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Severe Weather, Then Cooler Toward End of the Week

Strong storms and damaging winds for Wednesday.

We had a close call last Friday with the system that brought ice to parts of north Georgia. But what's the saying, close is only good with horseshoes and hand grenades?

It looks like severe weather will be coming to our area on Wednesday. This is going to primarily be a wind and rain event, although a quick spin up tornado is not out of the question. An upper low that is currently over the southwest US is expected to advance east through the day on Tuesday. The upper level jet at both 200 mb and 300 mb are expected to line up (see the 200mb, 300mb, and 500mb maps above) and combine to bring a portion of those winds toward the surface, both in advance of the squall line and during it's passage. There will be quite a gradient as the system approaches, and winds in advance of the actual rain could be quite strong. Combine those winds with the still moist soil, and you have a recipe for considerable damage. Huntsville NWS had this to say about the winds:

THE OBVIOUS THREAT WITH THIS EVENT WILL BE WIDESPREAD DAMAGING WINDS
(WHICH MAY REACH/EXCEED 70MPH), WITH LOCALLY HEAVY RAINFALL A CLOSE
SECOND. PWATS OF 1.6" ARE BETWEEN THE 99TH PERCENTILE AND RECORD
VALUES FOR THIS TIME OF YEAR. THOUGH THE LINE WILL BE MOVING RAPIDLY
ACROSS THE AREA, IT WILL PRODUCE VERY HEAVY RAINFALL AMOUNTS IN A
SHORT PERIOD OF TIME (UPWARDS OF AN INCH IN 30 MINS OR LESS ARE
LIKELY), SO THIS MAY BRIEFLY LEAD TO PONDING OF WATER ON AREA
ROADWAYS. NO WIDESPREAD FLOODING ISSUES ARE EXPECTED, BUT THIS WILL
BE SOMETHING TO WATCH IF THE SYSTEM SLOWS DOWN.

The models have picked up the pace for this system and it now appears it will arrive here very late tonight or in the morning on Wednesday. There will be heavy rain accompanying this system with the HPC showing as much as two inches over portions of north Georgia. Once again like last Friday, we were stuck in the wedge and kept our temperatures in the 40s for most of the day on Monday. Today will be a different story with warm moist gulf air, from the surface to the mid levels of the atmosphere. Temperatures could hit 70 here depending on the sunshine or lack of.

Colder air returns after the frontal passage with highs on Thursday only in the 40s again. There is a chance that Thursday night/early Friday, parts of north Georgia could see a few flurries, as well as again Saturday night which might be a better chance. None of these are major events and may end up passing to our north again. 


We're going to be in for a roller coaster ride for February with cold periods intermingled with warm-ups, and there are signs that March may end up as the coldest month of the winter. I'll have more on this in a new post. 

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This post is contributed by a community member. The views expressed in this blog are those of the author and do not necessarily reflect those of Patch Media Corporation. Everyone is welcome to submit a post to Patch. If you'd like to post a blog, go here to get started.

