Friday, January28, 2022
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Marine Weather and Tides
Forestbrook, SC

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:13AMSunset 5:43PM Friday January 28, 2022 7:09 AM EST (12:09 UTC) Moonrise 3:50AMMoonset 1:52PM Illumination 16% Phase: Waning Crescent; Moon at 26 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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AMZ254 Coastal Waters From Little River Inlet To Murrells Inlet Sc Out 20 Nm- 620 Am Est Fri Jan 28 2022
.gale watch in effect from Saturday morning through Saturday afternoon...
Today..N winds 10 kt. Seas 2 to 3 ft. A chance of rain this afternoon.
Tonight..NW winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft. A chance of rain in the evening, then a chance of showers after midnight.
Sat..NW winds 25 to 30 kt with gusts to 35 kt, diminishing to 20 to 25 kt in the afternoon. Seas 3 to 5 ft. A chance of rain and snow showers in the morning.
Sat night..NW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft.
Sun..NW winds 10 to 15 kt, becoming sw in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft.
Sun night..W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Mon..NW winds 5 to 10 kt, becoming ne. Seas 2 to 3 ft.
Tue..NE winds 10 kt. Seas 2 to 3 ft.
AMZ200 620 Am Est Fri Jan 28 2022
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Low pressure will develop off the southeast coast today into tonight then move northeast and strengthen. This will create treacherous marine conditions tonight and continuing well into the upcoming weekend. High pressure returns for the start of next week.


7 Day Forecast for Marine Location Near Forestbrook, SC
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location: 33.74, -78.93     debug


Area Discussion for - Wilmington, NC
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FXUS62 KILM 281143 AFDILM

Area Forecast Discussion National Weather Service Wilmington NC 643 AM EST Fri Jan 28 2022

SYNOPSIS. Cool temperatures will continue today with increasing clouds. Low pressure will deepen as it moves up through the offshore waters bringing light rain this afternoon into this evening, mainly along the coast. A period of snow will follow overnight into early Saturday with accumulations up to an inch inland. Bitter cold weather this weekend will gradually warm through next week.

NEAR TERM /THROUGH TODAY/. High pressure extending into the Carolinas from the northeast will weaken as low pressure develops off the Southeast coast through today. A cold and very dry air mass remains in place this morning with N-NE winds and streaming mid to high clouds as increasing upper level jet runs up from SW to NE from base of digging trough up into the Carolinas. Although winds are near calm, these high clouds will prevent ideal radiational cooling in places, but thinning in other spots will allow temps to drop a bit more as dewpoint temps remain closer to 20 into early this morning. Temps should bottom out in the mid 20s to near 30 close to the coast.

Very shallow cool air will remain in place today as high pressure weakens. Mid to high level moisture will be on the rise in increasing winds aloft as mid to upper trough digs southward toward the Gulf coast as it tracks eastward from the Mississippi Valley. This will help to spawn an area of low pressure off the Southeast/Fl coast which will track northward, remaining well off the Carolina coast as it begins to deepen by this evening. Increasing isentropic lift will produce some mainly light rain into this aftn closer to the coast where deeper layer moisture will exist. Inland should mainly see increasing mid to high clouds while up to a tenth of an inch of rain will fall as you head eastward toward the coast. Temperatures should struggle to get through the 40s with thickening clouds and rain near the coast. Clouds may be thin enough in some spots to allow temps to jump a few degrees but overall expect them to top off near 50.

SHORT TERM /TONIGHT THROUGH SATURDAY/. Surface low pressure located 250 miles east of Cape Fear this evening should deepen rapidly as it moves northward. The last of the rain along the coast will end during the early evening as the warm conveyor aloft shifts offshore. While clouds will remain across the area, there should be a lull in precipitation that lasts through midnight inland and through 3 AM at the coast.

