Area Forecast Discussion
Issued by NWS Newport/Morehead, NC

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014 FXUS62 KMHX 040705 AFDMHX Area Forecast Discussion National Weather Service Newport/Morehead City NC 305 AM EDT Tue Jun 4 2024 .SYNOPSIS... A backdoor front will move into the area today and stall. The weak front will lift back north early Wednesday as strong cold front approaches from the west. The front will move through Friday and Friday night, with slightly cooler and drier conditions expected this weekend. && .NEAR TERM /TODAY/...
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As of 3 AM Tue...Latest surface analysis shows high pressure centered offshore this morning with a weak backdoor cold front noted to the north in Virginia. Satellite imagery shows a mix of high and mid clouds across the CWA while isolated shower activity persists along the OBX and offshore as well as to the west of the area this morning. Expecting generally dry conditions with partly cloudy skies through daybreak with the exception of a shower or two along the OBX and offshore as the Gulf Stream helps keep some shower activity around the area. Lows this morning get into the mid to upper 60s across ENC. As we get into this afternoon and evening a more typical summer like pattern sets up across the CWA today. Upper level ridging will gradually build over the Southeast and Mid-Atlantic while a weak backdoor cold front gradually approaches from the north and slowly dives S`wards across the area. This front along with the seabreeze will be the focus for shower and thunderstorm activity today across ENC with chances quickly increasing after noon and maximizing around the 2-8 PM timeframe. Coverage starts out isolated and then becomes more scattered in nature with PoP`s hanging around 30-50% mainly along the inland areas this afternoon. Temps generally get into the mid to upper 80s today. Once again not expecting severe weather today given weak effective shear (15-25 kt) and weak forcing, though the threat is non-zero. Despite these limiting factors, 1000-2000 J/kg of SBCAPE would still make it possible for some stronger storms to develop with threats of heavy rainfall, gusty winds, and small hail.
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&& .SHORT TERM /TONIGHT/...
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As of 3 AM Tue... Once the sun sets generally expecting for any ongoing shower and thunderstorm activity to quickly weaken and dissipate across the area as instability rapidly lowers with the loss of daytime heating and forcing remains weak at best from the front. Much like the previous few evenings a few iso showers will remain possible tonight. Otherwise upper ridging centers itself over the area while weak backdoor cold front stalls over ENC. Another warm and muggy night is forecast tonight with lows once again in the mid to upper 60s.
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&& .LONG TERM /WEDNESDAY THROUGH MONDAY/... As of 235 AM Tue...Unsettled conditions expected through Thursday with near seasonable temps. High pressure will strengthen offshore through late week with a cold front approaching from the west. A cold front will move through Friday into Fri night, bringing drier conditions late week into the weekend. Another frontal system may impact the area early next week. Wednesday through Thursday...The stalled frontal boundary will continue to lift back north early Wednesday with cold front approaching from the west and high pressure strengthening offshore. This will allow rich moisture (PWATs 1.75-2") to advect in from the west ahead of a potent upper level trough and strong cold front. Increasingly unsettled conditions are likely with a diurnal max in coverage each afternoon. 00z guidance trending drier for Wed, so lowered pops slightly, keeping high chances inland and low chance/sc along the immediate coast. Greatest coverage still looks like Thursday afternoon and evening. Weak shear will limit the overall svr threat, though an isolated strong storm with gusty winds, small hail and heavy rain will be possible each day. An increase in heat and humidity is also likely as highs climb into the upper 80s to low 90s each afternoon, and it will feel like 95-100 degrees for most of the area when factoring in the humidity. Friday through Monday...Cold front looks to move through Friday into Friday night. Iso showers/storm possible Fri, but most areas will remain dry. 00z guidance shows upper troughing lingering along the east coast through the weekend, depicting drier and slightly cooler conditions across eastern NC. More comfortable airmass expected this weekend with dewpoints falling into the 50s and 60s and high temps in the 80s. Still a good amount of uncertainty early next week, with the potential for another frontal system to impact the area. Will keep sc to chance pops for now. && .AVIATION /07Z TUESDAY THROUGH SATURDAY/... SHORT TERM /through tonight/... As of 120 AM Tue... Made little in the way of changes to the forecast with predominantly VFR conditions expected through the period. Fog threat still looks to be minimal at best (generally less than 10%) for the rest of tonight with scattered high clouds around the area. But, the threat is non zero. It would likely be patchy nuisance ground fog if it did develop forming between 09-12Z this morning before dissipating. Even if fog does develop, it will cause minimal impact to operations. As we get into this afternoon, typical summer time convective pattern returns, with more westerly winds in the morning backing to a southerly direction as the sea breeze advances inland. Isolated to scattered thunderstorm development is likely after 18z tomorrow along the seabreeze and along an incoming backdoor cold front. Otherwise as we get into the evening hours shower and thunderstorm activity will quickly wane in coverage and intensity with the loss of daytime heating. LONG TERM /Wednesday through Saturday/... As of 235 AM Tue...Unsettled conditions expected this week, with best chances for showers and storms Wednesday and Thursday. This could bring some periods of sub-VFR conditions to the terminals. Sub-VFR cigs possible early Thu morning. A cold front will move through Fri and Fri night. && .MARINE...
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SHORT TERM /Through tonight/... As of 3 AM Tuesday...Ongoing 5-15 kt SW`rly winds and 1-2 ft seas will continue to persist through the morning hours before winds back to a more S`rly direction this afternoon as the seabreeze sets up. Winds along the northern waters may briefly become light and variable as a weak backdoor cold front moves south across the area but by this afternoon 5-10 kt SE`rly winds should pick up across this area. Winds could gusts close to 20 kts at times this afternoon behind the seabreeze. Winds will once again become SW`rly at 5-15 kts tonight as the seabreeze eventually dissipates and the previously mentioned front stalls. Seas remain around 1-2 ft through tonight. There will once again be a chance for shower and thunderstorm activity today but most of the activity will reside over the Coastal Plain and Gulf Stream. LONG TERM /Wednesday through Saturday/... As of 235 AM Tue...Light to moderate SSW winds Wed 5-15 kt will increase to 15-20 kt late Wed afternoon and Wednesday night, becoming SW 15-25 kt Thursday. SCA conditions possible Wednesday night and Thursday. The cold front will move through Friday and Friday night, with gradient relaxing and winds becoming WSW 10-15 kt. Light to moderate NNW-WNW winds Sat 5-15 kt. Seas will be mostly 2-3 ft through Wednesday, building to 3-6 ft Thursday, then gradually subsiding to 2-4 ft Fri and Sat.
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&& .MHX WATCHES/WARNINGS/ADVISORIES... NC...None. MARINE...None. && $$ SYNOPSIS...MHX NEAR TERM...RCF SHORT TERM...RCF LONG TERM...CQD AVIATION...CQD/RCF MARINE...CQD/RCF