Big weather changes by the weekend

As I pointed out at the start of the week the thermometer roller-coaster ride is going to continue the next 2-3 weeks. Above you can see the 16-day above and below normal temperature pattern projected by the American GFS model.

We warm into the 50s for highs this afternoon and to the lower 60s by Saturday to start December and a high Sunday of  70 or above! However it turns cold again by next Wednesday with highs in the 40s and lows in the 20s.

In the active El Nino jet stream pattern it will be hard to come by dry weather for more than 2 or 3 days in a row as temperatures swing from below normal to above normal to back below normal over and over into at least the first half of December.

There is still a risk of a damaging thunderstorm winds Saturday but as of now it looks like that would be only isolated and not widespread.  The higher risk of severe weather looks to be West and South of Atlanta. Stay tuned for updates in case that changes.

A few scattered showers around the area on Friday with amounts averaging around a tenth of an inch, but the better rain coverage will come on Saturday. As I’ve been saying all week the rain odds are high Saturday, but there should be at least some hours that are not raining. Rain amounts Saturday averaging .25-.50 of an inch.

The weekend weather results from a huge storm system in the center of the nation heading eastbound:

ESTIMATED RAINFALL FRIDAY:

ESTIMATED RAINFALL AMOUNTS FIRST HALF OF SATURDAY:

ESTIMATED RAINFALL AMOUNTS SECOND HALF OF SATURDAY:

ESTIMATED 66-HOUR RAIN TOTALS ENDING SATURDAY NIGHT:

SEVERE WEATHER RISK AREAS SATURDAY:

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