Tuesday, March19, 2019 L-36.com


Marine Weather and Tides
Portsmouth, 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 7:09AMSunset 7:17PM Tuesday March 19, 2019 7:40 PM EDT (23:40 UTC) Moonrise 4:48PMMoonset 5:31AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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
ANZ632 Chesapeake Bay From New Point Comfort To Little Creek Va- 642 Pm Edt Tue Mar 19 2019
Tonight..NE winds 10 to 15 kt. Waves around 2 ft.
Wed..NE winds 10 to 15 kt. Waves 2 to 3 ft.
Wed night..E winds 10 to 15 kt. Waves 2 to 3 ft, subsiding to 1 foot late. A chance of rain in the evening, then rain likely after midnight.
Thu..E winds 10 to 15 kt, becoming se early in the afternoon, then becoming sw late. Waves 2 to 3 ft. Rain likely.
Thu night..NW winds 10 to 15 kt, increasing to 15 to 20 kt late. Waves 2 to 3 ft. A chance of rain in the evening.
Fri..W winds 15 to 20 kt. Waves 2 to 3 ft.
Fri night..NW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Waves 3 to 4 ft.
Sat..NW winds 15 to 20 kt. Waves 3 to 4 ft.
Sat night..NW winds 10 to 15 kt. Waves 1 to 2 ft.
ANZ652 Coastal Waters From Chincoteague To Parramore Island Va Out 20 Nm- 642 Pm Edt Tue Mar 19 2019
Tonight..E winds 10 to 15 kt. Seas around 2 ft with a dominant period of 8 seconds.
Wed..NE winds 10 to 15 kt. Seas 2 to 3 ft with a dominant period of 8 seconds.
Wed night..E winds 10 to 15 kt. Seas around 3 ft with a dominant period of 7 seconds. A chance of rain after midnight.
Thu..SE winds 10 to 15 kt. Seas 3 to 4 ft with a dominant period of 8 seconds, building to 5 to 6 ft with a dominant period of 8 seconds late. Rain likely.
Thu night..W winds 10 to 15 kt, becoming nw 15 to 20 kt in the late evening and overnight. Seas 5 to 6 ft. Rain likely, mainly in the evening.
Fri..W winds 15 to 20 kt. Seas 4 to 5 ft.
Fri night..NW winds 20 to 25 kt. Seas 4 to 5 ft.
Sat..NW winds 20 to 25 kt. Seas 4 to 5 ft.
Sat night..NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 3 ft.


7 Day Forecast for Portsmouth, VA
   Hourly   EDIT   Help
location: 36.929, -76.345     debug


7 Day Forecast for Chincoteague, VA
   EDIT
location: 37.834, -75.409     


Area Discussion for - Wakefield, VA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kakq 191933
afdakq
area forecast discussion
national weather service wakefield va
333 pm edt Tue mar 19 2019

Synopsis
High pressure remains near the local area tonight then slides
offshore of new england Wednesday. The next low pressure system
impacts the region on Thursday. Drier weather expected Friday
through the weekend.

Near term until 6 am Wednesday morning
As of 240 pm edt Tuesday...

sfc hi pres is currently settling over the local area... Providing
a cool but dry afternoon. Meanwhile... A frontal boundary remains
nearly stationary INVOF nrn fl. Expecting a mainly skc and chilly
night (w winds generally lgt vrb... Ne blo 10 mph at the coast
in SE va-ne nc). Lows around 30f N and W to the u30s- l40s at
the immediate coast in SE va-ne nc.

Short term 6 am Wednesday morning through Friday
As of 250 pm edt Tuesday...

sfc hi pres slides offshore of new england Wed W a coastal
trough sitting offshore of the carolinas. Mostly skc inland
(n and nw)... Partly cloudy or increasing clouds toward SE va-ne
nc by Wed afternoon evening. A strong trough digs through the
oh tn valleys Wed night then to the E coast by late thu... W sfc
lo pres developing off ERN nc. Lo pres is forecast to track nne
near the coast (nam farthest W more inland... GFS farthest E just
off the coast) late Wed night-thu... Spreading ra into the fa
from the s. Will increase pops to 60-80% after midnight wed
night and continue through Thu morning before beginning to taper
off from SW to NE late in the day. QPF 1 2 to 3 4 inch.

Drying clearing out by late Thu night and dry a bit breezy fri.

Highs Wed in the l-m50s at the coast... Around 60f inland. Lows
wed night from the u30s N and W to the m40s e. Highs Thu ranging
through the 50s. Lows Thu night from the u30s W to the l40s se.

Highs Fri in the l-m50s on the ERN shore to around 60f elsewhere.

Long term Friday night through Tuesday
As of 225 pm edt Tuesday...

sfc hi pres and dry wx settle over the local area for the
weekend (though a bit breezy Fri night into sat... ESP ern
portions). By mon... That sfc hi pres will be off the SE conus
coast while lo pres and its associated cold front will be
starting to take shape gather moisture from the oh valley to the
lower ms valley. The cold front will be pushing S through the
area Mon night into Tue morning W a trailing area of lo pres
tracking by to the S as colder sfc hi pres builds SE out of
canada. The 12z 19 GFS appears to be having low level sfc
temperature issues and is forecasting a winter storm (esp across
srn SE va-ne nc). Have thrown that scenario out right now due
to those issues (and the fact that each time cold air has chased
ra this winter... There was very little or no sn). Will increase
pops to 50-80% (for ra) across much of the fa Mon night into
tue morning then begin to taper the pops down from NW to SE into
tue night.