North Georgia Weather January 30, 2013 at 05:54 PM
BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1245 PM EST WED JAN 30 2013 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * TORNADO WARNING FOR... CHEROKEE COUNTY IN NORTH CENTRAL GEORGIA NORTHERN COBB COUNTY IN NORTH CENTRAL GEORGIA NORTH CENTRAL FULTON COUNTY IN NORTH CENTRAL GEORGIA SOUTHEASTERN BARTOW COUNTY IN NORTHWEST GEORGIA PAULDING COUNTY IN NORTHWEST GEORGIA
Lori January 30, 2013 at 05:54 PM
Terrible!! When will it be here in Metro Atlanta?
North Georgia Weather January 30, 2013 at 05:55 PM
Almost here, it is here on the west side.
North Georgia Weather January 30, 2013 at 05:57 PM
All unnecessary traffic has been shut down to Adairsville.
North Georgia Weather January 30, 2013 at 06:00 PM
Tornado warning just west of Forsyth and Hall, headed your way
North Georgia Weather January 30, 2013 at 06:04 PM
Tornado just north of Dallas headed toward Acworth
North Georgia Weather January 30, 2013 at 06:28 PM
Storm reports http://www.daculaweather.com/4_spc_storm_reports.php
North Georgia Weather January 30, 2013 at 06:32 PM
There is a Severe Thunderstorm Warning for the SW part of Gwinnett BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 131 PM EST WED JAN 30 2013 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL CHEROKEE COUNTY IN NORTH CENTRAL GEORGIA COBB COUNTY IN NORTH CENTRAL GEORGIA NORTHWESTERN DEKALB COUNTY IN NORTH CENTRAL GEORGIA DOUGLAS COUNTY IN NORTH CENTRAL GEORGIA CENTRAL FULTON COUNTY IN NORTH CENTRAL GEORGIA WEST CENTRAL GWINNETT COUNTY IN NORTH CENTRAL GEORGIA EAST CENTRAL CARROLL COUNTY IN NORTHWEST GEORGIA SOUTHEASTERN PAULDING COUNTY IN NORTHWEST GEORGIA
North Georgia Weather January 30, 2013 at 06:41 PM
Per NWS: Over 100 cars overturned near exit 306 on I-75 in Georgia from tornado
North Georgia Weather January 30, 2013 at 06:52 PM
Watch has been extended further south and east and now includes Oconee and Morgan counties. http://www.daculaweather.com/national_alerts/4_severe_alert.php
North Georgia Weather January 30, 2013 at 07:25 PM
Almost all of Gwinnett is under a Severe Thunderstorm Warning THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN CHEROKEE COUNTY IN NORTH CENTRAL GEORGIA EASTERN COBB COUNTY IN NORTH CENTRAL GEORGIA DEKALB COUNTY IN NORTH CENTRAL GEORGIA EASTERN DOUGLAS COUNTY IN NORTH CENTRAL GEORGIA SOUTHWESTERN FORSYTH COUNTY IN NORTH CENTRAL GEORGIA FULTON COUNTY IN NORTH CENTRAL GEORGIA GWINNETT COUNTY IN NORTH CENTRAL GEORGIA NORTH CENTRAL COWETA COUNTY IN WEST CENTRAL GEORGIA * UNTIL 300 PM EST * AT 210 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE INDICATED A SEVERE THUNDERSTORM WITH A HISTORY OF PRODUCING QUARTER SIZED HAIL AND ALSO CAPABLE OF 60 MPH WINDS. THIS STORM WAS LOCATED 7 MILES SOUTH OF LITHIA SPRINGS...MOVING NORTHEAST AT 65 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EAST POINT...HAPEVILLE...ATLANTA...GRANT PARK-ZOO ATLANTA...MIDTOWN... SMYRNA...BUCKHEAD...DRUID HILLS...DECATUR...AVONDALE ESTATES... CLARKSTON...SANDY SPRINGS...PINE LAKE...CHAMBLEE...STONE MOUNTAIN...DUNWOODY...DORAVILLE...TUCKER...ROSWELL...MOUNTAIN PARK...NORCROSS...LILBURN...BERKELEY LAKE...ALPHARETTA... SNELLVILLE...DULUTH...MILTON...JOHNS CREEK...GRAYSON... LAWRENCEVILLE...SUWANEE...DACULA...SUGAR HILL...CUMMING AND BUFORD.
Kristi Reed (Editor) January 30, 2013 at 07:30 PM
Wow - what county is that?
Gail Lane January 30, 2013 at 08:00 PM
Bartow County, Kristi.
Kristi Reed (Editor) January 30, 2013 at 08:05 PM
Thanks Gail - I just now pulled up a report from Cartersville Patch: http://cartersville.patch.com/articles/storm-related-accidents-debris-closed-i-75-ga-3-ga-293-in-bartow
North Georgia Weather January 30, 2013 at 08:14 PM
FLOOD WATCH NATIONAL WEATHER SERVICE PEACHTREE CITY GA 257 PM EST WED JAN 30 2013 GAZ001>009-011>016-019>022-030>033-041-310500- /O.CON.KFFC.FA.A.0002.000000T0000Z-130131T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS- CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-BARTOW- CHEROKEE-FORSYTH-POLK-PAULDING-COBB-NORTH FULTON-HARALSON- INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...CLEVELAND... ROME...CARTERSVILLE...MARIETTA...ATLANTA 257 PM EST WED JAN 30 2013 ...FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... THE FLOOD WATCH CONTINUES FOR * MUCH OF NORTH GEORGIA...GENERALLY ALONG AND NORTH OF A LINE FROM BUCHANAN TO ATLANTA TO CLEVELAND. * UNTIL MIDNIGHT EST TONIGHT * A STRONG COLD FRONT HAS BROUGHT SHOWERS AND THUNDERSTORMS INTO NORTH GEORGIA. ONE TO THREE INCHES OF RAIN HAS ALREADY FALLEN IN AN AREAS FROM TRENTON TO HIAWASEE TO CARROLLTON. ANOTHER HALF INCH IS POSSIBLE IN THESE AREAS. EAST OF THIS AREA...AN ADDITIONAL ONE TO TWO INCHES IS POSSIBLE. * THESE RAINFALL AMOUNTS COULD COMBINE WITH THE SATURATED GROUND TO PRODUCE RAPID RISES ON SMALL CREEKS AND STREAMS...WITH FLOODING OF LOW LYING AND FLOOD PRONE AREAS POSSIBLE.
