Wednesday, August21, 2019 L-36.com


Marine Weather and Tides
Chance, MD

Version 3.4
NOTICE
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 6:20AMSunset 7:50PM Wednesday August 21, 2019 8:11 PM EDT (00:11 UTC) Moonrise 10:12PMMoonset 10:53AM Illumination 62% Phase: Waning Gibbous; Moon at 21 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
ANZ543 Tangier Sound And The Inland Waters Surrounding Bloodsworth Island- 758 Pm Edt Wed Aug 21 2019
.small craft advisory in effect until midnight edt tonight...
Tonight..SW winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance of showers and tstms, mainly this evening.
Thu..S winds 5 to 10 kt. Waves 1 ft.
Thu night..SW winds 10 to 15 kt. Waves 1 ft. Scattered tstms with a chance of showers.
Fri..NW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Fri night..N winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Sat..NE winds 10 to 15 kt. Waves 1 ft.
Sat night..NE winds 10 kt. Waves 1 ft.
Sun..NE winds 10 to 15 kt. Waves 1 to 2 ft.
Mon..E winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 758 Pm Edt Wed Aug 21 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure in the atlantic will promote a light southerly flow over the region today. A cold front will approach the waters late tonight into Thursday, before stalling near or south of the area into Friday. High pressure will then settle over the area Saturday into Sunday.


7 Day Forecast for Marine Location Near Chance, MD
   Hourly   EDIT   Help
location: 38.22, -76.04     debug


Area Discussion for - Wakefield, VA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kakq 212348
afdakq
area forecast discussion
national weather service wakefield va
748 pm edt Wed aug 21 2019

Synopsis
A trough of low pressure will persist across the area through
Thursday. A cold front moves across the area Thursday night,
then stalls along the virginia-north carolina border Friday
before pushing south into the carolinas Saturday. High pressure
builds into the area for the later half of the weekend.

Near term until 6 am Thursday morning
As of 350 pm edt Wednesday...

a weak shortwave aloft driving a complex of showers and storms
across the tidewater, northeastern nc, and the va eastern shore
will move offshore late this afternoon. In its wake, surface
heating destabilization is occurring but coverage of additional
showers in storms is in question with some subsidence behind the
departing shortwave trough. SPC has the area north of the va nc
border in a marginal risk, agitated cumulus clouds are present
over the higher terrain to our west and a weak surface trough
remains over the area so will keep the chance for showers and
storms in the forecast for this evening with the highest chance
near and north of i-64 and across the western portion of the
area where surface heating has been least impeded by clouds
today. Strong straight line winds, heavy rainfall, and frequent
lightning remain the primary hazards from storms this evening.

Any remaining convection will wane late this evening, leaving
partly cloudy to mostly clear conditions for the overnight
period. Some patchy fog is possible late tonight and early
Thursday morning, especially if we can manage some additional
rain storms this evening over the piedmont. Overnight lows range
from the low to mid 70s with some upper 70s S and near the
coast.

Short term 6 am Thursday morning through Saturday
As of 350 pm edt Wednesday...

guidance has trended lower regarding shower and storm coverage
for Thursday but the weak surface trough will remain present
over the area will maintain chance pops for the afternoon with
the relative greatest chance west of the bay. A cold front will
slowly approach from the north but make only modest progress
toward the area Thursday. Temperatures will inch upward on
with low to mid 90s expected away from the immediate coast
where some upper 80s are possible. Dew points will remain in the
low and mid 70s, resulting in afternoon heat indices ranging
from the upper 90s to around 102 degrees Thursday afternoon.

Overnight conditions will be muggy and warm with mostly mid 70s
across the region.

The slow-moving cold front approaches the region on Friday,
bringing thicker clouds an increased chance for showers and
storms along with the threat for heavy rain as precipitable
water values rise to ~2 inches ahead of the boundary. High
temperatures will range from the low 80s N into the upper 80s s.

The front will likely stall near or over southern portions of
the area Friday night with continued chances for heavy rain and
storms as weak waves of low pressure traverse the front. Global
guidance differs with how quickly the front moves south on
Saturday so will maintain the highest pops across the southern
third of the region. Much cooler on Saturday with upper 70s and
low 80s and decreasing humidity from north to south.

