Thursday, April22, 2021
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Marine Weather and Tides
Columbia, SC

Version 3.4
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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 6:42AMSunset 8:02PM Thursday April 22, 2021 6:08 AM EDT (10:08 UTC) Moonrise 2:07PMMoonset 3:14AM Illumination 79% Phase: Waxing Gibbous; Moon at 10 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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7 Day Forecast for Marine Location Near Columbia, SC
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location: 34.03, -80.9     debug


Area Discussion for - Columbia, SC
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FXUS62 KCAE 220732 AFDCAE

Area Forecast Discussion National Weather Service Columbia SC 332 AM EDT Thu Apr 22 2021

SYNOPSIS. A Frost Advisory is in effect this morning across the northern and western Midlands. High pressure moving into the area today will move offshore Friday. A dry airmass will continue our elevated fire risk today. A low pressure system will bring showers and thunderstorms Friday night into Saturday night. High pressure returns Sunday with dry weather and moderating temperatures through the middle of next week.

NEAR TERM /THROUGH TONIGHT/. Temperatures have continued falling across the region tonight as the surface high continues to push into the region. Winds have really fallen off over the last 2-3 hours across most areas, and we have cancelled the Lake Wind Advisory for all areas, with the exception of Lake Marion. The Advisory remains in effect for that lake until 8 am. Otherwise, light winds across the area will continue to favor temperatures dropping into the mid and upper 30s everywhere by 8am this morning. Some areas will see frost, so we have continued the Frost Advisory for our northern counties; though, I don't expect it to be a widespread frost by any means.

Today looks absolutely beautiful. Surface high pressure will shift directly over the region, and with anomalously dry air in place, we likely won't see any clouds this afternoon. Light winds this morning will slowly increase into the 8-12 mph range out of the west and northwest. The sunshine will lead to deep mixing, which will lead to another day of very low RH values across the area. With winds being much lighter today, we're only issuing a Fire Danger Statement for the area. I went lower than model guidance for dewpoints across the area as downsloping winds will help to dry us out even more. Additionally, I went a bit higher than model mean for highs - generally 65F to 70F. Overnight, ideal radiational cooling conditions will set up with light winds and clear skies. Expect lows in the upper 30s across the region.

SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/. Weak upper level ridging will be over the region Friday. At the surface, high pressure over the region during the morning will move offshore during the afternoon. Low level southerly winds will begin to increase moisture with pwats around three quarters of an inch by late afternoon. Models also indicated increasing high level clouds. Dry weather will continue Friday with below normal temperatures in the upper 60s to mid 70s.

An upper trough over the Southern Plains will move east, crossing our area Sunday morning. Surface low system over Texas will move northeast, cross our area Saturday night. Ahead of the surface low A 60-70 knot southerly low level jet will cross the area Saturday with deep moisture and upper forcing. Models indicate a warm front lifting northward across the forecast area. Cannot rule out strong to severe thunderstorms along the warm front and ahead of the cold front during the afternoon. Will continue the chance for showers increasing late Friday night with widespread showers and possible thunderstorms Saturday into Saturday night. Locally heavy rainfall also possible. Clouds and precipitation will keep high temperatures below normal on Saturday.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. High pressure builds in behind the low pressure system Sunday through Wednesday. Dry weather will return. Rising heights will bring seasonable temperatures through the middle of next week.

AVIATION /06Z THURSDAY THROUGH MONDAY/. VFR conditions are present across the area, and will continue through the period. There really isn't much to say on this one. High pressure will gradually move into the region tonight through the end of the period. A very dry airmass will settle into the area and keep skies clear and any threat of fog negligible. Winds will gradually settle down into the 3-6 knot range by early this morning, rising up again this afternoon to 6-10 knots everywhere, with some brief gusts to 15 knots possible. This will be out of the west and northwest. By sunset, winds are expected to generally go light and variable for tonight under clear skies. In short, a simple forecast period.

EXTENDED AVIATION OUTLOOK . Rain with CIG/VSBY restrictions possible late Friday night through Saturday night.

FIRE WEATHER. Cool and dry conditions expected today with the relative humidity dropping to the 15-20 percent range and wind gusts in the 10 to 15 mph range. The fire risk will be handled with a Fire Danger Statement.

CAE WATCHES/WARNINGS/ADVISORIES. GA . Frost Advisory until 8 AM EDT this morning for GAZ040. SC . Frost Advisory until 8 AM EDT this morning for SCZ016-018- 020>022-025-026-115-116. Lake Wind Advisory until 8 AM EDT this morning for SCZ037-038- 137.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LMFS1 - Lake Murray SC 20 mi48 min NW 1 G 5.1 40°F
WATS1 - Lake Wateree, SC 24 mi38 min NNW 4.1 G 6 39°F 1021 hPa

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Columbia - Jim Hamilton L.B. Owens Airport, SC6 mi75 minVar 310.00 miFair41°F23°F49%1021.6 hPa
McEntire Air National Guard Weather Facility Base, SC9 mi12 minN 010.00 miFair35°F25°F68%1021.6 hPa
Columbia, Columbia Metropolitan Airport, SC13 mi72 minNNW 310.00 miFair41°F21°F45%1021.3 hPa
Shaw Air Force Base, SC23 mi12 minN 010.00 miFair37°F25°F62%1021.4 hPa
Winnsboro/Fairfield County Airport, SC23 mi73 minNW 310.00 miFair32°F27°F80%1021 hPa

Link to 5 minute data for KCUB

Wind History from CUB (wind in knots)
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Last 24hrCalmW6SW4W9W13
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N74CalmCalmCalm3NW3
1 day agoCalmCalmCalmSE3S6S7S74SE7S8S10S7S7CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoCalmCalmW6W85W10NW8
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N733NW5NW4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Pimlico, West Branch, Cooper River, South Carolina
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Pimlico
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Thu -- 02:04 AM EDT     0.69 feet Low Tide
Thu -- 04:07 AM EDT     Moonset
Thu -- 06:41 AM EDT     Sunrise
Thu -- 07:37 AM EDT     1.80 feet High Tide
Thu -- 02:44 PM EDT     0.59 feet Low Tide
Thu -- 03:04 PM EDT     Moonrise
Thu -- 07:55 PM EDT     Sunset
Thu -- 08:16 PM EDT     1.68 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.70.70.811.31.61.81.81.71.51.210.80.60.60.711.31.61.71.61.51.3

Tide / Current Tables for Jamestown Bridge, Santee River, South Carolina
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Jamestown Bridge
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Thu -- 04:07 AM EDT     Moonset
Thu -- 04:39 AM EDT     0.23 feet Low Tide
Thu -- 06:39 AM EDT     Sunrise
Thu -- 08:35 AM EDT     1.17 feet High Tide
Thu -- 03:03 PM EDT     Moonrise
Thu -- 05:19 PM EDT     0.20 feet Low Tide
Thu -- 07:54 PM EDT     Sunset
Thu -- 09:14 PM EDT     1.09 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.50.40.30.20.30.50.91.11.21.110.80.70.50.40.30.20.30.60.91.11.11

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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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