Alert archive / Georgia / Tornado Watches in 2017
Tornado Watch 22
The Storm Prediction Center issued this tornado watch at Jan 22, 2017, 4:25 PM EST for 16 counties in Georgia; 14 counties in South Carolina. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 22, 2017, 4:25 PM EST (21:25 UTC)
- Expired
- Jan 22, 2017, 7:52 PM EST
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Particularly dangerous situation
- Yes
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 65 kt
All 30 counties
Bryan County, GA, Bulloch County, GA, Burke County, GA, Candler County, GA, Chatham County, GA, Columbia County, GA, Effingham County, GA, Evans County, GA, Jenkins County, GA, Liberty County, GA, Long County, GA, McDuffie County, GA, McIntosh County, GA, Richmond County, GA, Screven County, GA, Tattnall County, GA, Aiken County, SC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Beaufort County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Clarendon County, SC, Colleton County, SC, Dorchester County, SC, Hampton County, SC, Jasper County, SC, Orangeburg County, SC
The radar
The Charleston,SC radar (KCLX), 8 km from the middle of the area, began a volume at 21:25 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
- 80%
- One or more EF2 to EF5 tornadoes
- 80%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 40%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 22, 6:36 PM EST | Severe Thunderstorm Warning | CHS | Long, McIntosh | 24 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
Charleston AFB, SC (KCHS), launched 12:00Z, 9.4 hours before the alert went out and 106 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 762 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 253 m²/s²
- 0-3 km storm-relative helicity
- 438 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
535
WWUS20 KWNS 222121
SEL2
SPC WW 222121
GAZ000-SCZ000-CWZ000-230300-
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 22
NWS Storm Prediction Center Norman OK
425 PM EST Sun Jan 22 2017
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Southeast Georgia
Central and Southern South Carolina
Coastal Waters
* Effective this Sunday afternoon and evening from 425 PM until
1000 PM EST.
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
* Primary threats include...
Several tornadoes and a few intense tornadoes likely
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Scattered large hail events to 1.5 inches in diameter possible
SUMMARY...Intense supercell thunderstorms over central Georgia will
track eastward across the watch area late this afternoon and
evening. strong tornadoes are damaging winds are possible with the
strongest cells.
The tornado watch area is approximately along and 80 statute miles
north and south of a line from 55 miles west of Savannah GA to 35
miles east southeast of Charleston SC. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU2).
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 21...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1.5 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 24040.
...HartSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 21, 7:51 PM EST | Tornado Watch | SPC | Baker, Ben Hill, Calhoun, Clay, Colquitt, Decatur and 15 more | 8 hr |
| Jan 21, 9:30 PM EST | Mesoscale Discussion | SPC | Clay, Early, Quitman, Seminole | 90 min |
| Jan 21, 10:57 PM EST | Mesoscale Discussion | SPC | Baker, Calhoun, Chattahoochee, Clay, Decatur, Dougherty and 10 more | 93 min |
| Jan 22, 12:06 AM EST | Mesoscale Discussion | SPC | Appling, Bacon, Ben Hill, Bibb, Bleckley, Brantley and 34 more | 54 min |
| Jan 22, 12:49 AM EST | Mesoscale Discussion | SPC | Baker, Calhoun, Chattahoochee, Clay, Decatur, Dougherty and 10 more | 116 min |
| Jan 22, 2:55 AM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 47 more | 65 min |
| Jan 22, 3:20 AM EST | Tornado Watch | SPC | Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 56 more | 9 hr |
| Jan 22, 3:46 AM EST | Mesoscale Discussion | SPC | Baldwin, Barrow, Bibb, Butts, Carroll, Chattahoochee and 38 more | 119 min |
| Jan 22, 6:34 AM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 57 more | 86 min |
| Jan 22, 7:11 AM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 49 more | 2 hr |
| Jan 22, 9:11 AM EST | Mesoscale Discussion | SPC | Brantley, Brooks, Camden, Charlton, Clinch, Decatur and 7 more | 64 min |
| Jan 22, 10:16 AM EST | Mesoscale Discussion | SPC | Brooks, Camden, Charlton, Clinch, Decatur, Echols and 5 more | 59 min |
| Jan 22, 10:41 AM EST | Mesoscale Discussion | SPC | Baldwin, Bibb, Bleckley, Butts, Crawford, Dodge and 27 more | 94 min |
| Jan 22, 11:25 AM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 31 more | 95 min |
| Jan 22, 12:02 PM EST | Mesoscale Discussion | SPC | Decatur, Seminole | 58 min |
| Jan 22, 12:47 PM EST | Tornado Watch | SPC | Appling, Atkinson, Bacon, Baker, Baldwin, Ben Hill and 100 more | 7 hr |
| Jan 22, 1:31 PM EST | Mesoscale Discussion | SPC | Chattahoochee, Harris, Meriwether, Muscogee, Troup | 59 min |
| Jan 22, 1:36 PM EST | Mesoscale Discussion | SPC | Decatur, Grady, Miller, Seminole, Thomas | 54 min |
| Jan 22, 3:02 PM EST | Mesoscale Discussion | SPC | Baker, Ben Hill, Berrien, Brooks, Calhoun, Colquitt and 15 more | 58 min |
| Jan 22, 3:28 PM EST | Mesoscale Discussion | SPC | Carroll, Chattahoochee, Clayton, Coweta, Douglas, Fayette and 10 more | 92 min |
| Jan 22, 4:02 PM EST | Mesoscale Discussion | SPC | Bryan, Bulloch, Burke, Candler, Chatham, Effingham and 8 more | 88 min |
| Jan 22, 4:19 PM EST | Mesoscale Discussion | SPC | Atkinson, Bacon, Ben Hill, Berrien, Charlton, Clinch and 12 more | 86 min |
| Jan 22, 6:58 PM EST | Mesoscale Discussion | SPC | Brantley, Bryan, Bulloch, Burke, Candler, Chatham and 11 more | 92 min |
Nearby
Tornado Watches in Georgia, 2017Tornado Watches in South Carolina, 2017Every tornado watch in 2017
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.