Long term Saturday night through Wednesday
As of 4 pm edt Wednesday...

cold front will be south of the area Saturday night, however
some showers may linger behind the front (mainly along and south
of the nc state line). High pressure will build in from the n
behind the front bring cooler air to the area. Temperatures
Sunday morning will be in the upper 50s in the va piedmont and
low to mid 60s along and east of i-95. High temperatures will
only manage to reach the low 80s inland and upper 70s along the
coast with the ene flow. Pops will remain in for Sunday (20-30%)
for showers moving onshore from the atlantic ocean.

Models are indicating a low (possibly tropical) forming off the
outer banks early next week. Both the GFS and ECMWF show a weak
sfc low pressure system moving NE out into the atlantic. Pops
were kept in with the highest towards the coast through
Wednesday as the low passes by. Temperatures will remain on the
mild side as the ene-ne flow continues. Highs will be in the low
to mid 80s with lows in the mid 60s inland to low 70s at the
coast.

Aviation 00z Thursday through Monday
As of 745 pm edt Wednesday...

prevailingVFR conditions are present at the terminals this evening.

A few tstms have developed north and west of the terminals as of 745
pm. These tstms are expected to move to the south east and slowly
weaken during the next few hours. Confidence in a TSTM impacting a
terminal is too low to include any mention of thunder in the tafs.

The best chc of seeing a TSTM (20%) is at ric phf. Tafs will be
amended as needed for any tstms. Drier air will move into the area
later tonight and into the first half of Thursday with mainly sct
high clouds. Winds will remain around 5-10 kt out of the SW tonight.

Sct CU (~5k feet) re-develops Thu aftn, and tstms are expected to
develop across the va mountains piedmont by mid-late aftn. There is
a chc (30-40%) that the tstms will impact the terminals Thu evening,
but too early to include any mention of thunder in the tafs attm.

Outlook... A cold front slowly moves across the local area Thu night
then stalls across nc by late fri. Expect sct to numerous shras and
tstms Fri aftn-fri night... Possibly lingering into Sat across srn
va NE nc (behind the aforementioned cold front).

Marine
As of 350 pm edt Wednesday...

small craft advisories in effect for the coastal waters in addition
to chesapeake bay and the currituck sound into Thursday morning.

S SW winds have slowly been picking up throughout the afternoon
gusting to around 20 kts in some locations. Waves have been 1-2 ft
and seas 2-3 ft. Expect waves to build to 2-3 ft and seas 4-5 feet
by late in the day. As the pressure gradient relaxes Thursday
morning winds will decrease below SCA criteria. A cold front
approaches the area on Thursday but latest model guidance continues
to slow the progression of this front through our area, now appears
to be in the late Friday to early Saturday timeframe. Once the front
finally crosses the area the winds will turn to the N nw.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... Small craft advisory until 4 am edt Thursday for anz630>632-
634-650-652-654-656-658.

Small craft advisory until 1 am edt Thursday for anz633.

Synopsis... Mpr
near term... Rhr
short term... Rhr
long term... Cp
aviation... Cp eri
marine... Cmf


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
BISM2 - 8571421 - Bishops Head, MD 0 mi77 min S 16 G 18 83°F 86°F1012.5 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 22 mi71 min SSW 5.1 G 7 85°F 1012.5 hPa (-0.8)
SLIM2 - 8577330 - Solomons Island, MD 23 mi71 min SW 8.9 G 9.9 85°F 84°F1011.8 hPa (-0.4)
CA2 - 8571892 - Cambridge, MD 25 mi77 min S 8 G 11 83°F 85°F1011.8 hPa
LWTV2 - 8635750 - Lewisetta, VA 27 mi77 min WSW 7 G 8 86°F 84°F1012.1 hPa
PPTM2 - 8578240 - Piney Point, MD 27 mi71 min WSW 5.1 G 8
44062 - Gooses Reef, MD 31 mi53 min SSW 5.8 G 5.8 85°F 1012.8 hPa
WAHV2 - 8631044 - Wachapreague, VA 46 mi71 min SSW 9.9 G 13 82°F 86°F1012.5 hPa (-1.2)
RPLV2 - 8632837 - Rappahannock Light, VA 47 mi71 min 1013.4 hPa (-1.3)
44089 49 mi71 min 78°F4 ft

