Thursday, January20, 2022
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Marine Weather and Tides
Leonard, MD

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 7:20AMSunset 5:17PM Thursday January 20, 2022 6:34 PM EST (23:34 UTC) Moonrise 7:58PMMoonset 9:15AM Illumination 88% Phase: Waning Gibbous; Moon at 18 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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ANZ542 Patuxent River To Broomes Island Md- 611 Pm Est Thu Jan 20 2022
.small craft advisory in effect through late Friday night...
Tonight..N winds 15 kt with gusts to 25 kt. Waves 1 ft. A slight chance of snow this evening.
Fri..N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
Fri night..N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. A chance of snow. Vsby 1 to 3 nm.
Sat..N winds 10 to 15 kt. Gusts up to 25 kt in the morning. Waves 1 ft.
Sat night..W winds 5 to 10 kt. Waves 1 ft.
Sun..W winds 5 kt. Waves less than 1 ft.
Sun night..NW winds 5 kt. Waves less than 1 ft.
Mon..SE winds 5 kt...becoming S after midnight. Waves 1 ft.
Tue..SW winds 5 to 10 kt...becoming nw. Waves 1 ft. A chance of showers through the night.
ANZ500 611 Pm Est Thu Jan 20 2022
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will gradually build across the waters tonight and Friday. A coastal low is expected to form off the carolinas which may bring strong winds to our waters Friday night into Saturday. Small craft advisories will be needed Friday night into this weekend.


7 Day Forecast for Marine Location Near Leonard, MD
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location: 38.28, -76.63     debug


Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 201937 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 237 PM EST Thu Jan 20 2022

SYNOPSIS.

An Arctic front will exit to the southeast this afternoon as Arctic high pressure builds over the region through Saturday morning. A coastal low will pass off-shore bringing a chance for wintry precipitation on Friday to southern MD. Another cold front is forecast to pass through the region on Sunday. A clip system may bring another chance for wintry precipitation during the early parts of next week.

NEAR TERM /THROUGH TONIGHT/.

The artic front that impacted our region this morning has sunk to the south of our region this afternoon and is currently situated over southeastern VA and the southern portions of the DELMARVA peninsula. Precipitation associated with the boundary continues to affect areas southeast of the DC and portions of central VA. Rain to a rain/snow mix is being reported in these areas and a transition to all snow is expected on the back edge of precipitation as cold air builds into the region. Behind the frontal passage, a strong northwesterly flow has formed which is advecting in cold and dry arctic air mass into the region. High temperatures for the day occurred this morning and temperatures are expected to slowly drop through this evening. Precipitation should fully shift off to the southeast by later this afternoon with dry conditions expected through the overnight periods.

Temperatures this evening will drop down into the teens for most areas and the single digits along the Allegheny front as an Arctic high pressure builds in slowly from the northwest. Some gusts of 10 15 mph will combine with chilly overnight temperatures to produce wind chills in the single digits for most of our region with near negative 15 along the Allegheny front. A Wind Chill Advisory is in effect for portions of the Allegheny front late this evening and into early Friday morning.


SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/.

High pressure will remain in place over our region through early Saturday morning with temperatures expected to remain well below freezing for most of this weekend. The coldest daytime temperatures will occur on Friday with highs expected to peak in the mid 20s. Dry conditions expected for most of our region through Saturday but a coastal low moving off-shore could bring some wintry precipitation to parts of southern MD late Friday into Saturday. Models continue to trend southeastward with the low and I suspect that even southern MD will remain dry this weekend. The coldest overnight temperatures are likely to occur Friday evening and into Saturday morning with with some areas along the Allegheny front potentially having lows below zero. As temperatures will be chilly once again, wind chill advisories may needed once again along the Allegheny front.

The coastal low is expected to pull away on Saturday and mostly dry conditions are expected. Temperatures will be slightly warmer in the upper 20s to low 30s with winds out of the north. Overnight lows will once again be chilly Saturday night in the teens.


LONG TERM /SUNDAY THROUGH THURSDAY/.

The overall pattern continues, with an upper trough sitting above the eastern CONUS while a ridge remains over the West. Several shortwaves are anticipated to swing through the trough in the extended period, the first of which is expected to swing trough the Ohio Valley Sunday into Monday. This system may bring upslope snow to the Alleghenies, with little to no accumulation expected.

The next system approaches the region on Tuesday, as a southern stream disturbance moves through the Southeast ahead of an upper trough in the northern stream digging into the Midwest. Guidance agrees in keeping the southern low to the south of the Mid- Atlantic, but disagree on the track of the northern stream system, leaving amounts and type of precip uncertain. WAA ahead of the front on Tuesday would suggest primarily rain outside of higher elevations, but the potential for wintry precip does exist.

AVIATION /20Z THURSDAY THROUGH TUESDAY/.

Ceilings are slowly improving at terminals this afternoon behind an exiting cold front. MVFR conditions will continue for the next few hours for the CHO and DCA terminals before becoming VFR. Gusty north to northwesterly winds of 15 of 20 knots are expected through this evening before becoming light overnight. VFR conditions expected at all terminals through Saturday with some broken to overcast clouds building in briefly on Friday for all terminals along the I-95 corridor from the southeast due to a coastal low. Winds expected to remain out of the north into Saturday.

VFR conditions are expected Sunday and Monday, with winds out of the west Sunday becoming more S/SW Monday. A cold front moves through Sunday, but precip is only anticipated along the Alleghenies. Otherwise, dry conditions are expected.

MARINE.

A northerly channeling winds behind a cold front will lead to Small Craft Advisory conditions through Friday. A coastal low moving off shore will likely bring further Small Craft Advisory conditions Friday night into Saturday.

