Wednesday, January23, 2019 L-36.com


Marine Weather and Tides
Captains Cove, VA

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 7:12AMSunset 5:15PM Wednesday January 23, 2019 6:20 AM EST (11:20 UTC) Moonrise 8:24PMMoonset 9:08AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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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ANZ652 Coastal Waters From Chincoteague To Parramore Island Va Out 20 Nm- 341 Am Est Wed Jan 23 2019
.low water advisory in effect until 5 am est early this morning...
.small craft advisory in effect from 1 pm est this afternoon through Thursday evening...
Through 7 am..SW winds 10 to 15 kt. Seas around 2 ft with a dominant period of 7 seconds.
Today..S winds 15 to 20 kt. Seas 4 to 5 ft with a dominant period of 6 seconds.
Tonight..S winds 20 to 25 kt. Seas 5 to 6 ft with a dominant period of 6 seconds, building to 7 to 9 ft with a dominant period of 6 seconds in the late evening and overnight. Rain likely after midnight.
Thu..SW winds 25 to 30 kt, becoming nw 15 to 20 kt late. Seas 9 to 11 ft with a dominant period of 9 seconds, subsiding to 7 to 9 ft with a dominant period of 9 seconds in the afternoon. Rain, mainly in the morning with vsby 1 to 3 nm.
Thu night..NW winds 15 to 20 kt, diminishing to 10 to 15 kt late. Seas 6 to 8 ft with a dominant period of 11 seconds.
Fri..NW winds 10 to 15 kt. Seas 5 to 6 ft.
Fri night..N winds 10 to 15 kt. Seas 4 to 5 ft.
Sat..N winds 5 to 10 kt, becoming ne in the afternoon. Seas 3 to 4 ft.
Sat night..SE winds 5 to 10 kt. Seas 2 to 3 ft.
Sun..SW winds 5 to 10 kt. Seas 2 to 3 ft.
Sun night..W winds 5 to 10 kt, becoming nw after midnight. Seas 2 to 3 ft.
ANZ600 341 Am Est Wed Jan 23 2019
Synopsis for fenwick island de to currituck beach light nc out 20 nautical miles including virginia portion of the chesapeake bay currituck sound and portions of the james, york, and rappahannock rivers.. High pressure moves off the coast this morning. An area of low pressure approaches the region tonight with strong southerly flow by Thursday morning.


7 Day Forecast for Marine Location Near Captains Cove, VA
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location: 37.98, -75.4     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 231118
afdakq
area forecast discussion
national weather service wakefield va
618 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 12z 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 300 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 the lower james,
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.

Tides coastal flooding
As of 455 pm est Tuesday...

water levels along the ocean zones from parramore island to cape
charles light at low tide dropped to around 1.5 ft below mllw
and are now rising. Still appears likely that these same zones
will drop more than 1 foot below mllw for the next low tide
cycle occurring early Wed morning. Will be issuing a new low
water advisory from 06-10z (1 am to 5 am est) Wed morning for
these zones elsewhere, water levels should remain just above
advisory criteria during the next low tide.

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 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 4 pm this afternoon to 10 am est
Thursday for anz638.

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... Rhr
tides coastal flooding...

equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44089 16 mi51 min 41°F3 ft
OCIM2 - 8570283 - Ocean City Inlet, MD 29 mi39 min SW 9.9 G 13 33°F 35°F1031.5 hPa
WAHV2 - 8631044 - Wachapreague, VA 30 mi33 min SSW 7 G 8 31°F 31°F1030.2 hPa
BISM2 - 8571421 - Bishops Head, MD 38 mi33 min SSW 9.9 G 12 34°F 1030.7 hPa
RPLV2 - 8632837 - Rappahannock Light, VA 45 mi33 min S 17 G 19 1031.6 hPa

Wind History for Ocean City Inlet, MD
(wind in knots)    EDIT      (on/off)   Help
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G36
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NW16
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NW18
G23
NW19
G26
NW17
G24

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wallops Flight Facility Airport, VA5 mi27 minSW 910.00 miFair33°F23°F66%1030.9 hPa

Wind History from WAL (wind in knots)
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Last 24hrN6NW10
G17
N74N5Calm--CalmSE4S7S5CalmCalmSW3SW3SW3S7SW7SW6SW7SW6S5SW6SW9
1 day agoNW18
G30
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NW11NW9NW8NW7NW8NW11NW10NW8
2 days agoS14
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G28
SW8SW13
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W15
G22
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G40
NW23
G34
NW20
G33
NW17
G31
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G36
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G34
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G21
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G34
NW21
G34

Tide / Current Tables for Franklin City, 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 Assacorkin Island, Maryland
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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 (6,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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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.