


Area Forecast Discussion
Issued by NWS Newport/Morehead, NC
Issued by NWS Newport/Morehead, NC
776 FXUS62 KMHX 101148 AFDMHX Area Forecast Discussion National Weather Service Newport/Morehead City NC 748 AM EDT Thu Jul 10 2025 .SYNOPSIS... A series of weak fronts and various upper level waves will lead to unsettled weather for several days. && .NEAR TERM /TODAY/... As of 715 AM Thursday... Key Messages - Increased risk of showers and thunderstorms through tonight, a few of which could be strong to severe with damaging winds and minor flooding Satellite imagery this morning reveals various upper level waves, some of which may be remnant MCVs from previous day`s convection. These waves are moving slowly through the Southeast U.S. within a moist and unstable southwesterly flow regime aloft. This has supported isolated to scattered shower and thunderstorm development over the past several hours, the most recent of which impacted parts of the Crystal Coast. Regionally, most of the activity is focused offshore and to the south of ENC. Through the remainder of the morning, there will continue to be a risk of isolated to widely scattered showers and thunderstorms, especially across coastal areas. In the wake of any morning convection, attention turns to the afternoon hours as the seabreeze and various remnant boundaries provide increased low-level forcing compared to the past few days. This should subsequently translate to an increased risk of showers and thunderstorms for much of the area. Short-term ensemble guidance have waffled some on where the best chance of thunderstorms will be, but the signal is pretty good regardless. Moderate instability, 2"+ PWATs, and increased forcing should support some higher rainfall rates at times, with areas of 1-3" of rain likely where convection is the strongest and most persistent. Dry antecedant conditions should help to lower the overall flood risk today. However, any area that receives 2-3" of rain in a short period of time may have to contend with some minor flooding. Because of the lowered, and more isolated, flood risk, a Flood Watch is not planned for today. We`ll continue to evaluate this potential, though. Weak deep layer shear should help to limit the severe thunderstorm potential today. However, moderate instability and increased forcing should support transient, deep cores capable of wet microbursts. This potential is supported by machine learning guidance, which suggests an increased risk of a few severe thunderstorms compared to recent days. With increased cloudcover and a higher chance of thunderstorms, highs today should struggle to get above 90. && .SHORT TERM /TONIGHT/... As of 215 AM Thursday... Various boundaries and upper level impulses combined with a very moist airmass appears supportive at least isolated to scattered showers and thunderstorms this evening and tonight. While weakening low-level lapse rates and boundary layer stabilization should tend to limit any severe thunderstorm risk, there should be sufficient lift and instability to support periods of heavy rainfall and minor flooding. && .LONG TERM /FRIDAY THROUGH WEDNESDAY/... As of 230 AM Thurs...We will continue to see a rather active pattern across ENC through this weekend with daily chances for showers and thunderstorms as a thermal trough remains inland and high pressure ridging remains anchored offshore. Upper level pattern will remain active to the north, with multiple troughs tracking from west to east across the Northern Plains into the Northeast, while upper level ridging remaining in place off the coast of the Southeast and over the western CONUS. Several weak midlevel shortwave troughs will push across the region through this weekend and into early next week continuing to bring moisture up from the Gulf from midlevels downward across the Southeast. As a result, diurnal showers and thunderstorms will persist across the CWA with lowest precipitation chances overnight unless a stronger storm cluster persists and drifts into the CWA from further inland before dissipating. With high PW values, the greatest threat from the storms will be heavy rainfall. WPC currently has the FA in a marginal ERO on Friday before the area finally sees slightly lower chances for precip. This will briefly end the marginal risk for excessive rainfall. While there will be a lack of wind shear across ENC over the next several days, 1000-3000 J/kg of MLCAPE is forecast to be in place each day. This will result in at least a low end threat for some severe weather