Alert archive / Georgia / Winter Storm Watches in 2015

Winter Storm Watch 1, NWS Atlanta, GA

February 14, 201548 counties in Georgia

NWS Atlanta, GA issued this winter storm watch at Feb 14, 2015, 3:52 PM EST for 48 counties in Georgia. It took effect at Feb 16, 2015, 1:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 14, 2015, 3:52 PM EST (20:52 UTC)
In effect from
Feb 16, 2015, 1:00 AM EST
Expired
Feb 15, 2015, 3:22 PM EST
In force
Issued by
NWS Atlanta, GA
All 48 counties

Banks County, GA, Barrow County, GA, Bartow County, GA, Carroll County, GA, Catoosa County, GA, Chattooga County, GA, Cherokee County, GA, Clarke County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Dade County, GA, Dawson County, GA, DeKalb County, GA, Douglas County, GA, Fannin County, GA, Fayette County, GA, Floyd County, GA, Forsyth County, GA, Fulton County, GA, Gilmer County, GA, Gordon County, GA, Greene County, GA, Gwinnett County, GA, Hall County, GA, Haralson County, GA, Heard County, GA, Henry County, GA, Jackson County, GA, Lumpkin County, GA, Madison County, GA, Morgan County, GA, Murray County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Paulding County, GA, Pickens County, GA, Polk County, GA, Rockdale County, GA, Taliaferro County, GA, Towns County, GA, Union County, GA, Walker County, GA, Walton County, GA, White County, GA, Whitfield County, GA, Wilkes County, GA

The radar

The Atlanta radar (KFFC), 87 km from the middle of the area, began a volume at 20:56 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

Birmingham, AL (KBMX), launched 12:00Z, 8.9 hours before the alert went out and 255 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, Birmingham, AL at 12:00Z on 2015-02-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Birmingham, AL at 12:00Z on 2015-02-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 167 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1933 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
167 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Atlanta, GA wrote its last area forecast discussion before this winter storm watch went out at Feb 14, 12:41 PM EST, 3 hours 11 minutes earlier.

Area forecast discussion, Feb 14, 12:41 PM EST, 3 hours 11 minutes before
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Hazardous weather outlook, Feb 14, 3:43 AM EST, 12 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
343 AM EST SAT FEB 14 2015

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-150845-
BALDWIN-BANKS-BARROW-BARTOW-BIBB-BLECKLEY-BUTTS-CARROLL-CATOOSA-
CHATTAHOOCHEE-CHATTOOGA-CHEROKEE-CLARKE-CLAYTON-COBB-COWETA-
CRAWFORD-CRISP-DADE-DAWSON-DEKALB-DODGE-DOOLY-DOUGLAS-EMANUEL-
FANNIN-FAYETTE-FLOYD-FORSYTH-GILMER-GLASCOCK-GORDON-GREENE-
GWINNETT-HALL-HANCOCK-HARALSON-HARRIS-HEARD-HENRY-HOUSTON-JACKSON-
JASPER-JEFFERSON-JOHNSON-JONES-LAMAR-LAURENS-LUMPKIN-MACON-
MADISON-MARION-MERIWETHER-MONROE-MONTGOMERY-MORGAN-MURRAY-
MUSCOGEE-NEWTON-NORTH FULTON-OCONEE-OGLETHORPE-PAULDING-PEACH-
PICKENS-PIKE-POLK-PULASKI-PUTNAM-ROCKDALE-SCHLEY-SOUTH FULTON-
SPALDING-STEWART-SUMTER-TALBOT-TALIAFERRO-TAYLOR-TELFAIR-TOOMBS-
TOWNS-TREUTLEN-TROUP-TWIGGS-UNION-UPSON-WALKER-WALTON-WARREN-
WASHINGTON-WEBSTER-WHEELER-WHITE-WHITFIELD-WILCOX-WILKES-
WILKINSON-
343 AM EST SAT FEB 14 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH AND CENTRAL GEORGIA.

.DAY ONE...TODAY AND TONIGHT...

...HIGH FIRE DANGER CONDITIONS ARE EXPECTED OVER NORTH AND CENTRAL
GEORGIA THIS AFTERNOON...
...DANGEROUS WIND CHILLS LATE TONIGHT EXTREME NORTH GEORGIA...

VERY DRY AND WINDY CONDITIONS ARE EXPECTED THIS AFTERNOON.
HUMIDITY VALUES WILL FALL TO AS LOW AS 20 TO 25 PERCENT AND WEST
WINDS WILL RANGE FROM 10 TO 20 MPH WITH GUSTS TO 25 MPH. THE DRY
AIR...GUSTY WINDS AND LOW FUEL MOISTURE VALUES WILL COMBINE TO
PRODUCE DANGEROUS FIRE WEATHER CONDITIONS. SEE THE LATEST FIRE
DANGER STATEMENT FOR ADDITIONAL INFORMATION.

WIND CHILL INDEX VALUES WILL DROP TO THE SINGLE DIGITS ACROSS
EXTREME NORTH GEORGIA LATE TONIGHT. FOR MORE INFORMATION SEE THE
LATEST WIND CHILL ADVISORY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...
A STRONG STORM SYSTEM WILL MOVE ACROSS NORTH AND CENTRAL GEORGIA
BEGINNING LATE SUNDAY NIGHT AND CONTINUING INTO TUESDAY NIGHT.
THIS WILL SPREAD A MIX OF RAIN...SLEET AND SNOW ACROSS NORTH AND
CENTRAL GEORGIA. AT THIS TIME NORTH GEORGIA WILL HAVE THE HIGHEST
RISK OF SEEING ACCUMULATIONS OF SLEET AND SNOW. AS THIS IS A
DEVELOPING STORM SYSTEM...PLEASE MONITOR THE FORECAST AS CHANGES
ARE LIKELY WITH FUTURE UPDATES.

ANOTHER STORM SYSTEM WILL MOVE INTO THE REGION FRIDAY BRINGING
ANOTHER RISK OF RAIN AND SNOW.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 14, 3:53 AM ESTWind Chill AdvisoryFFCBartow, Catoosa, Chattooga, Cherokee, Dade, Dawson and 12 more30 hr

Nearby

Winter Storm Watches in Georgia, 2015Every winter storm watch in 2015

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.