Wednesday, January23, 2019 L-36.com


Marine Weather and Tides
Madison, MD

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:15AMSunset 5:16PM Wednesday January 23, 2019 12:36 PM EST (17:36 UTC) Moonrise 8:27PMMoonset 9:13AM Illumination 92% 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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ANZ533 Chesapeake Bay From North Beach To Drum Point- 937 Am Est Wed Jan 23 2019
.small craft advisory in effect through Thursday afternoon...
Rest of today..S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Tonight..S winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. Rain. Vsby 1 to 3 nm.
Thu..SW winds 15 to 20 kt...becoming nw in the afternoon. Gusts up to 30 kt. Waves 3 ft. Rain. Vsby 1 nm or less.
Thu night..NW winds 10 to 15 kt. Gusts up to 25 kt in the evening. Waves 2 to 3 ft.
Fri..W winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Fri night..NW winds 5 to 10 kt with gusts to 20 kt. Waves 2 ft.
Sat..SE winds 5 to 10 kt. Waves 1 to 2 ft.
Sun..W winds 5 to 10 kt. Waves 2 to 3 ft.
ANZ500 937 Am Est Wed Jan 23 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will continue moving eastward into the western atlantic today. A cold front approaching from the ohio valley will cross the waters by Thursday afternoon. High pressure will follow Friday into the weekend. A gale warning may be needed Thursday and small craft advisories may be needed Thursday night.


7 Day Forecast for Marine Location Near Madison, MD
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location: 38.49, -76.22     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 231433
afdakq
area forecast discussion
national weather service wakefield va
933 am est Wed jan 23 2019

Synopsis
A series of low pressure systems will track northeast along the
mountains today and Thursday. The associated warm front lifts
north of the region later today with the trailing cold front
crossing the area Thursday. High pressure builds in again for
the weekend.

Near term until 6 pm this evening
As of 615 am est Wednesday...

latest msas has the arctic high well off the mid atlantic coast with
low pressure over il. Meanwhile, a warm front snaked it way from off
the sern coast west to low pres over ark.

Models take the first low NE into the great lakes region with the
warm front slowly lifting north from the deep south. Latest data
suggests the front doesn't get this far north until closer to sunset.

Ahead of it, a return and moistening upslope flow will continue to
allow clouds to thicken up as the day progresses.

Any rain chcs remain over the piedmont today (generally W of i95)
where low chc pops will be maintained, dry elsewhere under cldy
to mstly cldy skies. Temps slow to rise this morn, but increasing
southerly winds this aftrn will allow temps to rise thru the 40s
and 50s with the highs not achieved until late aftrn.

Short term 6 pm this evening through Friday night
As of 300 am est Wednesday...

the warm front lifts north of the local area this evening leaving
the fa in the warm sector overnight. Meanwhile, moisture from the
second area of low pressure overspreads the region starting late in
the evening over the west then over the rest of the area after 06z.

Chc to low end likely pops this eve ramp up to high end likely and
categorical after midnight. Some mdt to lclly hvy rainfall enters
the piedmont late. Much warmer with nearly steady temps thru the
night from the mid 40s NW to mid 50s se.

The low tracks NE across the region Thu morning with the trailing
cold front crossing the area thru the day, pushing offshore by 00z
fri. Data shows a decent slug of SRN stream moisture combined with
strong lift btwn 12z-18z just ahead of the cold front. Some convective
elements noted for a band of lclly heavy downpours. Thus, added some
r+ for a few hr prd. Pcpn quickly tapers off to some light rain or
shwrs Thu aftrn west to east as the front pushes all the deep moisture
towards the coast. Mild with highs 55-60 north to 60-65 south. Can't
rule out some elevated thunder along the sern beaches in the aftrn,
but left thunder out of the fcst thinking it remains offshore closer
to the gulf stream wall. QPF arnd one inch.

Clearing and colder thurs nite as high pressure builds in from the
nw. Lows mid 20s NW to mid 30s se. Back to below normal temps fri
and Fri nite. Plenty of sunshine fri. Highs upr 30s NW to mid 40s
se. Lows Fri nite upr teens NW to upr 20s se.