North Georgia Weather January 30, 2013 at 08:15 PM
We're still under a Severe Thunderstorm Warning, the heavy rain hasn't gotten here yet.
Kristi Reed (Editor) January 30, 2013 at 08:16 PM
Cartersville Patch has photos and information about the tornado that hit Adairsville: http://cartersville.patch.com/articles/one-dead-after-tornado-rips-through-downtown-adairsville#photo-13173822
North Georgia Weather January 30, 2013 at 09:14 PM
Yes, they had it rough up there. This might be an EF2 or 3 tornado.
North Georgia Weather January 30, 2013 at 09:34 PM
Rain came down at 7.2" per hour here this afternoon, or 0.12" per minute.
North Georgia Weather January 30, 2013 at 09:36 PM
BULLETIN - IMMEDIATE BROADCAST REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 420 PM EST WED JAN 30 2013 ...THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A FLOOD WARNING FOR THE FOLLOWING CREEK IN GEORGIA... CROOKED CREEK NEAR NORCROSS AFFECTING FULTON AND GWINNETT COUNTIES .RECENT HEAVY RAINFALL HAS CAUSED SIGNIFICANT RUNOFF INTO STREAMS AND RIVERS WHICH WILL CAUSE FLOODING IN SOME AREAS. THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * FLOOD WARNING FOR THE CROOKED CREEK NEAR NORCROSS. * FROM THIS AFTERNOON UNTIL FURTHER NOTICE. * AT 400 PM WEDNESDAY THE STAGE WAS 10 FEET...AND RISING. * MINOR FLOODING IS FORECAST. * FLOOD STAGE IS 11 FEET. * THIS CREEK SHOULD RISE TO NEAR 11.5 FEET BY THIS EVENING. IT WILL FALL BELOW FLOOD STAGE LATER TONIGHT. * AT 11 FEET...MINOR FLOODING OF THE NATURAL FLOOD PLAIN BEGINS MAINLY ON THE LEFT BANK UPSTREAM AND DOWNSTREAM FROM THE RIVER GAUGE AT SPALDING DRIVE.
Kristi Reed (Editor) January 31, 2013 at 01:37 AM
Steve - Thanks so much for keeping us updated throughout this storm. I really appreciate it. Also, I just checked my rain gauge. It showed about 2.5 inches.
Tommy Hunter January 31, 2013 at 03:28 AM
Haven't been able to check my gauge yet, just got home (long day at GJAC). I will tomorrow. We may have gotten close to the 1 inch mark after all.
North Georgia Weather January 31, 2013 at 02:07 PM
1.62" yesterday at my place, I'll verify that with my CoCoRaHS gauge when i get home.
North Georgia Weather January 31, 2013 at 02:10 PM
Time lapse video from DaculaWeather.com yesterday: http://www.daculaweather.com/4_video_wed.php
North Georgia Weather January 31, 2013 at 04:39 PM
Warnings issued over the last two days TOR SVR FFW SMW Yesterday: 75 263 27 27 Two days ago: 87 204 13 3 ================================ 162 467 40 30 TOR - Tornado Warnings SVR - Severe Thunderstorm FFW - Flash Flooding SMW - Marine warnings
North Georgia Weather January 31, 2013 at 05:08 PM
21.6º cooler now than this time yesterday.
North Georgia Weather January 31, 2013 at 07:01 PM
Storm survey results http://www.srh.noaa.gov/ffc/?n=tornadoevent_013013
North Georgia Weather February 01, 2013 at 10:53 AM
OK... last post here . The latest storm summary from the tornado the other day place the Adairsville tornado as a high end EF3. http://www.srh.noaa.gov/ffc/?n=tornadoevent_013013 Scroll toward the bottom
Jimmy Orr February 01, 2013 at 02:41 PM
NGW, excellent severe weather reporting Wednesday. You really kept me busy in staying abreast of the bad weather coming our way via your updates on Dacula Patch. Trust Kristi gave you an "atta boy." It was like being in the ring with a fine tuned middleweight in that you were throwing those weather punches right and left. Not exactly sure of the time but the heavy rain and winds didn't hit over our way until late Wednesday afternoon. Not exactly sure of the time. Do you know the amount of rainfall we got out our way? In closing, Thank YOU for your usual great job of weather updates throughout the day.
North Georgia Weather February 01, 2013 at 06:55 PM
You are very welcome Jimmy! It was a very busy day indeed. We had roughly 1-2" of rain in our area. You can always get the latest rainfall totals from the previous day(s) here: http://www.daculaweather.com/4_cocorahs_precip_map.php

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