Mesoscale Discussion 78

Issued

Jan 26, 2012, 7:29 PM EST (00:29 UTC)

Expired

Jan 26, 2012, 9:00 PM EST

In force

91 min

Issued by

the Storm Prediction Center

The Robins AFB radar (KJGX), 98 km from the middle of the area, began a volume at 00:32 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.

010 
ACUS11 KWNS 270030
SWOMCD
SPC MCD 270029
GAZ000-FLZ000-270200-

MESOSCALE DISCUSSION 0078
NWS STORM PREDICTION CENTER NORMAN OK
0629 PM CST THU JAN 26 2012

AREAS AFFECTED...CENTRAL/SOUTHERN GA AND NORTH FL

CONCERNING...TORNADO WATCH 19...

VALID 270029Z - 270200Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 19 CONTINUES.

TORNADO WATCH 19 CONTINUES UNTIL 05Z...WITH CONTINUED /BUT
DIMINISHING/ POSSIBILITIES FOR A TORNADO AND/OR ISOLATED WIND
DAMAGE. FOR AREAS EAST OF WW 19 ACROSS NORTHEAST FL/EASTERN GA...AN
ADDITIONAL WATCH ISSUANCE IS NOT CURRENTLY ANTICIPATED.

SEMI-ORGANIZED SQUALL LINE CONTINUES TO STEADILY PROGRESS EASTWARD
ACROSS WEST-CENTRAL/SOUTHWEST GA AS OF 0015Z...WITH THE GENERAL
INTEGRITY/STRENGTH OF THE CONVECTIVE LINE HAVING REMAINED TEMPERED
/AND BELOW SEVERE LIMITS/ OVER THE PAST FEW HOURS. AHEAD OF THE
LINE...OVER THE PAST HOUR OR TWO THERE HAS BEEN A TENDENCY FOR A
GRADUAL COOLING OF THE BOUNDARY LAYER...WITH SURFACE DEWPOINTS
HAVING GENERALLY REMAINED IN THE UPPER 50S TO LOWER 60S. EVEN WITH
POTENTIAL FOR SOME STRENGTHENING OF LOW-MID TROPOSPHERIC FLOW THIS
EVENING AS THE UPPER SYSTEM NEAR THE MS RIVER BEGINS TO ACCELERATE
EASTWARD...TRENDS OF A COOLING BOUNDARY LAYER AND WARMING CLOUD
TOPS/LIMITED CG LIGHTNING ALL SUGGEST THAT ANY SEVERE THREAT SHOULD
REMAIN MARGINAL/LOCALIZED. THIS IS ALSO SUPPORTED BY RELATIVELY WEAK
BUOYANCY/MODEST LAPSE RATES AS PER 00Z OBSERVED SOUNDINGS FROM
JACKSONVILLE AND TALLAHASSEE. ACCORDINGLY...AN ADDITIONAL WATCH IS
NOT CURRENTLY ANTICIPATED TO THE IMMEDIATE EAST OF TORNADO WATCH 19
THIS EVENING.

..GUYER.. 01/27/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...CHS...CAE...JAX...FFC...TAE...

LAT...LON   33328368 33508256 31708123 29468306 29698482 31558406
            33328368

Mesoscale Discussions in Georgia, 2012Mesoscale Discussions in Florida, 2012Every mesoscale discussion in 2012

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.