Thursday, March4, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Butler, MD

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:31AMSunset 6:02PM Thursday March 4, 2021 3:58 PM EST (20:58 UTC) Moonrise 12:00AMMoonset 9:48AM Illumination 64% 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
ANZ530 Chesapeake Bay North Of Pooles Island- 344 Pm Est Thu Mar 4 2021
.small craft advisory in effect through Friday afternoon...
Rest of this afternoon..NW winds 15 kt with gusts to 25 kt. Waves 2 ft.
Tonight..NW winds 10 to 15 kt with gusts to 30 kt. Waves 2 ft.
Fri..NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Fri night..NW winds 10 kt with gusts to 20 kt. Waves 1 ft.
Sat..NW winds 10 kt with gusts to 20 kt. Waves 1 ft.
Sat night..NW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Sun..N winds 5 to 10 kt. Waves 1 ft.
Mon..SW winds 5 kt. Waves less than 1 ft.
ANZ500


7 Day Forecast for Marine Location Near Butler, MD
   Hourly   EDIT   Help
location: 39.3, -76.17     debug


Area Discussion for - Philadelphia/Mount Holly, PA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KPHI 042033 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 333 PM EST Thu Mar 4 2021

SYNOPSIS. High pressure dominates our weather through the middle of next week. A cold front will approach the region later in the week.

NEAR TERM /THROUGH FRIDAY/. A tight northwest pressure gradient remains over the Northeast and down into the Mid-Atlantic as the region is caught between low pressure over eastern Canada and high pressure building in to the Northern Plains and upper Great Lakes region. A deep upper trough will be over the region as well, and strong CAA will be underway tonight through Friday. A weak LLJ of 35-40 kt winds will be over the area as well, and while most of the winds will mix down, winds will not be strong enough to warrant a Wind Advisory. Northwest winds will range from 15-20 mph with gusts up to 30 mph through this evening before diminishing a bit during the overnight due to loss of mixing from diurnal heating. By late Friday morning, winds increase back up to 15-20 mph with 25-35 mph gusts, diminishing again towards evening.

Lows tonight will drop into the teens across the northern zones, and otherwise in the low to mid 20s. On Friday, highs will range from the mid 20s in the southern Poconos to the mid and upper 30s.

Wind chills late tonight and early Friday morning will range from as low as 10 below in the southern Poconos, to otherwise in the single digits to low teens.

For reference, highs on Friday will be around 10 degrees below normal, and more similar to the seasonal highs around mid-January. Low temperature records tonight and record low high temperatures on Friday will not be challenged.

SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/. The high builds overhead through the weekend keeping our weather nice and dry. An upper trough digs down through the Great Lakes and deepens as it crosses our area late Saturday. This trough will be the reason our temperatures remain on the colder side through Sunday. Temperatures on Saturday and Sunday will be pretty similar with highs in the mid 30s to lower 40s. The southern Poconos and the higher elevations of northwest New Jersey may struggle to reach 30 both days.

LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/. The upper trough pushes to the east of the region Sunday night as the surface high shifts overhead. As the trough exits the region we will start to see the airmass modify and warm.

Temperatures on Monday start to get back near and above normal with highs reaching into the upper 40s to near 50 across much of the region.

The high settles just south of our area and keeps us in the southwest flow with strong warm air advection taking place. Each day will warm appreciably with highs on Tuesday reaching into the upper 50s to lower 60s. Wednesday looks to be in the 60s for most of the area and by Thursday we are even warmer with highs possibly nearing 70 in some areas.

The next chance for precipitation at this point looks to be later in the week. Low pressure starts to move through the Great Lakes on Wednesday. The attendant cold front will slowly drop down into the Mid-Atlantic on Thursday. Low pressure may develop along the front, which would help to pull it through our forecast area, possibly late Thursday or Friday. Obviously, this is at the tail end of the period and has plenty of uncertainty associated with it as the energy associated with this system may not move onshore until early next week. One thing for certain is that the temperatures ahead of the system will be exceedingly warm, leaving us with an all rain event.

AVIATION /21Z THURSDAY THROUGH TUESDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Tonight . VFR. Any lingering stratocu at around 5000 feet will dissipate after 00Z. SKC conditions thereafter. NW winds 15-20 kt with 25-30 kt gusts, diminishing to around 15 kt with gusts up to 20 kt later tonight. High confidence.

Friday . VFR/SKC. NW winds 15-20 kt with 25-30 kt gusts. High confidence.

Outlook .

Friday night through Saturday . VFR. Northwest winds around 10 to 15 knots with gusts around 25 knots. High confidence.

Sunday . VFR. West to northwest winds around 10 knots. High confidence.

Monday and Tuesday . VFR. West to southwest winds less than 10 knots. High confidence.

MARINE. A tight pressure gradient remains on the waters through at least Friday. NW winds will range from 15-20 kt with 25-30 kt gusts during this time, and seas will build to 3 to 5 feet on the ocean. A SCA remains in effect for all waters during this time.

Cannot rule out a few gale force gusts this evening, but do not think gales will be widespread enough nor long lived enough to warrant a Gale Warning.

