Thursday, November21, 2019 L-36.com


Marine Weather and Tides
St. George Island, MD

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:54AMSunset 4:52PM Thursday November 21, 2019 4:34 PM EST (21:34 UTC) Moonrise 12:54AMMoonset 2:12PM Illumination 27% Phase: Waning Crescent; Moon at 24 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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ANZ537 Tidal Potomac From Cobb Island To Smith Point- 337 Pm Est Thu Nov 21 2019
.small craft advisory in effect from 8 pm est this evening through late tonight...
Rest of this afternoon..W winds 5 kt. Waves less than 1 ft.
Tonight..SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Fri..W winds 10 to 15 kt...becoming nw late. Gusts up to 20 kt. Waves 1 to 2 ft. Numerous showers.
Fri night..N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Sat..E winds 5 kt. Waves less than 1 ft. Rain likely.
Sat night..SW winds 5 to 10 kt with gusts to 20 kt. Waves 2 ft. Rain.
Sun..NW winds 10 to 15 kt. Waves 2 ft.
Mon..S winds 5 to 10 kt. Waves 1 ft.
ANZ500 337 Pm Est Thu Nov 21 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will cross the area through tonight. A cold front will cross the region on Friday, and another low pressure system will arrive by late Saturday. Small craft advisories may be needed Friday, and again later in the weekend.


7 Day Forecast for Marine Location Near St. George Island CDP, MD
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location: 38.04, -76.5     debug


Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 212005 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 305 PM EST Thu Nov 21 2019

SYNOPSIS. High pressure will move south and away from our area into tonight. A cold front will move across on Friday. Low pressure will move across late Saturday into Sunday. High pressure will likely return early next week before another front impact our area by mid week.

NEAR TERM /THROUGH TONIGHT/. High pressure will continue to move to our south as a cold front approaches from the west with ridging aloft. Clouds will continue to overspread over our area as flow becomes southerly. This will allow low temperatures to be above normal tonight, dropping into the 40s.

SHORT TERM /FRIDAY MORNING THROUGH SATURDAY NIGHT/. A cold front will be moving across our area on Friday morning into the early afternoon with high temperatures occurring before that. Rain showers associated with this front will start in the morning hours west of the Blue Ridge and overspreading east into the afternoon. QPF max values are along and west of the Allegheny Front and near central Virginia into southern Maryland. Highest values seems to be between two tenth and half an inch of rain. Sounding profiles suggest snow may be seen over a few areas near the Allegheny Front behind the front late Friday afternoon/evening.

A high pressure will build behind the front Friday night into early Saturday bringing dry and cool air into our region. Low temperatures Friday night will be in the upper 20s into the mid 30s.

A low pressure system with plenty of moisture will move from the southwest into our region on Saturday as mid-level low pushes east into our region from the Midwest. This system will be over or near our area on Saturday night. Precipitation will overspread the region from the southwest into the northeast, with rain over most of our region, but wintry mix could occur near and over the ridge tops as suggested by soundings.

LONG TERM /SUNDAY THROUGH THURSDAY/. Wave of low pressure will be exiting stage right early Sunday, with dry weather likely to prevail. Temperatures will remain a bit below normal, but not by a large margin. High pressure will slide by to the south Monday into Tuesday. While temperatures likely stay fairly steady Monday, southerly flow as the high heads off the coast Tuesday should allow temps to rise back to near or even a bit above normal. Rain may infringe on the area by Tuesday night as another wave of low pressure lifts northeastward to our west, followed by a cold frontal passage during early Wednesday. Downslope flow with a Pacific air mass may help Wednesday turn out on the mild side, even warmer than Tuesday, but temps will cool as Canadian high pressure slides south for Thursday.

AVIATION /THURSDAY THROUGH TUESDAY/. Overcast but VFR conditions are expected for the remainder of today and into early Friday. A cold front will be moving across our region Friday bringing rain showers over the terminals through the day Friday with periods of sub-VFR conditions and gusty winds, up to 20 knots. Cloud cover will decrease in the evening hours, but some gusty winds could still linger around, but should become light overnight Saturday. VFR conditions expected Saturday before a low pressure system that will move across our area late Saturday. Rain will move into the terminals on Saturday bringing sub-VFR conditions at times.

VFR should prevail Sunday and Monday with high pressure.

