Wednesday, December11, 2019
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Marine Weather and Tides
Montross, VA

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 7:13AMSunset 4:48PM Wednesday December 11, 2019 11:06 AM EST (16:06 UTC) Moonrise 4:36PMMoonset 6:26AM Illumination 100% Phase: Full Moon; Moon at 15 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- 937 Am Est Wed Dec 11 2019
.small craft advisory in effect through Thursday morning...
Rest of today..NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Tonight..N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Thu..NE winds 5 to 10 kt. Waves 1 to 2 ft.
Thu night..NE winds 5 kt. Waves less than 1 ft.
Fri..NE winds 5 kt. Waves less than 1 ft. Rain likely.
Fri night..E winds 5 to 10 kt. Waves 1 ft. Rain.
Sat..W winds 10 to 15 kt. Waves 1 ft. Showers likely through the day, then a chance of showers through the night.
Sun..W winds 10 to 15 kt...becoming nw 5 to 10 kt after midnight. Waves 1 to 2 ft.
ANZ500 937 Am Est Wed Dec 11 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build across the region today through Thursday. Low pressure system developing over the northern gulf of mexico will move northeastward toward the region Friday into Saturday. Small craft advisories may be needed Saturday.


7 Day Forecast for Marine Location Near Montross, VA
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location: 38.1, -76.73     debug


Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 111141 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 641 AM EST Wed Dec 11 2019

SYNOPSIS. High pressure builds into the area today and tonight. Low pressure develops along the Gulf Coast Friday, then tracks northeast along the eastern seaboard over the upcoming weekend.

NEAR TERM /UNTIL 6 PM THIS EVENING/. As of 640 AM EDT Wednesday .

The pcpn is quickly shifting east this morning and will end west to east by noon. Had a burst of wet snow from RIC on north along I95 an hour ago which coated the ground in places. Otw, models continue to show a rapid decrease in clouds right after the pcpn ends with skies becoming sunny this aftrn. CAA keeps it cold despite the aftrn sunshine. Highs 40-45.

SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY NIGHT/. As of 215 AM EST Wednesday .

Clear/cold tonite as the center of the 1040 mb high tracks ene ivof the Mason-Dixon line. A secondary CAA surge will keep the winds up over the waters and right along the coast, but expect decoupling west of the bay. Lows in the 20s to around 30 se.

The high slowly pushes off to the ne Thurs. Cold despite ample sunshine although some aftrn SC will apprch the coast due to the persistant ne flow. Highs from the upr 30s nw to mid 40s se.

The high pushes off the New England coast Thurs nite. Moisture from the dvlpng systm to the ssw increases along a sfc trof ivof the mts while addntl moisture is noted along a Carolina coastal trof. Dry air in the lwr levels should keep it dry thru 12Z Fri with the exception of some rain creeping up from ern NC. Will increase the cloud coverage in the grids but keep it dry as the models show ridging east of the mts across the rgn. Lows in the upr 20s NW to lwr 40s SE but will likely steady out or rise a bit towards sunrise as the clouds come in.

The ridging slowly breaks down Fri with WAA moisture overspreading the area from the ssw throughout the day. The deepest moisture will come up from the sw during the aftrn. Thus, will have chc morning PoPs becoming likely during the aftrn. Depending on how fast the pcpn comes in, low lvl thicknesses suggest a possible brief period of fz rain across nwrn most (climo favored) zones at the onset. Highs from arnd 40 over the wrn most zones due to the insitu-wedge ranging to near 60 across the nrn OB.

Widespread rain Fri nite (cat PoPs) as low pressure tracks ne along the Mid Atlantic coastal plain. Lows upr 30s NW to lwr 50s SE.

LONG TERM /SATURDAY THROUGH TUESDAY/. As of 215 AM EST Wednesday .

Low pressure tracks northeast Saturday and into interior New England and Quebec, giving the area a dry northwest flow for Sunday. pcpn Sat morning, tapers off in the aftrn as trailing cold front pushes east. Highs Sat range from near 50 NW to lwr 60s SE. Lows Sat nite upr 30s nw to mid 40s SE. dry Sun with highs in the low-mid 50s.

Dry conditions will continue into Monday as a cold area of high pressure moves southeast across the Great Lakes Sunday night into Monday morning. High pressure will be centered over the area Monday with high temperatures on Monday in the mid 40s and lows Monday night in the low 30s. Models are indicating that another area of low pressure will develop in the northern Gulf of Mexico and track into the Mid-Atlantic Tuesday, bringing the next chance of rain, and possibly wintry precip for the onset of precip.

AVIATION /12Z WEDNESDAY THROUGH SUNDAY/. As of 630 AM EST Wednesday .

SCT-BKN IFR CIGS in areas of rain (rain/snow mix at RIC/SBY) will continue for the next 1-3 hrs. Pcpn quickly ends along with rapidly improving CIGS to VFR as high pressure quickly builds east after 16Z. Only SCT clouds along the coast by late in the day. Gusty north winds (15-25 kts) this morning diminish to 10 kts or less after 18Z.

OUTLOOK . VFR conditions cont thru Thurs nite as high pressure tracks nne of the area. The next systm brings rain and degraded flight conditions Friday through Saturday.

MARINE. As of 320 AM EST Wednesday .