Wind History for Bishops Head, MD
(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
SE7
G10
E4
N2
SW17
G21
SW7
G11
W10
SW16
SW11
G15
SW14
G17
SW15
SW11
G14
SW15
SW15
G19
SW13
SW12
G15
SW15
SW12
G15
S13
G16
S14
S16
G22
S16
S17
S18
S15
1 day
ago
S12
SW6
W7
G10
SW6
S4
SW6
W8
NW4
N2
NW1
W4
NW2
W3
W3
W4
S2
S1
S4
S8
S10
E13
G16
NE8
G12
E4
SE3
2 days
ago
S6
SE5
SE7
SE5
SW6
S10
SW8
SW8
G11
SW8
S7
S6
SW6
SW6
SW8
S8
S8
S7
SW9
S10
S10
S11
S11
S9
G13
W17

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Patuxent River, Naval Air Station, MD20 mi19 minSW 810.00 miMostly Cloudy85°F72°F65%1011.7 hPa
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD21 mi18 minSSW 810.00 miFair88°F73°F61%1011.6 hPa
Cambridge-Dorchester Airport, MD22 mi31 minN 010.00 miFair81°F77°F89%1011.8 hPa

Link to 5 minute data for KNHK

Wind History from NHK (wind in knots)
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
8
PM
Last 24hrNW3CalmS10S6CalmSW9SW8SW7W5SW6SW6SW7
G14
SW8SW95S6S6S10
G18
S11SW8SW8S9SW5SW8
1 day agoSW13
G19
W8--W4W3N3CalmCalmSW3CalmCalmW4CalmSE4SE4SE6E7SE10SE11SE13E11N6W6W6
2 days agoS4S4S4S5S4S3SE3S3CalmCalmS4CalmSW54SE7W7SW10W76S7SE9S7S8S5

Tide / Current Tables for Hooper Strait Light, Chesapeake Bay, Maryland
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Hooper Strait Light
Click for Map
Wed -- 12:17 AM EDT     0.42 feet Low Tide
Wed -- 06:06 AM EDT     1.76 feet High Tide
Wed -- 06:24 AM EDT     Sunrise
Wed -- 11:53 AM EDT     Moonset
Wed -- 12:22 PM EDT     0.33 feet Low Tide
Wed -- 06:33 PM EDT     1.89 feet High Tide
Wed -- 07:50 PM EDT     Sunset
Wed -- 11:11 PM EDT     Moonrise
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
0.40.50.711.41.61.81.71.51.10.80.50.30.40.60.91.31.71.91.91.71.41.10.8

Tide / Current Tables for Cove Point (1.1 mi. NE of), Maryland Current
   EDIT      (on/off)   Help   One Week of Data
Cove Point (1.1 mi. NE of)
Click for Map
Wed -- 02:01 AM EDT     -0.42 knots Max Ebb
Wed -- 04:53 AM EDT     0.00 knots Slack
Wed -- 06:25 AM EDT     Sunrise
Wed -- 07:24 AM EDT     0.36 knots Max Flood
Wed -- 10:13 AM EDT     -0.00 knots Slack
Wed -- 11:54 AM EDT     Moonset
Wed -- 01:53 PM EDT     -0.45 knots Max Ebb
Wed -- 04:47 PM EDT     0.00 knots Slack
Wed -- 07:51 PM EDT     Sunset
Wed -- 07:56 PM EDT     0.58 knots Max Flood
Wed -- 11:12 PM EDT     Moonrise
Wed -- 11:39 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
-0.2-0.4-0.4-0.4-0.200.20.40.30.20-0.1-0.3-0.4-0.4-0.4-0.20.10.30.50.60.50.30.1

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    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 (20,4,5,8)
      (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.