Marine Weather Net

Cape Lookout to Surf City, NC out 20 NM Marine Forecast


TONIGHT

SW
WINDS
15 - 25
KNOTS

FRI

SW
WINDS
15 - 20
KNOTS

FRI NIGHT

SW
WINDS
15 - 20
KNOTS

SAT

SW
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
AMZ158 Forecast Issued: 357 PM EDT Thu Jul 18 2019

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
Tonight...Sw Winds 15 To 25 Kt. Seas 4 To 6 Ft. Dominant Period 6 Seconds. Adjacent Sounds And Rivers Choppy. A Slight Chance Of Showers And Tstms.
Fri...Sw Winds 15 To 20 Kt. Seas 3 To 5 Ft. Dominant Period 5 Seconds. Adjacent Sounds And Rivers Choppy. A Chance Of Showers And Tstms, Mainly In The Morning.
Fri Night...Sw Winds 15 To 20 Kt. Seas 3 To 5 Ft. Dominant Period 5 Seconds. Adjacent Sounds And Rivers Choppy. A Chance Of Showers And Tstms.
Sat...Sw Winds 10 To 15 Kt, Increasing To 15 To 20 Kt In The Afternoon. Seas 3 To 4 Ft. Dominant Period 5 Seconds. Adjacent Sounds And Rivers A Moderate Chop, Increasing To Choppy In The Afternoon. A Chance Of Showers And Tstms.
Sat Night...Sw Winds 15 To 20 Kt, Diminishing To 10 To 15 Kt After Midnight. Seas 2 To 4 Ft. Adjacent Sounds And Rivers Choppy, Diminishing To A Moderate Chop After Midnight. A Chance Of Showers And Tstms.
Sun...Sw Winds 10 To 15 Kt. Seas 2 To 4 Ft. Adjacent Sounds And Rivers A Moderate Chop. A Chance Of Showers And Tstms In The Morning.
Sun Night...Sw Winds 15 To 20 Kt. Seas 3 To 5 Ft. Adjacent Sounds And Rivers Choppy. A Chance Of Showers And Tstms After Midnight.
Mon...Sw Winds 15 To 20 Kt. Seas 3 To 5 Ft. Adjacent Sounds And Rivers Choppy. A Chance Of Showers And Tstms.
Tue...Sw Winds 10 To 15 Kt. Seas 3 To 5 Ft. Adjacent Sounds And Rivers A Moderate Chop. Showers And Tstms Likely. Winds And Seas Higher In And Near Tstms.
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Area Forecast Discussion
National Weather Service Newport/Morehead City NC
734pm EDT Thu July 18 2019

Synopsis: The area will remain between subtropical high pressure offshore and a weak troughing inland through early next week. A front will approach and stall near the area by the middle of next week.

Near Term - Until 6am Friday Morning
As of 720pm Thurs...Most precipitation has either moved offshore or weakened this evening, however scattered thunderstorms over central NC are expected to move into Eastern NC later this evening and into the first part of tonight. Most convection should dissipate by midnight, with just some offshore thunderstorms expected overnight, though couldn't rule out a shower along the immediate coast. Very warm temps will continue overnight with lows expected in the upper 70s to low 80s

Short Term - 6am Friday Morning Through 6pm Friday
As of 330pm Thurs...More of the same pattern with surface high pressure well offshore and inland trough, while heigheights aloft gradually build back in. The main story for tomorrow will be the heat and humidity...will issue a heat advisory for the area, with heat indices reaching 105 to 110 degrees. Expect scattered showers and thunderstorms to develop mainly along the sea breeze as the atmosphere becomes quite unstable. Expect highs in the mid to upper 90s inland and upper 80s to low 90's along the beaches

Long Term - Friday Night Through Thursday
As of 305pm Thursday...The long term period will be characterized by mainly zonal upper level flow across the northern CONUS with the southern U.S. stuck under a broad ridge through the end of the week. By the beginning of next week, a deepening low over the Gulf of Alaska will help promote a more amplified pattern across the CONUS with strong ridging over the west and a deepening trough over the east. The resultant impacts to eastern NC weather is a typical summer surface pattern into early next week with high pressure over the western Atlantic and a trough of low pressure inland. By the end of the period, the more pronounced upper troughing will help push a front into the region and increase precipitation coverage.

