Alert archive / Georgia / Mesoscale Discussions in 2014

Mesoscale Discussion 1889

October 14, 201415 counties in Georgia; 14 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Oct 14, 2014, 6:22 AM EDT for 15 counties in Georgia; 14 counties in South Carolina. It was in force for 83 min.

The area

The outline as issued.

The facts

Issued
Oct 14, 2014, 6:22 AM EDT (10:22 UTC)
Expired
Oct 14, 2014, 7:45 AM EDT
In force
83 min
Issued by
the Storm Prediction Center
Chance of a watch
80%
All 29 counties

Bulloch County, GA, Burke County, GA, Candler County, GA, Columbia County, GA, Elbert County, GA, Emanuel County, GA, Glascock County, GA, Jefferson County, GA, Jenkins County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Screven County, GA, Warren County, GA, Wilkes County, GA, Abbeville County, SC, Aiken County, SC, Allendale County, SC, Anderson County, SC, Barnwell County, SC, Edgefield County, SC, Greenville County, SC, Greenwood County, SC, Hampton County, SC, Laurens County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Saluda County, SC

The radar

The Columbia radar (KCAE), 103 km from the middle of the area, began a volume at 10:23 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.

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 10.4 hours before the alert went out and 220 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, Peachtre/Fal Fld, GA at 00:00Z on 2014-10-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 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, Peachtre/Fal Fld, GA at 00:00Z on 2014-10-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 square meters per square second.193958Sfc1 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
15 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1475 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 13, 9:57 PM EDTMesoscale DiscussionSPCBartow, Carroll, Catoosa, Chattahoochee, Chattooga, Cherokee and 29 more2 hr
Oct 13, 11:44 PM EDTTornado WatchSPCBartow, Calhoun, Carroll, Catoosa, Chattahoochee, Chattooga and 32 more6 hr
Oct 14, 3:07 AM EDTMesoscale DiscussionSPCBaker, Bartow, Butts, Calhoun, Carroll, Chattahoochee and 54 more83 min
Oct 14, 4:06 AM EDTTornado WatchSPCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 59 more6 hr
Oct 14, 4:27 AM EDTTornado WatchSPCBaker, Ben Hill, Berrien, Brooks, Calhoun, Clay and 19 more8 hr
Oct 14, 6:57 AM EDTTornado WatchSPCBulloch, Burke, Candler, Columbia, Effingham, Elbert and 27 more7 hr
Oct 14, 7:23 AM EDTMesoscale DiscussionSPCDade2 hr
Oct 14, 8:35 AM EDTMesoscale DiscussionSPCBaker, Berrien, Brooks, Calhoun, Colquitt, Cook and 12 more85 min
Oct 14, 11:21 AM EDTMesoscale DiscussionSPCBrooks, Clinch, Cook, Echols, Lanier, Lowndes and 2 more114 min
Oct 14, 11:43 AM EDTSevere Thunderstorm WatchSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 20 more7 hr
Oct 14, 1:31 PM EDTMesoscale DiscussionSPCBaldwin, Banks, Barrow, Bibb, Butts, Clarke and 45 more2 hr
Oct 14, 1:59 PM EDTTornado WatchSPCBaldwin, Banks, Barrow, Bibb, Burke, Butts and 53 more11 hr
Oct 14, 2:58 PM EDTMesoscale DiscussionSPCBryan, Bulloch, Candler, Chatham, Effingham, Evans and 7 more32 min
Oct 14, 3:07 PM EDTSevere Thunderstorm WatchSPCBryan, Bulloch, Candler, Chatham, Effingham, Evans and 6 more6 hr
Oct 14, 6:29 PM EDTMesoscale DiscussionSPCColumbia, Elbert, Franklin, Glascock, Greene, Hancock and 9 more91 min

Nearby

Mesoscale Discussions in Georgia, 2014Mesoscale Discussions in South Carolina, 2014Every mesoscale discussion in 2014

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.