Tuesday, October24, 2017 L-36.com


Marine Weather and Tides
Greenbackville, VA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:20AMSunset 6:12PM Tuesday October 24, 2017 7:02 AM EDT (11:02 UTC) Moonrise 10:34AMMoonset 8:45PM Illumination 18% Phase: Waxing Crescent; Moon at 4 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
    EDIT      (on/off)   Help
ANZ652 Coastal Waters From Chincoteague To Parramore Island Va Out 20 Nm- 647 Am Edt Tue Oct 24 2017
.small craft advisory in effect through late Wednesday night...
Today..S winds 20 to 25 kt with gusts to around 30 kt. Seas 6 to 8 ft with a dominant period of 8 seconds. A chance of showers with a slight chance of tstms this morning, then showers likely with a chance of tstms this afternoon.
Tonight..S winds 15 to 20 kt...becoming W 10 to 15 kt in the late evening and overnight. Seas 6 to 8 ft with a dominant period of 8 seconds...subsiding to 5 to 7 ft with a dominant period of 8 seconds after midnight.
Wed..NW winds 10 kt. Seas 5 to 6 ft... Subsiding to 4 to 5 ft in the afternoon...mainly se swell with a dominant period of 9 seconds.
Wed night..NW winds 10 to 15 kt. Seas 4 to 5 ft.
Thu..NW winds 10 to 15 kt. Seas 4 to 5 ft... Subsiding to 3 to 4 ft in the afternoon.
Thu night..NW winds 5 to 10 kt. Seas 3 to 4 ft...subsiding to 2 to 3 ft late.
Fri..S winds 5 kt...increasing to 5 to 10 kt in the afternoon. Seas 3 to 4 ft.
Fri night..S winds 5 to 10 kt. Seas 3 to 4 ft.
Sat..SE winds 5 to 10 kt. Seas around 3 ft.
Sat night..SE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers. Winds and seas higher and visibilities lower in and near tstms.
ANZ600 647 Am Edt Tue Oct 24 2017
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.. A trough of low pressure will slide through the area this morning, followed by a cold frontal passage tonight. High pressure then slowly builds into the region from the southwest Wednesday through Friday.

7 Day Forecast for Marine Location Near Greenbackville, VA
   Hourly   EDIT   Help
location: 38.01, -75.38     debug


Area Discussion for - Wakefield, VA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kakq 241033
afdakq
area forecast discussion
national weather service wakefield va
633 am edt Tue oct 24 2017

Synopsis
A weakening cold front slowly push across the local area this
morning... Before pushing offshore tonight. High pressure builds
across the gulf of mexico Wednesday and Thursday... As low
pressure lingers from the great lakes to new england.

Near term until 6 pm this evening
Latest analysis indicates ~1028mb sfc high pressure well off
the new england coast. To the west, deepening low pressure
continues to slowly lift across the upper great lakes this
morning. Attendant surface cold front pushing toward the coast
this morning, with quick clearing behind the front. Aloft,
dampening upper disturbance over the local area pushing
offshore, as lead shortwave currently over the mid-mississippi
river valley continues to dig longwave trough into the oh tn
river valleys.

Regional radar mosaic showing convection of earlier this morning
now diminishing to a narrow line of showers with locally heavy
rainfall across the va northern neck and coastal plain. Have
accelerated the clearing trend to the west this morning, with
clearing by mid to late morning for all but immediate coastal
zones, where clouds and showers will linger into late this
morning. Influx of higher pw air will lift S to N along the
front just offshore. Still rather warm as winds remain from the
sw. Highs today in the mid 70s W to the lower 80s SE as cold air
lags well behind off to the NW of the local area.

Short term 6 pm this evening through Thursday
Overall, good model agreement between the 00z GFS and 12z ecmwf
(due to an unspecified error... 00z ECMWF is unavailable at this
hour). NAM now strongest deepest with the clipper wave and
amplitude of the east coast upper trough by late Wed thu.

