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Kirk Mellish's Weather Commentary

Kirk Mellish's Weather Commentary 

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The problematic upper level low pressure energy in the jet stream passing across the SE USA.

On the line between big deal and no big deal

We could dodge a bullet or get smacked. The GA mountains are under the gun for sure and even worse for the Mountains of East TN and for KY/VA/NC. Read on...

European Model 500 mb heights/vorticity forecast chart showing upper-level closed low in the jet stream flow.
Various models do not agree on the strength or track, significant snow is most likely along and north of the low centers path which remains uncertain.

Snow or just an upper low?

This is not a winter storm situation with a snowstorm heading our way. It's been unseasonably warm and the ground and air are still mild. IF rain mixes with or changes to snow for a few hours work and school as normal would be expected as of now unless things change, which is always possible. Listen for updates daily on the radio and click the forecast links here at wsbradio.com and read my blog for more.

American Global Forecast System snowfall ending Friday the 18th. The GFS is just one of many models, it and the others will change multiple times every day. A model projection is not the real weather and is not my forecast.

Weather shifting Old Man Winter restless

The weather ground is shifting and there will be headlines about weather extremes in Europe and the USA before this month is done and next month, too. We will feel the changes here in the Southeast.

January-February weather changes

January is a weather battleground, February more wintry before next thaw.

NOAA snow cover map late December

January weather trends

The various numerical prediction models that simulate the atmosphere have not been reliable in recent weeks so even the short to medium range forecasts, let alone the long-range outlook are suspect and subject to more than the usual and normal revisions. Here are the trends.

If you're careful you can drive on snow really slow in low gear.

Winter weather awareness in Georgia

Winter Weather Awareness Week for Georgia is December 2-7, 2012. The main threats from winter weather across the Southeast stem from ice storms, crop-killing freezes and occasional snow. Last winter (2011-2012), all 4 climate sites reported a Trace of snowfall (Atlanta, Athens, Macon, and Columbus).

Expected temperature anomaly pattern for the coming winter.

Winter forecast 2012-2013

My winter outlook is certainly different from how last winter turned out and differs a lot from the NOAA/NWS winter forecast. I use the analogue method instead of computer models to make seasonal predictions.

Happy Thanksgiving.

The ghost of Thanksgiving weather past

The warmest November 22nd in Atlanta was last year at 77. When Thanksgiving was on the 26th in 1938 Atlanta had snow flurries!

Seasons change

Winter weather extremes and swings

The most notable thing about weather patterns since September has been the see-saw roller coaster ride of the jet stream and the temperature pogo stick thermometer pattern with long dry spells punctuated by the occasional short wet spell.

Election news may be the weather: an election guide to weather impact

IF the election is as close as so-called experts predict then every last detail will be agonized over, including the weather.

Sandy brought waves crashing onto Lake Shore Drive in Chicago with near-record 20+ foot waves off shore.

Sandy not even worst-case scenario, long-term pattern worrisome

Sandy, not even the worst it can be. Telling sign for coming winter?

Preliminary Outlook for Georgia for Winter

My Preliminary Outlook for Georgia for Winter 2012-2013: Near-normal precipitation. Near-normal to a little below-normal temperatures, but not persistently or consistently cold all winter, but a couple significant arctic blasts. Cooler than last year. Above-average odds of snow and/or ice.

Analog results for winter 2012-13 temperature anamolies

Preliminary winter forecast 2012-13

The coming winter does not look warm and uneventful if preliminary indicators hold.

Georgia fall tree color guide GA DNR

Fall foliage report Georgia leaf colors

Factor in the drought and the classic cool nights warm afternoons of October and mother nature has stepped on the gas when it comes to color change from Atlanta northward as leaf looking time is here again. Apple cider, apple strudel, hay rides, corn maze, pumpkin pie meo mio. Of course, Halloween decorations went up along side back to school and two weeks ago I saw my first TV Christmas commercial.

Harvest weather is here after the harvest full moon.

October and early winter thoughts

3-week forecast has significant ups and downs, and early thoughts about the coming winter.

Autumn weather outlook

October weather to swing back and forth to average near-normal. A fairly normal autumn is expected weather-wise but with a couple swings to the extreme of both warm/dry and wet cool averaging out near-normal over the 60-day period. The early trend for winter is for a winter that is close to normal on temperatures or a little below-normal averaged over the 3-month period with precipitation near-normal to above-normal thanks in part to a weak El Nino in the Central tropical Pacific Ocean.

Heat is gone with Halloween on horizon

No significant heat in sight the next 10 days and none really expected until next summer. Saw the Halloween stuff go up at the store the other day with Halloween "only" 48 days away, what about early fall weather?

The temperature departure map shows the summer was hottest in the middle of the nation with cooler than normal pockets in the Pacific Northwest and in the Southeast.

Look back at the summer weather that was

Labor Day marks the traditional end of the summer season, although meteorological summer ends August 30th, and the fall equinox marking the start of astronomical autumn is September 22nd at 10:49 A.M. EDT. This summer was quite different from the unrelenting heat of 2011.

Accumulated rainfall forecast into Sunday morning from NOAA Hydrological forecasters.

Isaac the terrible or beneficial in Georgia?

Dry spells in between rainy periods from Isaac for Metro Atlanta into weekend.

West trend in models continues, same as 5-10 days ago.

Isaac in Atlanta, calm down.

Issac: calm down in Atlanta. Please read previous post also if you have not already.

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