080 FXUS62 KMHX 100833 AFDMHXArea Forecast Discussion National Weather Service Newport/Morehead City NC 433 AM EDT Fri Oct 10 2025
.SYNOPSIS... A coastal low is forecast to move north along, or just off, the coast of the Carolinas this weekend. This will be an impactful system with heavy rain, prolonged northeast winds, coastal flooding, and dangerous marine conditions.
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.NEAR TERM /TODAY/... As of 1:50 AM Friday...
Key Messages: - NE winds gusting to 20-35 mph - Slight chance showers, mainly east of Highway 17
Surface high pressure centered over New England will slide offshore today while a coastal trough remains parked over ENC. This feature will support mostly cloudy to overcast skies and scattered showers, mainly east of Highway 17. Northeast winds will continue to gust to 20-30 mph inland and 25-35+ mph along the coast. Highs will be very similar to yesterday in the low- to mid-70s.
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.SHORT TERM /TONIGHT/... As of 2:15 AM Friday...
Key Messages:
- Flood Watch in effect for the Outer Banks and Downeast Carteret County
The coastal low off the FL coast will deepen as it moves north tonight, pushing its warm front towards ENC and increasing PoPs across the CWA. Rain may be moderate to heavy at times, especially along the coast and within thunderstorms and training cells. Therefore, a Flood Watch has been issued for the Outer Banks and Downeast Carteret County starting late tonight and continuing through Sunday morning. NE winds will gust to 15-20 mph inland and 20-30 mph along the coast with higher gusts possible in thunderstorms.
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.LONG TERM /SATURDAY THROUGH THURSDAY/... As of 2:45 AM Friday...
Key Messages:
- Impactful coastal low to bring heavy rain, strong winds, coastal flooding, and trecherous surf and marine conditions through early next week
Saturday - Wednesday...
The coastal low will continue to deepen as it lifts north towards the Carolinas on Saturday and will then stall near ENC before lifting north early next week. The track of the low has trended slightly west over the past 24 hours with guidance now in better agreement on a solution that takes it near or almost directly over the Outer Banks. Confidence is high that strong NE winds, heavy rain, coastal flooding, and treacherous surf and marine conditions can be expected through at least early next week. The behavior of the coastal low beyond Sunday remains a bit fuzzy at this time with the Euro showing it retrograding while the GFS keeps it slightly more progressive.
Wind - Strong northeast winds will persist through Sunday morning before backing to the northwest as the coastal low moves away from ENC. Winds will peak between Saturday night and Sunday night with gusts to 25-35 mph inland and 35-50 mph along the coast (highest along the Northern Outer Banks). If the current forecast remains on track, a Wind Advisory will likely be needed for the Outer Banks and Downeast Carteret County. A secondary surge of northerly winds is expected Tuesday-Wednesday as the low moves back to the south before the upper trough becomes progressive and moves the low out to sea.
Rain - Much needed rain will fall from Friday night to Monday, which should make a dent in the moderate drought conditions across the coastal plain and the abnormally dry conditions near the coast. Current storm total QPF has 2-5+" generally east of Highway 17 with highest totals along the Outer Banks. West of Highway 17, storm total QPF is in the range of 1-2". WPC has the higher QPF area outlined in a Slight Risk for excessive rainfall (at least 15% chance of flash flooding) on Saturday. As mentioned above, a Flood Watch has been issued for the Outer Banks and Downeast Carteret County from 2 AM tonight until 8 AM Sunday. Although ongoing drought conditions may help lessen the flood threat, the QPF still exceeds the FFG for this area. The WPC Probabilistic Precipitation Portal has the Flood Watch area painted with expected rainfall totals in the 3.5-4.5" range with high end amounts (10% chance of higher rainfall totals) in the 5.5-6.5" range.
Coastal Flooding - See the Coastal Flood section below.
Thursday...The pattern will remain active with a larger upper trough moving across the northeastern US and a dry cold front crossing the CWA.
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.AVIATION /09Z FRIDAY THROUGH TUESDAY/... SHORT TERM /through 06z Saturday/... As of 230 AM Friday...
A modest pressure gradient across the area, plus daytime heating/mixing, should support a continued risk of gusty winds at all TAF sites, especially from sunrise Friday through late Friday evening. Gusty winds may last well into Friday evening, especially from KOAJ to KEWN. Gradually increasing moisture should support SCT to BKN clouds in the 3000-5000ft range through Friday evening. CIGs may begin to lower just beyond the current TAF cycle as low-level moisture continues to increase in advance of a developing coastal low off the Southeast U.S. coastline. For now, I held off on introducing sub VFR CIGs, but the potential exists for MVFR conditions to develop prior to 06z/Saturday.
LONG TERM /Saturday through Tuesday/... As of 230 AM Friday...
A strong coastal low is forecast to lift north across, or very near, the coast of NC this weekend. This low is forecast to bring widespread IFR, or lower, CIGs, moderate to heavy rain, TSRA, reduced VIS, and gusty winds to much of ENC. The risk of reduced VIS, heavy rain, and TSRA looks to be focused Saturday into Saturday night. Gusty winds then continue into early next week as the low lifts north along the Mid-Atlantic coast.
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.MARINE... SHORT TERM /through tonight/... As of 230 AM Friday...