Long term Saturday through Tuesday
As of 310 pm est Tuesday...

the extended looks fairly quiet at least for our region as the
main storm systems stay north or west of the area... Or well
offshore. High pressure over the area Saturday gradually shifts
ne through Sunday with the ridge axis staying in place across
the area. A weak upper disturbance moves well north of the area
later Sunday which may allow for some light precipitation
Sunday night, but given the lack of moisture will keep just a
slight chance of rain (or snow across the nw). Warm advection
again develops Monday into Tuesday as upper heights build ahead
of another great lakes low pressure system. The associated cold
front is expected to approach the area on Tuesday with chance of
rain across the west and north.

Highs over the weekend will be seasonably cool with temps in the
40s Saturday and mid 40s-lower 50s Sunday-Tuesday.

Aviation 15z Wednesday through Sunday
As of 615 am est Wednesday...

high pres now offshore with low pres west of the mts. A warm frnt
lifts north of the local area after 18z. High and mid level moisture
continues to overspread the area today so will keep a sct-bkn sc
deck btwn 3-4k ft.

South winds become gusty this afternoon (15-20 kts) and continue thru
the night (20-30 kts). Wind shear btwn 40-50 kts at 2k ft due to a
strong low level jet. Rain oversreads the area west to east after 06z
along with lowering cigs. Kept CIGS just above 1k ft for now but do
expect to see some ifr CIGS and vsbys in rain and fog overspreading
the area thurs morning.

Outlook...

low pressure and trailing cold front will affect the area Thu morn with
ifr restrictions both in rain and fog. High pres briefly returns thurs
night... Before another cold front sfc trough crosses the area on fri
(conditions look to remainVFR Thu night into the weekend).

Marine
As of 930 am est Wednesday...

seasonally strong surface high pressure continues to move offshore
early this morning with winds across the marine area becoming
southerly at 5-15 knots. Waves are 1-2 feet in the bay with 2-4 foot
seas offshore.

A digging upper trough across the central portion of the country is
allowing surface low pressure to deepen across the mississippi
valley. Increasingly steep pressure gradient between the departing
high and approaching low will allow winds to increase in magnitude
through the course of the day and especially into the evening and
overnight hours tonight. Southerly winds in the bay increase to 15-
20 knots this afternoon with 20-25 knot southerly winds by this
evening offshore. Small craft advisories will begin for the bay and
northern offshore zones shortly after noon and all the rivers,
currituck sound, and remaining offshore zones following suit a
few hours later. Winds and seas will increase further overnight
into Thursday as a secondary area of low pressure forms along
the trailing cold front. Winds in the bay will run 20-25 with
gusts to 30 knots by Thursday morning while winds offshore
increase to 25-30 with gusts to 35 knots. A few gusts could
exceed 35 knots during this period, especially across the
northern offshore zones. Opted not to issue a gale watch with
this package due to the relatively brief window for gale
conditions and the less than climatologically favored southerly
wind direction, however, will continue to watch this period
closely in subsequent forecasts. Seas will build as winds
increase Thursday morning with 8-12 foot seas possible across
the northern offshore zones, slightly lower to the south where
5-9 foot seas are expected. Will have to monitor for the
potential for a high surf advisory on Thursday from roughly cape
charles light northward. Winds will become northwesterly behind
the surface cold front late Thursday afternoon. Cold advection
behind the front appears rather anemic with northwest winds
15-20 knots in its wake, decreasing further Thursday evening.

Seas will be slow to subside Thursday and scas for offshore
zones will likely need to be extended into Friday to cover this
threat.

High pressure builds into the region on Friday with tranquil marine
conditions in store through the upcoming weekend.

Equipment
As of 300 am est Wednesday...

the kakq radar is down due to a pedestal slip ring assembly
failure. Due to the time to procure ship the needed parts, and
the repair time, the radar will remain down through at least
Friday.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... Small craft advisory from 4 pm this afternoon to 10 am est
Thursday for anz635>638.

Small craft advisory from 1 pm this afternoon to 1 pm est
Thursday for anz630>632-634.

Small craft advisory from 4 pm this afternoon to 1 pm est
Thursday for anz633.

Small craft advisory from 1 pm this afternoon to 7 pm est
Thursday for anz650-652-654.