The cold front has moved south and east of the waters and in its wake, N to NW winds have increased to around 15 to 25 knots with gusts to 30 knots. These wind speeds will continue through the early morning hours before diminishing later this morning and this afternoon. Did not make any changes to the Small Craft Advisories on this update. A second surge of CAA is expected later this evening and tonight (that does appear weaker than the current surge this morning, but still in the 15 to 20 knot range) before high pressure builds over the local waters Thursday. An additional round of SCAs will likely be needed for at least the Chesapeake Bay, Currituck Sound, and Lower James for this next round. High pressure drifts off to the NE later Thursday through Thursday night with low pressure developing along the Gulf Coast Friday and eventually tracking north to the Mid-Atlantic Saturday.

Seas generally range from 4 to 6 feet this morning while waves in the Bay range from 2 to 4 feet. Expect seas to remain elevated to at or above 5 feet (especially out 20 nm) into potentially Thursday. Seas decrease below SCA thresholds later Thursday for all locations minus the southern coastal waters where these conditions may linger through Friday. Seas build this weekend as the next system impacts the area.

AKQ WATCHES/WARNINGS/ADVISORIES. MD . None. NC . None. VA . None. MARINE . Small Craft Advisory until 1 PM EST this afternoon for ANZ632>634. Small Craft Advisory until 10 AM EST this morning for ANZ630- 631-638. Small Craft Advisory until 9 AM EST Thursday for ANZ654. Small Craft Advisory until 7 PM EST Thursday for ANZ656-658. Small Craft Advisory until 6 AM EST Thursday for ANZ650-652.

SYNOPSIS . MPR NEAR TERM . MPR SHORT TERM . MPR LONG TERM . CP/MPR AVIATION . MPR MARINE . AJB


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PPTM2 - 8578240 - Piney Point, MD 11 mi66 min NNW 19 G 23
LWTV2 - 8635750 - Lewisetta, VA 16 mi66 min NNW 14 G 22 38°F 46°F1029.2 hPa (+2.4)
44042 - Potomac, MD 21 mi78 min 40°F 47°F
SLIM2 - 8577330 - Solomons Island, MD 21 mi66 min NW 8.9 G 19 37°F 47°F1028.5 hPa (+2.6)
NCDV2 22 mi66 min NNW 8 G 14 38°F 49°F1028.6 hPa (+2.1)
44062 - Gooses Reef, MD 36 mi54 min NNW 16 G 18 37°F 1030.2 hPa
BISM2 - 8571421 - Bishops Head, MD 38 mi66 min NNW 9.9 G 13 37°F 45°F1029 hPa (+2.2)
44058 - Stingray Point, VA 45 mi66 min N 12 G 14 48°F1 ft1032.9 hPa
BSLM2 - Chesapeake Bay, MD 47 mi156 min NW 4.1 34°F 1027 hPa27°F
CA2 - 8571892 - Cambridge, MD 48 mi66 min NW 13 G 19 37°F 45°F1028.4 hPa (+2.2)

Wind History for Piney Point, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD16 mi73 minNW 910.00 miFair40°F34°F79%1028.6 hPa
St Marys County Airport, MD18 mi71 minNW 4 miFair36°F28°F75%1029.5 hPa
Tappahannock-Essex County Airport, VA19 mi71 minNNW 510.00 miFair36°F34°F96%1029.5 hPa
Patuxent River, Naval Air Station, MD22 mi74 minNW 1510.00 miA Few Clouds38°F28°F68%1028.7 hPa

Link to 5 minute data for KNUI

Wind History from NUI (wind in knots)
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Last 24hrSW8W6SW8SW6SW4S4NW34365NW65N7
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2 days agoE85SE7E8E53CalmCalmCalmCalmCalmN3N4N5CalmCalmE53W4SW6SW4SW3S6SW4

Tide / Current Tables for Mount Holly, Nomini Creek, Virginia
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Mount Holly
Click for Map
Wed -- 02:02 AM EST     1.34 feet High Tide
Wed -- 06:26 AM EST     Moonset
Wed -- 07:12 AM EST     Sunrise
Wed -- 07:55 AM EST     -0.04 feet Low Tide
Wed -- 02:05 PM EST     1.60 feet High Tide
Wed -- 04:36 PM EST     Moonrise
Wed -- 04:47 PM EST     Sunset
Wed -- 08:57 PM EST     -0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.11.31.31.20.90.60.20-000.30.81.21.51.61.51.20.90.50.20-0.10.10.4

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

Wed -- 12:25 AM EST     -0.00 knots Slack
Wed -- 04:05 AM EST     -0.58 knots Max Ebb
Wed -- 06:26 AM EST     Moonset
Wed -- 07:12 AM EST     Sunrise
Wed -- 07:34 AM EST     0.00 knots Slack
Wed -- 10:20 AM EST     0.71 knots Max Flood
Wed -- 01:18 PM EST     -0.00 knots Slack
Wed -- 04:34 PM EST     Moonrise
Wed -- 04:45 PM EST     Sunset
Wed -- 05:24 PM EST     -1.07 knots Max Ebb
Wed -- 10:09 PM EST     0.00 knots Slack
Wed -- 11:19 PM EST     0.25 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.1-0.1-0.4-0.5-0.6-0.5-0.4-0.20.10.50.70.70.40.1-0.3-0.7-0.9-1.1-1-0.9-0.6-0.3-00.2

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 Wakefield, VA (11,2,3,4)
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Ground Weather Radar Station Dover AFB, DE
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