Key Messages
- Gale force northeasterly winds to continue to impact the southern coastal waters through this afternoon
Northeasterly winds of 20-30kt will continue to impact most waters through this afternoon. For the coastal waters south of Cape Hatteras, frequent gusts of 35-40kt are expected to last a bit longer than originally anticipated. In light of this, the Gale Warning was extended into early this afternoon. Elsewhere, occasional gusts to 35kt will remain a risk for several more hours. Winds are expected to lay down to 10-20kt, with higher gusts, tonight. Late tonight, areas of rain and thunderstorms are expected to develop from south to north as a coastal low begins to organize to our south. Where thunderstorms occur, there may be an accompanying risk of higher gusts and waterspouts.
LONG TERM /Saturday through Tuesday/... As of 230 AM Friday...
Key Messages
- Coastal low to impact the ENC waters with moderate to potentially significant marine hazards this weekend into early next week
A coastal low is forecast to develop later today or tonight off the coast east of Florida/Georgia. The low is then forecast to lift north along the coast of the Carolinas Saturday and Sunday, then move north to off the coast of the Mid-Atlantic/New England area by early next week. The latest 18z/00z guidance has, for the most part, stayed close to, or slightly west, of the previous forecast track. Guidance has also trended a bit weaker with the low as it moves up the coast. Based on the latest trends, guidance appears to be honing in on a scenario favoring widespread gale-force winds for much, if not all, of the ENC waters. Since the low hasn`t yet formed off the coast, there is still an opportunity for adjustments to the track and strength. Of note, there is still a clustering of guidance that suggests a period of storm-force winds across parts of our waters. Interestingly enough, ensemble guidance has shifted east with the track, which differs from deterministic guidance (which has shifted west). This goes to show there is still a decent amount of uncertainty. However, based on what appears to be the most likely scenario, our plan is to go ahead and hoist Gale Watches for most of our waters to help get the message out about the impending system. We`ll continue to refine the forecast and headlines as we move closer to the weekend. For the coastal waters south of Cape Hatteras, the ongoing Gale Warning will stand to message the near- term gale hazards. If the latest guidance trends hold, this will need to be replaced with a Gale Watch to cover the coastal low impacts.
For the coastal waters, seas of 6-8 ft Saturday morning should quickly build to 10-15 ft by Saturday evening. 10-15 ft seas are then expected to last into Sunday afternoon before gradually laying down beyond then. For the sheltered coastal waters south of Cape Lookout, seas are expected to peak in the 5-9 ft range Saturday afternoon through Sunday afternoon. Inland rivers and sounds are expected to be rough to very rough.
In addition to the hazardous winds and seas, the coastal low is expected to bring a risk of thunderstorms with it, especially along and to the north/east of the track. Where thunderstorms occur, there will be a risk of waterspouts and enhanced winds of 45-50kt+.
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.TIDES/COASTAL FLOODING... As of 430 AM Friday...King Tides and moderately strong NE winds behind a cold front have brought mainly minor coastal flood impacts to both oceanside and soundside communities since yesterday. Based on coastal webcams, vulnerable areas on Hatteras and Ocracoke Islands experienced areas of ocean overwash during times of high tide where dune structures were weakened, with some water noted on portions of NC-12. Gale-force NE winds are expected to last a bit longer today, and this is expected to keep water levels elevated, especially for areas favored in NE flow.
Confidence is high that low pressure will organize off the east coast of FL and strengthen as it moves north northeastwards along, or just off, of the coast of the Carolinas this weekend. This will bring a rapid increase in winds and high waves on Saturday, with moderate to locally major coastal flooding impacts developing. Coastal impacts are expected to peak Saturday afternoon through Sunday night.
Coastal flood products remain in effect with a Coastal Flood Advisory for the entire coast and counties that border the southern Pamlico Sound into Monday. The exception being Hatteras and Ocracoke Islands which continues to have a Coastal Flood Watch with the potential for greater impacts from the coastal low. This will especially be the case for the more vulnerable areas that have been impacted the greatest by multiple storms over the past 1-2 months.
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.MHX WATCHES/WARNINGS/ADVISORIES... NC...Coastal Flood Advisory until 8 AM EDT Monday for NCZ080-094- 194>196-199-203. Beach Hazards Statement through this evening for NCZ195-196- 199-203>205. Flood Watch from late tonight through Sunday morning for NCZ196-203>205. Coastal Flood Advisory until 5 PM EDT Saturday for NCZ204-205. Coastal Flood Watch from Saturday afternoon through Monday morning for NCZ204-205. MARINE...Small Craft Advisory until 8 PM EDT Saturday for AMZ131-137- 150-230-231. Gale Watch from Saturday evening through Monday morning for AMZ131-150-230-231. Small Craft Advisory until 5 PM EDT Saturday for AMZ135. Gale Watch from Saturday afternoon through Monday morning for AMZ135. Small Craft Advisory until 2 PM EDT this afternoon for AMZ136. Gale Watch from Saturday evening through late Sunday night for AMZ137. Small Craft Advisory until 2 PM EDT Saturday for AMZ152. Gale Watch from Saturday afternoon through Monday morning for AMZ152. Gale Warning until 2 PM EDT this afternoon for AMZ154-156-158.
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SYNOPSIS...MHX NEAR TERM...OJC SHORT TERM...OJC LONG TERM...OJC AVIATION...RM MARINE...RM TIDES/COASTAL FLOODING...MHX
NWS MHX Office Area Forecast Discussion