Small craft advisory from 4 pm this afternoon to 7 pm est
Thursday for anz656-658.

Synopsis... Mpr
near term... Alb mpr
short term... Mpr
long term... Mrd
aviation... Mpr
marine... Tmg rhr
equipment... Akq


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CA2 - 8571892 - Cambridge, MD 10 mi42 min 44°F 34°F1025.5 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 11 mi42 min SSW 16 G 19 44°F 1025.8 hPa
SLIM2 - 8577330 - Solomons Island, MD 17 mi42 min SSW 19 G 22 43°F 38°F1025.2 hPa
BISM2 - 8571421 - Bishops Head, MD 21 mi42 min SSW 8.9 G 12 40°F 1026.1 hPa
PPTM2 - 8578240 - Piney Point, MD 30 mi42 min SW 7 G 8
TPLM2 - Thomas Point, MD 30 mi36 min SSE 13 G 15 40°F 37°F1025.1 hPa (-2.9)30°F
44042 - Potomac, MD 32 mi156 min S 3.9 G 3.9 35°F
BSLM2 - Chesapeake Bay, MD 33 mi126 min SSW 7 41°F 1026 hPa22°F
CPVM2 36 mi42 min 40°F 28°F
APAM2 - 8575512 - Annapolis, MD 37 mi42 min 41°F 1023.9 hPa
LWTV2 - 8635750 - Lewisetta, VA 37 mi42 min WSW 5.1 G 8.9 44°F 33°F1025.6 hPa
NCDV2 45 mi42 min SSW 9.9 G 13 44°F 33°F1024.3 hPa

Wind History for Cambridge, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cambridge-Dorchester Airport, MD11 mi56 minS 9 G 1410.00 miFair45°F30°F57%1025.7 hPa
Patuxent River, Naval Air Station, MD17 mi1.7 hrsSSW 11 G 1710.00 miMostly Cloudy43°F28°F58%1026.4 hPa
St Marys County Airport, MD21 mi53 minSW 15 G 2010.00 miPartly Cloudy43°F32°F66%1026.1 hPa
Easton / Newman Field, MD23 mi47 minSW 13 G 1710.00 miClear45°F30°F57%1026.7 hPa

Wind History from CGE (wind in knots)
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Last 24hrCalmN63CalmCalmCalmS4SE5S7S9S6S7S5S4S5S6S6S8S9S8
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2 days agoNW21
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Tide / Current Tables for Woolford, Church Creek, Little Choptank River, Maryland
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Woolford
Click for Map
Wed -- 04:34 AM EST     1.01 feet High Tide
Wed -- 07:16 AM EST     Sunrise
Wed -- 09:11 AM EST     Moonset
Wed -- 11:12 AM EST     -0.67 feet Low Tide
Wed -- 05:16 PM EST     Sunset
Wed -- 05:20 PM EST     1.66 feet High Tide
Wed -- 08:27 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-0.10.30.7110.80.50.1-0.3-0.5-0.7-0.6-0.30.30.91.41.61.61.410.60.2-0.1

Tide / Current Tables for Cove Point (1.1 mi. NE of), Maryland Current
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Cove Point (1.1 mi. NE of)
Click for Map
Wed -- 01:38 AM EST     0.00 knots Slack
Wed -- 04:10 AM EST     0.51 knots Max Flood
Wed -- 07:11 AM EST     -0.00 knots Slack
Wed -- 07:17 AM EST     Sunrise
Wed -- 09:12 AM EST     Moonset
Wed -- 10:19 AM EST     -0.51 knots Max Ebb
Wed -- 12:56 PM EST     0.00 knots Slack
Wed -- 04:10 PM EST     0.79 knots Max Flood
Wed -- 05:17 PM EST     Sunset
Wed -- 07:33 PM EST     -0.00 knots Slack
Wed -- 08:28 PM EST     Moonrise
Wed -- 11:04 PM EST     -0.78 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.6-0.20.10.40.50.50.30-0.2-0.4-0.5-0.5-0.300.40.70.80.70.50.2-0.1-0.5-0.7-0.8

Weather Map and Satellite Images
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GOES 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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Wind Forecast for Wakefield, VA (12,3,4,5)
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Ground Weather Radar Station Dover AFB, DE
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.