Will side a little more to the aforementioned 00z GFS 12z ecmwf
consensus with this package. Surface cold front finally gets
pushed farther offshore this evening, with clearing along the
md coast overnight as cooler and drier air filters in after
00z. Lows will range from the upper 40s west of i-95 to the
mid upper 50s closer to the coast by Wed morning. On wed... Local
area looks to remain in between the sfc cold front well
offshore and upper trough axis cold pool aloft approaching from
our wnw Wed afternoon and evening. Some sct bkn CU will tend to
linger due to some shortwave energy aloft, but should be dry
with highs mainly in the m-u60s. For Wed night thu, shallow
layer of overrunning moisture could portend to a sprinkle or
two as the upper trough axis crosses. However, drier air in low
levels should make measuring rainfall unlikely. And therefore
have maintained rain chances AOB 10% for now for Wed night and
thu morning. Lows Wed night mainly in the 40s. High pressure
will build across the SE seaboard up into the local area.

Look for gradual clearing with highs in the low to mid 60s on
Thursday, as high pressure builds north across the local area
from the SE coast.

Long term Thursday night through Monday
Long term period starts off dry Thu night Fri with sfc high pressure
over the immediate area and W SW flow aloft. With light sfc winds
under a clear sky, expect low temps Thu night in the low mid 40s
most of the area, and highs in the mid upr 60s fri. Attention then
turns to an approaching deep upper-level trough sat. Although any
pcpn will likely hold off until after daytime sat, included a 20%
chance of a shower in case the faster ensemble member solutions pan
out. Better chance of rain (40-50%) arrives Sat night Sun as strong
sfc low pressure forms out ahead of the upper-level trough. There is
still plenty of uncertainty over the track of this low, but the
possibility is there for moderate to heavy rain sun. High temps in
the mid upper 60s Sat drop to the upr 50s to mid 60s sun.

Aviation 12z Tuesday through Saturday
Low pressure to the north and associated surface cold front
bringing ceilings down into MVFR LCL ifr range this morning. Se
or S winds 10-15 kt, with gusts up to 25 kt possible during
this time period, with higher gusts possible in stronger showers
or tstms. This front will push to the coast by daybreak, with a
return toVFR for all terminals but sby by 15z, with clearing
reaching the coast by early afternoon. MainlyVFR conditions
expected later Tue aftn evening through fri.

Marine
A cold front will push east and approach the marine area around
8-10am. The cold front is then expected to slow down and take
its time pushing east and offshore through this afternoon.

Southerly winds 15-25 kt with gusts into the low 30kt range
will occur this morning all waters as the front nears. Once the
front passes, expecting the wind direction to remain S sw
through the afternoon but with speeds diminishing to 10-15 kt
bay rivers and 15-20 kt currituck sound and coastal waters.

Waves will build up to 4 ft on the bay and to 6-8 ft on the
ocean.

Secondary cold front crosses the area tonight with sub-sca NW winds
developing behind the front into wed. Will maintain the SCA over the
ocean through the day Wed due to a prolonged period of 5+ ft seas
and into Wed night for the coastal waters north of CAPE charles.

Lighter winds and sub-sca conditions expected Thu and Fri with sfc
high pressure over the area.0

Tides coastal flooding
Both cambridge and bishops head touched minor flooding
thresholds this morning with tidal anomalies running 1.0-1.5ft
above normal due to strong sse winds ahead of a cold front.

Water levels at these locations could potentially remain
elevated for the next high tide cycle this aftn early evening,
which is the higher astronomical tide, despite lessening winds.

A coastal flood statement may be needed later today.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... Small craft advisory until 10 am edt this morning for
anz635>638.

Small craft advisory until 4 pm edt this afternoon for
anz630>632-634.

Small craft advisory until 7 pm edt this evening for anz633.

Small craft advisory until 6 am edt Thursday for anz650-652-
654.

Small craft advisory until 7 pm edt Wednesday for anz656-658.

