textproduct: Newport/Morehead City

WHAT HAS CHANGED

No major changes to forecast, slightly slowed warming trend with a little bit cooler temps currently forecast into the weekend from previous iterations.

Updated at 1900 EDT for Aviation Discussion.

KEY MESSAGES

1) High pressure builds down toward the Appalachians from the Great Lakes leading to below Normal temps tonight and tomorrow. Showers linger over NEern zones through this evening.

2) Warming and mostly dry this weekend into early next week. There is a low end potential for record high temps this weekend into early next week.

DISCUSSION

KEY MESSAGE 1...Cold front pushed offshore earlier today with SFC high pressure approaching the East Coast. Trough axis aloft crosses the coast tonight, keeping shower activity in the forecast over NEern portions of the FA until about sunset. Skies clear overnight as flow becomes NWerly through the column. Light breeze expected to remain in place through the overnight hours, which should prevent maximum radiational cooling effects. MinTs have come up a few degrees, mostly low 50s, but mid to upper 40s are not out of the question over inland areas in sheltered spots that may decouple. MaxTs FRI will be a few degrees cooler than today despite the sunnier skies.

KEY MESSAGE 2...High pressure transits across the Eastern Seaboard and sets up offshore over the weekend and early next week. This will allow for S'rly flow to set up and for increasing low level thicknesses to overspread the CWA. As a result, a warming and drying trend is forecast into early next week. MaxTs back to the low to mid 80s SAT, upper 80s inland SUN, and 90s to start next work-week. While we will likely remain below record high temps this weekend and into early next week, we will be close. These temps are forecast to bring Minor to Moderate Heat Risks.

AVIATION /00Z FRIDAY THROUGH TUESDAY/

VFR conditions through the TAF pd. Diurnal strato cu clears tonight with mo clear skies.

We will continue to watch for some renewed, albeit more spotty, fog/stratus potential east of a OCW-EWN-NJM line after 06z Fri and could bring some sub-VFR conditions to the area, but much more patchy than last night.

Outlook (Friday night through Monday): We quickly transition back to a summer-like regime this weekend. This means a daily seabreeze, however Bermuda high pressure will be quite strong, and thus any chance of showers or storms is very low into early next week.

MARINE

Latest obs show NEerly winds, 15-20kt with slightly higher, but remaining below SCA criteria, gusts. Low pressure offshore will continue to push NE tonight. Once the initial post-frontal surge passes tonight, winds lessen some becoming NWerly 10-15 kt overnight as SFC high pressure approaches from the W. SCA for central coastal waters remains as previously scheduled with seas likely building to 4-6 ft early this evening and the first part of tonight.

Scattered showers and iso thunderstorms continue over waters N of Lookout this evening as trough axis aloft pivots off the coast. This is expected to end ~2000edt.

Outlook (Friday through Monday): High pressure sets up offshore, allowing for improving winds and seas, along with a mostly dry and warming forecast into the weekend. Winds grad becoming S-SW Fri night into Sat when SFC high pushes off ENC coast. Typical summertime pattern then returns with light to moderate SSW winds in the mornings, increasing to 10-20 kt in the afternoon and evening with stronger thermal gradient and sea/sound breezes. Seas generally remaining 2-4 ft.

MHX WATCHES/WARNINGS/ADVISORIES

NC...None. MARINE...Small Craft Advisory until 2 AM EDT Friday for AMZ152-154.