


Area Forecast Discussion
Issued by NWS Newport/Morehead, NC
Issued by NWS Newport/Morehead, NC
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
711 FXUS62 KMHX 141856 AFDMHX Area Forecast Discussion National Weather Service Newport/Morehead City NC 256 PM EDT Sat Jun 14 2025 .SYNOPSIS... An unsettled weather pattern will continue into early next week thanks to an unstable and very moist airmass in place across the region. && .NEAR TERM /THROUGH TONIGHT/... As of 3 PM Sat... Key Messages - Scattered to numerous thunderstorms with heavy rain expected through this evening Latest analysis shows high pressure anchored off the SE coast, wavy front draped through the Mid-Atlantic and shortwave pushing off the Carolina coast. Front will slowly begin to sink southward overnight. Showers and thunderstorms continue to blossom along and south of Hwy 70 early this afternoon, courtesy of wave pushing off the coast coupled with the seabreeze. Coverage may shift further inland and north later this afternoon and early evening. Weak deep layer shear should keep the risk of severe weather at a minimum, but water-loaded downdrafts capable of strong, gusty winds will be possible. Of note, as the wave moves through today, there may be just enough of a boost with winds aloft to support an area of 20-25 kt of deep layer shear. Anomalous PWATs of 2"+ will combine with a deep warm cloud layer and slow storm motions, supporting a risk of intense rainfall rates. A Flood Watch was contemplated for portions of ENC, especially where the heaviest rainfall totals occurred yesterday, but there is some uncertainty regarding where the heaviest rainfall totals will be. Will continue to hold off on a watch with this forecast, but continue to evaluate the potential in later updates. In the wake of today`s shortwave, guidance is in generally good agreement showing an area of low-mid level drying overspreading ENC this evening and tonight. Should this be realized, there may be a relative minimum in shower and thunderstorm activity tonight, especially inland. Regardless, it will be another warm night, with lows in the 70s areawide. && .SHORT TERM /SUNDAY/... As of 3 PM Sat... - Scattered to numerous showers and thunderstorms expected again Sunday, with potential for localized flooding and gusty winds. High pressure will remain anchored offshore as weak backdoor front begins to sink southward into the northern portions of the forecast area. MLCAPES will reach 15-2500 J/kg, with 0-6 km deep layer shear around 20-30 kt, while the front/seabreeze should provide ample forcing. There will be a threat for some of this activity to become severe in nature with damaging winds being the primary hazard, though a few isolated instances of hail and an isolated tornado can`t be completely ruled out. The one limiting factor will be the weak mid-level lapse rates which may preclude a widespread severe threat. Either way SPC currently has the area under a marginal (level 1 of 5) risk for severe thunderstorms Sun afternoon and eve. Other concern will again be the potential for locally heavy rain with PWATs around 2 inches, which could lead to localized flooding. && .LONG TERM /SUNDAY NIGHT THROUGH SATURDAY/... As of 330 AM Saturday... Key Messages: - Unsettled weather pattern into Tuesday with multiple chances for severe weather and heavy rain - Potential for dangerous heat indices midweek into the end of next week. Sunday night through Tuesday...Unsettled weather will continue into Mon/Tue as upper ridging remains anchored to the south and east. At the same time, a slow moving upper trough gradually pushes E`wards across the Southeast and Mid-Atlantic next week with multiple weak shortwaves tracking along the periphery of this upper trough. At the surface, cold front to the north at the start of the period will dive SE`wards, eventually stalling over the area Sun night, before lifting N on Mon and remaining just north of the area on Tue. As this occurs, the frontal boundary and Seabreeze will become the focus for shower and thunderstorm activity each day. The general trend for each day will be for ongoing showers and thunderstorms offshore to gradually push onshore with the seabreeze each morning. Then by the afternoon as the front nears the area, additional shower and thunderstorm activity develops before chances lower and precip pushes offshore each night. With warm and muggy conditions expected, MLCAPES will reach 1500-2500 J/kg on Mon/Tue. With 0-6 km deep layer shear maxing out around 25-40 kts each day and the front/Seabreeze providing ample forcing, there will be a threat for some of this activity to become severe in nature with damaging winds being the primary hazard, though a few isolated instances of hail and an isolated tornado can`t be completely ruled out. The one limiting factor each day will be the weak mid-level lapse rates which may preclude a broader severe threat. Will have to monitor trends but if convective coverage is anticipated to be larger than currently expected upgrades to the current threat may become necessary. Otherwise, with SW`rly surface flow continuing to pump ample moisture N`wards from the Gulf, expect PWATs to change little, remaining around 2 inches into Tue night while remaining muggy. Combined with slow storm motions, potentially training storms, and plenty of moisture, any storm that does develop will be a very efficient rain maker and localized flooding threat is on the table