Lows Fri night from the l30s along-w of I 95 to the u30s along
coastal SE va-ne nc. Highs Sat in the l-m50s at the coast in
va-md to 60-65f inland. Lows Sat night in the m-u30s inland to
40-45f at the coast. Highs Sun in the u50s-l60s near the bay and
on the ERN shore to the u60s-l70s elsewhere. Lows Sun night in
the m-u40s. Highs Mon from 60-65f near the bay and on the ern
shore to the u60s-l70s inland. Lows Mon night in the u30s NW to
the m40s se. Highs Tue in the m-u40s N and NW to the m50s se.

Aviation 20z Tuesday through Sunday
As of 100 pm edt Tuesday...

vfr conditions are expected through the 18z TAF forecast period
as sfc hi pres INVOF fa ATTM drifts off the coast (into wed).

Flight restrictions due to lowering CIGS vsbys in ra fg late wed
night through Thu as lo pres initially off the nc coast tracks
nne near the coast. Drier conditions return (by) late thu
night Fri as winds shift to the nw.VFR conditions are expected
sat.

Marine
As of 330 pm edt Tuesday...

afternoon sfc analysis shows high pressure centered from ERN oh
to md, with a broad area of low pressure well off the southeast
us coast. Winds are mainly out of the N or NE at 10-15 kt
across the va md marine zones (highest S lowest n). Over the ne
nc coastal waters currituck sound, winds are in the 15-20 kt
range. Seas remain around 5 ft (even nearshore) over anz658,
while seas are mainly in the 2-3.5 ft range elsewhere as per
buoy obs (perhaps closer to 4 ft at the va nc border). NE winds
will remain in the 15-20 kt range through the night over NE nc,
while winds remain 10-15 kt range elsewhere (perhaps a bit
higher over the ocean from CAPE charles to the va nc border).

Cannot rule out a few gusts to 20 kt over the lower bay lower
james river overnight at the typical elevated sites. In
addition, seas will likely hover around 5 ft off the NE nc coast
through the day on wed.

Winds are progged to decrease Wed aftn-wed night as the
pressure gradient (briefly) relaxes. Low pressure develops off
the carolina coast early Thu then tracks NE toward the region
during the day before departing Thu night-early fri. While there
is still some disagreement in the 12z 19 models regarding the
exact track strength of the low, model consensus tracks the low
from nc to SE va to the DELMARVA region. This would bring a
period of marginal sca-level southeasterly flow during the day
on thu, so went ahead and increased the magnitude of SE winds
with this forecast package (although didn't quite go to sca
levels). Regardless, it is looking highly likely that scas will
be needed for elevated seas (and possibly winds). Continue to
expect at least some changes to this portion of the forecast to
change over the next couple of model cycles given the degree of
uncertainty in the forecast. As for headlines, scas have been
extended through midday Wed for the currituck sound due to 20 kt
gusts. Went ahead and extended the SCA to Thu am for anz658
(for persistent 5 ft seas). The SCA for anz658 will likely have
to be extended further in upcoming forecast packages, but did
not want to go beyond 4th period W headlines.

Robust west and northwesterly flow will follow in the wake of the
low pressure with high pressure approaching from the west, a
tightening pressure gradient, and modest cold advection as the low
deepens to our northeast. A stronger surge of CAA is progged to
enter the area Fri night-sat am. SCA headlines are looking
very likely for Friday into Saturday for most (if not all)
marine zones. Some of the guidance is hinting at the potential
for high-end scas Fri night-sat am.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... Small craft advisory until 7 am edt Thursday for anz658.

Small craft advisory until 1 pm edt Wednesday for anz633.

Synopsis... Lkb
near term... Alb
short term... Alb
long term... Alb
aviation... Alb lkb
marine... Eri rhr


