center
Largest hail expected
0.5 in
Strongest gust expected
55 kt
All 27 counties

Appling County, GA, Atkinson County, GA, Bacon County, GA, Brantley County, GA, Bryan County, GA, Bulloch County, GA, Candler County, GA, Charlton County, GA, Chatham County, GA, Clinch County, GA, Coffee County, GA, Echols County, GA, Effingham County, GA, Evans County, GA, Jeff Davis County, GA, Jenkins County, GA, Liberty County, GA, Long County, GA, Pierce County, GA, Screven County, GA, Tattnall County, GA, Ware County, GA, Wayne County, GA, Allendale County, SC, Beaufort County, SC, Hampton County, SC, Jasper County, SC

The radar

The Moody AFB radar (KVAX), 87 km from the middle of the area, began a volume at 19:04 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
30%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
10%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
50%

Warnings issued inside it

10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 14, 3:39 PM EDTSevere Thunderstorm WarningJAXCoffee38 min
Apr 14, 4:06 PM EDTSevere Thunderstorm WarningJAXJeff Davis24 min
Apr 14, 4:12 PM EDTTornado WarningJAXAtkinson33 min
Apr 14, 4:27 PM EDTSevere Thunderstorm WarningCHSBulloch, Evans44 min
Apr 14, 4:28 PM EDTSevere Thunderstorm WarningJAXCoffee32 min
Apr 14, 4:38 PM EDTTornado WarningJAXCoffee20 min
Apr 14, 4:48 PM EDTTornado WarningJAXBacon, Coffee27 min
Apr 14, 5:03 PM EDTSevere Thunderstorm WarningCHSEffingham, Screven57 min
Apr 14, 5:15 PM EDTSevere Thunderstorm WarningJAXAppling, Bacon, Jeff Davis19 min
Apr 14, 5:48 PM EDTSevere Thunderstorm WarningCHSEffingham57 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 12:00Z, 7.0 hours before the alert went out and 116 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.

Skew-T log-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2019-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 89 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2019-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 143 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
89 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
1117 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

218 
WWUS20 KWNS 141858
SEL4  
SPC WW 141858
GAZ000-SCZ000-142300-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 64
NWS Storm Prediction Center Norman OK
300 PM EDT Sun Apr 14 2019

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Southeast Georgia
  Far southern South Carolina

* Effective this Sunday afternoon and evening from 300 PM until
  700 PM EDT.

* Primary threats include...
  A couple tornadoes possible
  Isolated damaging wind gusts to 65 mph possible

SUMMARY...Line of thunderstorms with transient rotating structures
should continue east from southwest/central Georgia. The risk for a
couple brief tornadoes and locally damaging winds should persist.

The tornado watch area is approximately along and 50 statute miles
east and west of a line from 45 miles east southeast of Valdosta GA
to 45 miles north northwest of Savannah GA. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU4).

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 60...WW 61...WW 62...WW
63...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 0.5 inches. Extreme turbulence and surface wind
gusts to 55 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 21030.

...Grams

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 14, 3:15 AM EDTMesoscale DiscussionSPCEscambia, Okaloosa, Santa Rosa60 min
Apr 14, 3:45 AM EDTTornado WatchSPCBay, Calhoun, Escambia, Franklin, Gulf, Holmes and 6 more7 hr
Apr 14, 8:28 AM EDTMesoscale DiscussionSPCCalhoun, Gadsden, Gulf, Jackson, Jefferson, Leon and 4 more3 hr
Apr 14, 10:40 AM EDTTornado WatchSPCBay, Calhoun, Franklin, Gadsden, Gulf, Jackson and 7 more6 hr
Apr 14, 11:07 AM EDTMesoscale DiscussionSPCBay, Calhoun, Franklin, Gadsden, Gulf, Jackson and 4 more83 min
Apr 14, 2:07 PM EDTMesoscale DiscussionSPCBaker, Columbia, Dixie, Hamilton, Jefferson, Lafayette and 3 more83 min
Apr 14, 1:39 AM EDTMesoscale DiscussionSPCChattooga, Dade, Floyd, Walker66 min
Apr 14, 5:20 AM EDTMesoscale DiscussionSPCBartow, Carroll, Catoosa, Chattooga, Coweta, Dade and 11 more115 min
Apr 14, 6:36 AM EDTMesoscale DiscussionSPCBartow, Carroll, Catoosa, Chattooga, Coweta, Dade and 11 more54 min
Apr 14, 7:28 AM EDTTornado WatchSPCBanks, Barrow, Bartow, Bibb, Bleckley, Butts and 69 more7 hr
Apr 14, 11:48 AM EDTMesoscale DiscussionSPCColumbia, Elbert, Franklin, Hart, Lincoln, McDuffie and 5 more117 min
Apr 14, 12:54 PM EDTTornado WatchSPCBaldwin, Burke, Columbia, Dodge, Elbert, Emanuel and 26 more6 hr
Apr 14, 3:00 PM EDTMesoscale DiscussionSPCCatoosa, Fannin, Gilmer, Gordon, Murray, Walker and 1 more2 hr
Apr 14, 4:04 PM EDTMesoscale DiscussionSPCBarrow, Bartow, Carroll, Cherokee, Clayton, Cobb and 20 more116 min
Apr 14, 4:28 PM EDTSevere Thunderstorm WatchSPCBanks, Barrow, Bartow, Carroll, Cherokee, Clayton and 28 more6 hr
Apr 14, 5:43 PM EDTMesoscale DiscussionSPCEffingham2 hr
Apr 14, 7:12 PM EDTMesoscale DiscussionSPCBanks, Barrow, Clarke, Elbert, Franklin, Habersham and 11 more2 hr
Apr 14, 6:31 PM EDTTornado WatchSPCBerkeley, Charleston, Colleton, Darlington, Dillon, Dorchester and 6 more3 hr

Nearby

Tornado Watches in Georgia, 2019Tornado Watches in South Carolina, 2019Every tornado watch in 2019

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.