Saturday and Sunday...Continued hot and very humid for the weekend with similar temperatures both days. Thicknesses increase with 850 mb temps reaching 20+ C across eastern NC. As the upper level trough begins to amplify to the west. heigheights will fall some Sunday, but temperatures will be very similar. Expect highs over the weekend to average in the mid to upper 90s. Dew points remain high and heat indices will range 105 to 110. Scattered convection is possible along the sea breeze each day but with the ridge firmly in control coverage will be limited. Capping PoPs at 30% for the period.

Monday thru Wed...A break in the heat is finally in sight as the upper level trough amplifies, dropping heigheights across the region and helping to usher a front south across the mid- Atlantic and into the Carolinas by mid-week. While there are still model differences regarding timing and progression of the front Tuesday into Wednesday, guidance agreement has increased and have increased Probability of Precipitation to likely for Tuesday into Tuesday night, with likelies continuing along the coast for Wednesday. The front will be accompanied with deep moisture and a pronounced mid-level shortwave. It should be noted the front is expected to stall with plenty of moisture (PWATS of 2+ inches) and multiple subtle lobes of mid-level vorticity riding along the boundary. Thus some respectable rainfall totals are possible, although the question of where the front stalls remains unanswered. Behind the front highs will struggle to crack 90, and fall even further by the middle of the week

.AVIATION /00Z FRIDAY THROUGH TUESDAY/... Short Term /Through Tomorrow Evening/... As of 730pm Thurs...VFR conditions are expected through the TAF period. Some scattered thunderstorms are possible this evening across the coastal plain, but then the area will be mostly dry overnight. Scattered thunderstorms will again develop by tomorrow afternoon, with brief periods of sub-VFR conditions possible.

Long Term /Friday night through Tuesday/... As of 250pm Thursday...Typical summertime pattern this period with high pressure offshore and a trough of low pressure inland, with mainly isolated showers and thunderstorms Saturday and Sunday. As ridge shifts farther offshore on Monday may see an uptick in convection. A cold front will approach from the northwest late Monday, helping to focus showers/thunderstorms along it as it crosses into Eastern NC through Tuesday. Patchy fog or stratus will be possible early each morning, especially any areas that receive rain

Marine Discussion
Short Term /Through Tonight/... As of 330pm Thu...The latest buoy obs are showing SW winds 15-20 knots with gusts up to 25 knots and seas are 2-3 north of Oregon Inlet and 4-5 ft south. Expect southwesterly winds to continue with wind gusts reaching up to 30 kt late this evening. A Small Craft Advisory remains in effect for the coastal waters and sounds south of Oregon Inlet, with the potential for occasional winds to 25 kt across the Croatan and Roanoke Sounds through late afternoon, but the duration too short to justify inclusion in the SCA. The SW gusty winds will gradually diminish overnight, but SW 15-20 knot will continue through Friday. Seas will gradually build to 4 to 6 ft tonight, and subside Friday morning to 3-5 ft.

Long Term /Friday night through Tuesday/... As of 255pm Thursday...The pressure gradient will relax some Friday night through Sunday with winds dropping to 10 to 20 kts and seas 3 to 5 ft. A cold front will approach from the northwest late Monday into Monday night, increasing the pressure gradient across the waters with SW winds increase again to 15 to 25 kt Monday with seas 4-6 ft, highest for the central coastal waters. The front shifts closer to Eastern NC waters on Tuesday, shifting the strongest gradient farther offshore, allowing SW winds to diminish 10-20 kt and seas mostly 3-4 ft

NOAA Newport/Morehead City NC Office - Watches - Warnings - Advisories
NC...Heat Advisory until 7pm EDT this evening for NCZ029-044>047- 079>081-090>092-094-193>196-198-199-203>205. Heat Advisory from 11am to 7pm EDT Friday for NCZ029-044>047- 079>081-090>092-094-193>196-198-199-203>205.
MARINE...
Small Craft Advisory until 4am EDT Friday for AMZ135(Pamlico Sound).
Small Craft Advisory until 8am EDT Friday for AMZ152-154.
Small Craft Advisory until 6am EDT Friday for AMZ156-158.