Marine Weather and Tide Forecast for Marietta, GA

SHORT TERM
(Today through Wednesday)
Issued at 245 AM EDT Tue Apr 14 2026

The overall pattern will remain largely unchanged today and Wednesday, with the high pressure regime maintaining its hold over the region. 500 mb level ridging over the northern Gulf extending into the western Atlantic and associated surface high pressure underneath will gradually retrograde through the short term period.
The ridge becoming more centered over the Southeast will keep any frontal boundaries and precipitation displaced well to the north of Georgia. The ridge aloft and southwesterly flow from the Gulf on the back side of the high will also promote continued warming. Low temperatures this morning will be in the mid 50s to near 60s. Under mostly clear skies, high temperatures this afternoon will be 9-12 degrees above normal in central Georgia and 12-16 degrees above normal in north Georgia, rising into the mid to upper 80s. With very dry fuels and RH values dropping to between 25-30% this afternoon, a Fire Danger Statement is in effect once again across the forecast area this afternoon.

By late Tuesday, the upper level synoptic pattern will reflect a classic omega-block pattern centered over the eastern CONUS, with deep troughing setting up on both sides of the aforementioned ridge. Low temperatures will begin Wednesday morning in the upper 50s and low 60s. Highs will be a few degrees warmer than today, climbing into the upper 80s and even low 90s in portions of east- central Georgia. Many locations across the forecast area could see new daily records be set on Wednesday and into the extended period.

LONG TERM
(Wednesday night through Monday)
Issued at 245 AM EDT Tue Apr 14 2026

Staying Warm and Dry for Most through Saturday:

The long term period brings the potential for the persistent ridging pattern to finally weaken and thus the potential for rainfall across parts of the County Warning Area (CWA). Unfortunately, this pattern shift will very likely not support the coverage and amount of rainfall necessary to put a dent in the Severe Drought (D2) to Extreme Drought (D3) that covers much of the CWA Ensemble guidance depicts a shortwave trough pushing across the Ohio River Valley and Mid-Atlantic over the course of Thursday and Friday. How much rain occurs here in north and central Georgia associated with this feature will depend on just how much the shortwave dampens when it interacts with the ridge and to what degree moisture associated with the shortwave is scoured out. Ensemble guidance suggests that Gulf moisture advection will be lacking, and when coupled with some semblance of ridging likely holding on across the Southeast, it seems likely that rain chances will remain low overall.

Rain Chances and a Drop in Temperatures on Sunday?

Ensemble guidance depicts the passage of a fairly stout longwave trough across the eastern CONUS late Saturday through late Sunday, although the individual ensembles (i.e. GEFS vs. EPS) vary regarding how far south the base of the trough swings. Such differences could impact how much moisture return occurs across the CWA, as well as the placement of favorable dynamics for storm organization/strength.
At this time, rain chances are greatest (25% to 30%) north of the Atlanta metro area, with 15% to 20% rain chances across the Atlanta metro area and parts of central Georgia. Appreciable rainfall is highly unlikely, so worsening drought conditions are expected through the weekend.

AVIATION
(18Z TAFS)
Issued at 102 PM EDT Tue Apr 14 2026

VFR conditions prevail under mostly clear skies with FEW cu in the 5-7 kft range each day. Winds remain WSW to SW at 6-10 kts during afternoon, less than 5 kts to near calm overnight.

//ATL Confidence
18Z Update
High confidence.

RW

PRELIMINARY POINT TEMPS/POPS
Athens 86 58 88 60 / 0 0 0 0 Atlanta 85 61 88 62 / 0 0 0 0 Blairsville 82 55 84 57 / 0 0 0 0 Cartersville 87 58 88 59 / 0 0 0 0 Columbus 87 59 88 59 / 0 0 0 0 Gainesville 85 60 87 62 / 0 0 0 0 Macon 87 57 89 60 / 0 0 0 0 Rome 87 57 88 59 / 0 0 0 0 Peachtree City 86 57 88 59 / 0 0 0 0 Vidalia 89 60 91 61 / 0 0 0 0

FFC WATCHES/WARNINGS/ADVISORIES
None.