Upper level heights will plunge overnight as a jet streak (100 kt at 500 mb, and 120-130 kt at 300 mb) rotates through the base of an impressive trough across Georgia. Rather extreme mid level temperatures in the core of the deepening trough plus mid-level moisture of Pacific origin that crossed the Dakotas on Thursday will lead to accumulating light snow. Snow should develop west of I-95 by 2 AM Saturday, spreading eastward to the coast by 5-6 AM. Model QPF after the changeover has come into surprising agreement of around 0.10" across the Pee Dee region to 0.05" on the coast. As the dendritic growth zone plunges in altitude snow ratios will shift from 8:1 at the beginning of event to 14:1 at the end, making this an interesting event for any photographers wanting to see varying snow crystal types and sizes.

Up to one inch of snow is forecast inland with up to half an inch on the coast, driven by northwest winds gusting up to 30 mph. A Winter Weather Advisory is being issued for five inland counties, but only a small increase in forecast snow amounts would necessitate several more counties be added into the advisory. Florence, SC had measurable snow during the Jan 21-22 storm, but measurable snow has not fallen in Wilmington since January 4, 2018, and in Myrtle Beach since January 29, 2014.

Precipitation should end Saturday morning from west to east as the dendritic growth zone dries out aloft. Models over the past few days have trended a bit colder with 850 mb temps, now expected to bottom out near -12C Saturday afternoon. This will keep highs in the 30s to around 40, but with wind chills in the 20s. We're at the climatological minimum of the year for 850 mb temps, and -12C is around the climatological 10th percentile for the MHX (Newport/ Morehead City) upper air site.

LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/. The airmass Saturday night will be one of the two coldest of the season. Surface high pressure centered across the northeast Gulf will extend a ridge across Georgia and Carolinas late Saturday night leading to weakening winds. There likely won't be enough snow cover to dramatically influence low temperatures, but upper teens are still forecast inland with near 20 degrees at the coast. This is very similar to what was observed the morning of January 23.

A weak clipper will pass off the Mid Atlantic coast Sunday night, but should be accompanied by no sensible weather locally. High pressure building southward behind the clipper will shift winds onshore Tuesday and Wednesday, leading to a moderating trend in temperatures and dewpoints as the arctic air is replaced by an Atlantic modified airmass. A weak coastal front developing Wednesday in advance of low pressure over the lower Mississippi Valley will bring increasing clouds and perhaps some showers as early as Wednesday. Rain potential will increase Thursday as the low to our west develops further and Gulf moisture joins the low level Atlantic inflow across the Carolinas.Precipitation should end Saturday morning from west to east as the dendritic growth zone dries out aloft. Models over the past few days have trended a bit colder with 850 mb temps, now expected to bottom out near -12C Saturday afternoon. This will keep highs in the 30s to around 40, but with wind chills in the 20s. We're at the climatological minimum of the year for 850 mb temps, and -12C is around the climatological 10th percentile for the MHX (Newport/ Morehead City) upper air site.

AVIATION /12Z FRIDAY THROUGH TUESDAY/. VFR will continue as clouds increase and thicken into this afternoon with developing low pressure well off the Southeast coast. Gradient relaxes leaving mainly winds backing slowly up to 5 to 7 kt. Should see stratocu layer around 3500 to 4500ft ft at coastal terminals between 20z and 03z with some -ra but will diminish as low lifts northward. Inland terminals, LBT and FLO will have mid to high clouds mainly 9k-12k ft Fri aftn. Any lower clouds will come closer to 03-05z on the back end of low as mid to upper trough approaches spreading some -SN wrapping around the low. NW winds increasing up to 10 to 12 kts or so with gusts to 20 kts at this time with mainly MVFR ceilings and some light snow spreading eastward from inland terminals around 05z to coastal terminals after 09z.

Extended Outlook . VFR will dominate.

MARINE. Through Friday . Northeast winds 10-15 kts will prevail over local coastal waters into today, but should weaken as high pressure extending down from the northeast into inland Carolinas weakens as low pressure begins to move up the southeast coastline while strengthening into late Friday. Seas will lower to 2 to 3 ft as northerly winds weaken slightly and back to the NW becoming offshore.

