textproduct: Jacksonville

KEY MESSAGES

For the latest NE FL and SE GA Daily Key Messages please visit: https:/www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf

- High Risk for Rip Currents at All Area Beaches

- Patchy Dense Fog possible over inland northeast FL. Local visibility around a quarter of a mile or less

- Frost Possible for Inland Southeast GA & the Suwannee Valley Late Friday Night and Early Saturday Morning

UPDATE

Minor adjustments to winds/temperatures, otherwise forecast remains on track. Lows in the upper 30s across SE GA and near calm winds may see some patchy frost for locations along the Altamaha River. Lows in the mid 40s to lower 50s across NE FL. Patchy to areas of fog will be possible during the predawn and early morning hours on Wednesday across the area, with most development likely along the I- 75 corridor.

NEAR TERM /THROUGH WEDNESDAY/

High pressure ridge will extend west across the area from a center to the east northeast through Tonight. An inverted trough will be located over the coastal waters. This will be a dry period, but skies will be partly to mostly cloudy due to the trough. Onshore flow will yield a wide range in temperatures Tonight, with lows ranging from the middle 30s over inland SE GA to the lower 50s over coastal NE FL.

SHORT TERM /WEDNESDAY NIGHT THROUGH THURSDAY NIGHT/

Wednesday will be mainly dry and a little bit warmer than the last few days as high pressure overhead continues to move offshore. Highs will range from the mid 60s for inland southeast Georgia, to mid 70s in north central Florida, with a calm onshore breeze and mostly cloudy skies. Showers over the local waters are expected as a coastal trough remains in place. Temperatures will warm up further on Thursday ahead of an incoming cold front that will pass through Thursday night, bringing mainly scattered showers during the day Thursday and into the late evening. Southwesterly steering flow Thursday will bring in ample moisture, raising PWATs near 1.5 inches. Thunder chances are low, but non-zero, over portions of inland northeast Florida Thursday evening.

LONG TERM /FRIDAY THROUGH TUESDAY/

Drier air will be present through the weekend with pleasant temperatures near or above normal after the front passes through Friday evening. Showers will clear the area by daybreak Friday, with cloud cover gradually decreasing throughout the day paving the way for highs in the 60s to upper 70s. Friday night, calm northerly winds will allow for low temperatures in the mid 30s over portions of inland southeast Georgia, allowing for patchy frost formation overnight into Saturday morning. Temperatures will be near normal Saturday and warmer on Sunday with most locations seeing highs in the 70s with sunny skies both days as high pressure builds overhead.

AVIATION /00Z WEDNESDAY THROUGH 00Z THURSDAY/

Stratus and fog are expected to develop this evening, with restrictions anticipated for the overnight into Wednesday morning. Fog development over inland sites is expected to spread towards coastal locations during the predawn hours, bringing periods of lower vsbys for each of the TAF sites. Conditions are then expected to improve to VFR by 12Z/13Z.

MARINE

A few light showers over the offshore waters this evening, continuing through Wednesday, as high pressure continues to shift further off towards the Atlantic. Shower activity, possibly a few thunderstorms, will develop across the waters on Thursday ahead of an approaching cold front. Northeasterly winds shift to become southerly Thursday, then southwesterly Thursday night as the front pushes towards the local waters. The front crosses the waters on Friday, shifting winds to northwest during the afternoon hours. High pressure building north of our region on Friday afternoon and evening will wedge down the southeastern seaboard, resulting in winds shifting to northeast by Friday night and then east on Saturday afternoon as another coastal trough takes shape over the northeast Florida waters during the upcoming weekend.

Rip Currents: Low Risk of Rip currents on Wednesday for SE GA. Moderate risk of Rip currents across NE FL beaches on Wednesday.

FIRE WEATHER

Wednesday, calm winds will again bring very low dispersions across southeast Georgia, the Suwannee Valley, and coastal locations across the area. Dispersion will remain very low for most of the area on Thursday as well, and will improve Friday. Min RHs will steadily increase through Thursday, before decreasing once again Friday through the weekend behind a cold front. The next chances of precipitation will be on Thursday ahead of the cold front, higher chances along interior southeast Georgia.

FOG POTENTIAL AND OTHER REMARKS: Patchy to areas of fog formation will be possible during the predawn and early morning hours on Wednesday. Patchy to areas of frost formation will be possible across inland portions of far southeast Georgia on Tuesday night and early Wednesday morning.

PRELIMINARY POINT TEMPS/POPS

AMG 37 64 49 68 / 0 0 10 60 SSI 48 65 54 68 / 0 10 20 60 JAX 46 70 54 75 / 0 0 10 40 SGJ 53 70 59 75 / 10 0 20 40 GNV 48 75 56 78 / 0 0 10 40 OCF 49 75 56 79 / 0 0 10 30

JAX WATCHES/WARNINGS/ADVISORIES

FL...High Risk for Rip Currents until 10 PM EST this evening for FLZ124- 125-138-233-333. GA...High Risk for Rip Currents until 10 PM EST this evening for GAZ154- 166. MARINE...None.