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
SWPV2 - 8638610 - Sewells Point, VA 1 mi46 min 51°F1029.4 hPa
CRYV2 - 8638595 - South Craney Island, VA 3 mi46 min ENE 9.9 G 12 47°F 1029.1 hPa
WDSV2 - 8638614 - Willoughby Deguassing , VA 4 mi46 min NE 9.9 G 11 46°F 1028.5 hPa
DOMV2 - 8638511 - Dominion Terminal Association, VA 5 mi46 min Calm G 5.1 48°F 1029.8 hPa
MNPV2 - 8639348 - Money Point, VA 11 mi46 min NE 5.1 G 9.9 48°F 52°F1029.2 hPa
44087 12 mi40 min 47°F2 ft
44064 14 mi40 min ESE 7.8 G 9.7 45°F 47°F2 ft1029.4 hPa (-0.2)
CHBV2 16 mi46 min ESE 7 G 8.9 46°F 1028.5 hPa
CHYV2 - 8638999 - Cape Henry, VA 18 mi46 min E 8 G 8.9 45°F 1028 hPa
44072 19 mi40 min 45°F 47°F2 ft
YKRV2 - 8637611 - York River East Rear Range Light, VA 22 mi46 min ENE 14 G 16 46°F 1029.9 hPa
YKTV2 - 8637689 - Yorktown, VA 22 mi46 min NE 11 G 13 47°F 50°F1029.1 hPa
KPTV2 - 8632200 - Kiptopeke, VA 25 mi46 min E 4.1 G 7 48°F
44099 - Cape Henry, VA (147) 33 mi40 min 47°F3 ft
YRSV2 - Chesapeake Bay,VA 39 mi70 min ENE 4.1 50°F 1030 hPa27°F
WAHV2 - 8631044 - Wachapreague, VA 59 mi46 min E 7 G 8 44°F 51°F1029.4 hPa
44014 - VIRGINIA BEACH 64 NM East of Virginia Beach, VA 83 mi50 min NNE 18 G 19 46°F 48°F5 ft1028.8 hPa (-0.0)32°F

Wind History for South Craney Island, VA
(wind in knots)    EDIT      (on/off)   Help
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
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
Last
24hr
N17
G21
NE12
G15
E7
G10
NE8
NE8
NE9
NE8
NE10
N8
G11
N10
NE10
N10
G13
N10
NE12
NE11
G16
NE12
G16
NE14
NE10
G13
NE11
NE11
NE10
G14
NE12
NE15
E8
G11
1 day
ago
SE9
S8
SE8
SE8
SE9
G12
S8
G11
SE4
G7
SE5
E4
E4
E4
E3
SE4
E7
SE6
SE5
G10
NE13
NE16
NE19
NE14
G18
NE17
NE17
G21
NE15
N16
G20
2 days
ago
SE9
S9
S8
S7
S5
NE9
G14
NE17
NE14
NE14
G17
NE14
G17
NE15
NE13
G18
N11
G14
NE7
G10
E11
G15
NE6
G11
NE7
NE5
NE4
N5
E7
G10
SE9
G12
E9
SE11

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Norfolk, Naval Air Station, VA3 mi1.7 hrsNNE 1310.00 miA Few Clouds47°F17°F30%1029.8 hPa
Norfolk, Norfolk International Airport, VA8 mi49 minE 510.00 miFair45°F27°F49%1029.2 hPa
Langley Air Force Base, VA11 mi44 minNE 1010.00 miFair44°F24°F45%1030.1 hPa
Newport News, Newport News / Williamsburg International Airport, VA17 mi46 minENE 810.00 miFair45°F23°F42%1029.4 hPa
Virginia Beach, Oceana, Naval Air Station, VA18 mi44 minE 610.00 miA Few Clouds44°F26°F49%1029.6 hPa
Chesapeake, Chesapeake Municipal Airport, VA19 mi45 minNNE 55.00 miFair with Haze47°F19°F34%1029.5 hPa
Fort Eustis / Felker, VA21 mi1.7 hrsE 610.00 miFair48°F21°F35%1028.8 hPa
Suffolk, Suffolk Municipal Airport, VA22 mi65 minNE 910.00 miFair48°F24°F39%1029.5 hPa

Wind History from NGU (wind in knots)
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
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
Last 24hrN14
G23
E8E6NE6NE7N6NE6NE6N8N8N8NE8NE8N9NE11N11N7
G21
N10NE13NE13NE11NE13NE13E8
1 day agoSE5SE6SE4SE4SE6S4SE3CalmCalmE3E3CalmSE3E6E10E11E13NE14NE13NE14NE14NE12N10N13
G20
2 days agoSE4SE4S6SE3S3NE4NE12NE12
G20
NE13NE12NE11N10N9NE9NE8NE10E8E7E8NE7E9E10SE7SE6

Tide / Current Tables for Sewells Point, Hampton Roads, Virginia
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Chesapeake Bay Entrance, Virginia Current
   EDIT      (on/off)   Help   One Week of Data
Chesapeake Bay Entrance
Click for Map
Tue -- 01:37 AM EDT     -1.60 knots Max Ebb
Tue -- 04:40 AM EDT     0.00 knots Slack
Tue -- 06:29 AM EDT     Moonset
Tue -- 07:09 AM EDT     Sunrise
Tue -- 07:15 AM EDT     1.23 knots Max Flood
Tue -- 10:45 AM EDT     -0.00 knots Slack
Tue -- 02:16 PM EDT     -1.66 knots Max Ebb
Tue -- 05:15 PM EDT     0.00 knots Slack
Tue -- 05:46 PM EDT     Moonrise
Tue -- 07:14 PM EDT     Sunset
Tue -- 07:47 PM EDT     1.24 knots Max Flood
Tue -- 11:04 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
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
-1.1-1.5-1.6-1.2-0.60.30.91.21.10.80.4-0.1-0.8-1.4-1.6-1.6-1-0.20.61.11.210.60.1

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
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.
Link to Loop



Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Wakefield, VA (19,4,5,8)
      (on/off)   Help

Ground Weather Radar Station Wakefield, VA
   (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.