Winds Sunday should remain below SCA criteria, but SCA conditions cannot be ruled out Monday following Sunday's frontal passage.

TIDES/COASTAL FLOODING.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . None. VA . Wind Chill Advisory from 10 PM this evening to 10 AM EST Friday for VAZ503-504. WV . Wind Chill Advisory from 10 PM this evening to 10 AM EST Friday for WVZ501-505-506. MARINE . Small Craft Advisory until 6 PM EST Friday for ANZ530>543.

SYNOPSIS . JMG NEAR TERM . JMG SHORT TERM . JMG LONG TERM . CAS AVIATION . JMG/CAS MARINE . JMG/CAS TIDES/COASTAL FLOODING .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SLIM2 - 8577330 - Solomons Island, MD 10 mi46 min N 9.9G15 34°F 40°F1024.2 hPa
PPTM2 - 8578240 - Piney Point, MD 11 mi46 min NNE 9.9G15
COVM2 - 8577018 - Cove Point LNG Pier, MD 15 mi46 min NNW 21G25 35°F 1024.5 hPa
44062 - Gooses Reef, MD 22 mi34 min N 19G31 32°F 39°F1016.5 hPa
LWTV2 - 8635750 - Lewisetta, VA 22 mi46 min NNE 11G17 34°F 40°F1024.3 hPa
NCDV2 22 mi52 min NNW 8G13 35°F 39°F1024.6 hPa
44042 - Potomac, MD 23 mi34 min N 16G27 31°F 40°F
BISM2 - 8571421 - Bishops Head, MD 32 mi46 min N 8G12 32°F 37°F1024 hPa
BSLM2 - Chesapeake Bay, MD 35 mi64 min ENE 5.1 34°F 1024 hPa26°F
CA2 - 8571892 - Cambridge, MD 36 mi46 min N 9.9G15 34°F 36°F1024.6 hPa
TPLM2 - Thomas Point, MD 44 mi34 min N 14G15 34°F 38°F1026.2 hPa (+2.5)
WASD2 - 8594900 - Washington, DC 46 mi46 min N 6G11 35°F 35°F1025.6 hPa
44063 - Annapolis 48 mi34 min N 14G19 32°F 38°F1026.6 hPa (+2.8)
APAM2 - 8575512 - Annapolis, MD 49 mi46 min NW 6G9.9 34°F 39°F1024.9 hPa

Wind History for Solomons Island, MD
(wind in knots)    EDIT      (on/off)   Help
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Last 24 hrSW14
G19
SW10
G13
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G12
SW7
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SW8
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NW1
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NW2
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G11
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G25
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G22
SW13
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W12
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W6
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G24
NW11
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G23
NW12
G20
W5
G9
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G9
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G18
W9
G17
W12
G17
W13
G21
W12
G17
W12
G17
W11
G16
W7
G10
W6

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St Marys County Airport, MD5 mi2.7 hrsN 04.00 miOvercast36°F34°F93%1023.4 hPa
Patuxent River, Naval Air Station, MD12 mi2.7 hrsN 142.00 miLight Snow Fog/Mist36°F33°F89%1023 hPa
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD14 mi2.7 hrsVar 52.00 miLight Snow Fog/Mist37°F35°F93%1022.5 hPa

Link to 5 minute data for K2W6

Wind History from 2W6 (wind in knots)
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Last 24 hrSW8SW7S5SW6SW4SW4S5SW7SW50000NW30N30NW4NW5N3N40N4NW3
1 day ago0000000SE30S3S4S5S6SW10SW8
G16
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2 days agoW14
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NW6W6SW6SW8W10
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W8SW60

Tide / Current Tables for Leonardtown, Breton Bay, Maryland
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Leonardtown
Click for Map
Thu -- 03:39 AM EST     1.46 feet High Tide
Thu -- 07:19 AM EST     Sunrise
Thu -- 09:15 AM EST     Moonset
Thu -- 09:44 AM EST     -0.04 feet Low Tide
Thu -- 03:49 PM EST     1.63 feet High Tide
Thu -- 05:15 PM EST     Sunset
Thu -- 07:57 PM EST     Moonrise
Thu -- 10:22 PM EST     -0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Leonardtown, Breton Bay, Maryland, Tide feet
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0.5
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0.9
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1.3
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1.4
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1.4
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1.3
6
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0.9
7
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0.5
8
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0.2
9
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0
10
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-0
11
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0.1
12
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0.4
1
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0.9
2
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1.3
3
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1.6
4
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1.6
5
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1.5
6
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1.1
7
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0.8
8
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0.4
9
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0.1
10
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-0
11
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-0


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 -- 01:07 AM EST     0.32 knots Max Flood
Thu -- 03:22 AM EST     -0.00 knots Slack
Thu -- 06:49 AM EST     -0.50 knots Max Ebb
Thu -- 07:19 AM EST     Sunrise
Thu -- 09:14 AM EST     Moonset
Thu -- 10:15 AM EST     0.00 knots Slack
Thu -- 12:46 PM EST     0.55 knots Max Flood
Thu -- 03:30 PM EST     -0.00 knots Slack
Thu -- 05:14 PM EST     Sunset
Thu -- 07:37 PM EST     -0.95 knots Max Ebb
Thu -- 07:57 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Point Patience, 0.1 mile southwest of, Maryland Current, knots
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0.1
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0.3
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0.3
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0.1
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-0.1
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-0.3
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-0.5
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-0.1
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-0.5
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-0.8
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-0.9
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-0.9
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-0.8
10
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-0.6
11
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-0.3


Weather Map
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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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