through early in the week (See HYDRO Section for more details). As a result portions, if not all of the FA is under a marginal/slight risk for excessive rainfall into Tue. Temps each day get into the upper 80s to low 90s with lows in the 70s each night. Wednesday into next weekend... Upper pattern eventually becomes more zonal by midweek with a return to a more summer like pattern with thunderstorms developing off the daily seabreeze and gradually pushing inland each day bringing. Will note, an upper level trough will be digging into the Mid-Atlantic from the west late next week, but should stay north of ENC given the latest guidance. As a result, a weak surface cold front may track across the region late next week, but impacts from this front remain uncertain. Of bigger note will be the hot and muggy conditions as a combination of temps in the 90s Wed/Thurs and dewpoints in the 70s will result in hazardous heat indices with "feels like" temps closer to the triple digits each day. Will have to monitor trends, but the years first heat advisories may be needed next week if the current forecast holds. && .AVIATION /18Z SATURDAY THROUGH THURSDAY/... SHORT TERM /through Sunday/... As of 3 PM Sat... Key Messages - Increased TSRA risk through this evening and again Sunday Large area of showers and storms continue to impact the southern portions of the forecast area this afternoon...with a mix of VFR and IFR conditions. The risk will likely stay focused the risk from KOAJ to KEWN and points south through about early afternoon, followed by a potential shift towards KISO and KPGV by mid to late afternoon. Where TSRA occur, there will be an increased risk of sub VFR conditions and gusty winds. Outside of TSRA, expect VFR conditions, with the risk of MVFR returning late tonight through mid morning Sunday (best chances at PGV and ISO). Scattered to numerous showers and storms expected again Sunday. LONG TERM /Sunday night through Thursday/... As of 330 AM Saturday...Unsettled weather will continue to persist across the area into midweek next week as multiple fronts bring several rounds of showers and thunderstorms to Eastern North Carolina. Greatest threat to see storms will be each afternoon and evening across the FA. This will bring a daily threat for sub-VFR conditions each day. In addition to this, early morning fog development will remain possible for areas that see rain. && .MARINE... SHORT TERM /through tonight/... As of 3 PM Sat... Key Messages - Increased thunderstorm risk for areas waters through Sunday An upper level wave will continue to move through the ENC this afternoon, supporting another round of scattered to numerous showers and thunderstorms. The thunderstorm risk may extend into tonight for the central and southern coastal waters. For all waters, the strongest thunderstorms will be capable of 30-40kt+ winds and waterspouts. Outside of the thunderstorm activity, the background flow will be southwesterly at 10-20kt which will support seas of 3-5 ft. Strongest winds expected in the afternoon and early evenings. Have seen a few obs across the outer central waters build to 6 ft, will monitor the potential need for short duration SCA. LONG TERM /Sunday night though Thursday/... As of 330AM Saturday... No significant changes to the forecast on this update as high pressure centered offshore in the Atlantic will continue to interact with frontal boundaries tracking across the region into next week. This will bring daily chances for showers and thunderstorms with offshore showers in the morning clearing by the afternoon and then additional shower and thunderstorm activity expected in the evening. This will bring a threat for locally enhanced winds and seas within any thunderstorm that moves out over the waters. Otherwise 5-15 kt SW`rly winds with gusts near 20-25 kts are forecast for Sun night with slightly stronger winds 15-20 kt with gusts up to 25 kt will be possible on Monday with the approach of a frontal boundary. Winds ease slightly back down to 5-15 kt out of the SW on Tue as high pressure tries to reestablish itself offshore. Seas remain around 2-4 ft through the period. && .HYDROLOGY... As of 3 PM Sat...An area of increased lift will overlap with a moderately unstable, but anomalously moist, airmass today, supporting areas of intense rainfall rates. While the most intense rainfall rates will tend to be of relatively shorter duration at any one location, the rates may support a few instances of flash flooding. Initially there appears to be a locally higher risk along and south of Hwy 70 early this afternoon, then potentially shifting northward late this afternoon and early eve, north of the HWY 264 corridor where thunderstorms may be a bit more organized, potentially supporting a longer residence time of the higher rates. A Flood Watch was contemplated, but the coverage of thunderstorms may be scattered enough to limit the overall risk. This will continue to be re-evaluated tonight, with potential heavy rain threat cont Sun. Similar conditions will be possible on Sunday and Monday as a frontal boundary remains around the area which will continue to promote a heavy rain and isolated flash flooding threat across portions of ENC. && .MHX WATCHES/WARNINGS/ADVISORIES... NC...Beach Hazards Statement until 8 PM EDT this evening for NCZ195. MARINE...None. && $$ SYNOPSIS...MHX NEAR TERM...CQD SHORT TERM...CQD LONG TERM...RCF AVIATION...CQD/RCF MARINE...CQD/RCF HYDROLOGY...MHX