Synopsis... Mam
near term... Mam
short term... Alb lkb mam
long term... Mas
aviation... Mam tmg
marine... Jdm
tides coastal flooding... Akq


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44089 18 mi33 min 69°F7 ft
OCIM2 - 8570283 - Ocean City Inlet, MD 27 mi45 min S 23 G 33 72°F 68°F1010.5 hPa
WAHV2 - 8631044 - Wachapreague, VA 32 mi45 min S 15 G 21 72°F 70°F1009.2 hPa
BISM2 - 8571421 - Bishops Head, MD 38 mi45 min S 15 G 17 69°F 68°F1008.7 hPa
RPLV2 - 8632837 - Rappahannock Light, VA 47 mi45 min SSW 14 G 16 1009.7 hPa
44009 - DELAWARE BAY 26 NM Southeast of Cape May, NJ 48 mi73 min SE 18 G 19 70°F 68°F7 ft1010.9 hPa (-0.7)67°F

Wind History for Ocean City Inlet, MD
(wind in knots)    EDIT      (on/off)   Help
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last
24hr
SE8
G11
SE6
G10
SE8
G11
S10
G14
SE9
G13
SE9
G13
SE7
G11
SE9
G15
S11
G14
SE9
G14
SE10
G15
SE12
G16
SE12
G16
S16
G20
S11
G18
S14
G18
S16
G24
S14
G20
S16
G20
S17
G23
S15
G21
S16
G21
S11
G15
S18
G24
1 day
ago
SE5
SE4
SE5
SE3
G7
SE4
SE5
S4
SE5
SE4
SE4
G7
SE5
SE4
G7
SE5
G8
SE5
SE3
SW2
SE3
S3
SE5
G9
SE7
SE6
G10
SE5
G8
SE7
G11
SE7
G11
2 days
ago
N5
N4
N4
N5
N5
NE4
E6
E4
E5
E4
SE3
S3
S2
S3
SW1
S4
SW2
--
NE1
N2
SE1
N2
N2
N1

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wallops Flight Facility Airport, VA7 mi69 minS 18 G 2710.00 miMostly Cloudy and Breezy71°F69°F94%1009.3 hPa
Salisbury, Salisbury-Ocean City Wicomico County Regional Airport, MD24 mi69 minSSE 15 G 2010.00 miOvercast71°F69°F94%1009.1 hPa

Wind History from WAL (wind in knots)
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last 24hrS4SE7SE8SE10SE9SE10SE10SE10SE12SE11SE10SE13S13
G24
S10
G18
SE15SE18
G25
S12
G23
S14
G22
S16
G26
S17
G27
S14
G25
S17
G26
S18
G27
S16
G24
1 day agoCalmCalmSE4--SE8SE7SE6SE7SE5E7E5SE3CalmCalmNE3SE3E3CalmSE4CalmSE3CalmSE4Calm
2 days agoNW4NW3NW4CalmE4E4E5NE6----SE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Franklin City, Chincoteague Bay, Virginia
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Franklin City
Click for Map
Tue -- 01:08 AM EDT     0.61 feet High Tide
Tue -- 07:19 AM EDT     Sunrise
Tue -- 07:43 AM EDT     0.09 feet Low Tide
Tue -- 11:34 AM EDT     Moonrise
Tue -- 01:26 PM EDT     0.69 feet High Tide
Tue -- 06:11 PM EDT     Sunset
Tue -- 08:22 PM EDT     0.08 feet Low Tide
Tue -- 09:45 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.60.60.50.40.30.20.10.10.20.30.50.60.70.70.60.50.40.20.10.10.10.20.4

Tide / Current Tables for Chincoteague Channel (south end), Chincoteague Bay, Virginia
   EDIT      (on/off)   Help   One Week of Data
Chincoteague Channel (south end)
Click for Map
Tue -- 05:32 AM EDT     0.23 feet Low Tide
Tue -- 07:19 AM EDT     Sunrise
Tue -- 11:33 AM EDT     Moonrise
Tue -- 11:46 AM EDT     2.41 feet High Tide
Tue -- 06:11 PM EDT     Sunset
Tue -- 06:20 PM EDT     0.27 feet Low Tide
Tue -- 09:45 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
21.61.10.70.40.30.30.51.11.62.12.32.42.21.71.10.70.50.30.30.71.11.51.8

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for Wakefield, VA (7,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Dover AFB, DE
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.