


Area Forecast Discussion
Issued by NWS Newport/Morehead, NC
Issued by NWS Newport/Morehead, NC
130 FXUS62 KMHX 080644 AFDMHX Area Forecast Discussion National Weather Service Newport/Morehead City NC 244 AM EDT Wed Oct 8 2025 .SYNOPSIS... A cold front tracks across the region this evening and tonight. High pressure builds to the north behind the cold front to end the work week, while a coastal storm forms off the coast this weekend. && .NEAR TERM /TODAY/... As of 145 AM Wednesday... A cold front, currently progressing east through the Ohio and TN Valleys, is expected to reach ENC later this afternoon or this evening. Southerly low-mid level flow ahead of the front should allow PWATs to rise to 1.5-2.0" through the day. The strongest forcing aloft is expected to remain north of ENC. However, the combination of increasing moisture, weak instability, and modest low- level convergence should allow a broken band of showers and thunderstorms to develop and progress south and east through ENC during the afternoon/evening hours. A modest mid-upper level jet encroaching on the area will lead to deep layer shear increasing to around 30kt around the time of peak heating/destabilization. Modest forcing, weak instability, and weak low-level lapse rates should keep the risk of strong to severe thunderstorms low. However, machine learning and probabilistic guidance suggest the risk isn`t zero. It appears that strong wind gusts will be the primary risk. This may especially be the case as some stronger winds aloft begin to develop across the area right along the advancing cold front. Any showers or thunderstorms right along the front may be able to mix down some of the strengthening winds aloft. Temperature-wise, southerly flow ahead of the front should support one final day of above-normal conditions across the area prior to the passage of the cold front. && .SHORT TERM /TONIGHT/... As of 145 AM Wednesday... A cold front will be surging south through ENC this evening and tonight, pushing offshore by midnight. Any lingering showers or thunderstorms should quickly diminish behind the front from north to south. Moderate to strong CAA behind the front will send temperatures quickly falling through the 60s, bottoming out in the 50s for most areas away from the coast. The front is expected to be accompanied by a period of gusty winds (strongest along the OBX). && .LONG TERM /THURSDAY THROUGH TUESDAY/... As of 4 AM Tuesday...Behind this cold front, high pressure builds in and strong pressure gradient sets up. This will result in gusty NE winds, highest over coastal zones. The gusty winds and higher seas paired with king tides would bring coastal flooding concerns. See Coastal Flooding section for more information. Front stalls offshore near the gulf stream after passing through Thursday. Upper level trough then moves through over the weekend, which will likely spin up a coastal low along this stalled front this weekend. Warm waters and lack of steering flow may allow the forecasted coastal low to sit over warm offshore waters and strengthen rapidly. Confidence is increasing in a coastal low forming, but strength, location, and impacts are still up in the air. See Coastal Flooding section for possible impact scenarios from this coastal low. && .AVIATION /07Z WEDNESDAY THROUGH SUNDAY/... SHORT TERM /through 06z Thursday/... As of 145 AM Wednesday... Key Messages - MVFR conditions possible overnight - TSRA possible Wednesday afternoon and evening - Wind shift with gusty N/NE winds behind a front Wednesday evening A moist southerly flow and modest low-level convergence should continue to support isolated SHRA development into early Wednesday morning. The risk of TSRA appears low during this time (<10% chance). Where/if clouds are able to clear for any area, light winds and a moist low-level airmass may support a period of reduced VIS in BR/MIFG through early Wednesday morning. During the day Wednesday, a cold front will approach the area from the northwest, and will eventually move through late Wednesday afternoon or early in the evening. This front is expected to be accompanied by SHRA and SCT TSRA. Along and behind the cold front, a N to NE wind shift is expected, along with a period of gusty winds. SCT to BKN MVFR level clouds appear likely along the front as well, especially from KOAJ to KEWN and