Alert archive / Georgia / Mesoscale Discussions in 2016
Mesoscale Discussion 110
The Storm Prediction Center issued this mesoscale discussion at Feb 16, 2016, 1:41 AM EST for 4 counties in Georgia; 4 counties in South Carolina. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Feb 16, 2016, 1:41 AM EST (06:41 UTC)
- Expired
- Feb 16, 2016, 2:45 AM EST
- In force
- 64 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
Counties Bryan County, GA, Chatham County, GA, Effingham County, GA, Liberty County, GA, Beaufort County, SC, Colleton County, SC, Hampton County, SC, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 37 km from the middle of the area, began a volume at 06:42 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 nearest sounding before it
Charleston AFB, SC (KCHS), launched 00:00Z, 6.7 hours before the alert went out and 124 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
- 52 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 931 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 213 m²/s²
- 0-3 km storm-relative helicity
- 327 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
155
ACUS11 KWNS 160641
SWOMCD
SPC MCD 160641
SCZ000-GAZ000-160745-
MESOSCALE DISCUSSION 0110
NWS STORM PREDICTION CENTER NORMAN OK
1241 AM CST TUE FEB 16 2016
AREAS AFFECTED...SERN GA / SC LOWCOUNTRY
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 160641Z - 160745Z
PROBABILITY OF WATCH ISSUANCE...20 PERCENT
SUMMARY...THE THREAT FOR ISOLD DAMAGING WINDS WILL PROBABLY BE
CONFINED TO SERN GA AND THE SC LOWCOUNTRY OVER THE NEXT FEW HOURS AS
A SQUALL LINE MOVES THROUGH THE AREA.
DISCUSSION...RADAR MOSAIC OVER THE REGION SHOWS A MATURE QLCS FROM
THE OKEFENOKEE SWAMP ALONG THE GA/FL BORDER NNEWD THROUGH THE
SAVANNAH RIVER VALLEY AND INTO CNTRL SC. THE CONVECTIVE LINE IS
IMMEDIATELY DOWNSTREAM OF A POTENT SHORTWAVE TROUGH MOVING ACROSS
THE AL/GA BORDER VICINITY AND INTO THE NERN GULF OF MEXICO. AS THE
MID-LEVEL WAVE APPROACHES...MID-LEVEL FLOW WILL CONTINUE TO BACK
--CONFIRMED THUS FAR IN REGIONAL 88D VAD DATA-- AND STRENGTHEN AND
BECOME MORE UNIDIRECTIONAL FROM THE SSW. THE ORIENTATION OF THE
LINE OVER GA HAS BECOME MORE FAVORABLY ORIENTED AND ORTHOGONAL TO
THE MEAN LOW- TO MID-TROPOPHERIC WINDS DURING THE PAST HOUR.
DESPITE THE AIRMASS OVER THE LOWER SAVANNAH RIVER VALLEY AND SC
LOWCOUNTRY BEING ONLY MARGINALLY UNSTABLE...THE STRONG FORCING FOR
ASCENT AND SLIGHTLY MORE FAVORABLE SQUALL LINE ORIENTATION MAY LEND
THE POSSIBILITY FOR A FEW STRONG TO LOCALLY SEVERE WIND GUSTS FOR
THE NEXT FEW HOURS.
..SMITH/EDWARDS.. 02/16/2016
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CHS...
LAT...LON 31778172 32288170 32958117 33078048 32838004 31688118
31778172SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 7:55 PM EST | Mesoscale Discussion | SPC | Baker, Brooks, Calhoun, Chattahoochee, Clay, Colquitt and 25 more | 2 hr |
| Feb 15, 8:07 PM EST | Tornado Watch | SPC | Baker, Ben Hill, Berrien, Brooks, Calhoun, Clay and 20 more | 5 hr |
| Feb 15, 10:32 PM EST | Mesoscale Discussion | SPC | Ben Hill, Berrien, Brooks, Colquitt, Cook, Decatur and 10 more | 58 min |
Nearby
Mesoscale Discussions in Georgia, 2016Mesoscale Discussions in South Carolina, 2016Every mesoscale discussion 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.