Impressive Rain Totals This Week | News
A rain system developing to our west is moving toward Georgia. It will bring some impressive rain amounts into our area for the first part of the work week. The timing brings the rain into west Georgia late Sunday afternoon. It will move into the metro area during the evening hours. Most of the daytime hours will stay dry. Once the rain moves in, it will get heavier into the overnight hours. This first wave of rain will bring between 1 and 2 inches of rain through Monday morning.
Additional rain will move in with another surge of moisture Tuesday into Wednesday. Once it's all over, many areas could see 2-4 inches of rain. Our ground is already pretty wet from earlier rain events. The NWS and Hydrometeorological Center anticipates needing to issue some flood advisories or watches and warnings at the onset of the rain.
The NWS has a great summary of the impacts in their hydrologic outlook. I've cut and pasted that below. (Please forgive the all-caps. That's just how they do it.)...TWO ROUNDS OF HEAVY RAIN AND FLOODING LIKELY SUNDAY THROUGH TUESDAY... .RAINFALL EXPECTED... THE FIRST ROUND OF HEAVY RAIN WILL OCCUR SUNDAY NIGHT OVER NORTH GEORGIA...MAINLY NORTH OF I-85...PRODUCING UP TO 3 INCHES OF RAIN. ANOTHER ROUND OF HEAVY RAIN WILL AFFECT MUCH OF NORTH AND CENTRAL GEORGIA TUESDAY AND WEDNESDAY. BY THE TIME THE RAIN ENDS WEDNESDAY ...2 TO 4 INCHES WILL HAVE FALLEN WITH LOCALLY HIGHER AMOUNTS POSSIBLE. .SYNOPSIS... A STORM SYSTEM CURRENTLY OVER THE SOUTHERN ROCKIES WILL MOVE INTO THE MIDWEST SUNDAY. LOW LEVEL WINDS AHEAD OF THE ASSOCIATED COLD FRONT WILL BRING WARM MOIST AIR NORTHEAST OVER A DRY COOL AIR MASS IN PLACE OVER GEORGIA. THE STRONG LIFT GENERATED BY THE CONTRAST IN AIR MASSES WILL RESULT IN A PERIOD OF VERY HEAVY RAINFALL OVER NORTH GEORGIA SUNDAY NIGHT. ANOTHER STORM SYSTEM WILL MOVE TOWARD THE REGION ON MONDAY AND TUESDAY BRINGING HEAVY RAIN TO NORTH AND CENTRAL GEORGIA MONDAY NIGHT THROUGH EARLY WEDNESDAY. .PRE-EXISTING CONDITIONS... 5 TO 10 INCHES OF RAINFALL HAVE FALLEN OVER NORTH GEORGIA SINCE THE BEGINNING OF THE YEAR...GENERALLY NORTH OF INTERSTATE 20. IN CENTRAL GEORGIA...1 TO 3 INCHES OF RAIN OCCURRED THURSDAY ALONE. CONSEQUENTLY...MOIST SOIL CONDITIONS EXIST. THIS WILL ALLOW ANY HEAVY RAIN TO BE QUICKLY ABSORBED...THEN RUN OFF INTO NEARBY STREAMS...CREEKS AND RIVERS. .IMPACTS... AREAS OF FLASH FLOODING WILL BE POSSIBLE IF THE HEAVY RAIN REPEATEDLY MOVES OVER THE SAME AREA. ALSO...STORM DRAINS AND DITCHES MAY BECOME QUICKLY CLOGGED WITH DEBRIS AND CAUSE EXTENSIVE STREET FLOODING. MINOR FLOODING OF SOME OF THE LARGER CREEKS OR RIVERS IS MORE LIKELY WITH THE EXPECTED STORM TOTAL RAINFALL AMOUNTS. HOWEVER...DUE TO THE PRE-EXISTING CONDITIONS...ISOLATED SIGNIFICANT FLOODING MAY AFFECT FLOOD PRONE ROADS AND STRUCTURES NEARBY.