points south. LONG TERM /Thursday through Sunday/... As of 5 AM Tuesday...Behind the front, gusty NE winds are expected Thursday and Friday as high pressure builds in. Friday into Saturday a coastal low is likely to develop off the SE coast, bringing gusty winds. Other impacts like cigs, and rain/tstorm chances depend on the location of the low, which is still uncertain. && .MARINE... SHORT TERM /through tonight/... As of 145 AM Wednesday... Key Messages - Scattered thunderstorms expected this afternoon into this evening - Elevated winds and seas develop behind a cold front this evening South winds of 5-15kt are expected to continue through late Wednesday afternoon. A cold front is then forecast to move quickly south through area waters, with a sharp north to northeast wind shift expected. In the wake of the wind shift, a period of 20-30kt NE winds is expected, with higher gusts of 25-35kt. For the coastal waters, this will lead to seas building to 5-8 ft at 5-7 seconds. Along and ahead of the cold front, there will be a risk of scattered thunderstorms. LONG TERM /Thursday through Sunday/... As of 330 Tue...SCAs issued for NE surge continuing into the weekend. Current expectation is for NE gusts around 30-40 knots for most marine zones, and chances for seeing gale force gusts have been steadily trending up over the past couple days. Friday into Saturday, coastal low is expected to develop of the SE US coast. This will bring hazardous marine conditions thanks to very gusty winds and dangerous seas. && .TIDES/COASTAL FLOODING... As of 340 PM Tue...Coastal Flood Watch issued for Hatteras and Ocracoke Islands with potential for moderate to locally major impacts. Main concern is oceanside, with the potential for additional soundside impacts this weekend. Coastal Flood Advisories issued for Northern OBX, southern coastal counties and eastern counties adjacent to the western Pamlico Sound, for minor to locally moderate impacts beginning Thursday and continuing into the weekend. King Tides and potential for strong NE flow mid to late next week. This week we enter a king tide cycle, with astronomically high tides. The highest tides are expected into Saturday (10/11), peaking Thursday. In addition to the King Tides, strong NE winds will develop Thursday, resulting in potential for minor to moderate cf impacts. This would help waves build along the coast, and may also help push some water towards the southern Pamlico Sound and Neuse river. Confidence is increasing on the strength of the winds, and the compounding effects of strong winds, higher seas, and king tides could cause greater impacts for areas with vulnerable dune structures along OBX Thursday and Friday. However, shorter wave periods Thursday and Friday may limit the power behind the waves. This weekend, a deep upper level trough moves through the eastern US, which will help spin up a coastal low offshore this weekend thanks to the baroclinicity on the edge of the warm Gulf Stream waters. While there is variation in strength, location, and impacts for ENC, at the very least this coastal low will bring elevated seas and winds. This, paired with higher than normal tides (although King Tides will have abated by then) could bring continuing coastal impacts (ocean and soundside) on top of any impacts mentioned Thursday-Friday. Of note, wave periods are expected to be higher this weekend, which would increase the power of the waves. Coastal concerns highest this weekend with potential for significant ocean overwash (Outer Banks), beach erosion, coastal flooding and dangerous rip currents. && .MHX WATCHES/WARNINGS/ADVISORIES... NC...Coastal Flood Advisory from 7 AM Thursday to 8 AM EDT Monday for NCZ080-094-194>196-199-203. Beach Hazards Statement through this evening for NCZ195-196- 199-204-205. Coastal Flood Watch from Thursday morning through Monday morning for NCZ204-205. MARINE...Small Craft Advisory from 8 PM this evening to 8 PM EDT Sunday for AMZ131-150-230-231. Small Craft Advisory from 11 PM this evening to 8 PM EDT Sunday for AMZ135-137-152-154. Small Craft Advisory from 11 PM this evening to noon EDT Thursday for AMZ156-158. Gale Watch from Thursday afternoon through late Thursday night for AMZ156-158. && $$ SYNOPSIS...MHX NEAR TERM...RM SHORT TERM...RM LONG TERM...TL AVIATION...RM/TL MARINE...RM/TL TIDES/COASTAL FLOODING...MHX