MARINE. A Small Craft Advisory is in place for tonight. Another one may be needed for Friday afternoon as cold front moves across. This will be evaluated by the evening shift. Winds should diminish Friday night into Saturday before a low pressure system impacts us on Saturday night.

SCA can't be ruled out immediately behind the departing low pressure Sunday, but by Monday sub-SCA conditions are expected.

TIDES/COASTAL FLOODING. Southerly to southwesterly flow will increase a bit over the next 12 to 24 hours, resulting in increasing water levels. This may result in near minor flooding at Annapolis tonight and tomorrow, though ETSS and ESTOFS are notably lower than CBOFS and SNAP-ex mean. Split the difference since southwesterly flow doesn't usually result in quite as high water levels, thus with current forecast no headlines are needed, but will require close monitoring the next day or so.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . None. VA . None. WV . None. MARINE . Small Craft Advisory from 8 PM this evening to 6 AM EST Friday for Anz530>543.

SYNOPSIS . IMR NEAR TERM . IMR SHORT TERM . IMR LONG TERM . RCM AVIATION . IMR/RCM MARINE . IMR/RCM TIDES/COASTAL FLOODING . DHOF


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LWTV2 - 8635750 - Lewisetta, VA 4 mi52 min Calm G 0 50°F 47°F1022.2 hPa
PPTM2 - 8578240 - Piney Point, MD 7 mi46 min Calm G 1.9
44042 - Potomac, MD 9 mi28 min S 5.8 G 5.8 50°F 52°F1024.6 hPa
SLIM2 - 8577330 - Solomons Island, MD 20 mi52 min SE 5.1 G 6 49°F 51°F1021.3 hPa
BISM2 - 8571421 - Bishops Head, MD 27 mi52 min SW 4.1 G 5.1 48°F 49°F1022 hPa
NCDV2 34 mi52 min ESE 4.1 G 4.1 51°F 51°F1020.7 hPa
44062 - Gooses Reef, MD 36 mi52 min S 7.8 G 9.7 48°F 1022.2 hPa
CA2 - 8571892 - Cambridge, MD 43 mi52 min Calm G 1 48°F 48°F1021.3 hPa
RPLV2 - 8632837 - Rappahannock Light, VA 43 mi46 min Calm G 1.9 1023.1 hPa
YRSV2 - Chesapeake Bay,VA 45 mi64 min Calm 52°F 1023 hPa37°F

Wind History for Lewisetta, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD8 mi3.7 hrsSW 610.00 miFair53°F34°F48%1022.9 hPa
Patuxent River, Naval Air Station, MD18 mi1.7 hrsSE 710.00 miMostly Cloudy51°F37°F59%1021.7 hPa
St Marys County Airport, MD19 mi59 minSW 3 miFair52°F32°F47%1022 hPa
Tappahannock-Essex County Airport, VA24 mi39 minSW 310.00 miFair53°F33°F47%1022.3 hPa

Link to 5 minute data for KNUI

Wind History from NUI (wind in knots)
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Last 24hrW12
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NW6NW6W5NW34NW6NW5NW64W5NW53CalmCalmW3NW45--SW7SW6----SW4
1 day agoCalmCalmCalmCalmCalmCalmSW4W3W4W4W3W4NW433NW5NW4NW5NW6NW7NW10
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Tide / Current Tables for Lynch Point, Yeocomico River, Virginia
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Point Patience, 0.1 mile southwest of, Maryland Current
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Point Patience
Click for MapFlood direction 315 true
Ebb direction 145 true

Thu -- 12:03 AM EST     -0.83 knots Max Ebb
Thu -- 12:53 AM EST     Moonrise
Thu -- 04:14 AM EST     0.00 knots Slack
Thu -- 06:21 AM EST     0.48 knots Max Flood
Thu -- 06:53 AM EST     Sunrise
Thu -- 09:06 AM EST     -0.00 knots Slack
Thu -- 12:47 PM EST     -0.65 knots Max Ebb
Thu -- 02:12 PM EST     Moonset
Thu -- 04:43 PM EST     0.00 knots Slack
Thu -- 04:49 PM EST     Sunset
Thu -- 06:34 PM EST     0.37 knots Max Flood
Thu -- 08:51 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Weather Map
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wmap_A
GEOS Local Image of Mid-Atlantic    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Baltimore, MD/Washington (16,3,4,5)
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Ground Weather Radar Station Dover AFB, DE
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