with SPC putting our far western inland zones under a marginal risk of severe weather on Friday. Damaging wind gusts appear to be the greatest threat within the strongest storms with the Coastal Plain having the highest chance at seeing stronger storms. Late this weekend and into early next week, a backdoor front slowly sags down the Mid-Atlantic coast but there are tons of model differences in how far and how quickly it will march Sward. This remains contingent on how much momentum gets transferred from the trough aloft exiting NECONUS and where midlevel shortwaves and potential MCSs line up. For now, keeping the backdoor front along the northern zones of the area early next week which will keep available moisture for diurnal summer time shower and tstorms in place into midweek next week. Max Temps each day range from the upper 80s to low 90s, with min temps mid 70s. && .AVIATION /12Z THURSDAY THROUGH MONDAY/... SHORT TERM /through 12z Friday/... As of 730 AM Thursday... Key Messages - Increased risk of TSRA over the next 24 hours SHRA and TSRA from earlier this morning have since weakened, leaving behind SCT to BKN low CIGs. Inland across the coastal plain of ENC, LIFR and IFR conditions are ongoing due to low stratus. Guidance suggests this will mix out and rise to MVFR by 13-14z, followed by VFR after that. Meanwhile, as daytime heating and destabilization ensues, the risk of SHRA and TSRA should steadily increase, likely peaking from 18z-06z. Guidance continues to show a more solid signal for TSRA today compared to the past few days. PROB30s continue to be used to highlight the window when the greatest risk is expected, but later updates may need TEMPO or prevailing conditions in the TAFs. It`s worth noting that the TSRA risk may linger well into this evening. Where TSRA occur, there will be an increased risk of IFR conditions and gusty/erratic winds of 40kt+. Like the past few nights, another round of IFR/MVFR CIGs appears possible tonight in the wake of the TSRA activity. LONG TERM /Friday through Monday/... As of 230 AM Thurs...Several mid level shortwaves will track across ENC into early next week. This will continue to bring a daily threat for showers and thunderstorms as well as sub-VFR conditions. Best chance to see reduced vis and ceilings from this activity is in the afternoon and early evening each day. If it does rain then there will also be a fog and low stratus threat each night as well for areas that see meaningful rainfall. Slow moving front sags down the NE coast late weekend/early next week. && .MARINE... SHORT TERM /through tonight/... As of 230 AM Thurs...SCA`s have recently been taken down across all our waters this morning as SW`rly winds have eased down to 10-15 kts with gusts up to 20 kts and seas along our coastal waters remaining around 3-5 ft as of this update. As we get into today and tonight a developing thermal trough inland will interact with a ridge of high pressure centered offshore allowing SW`rly winds to increase slightly to 15-20 kts with a few gusts up near 25 kts. With additional cloud cover expected today, thinking is that the thermal trough will not be as strong as the previous day which will preclude SCA`s today, though can`t rule out a few gusts up to 25 kts or so across the same areas that saw small craft conditions on Wednesday. Gusty winds will then ease once again overnight to 10-15 kts. Seas generally remain around 3-5 ft through the period. There will be a chance to see some shower and thunderstorm activity across our waters as well, bringing at least a threat for locally enhanced winds and seas within any thunderstorm that impacts the waters. LONG TERM /Friday through Monday/... As of 230 AM Thurs...With little change in the surface pattern through this weekend as high pressure ridging remains centered offshore and a thermal trough remains centered off to the west, expect 10-20 kt SW`rly winds and with gusts up to 20 to occasionally 25 kts across our waters through this weekend while seas persist around 2-4 ft. Daily chances for showers and thunderstorms will continue as well. Cold front slowly sags down the coast late this weekend into early next week, but for now, keep it no further S than our northern zones until early next week. Either way our waters remain below SCA criteria early next week as well, as incoming front will be rather weak. && .MHX WATCHES/WARNINGS/ADVISORIES... NC...None. MARINE...None. && $$ SYNOPSIS...MHX NEAR TERM...RM SHORT TERM...RM LONG TERM...RCF AVIATION...RM/RCF MARINE...RCF