Friday night through Tuesday . A broad area of low pressure between the Carolinas and Bahamas will tighten up into a bombing cyclone as it moves east of the Outer Banks tonight. Moderate northwest winds will suddenly surge to 25-35 knots prior to sunrise Saturday as a powerful upper level impulse pushes offshore. Falling temperatures will change rain over to snow across the nearshore waters before precipitation ends by noon. A Gale Watch is being issued for the potential of frequent gale force gusts, especially south of Cape Fear Saturday morning.

The low will remain a major feature on the weather map for the northeastern U.S. into Sunday, but a narrow ridge of high pressure will build across the Carolinas Sunday bringing lighter winds. A wave of low pressure moving off the Mid Atlantic coast Sunday night should bring a period of moderate offshore winds, but these winds will diminish on Monday. Low pressure developing across the lower Mississippi Valley should lead to increasing southeasterly winds and milder temperatures Tuesday.

ILM WATCHES/WARNINGS/ADVISORIES. SC . Winter Weather Advisory from 1 AM to 10 AM EST Saturday for SCZ017-023-024. NC . Winter Weather Advisory from 1 AM to 10 AM EST Saturday for NCZ087-096. MARINE . Gale Watch from Saturday morning through Saturday afternoon for AMZ250-252-254-256.

SYNOPSIS . ILM NEAR TERM . RGZ SHORT TERM . TRA LONG TERM . TRA AVIATION . RGZ MARINE . TRA/RGZ


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MROS1 - 8661070 - Springmaid Pier, SC 6 mi52 min 33°F
41024 - Sunset Nearshore (SUN 2) 25 mi62 min NE 9.7G16 37°F 48°F1019.8 hPa
SSBN7 25 mi59 min 47°F2 ft
NIWS1 - North Inlet-Winyah Bay Reserve, SC 30 mi85 min NNW 4.1 33°F 1019 hPa21°F
41108 48 mi40 min 49°F3 ft

Wind History for Springmaid Pier, SC
(wind in knots)    EDIT      (on/off)   Help
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Last 24 hrN11
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G10

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Myrtle Beach International Airport, SC3 mi74 minNNW 710.00 miFair30°F21°F69%1019.7 hPa
North Myrtle Beach Grand Strand Airport, SC12 mi77 minN 010.00 miFair30°F21°F69%1019.2 hPa
Conway Horry County Airport, SC12 mi75 minN 010.00 miFair28°F23°F80%1020 hPa

Link to 5 minute data for KMYR

Wind History from MYR (wind in knots)
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Last 24 hrN6NE8N8
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1 day agoN4NE9N12NE8
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6N7N8N8N6N6N8N7N7NE6N7NE7N6NE7N95N66
2 days agoSW4S4W6W4W3W6SE5SE60S5S6S7S3S300000N4N4N6N7N8

Tide / Current Tables for Myrtle Beach, Combination Bridge, ICWW, South Carolina
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Myrtle Beach
Click for Map
Fri -- 01:34 AM EST     -0.13 feet Low Tide
Fri -- 03:50 AM EST     Moonrise
Fri -- 06:43 AM EST     2.03 feet High Tide
Fri -- 07:14 AM EST     Sunrise
Fri -- 01:51 PM EST     Moonset
Fri -- 02:33 PM EST     0.19 feet Low Tide
Fri -- 05:42 PM EST     Sunset
Fri -- 06:56 PM EST     1.63 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Myrtle Beach, Combination Bridge, ICWW, South Carolina, Tide feet
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0.6


Tide / Current Tables for Myrtle Beach (Springmaid Pier), South Carolina
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Myrtle Beach (Springmaid Pier)
Click for Map
Fri -- 03:39 AM EST     5.44 feet High Tide
Fri -- 03:50 AM EST     Moonrise
Fri -- 07:14 AM EST     Sunrise
Fri -- 10:10 AM EST     -0.01 feet Low Tide
Fri -- 01:51 PM EST     Moonset
Fri -- 03:58 PM EST     4.22 feet High Tide
Fri -- 05:42 PM EST     Sunset
Fri -- 10:09 PM EST     -0.53 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Myrtle Beach (Springmaid Pier), South Carolina, Tide feet
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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