There is a chance for freezing spray late tonight through Friday morning due to the strong NW flow and sea surface temps in the upper 30s to low 40s.

Outlook .

Friday night through Saturday . Northwest winds around 10 to 20 knots with gusts around 25 to 30 knots. Seas 2 to 4 feet. Winds expected to fall below SCA conditions on Saturday.

Saturday night through Tuesday . Sub-advisory conditions expected.

FIRE WEATHER. A prolonged period of dry weather will last into the middle of next week. Strong northwest winds will be in place tonight through Friday.

A cold and dry airmass will spread over the region starting tonight, and min RH values on Friday will range from around 20 to 25 percent across southeast Pennsylvania, much of New Jersey, the eastern shores of Maryland, and Delaware. Afternoon wind gusts will be as high as 25 to 35 mph.

Conditions will somewhat abate on Saturday, with min RH values generally 35 to 40 percent and afternoon wind gusts as high as 20 mph.

Based on coordination with fire-weather partners, there will neither be a Special Weather Statement nor a Red Flag Warning for Friday, as fuels are not sufficiently dry enough. Though winds will be lighter this weekend, dew points will remain unusually low, so conditions may be close to fire-weather thresholds several days in a row.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . Small Craft Advisory until 6 AM EST Saturday for ANZ430-431- 450>455.

Synopsis . Meola Near Term . MPS Short Term . Meola Long Term . Meola Aviation . Meola/MPS Marine . Meola/MPS Fire Weather . WFO PHI


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
TCBM2 - 8573364 - Tolchester Beach, MD 7 mi58 min NNW 15 G 17 46°F 42°F1011.5 hPa (-1.0)
FSNM2 20 mi58 min WNW 26 G 29 48°F 1010.6 hPa (-1.2)
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 20 mi58 min NW 21 G 23 48°F 1010.9 hPa
BLTM2 - 8574680 - Baltimore, MD 22 mi58 min N 13 G 19 49°F 41°F1011.1 hPa (-0.9)
CPVM2 24 mi58 min 51°F 26°F
CHCM2 - 8573927 - Chesapeake City, MD 25 mi58 min NW 14 G 20 47°F 41°F1011.1 hPa (-0.8)
APAM2 - 8575512 - Annapolis, MD 27 mi58 min WNW 15 G 21 50°F 42°F1010.6 hPa (-1.3)
TPLM2 - Thomas Point, MD 31 mi58 min W 16 G 22 50°F 40°F1011.9 hPa (-1.4)23°F
DELD1 - 8551762 - Delaware City, DE 36 mi58 min NNW 9.9 G 17 45°F 1010.6 hPa (-0.8)
RDYD1 - 8551910 - Reedy Point, DE 36 mi58 min 46°F 39°F1010.3 hPa (-0.7)
DRSD1 - Delaware Reserve, DE 41 mi88 min WNW 8.9 50°F 1011 hPa28°F
SJSN4 - 8537121 - Ship John Shoal, NJ 42 mi58 min NNW 16 G 17 44°F 39°F1011 hPa (-1.0)
BSLM2 - Chesapeake Bay, MD 46 mi88 min N 8 53°F 1011 hPa26°F

Wind History for Tolchester Beach, MD
(wind in knots)    EDIT      (on/off)   Help
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
-12
PM
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
Last
24hr
SW7
S5
G8
S5
S6
G9
S6
G9
S5
G9
S4
G7
S4
S4
G7
SW7
W5
N4
SW3
N6
N8
N8
NW8
NW9
NW18
NW12
NW10
G13
NW14
G17
NW13
1 day
ago
SW3
G6
SW2
--
SW2
SE2
S3
G6
S4
G7
S4
G7
S5
G11
S5
G10
S5
G9
SW9
SW14
SW10
SW8
G11
S6
G9
S8
G11
SW11
SW8
SW4
SW4
SW5
SW8
SW7
G10
2 days
ago
NW15
G19
NW16
G22
NW14
G17
NW18
G22
NW16
G21
NW21
NW16
G21
NW20
G27
NW21
G29
NW20
NW22
NW22
G29
NW22
G27
NW20
NW17
G22
N20
NW20
G28
NW22
G27
N14
G18
NW11
G17
N13
G17
N12
G15
N6
G10
NW4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Phillips Army Air Field / Aberdeen, MD12 mi60 minWNW 14 G 218.00 miMostly Cloudy49°F21°F33%1011.5 hPa
Baltimore / Martin, MD14 mi63 minWNW 18 G 2810.00 miPartly Cloudy and Breezy52°F27°F38%1011.8 hPa
Bay Bridge Field, MD24 mi63 minNNW 10 G 1610.00 miPartly Cloudy50°F30°F47%1011.2 hPa

Link to 5 minute data for KAPG

Wind History from APG (wind in knots)
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
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
Last 24hrSW7S8SW3W5SW5W3CalmW3W5W4NW3NW6CalmCalmCalmCalmNW6NW7NW14
G22
NW13
G19
NW10
G19
NW11
G24
NW10NW14
G21
1 day agoW5W5W5CalmCalmCalmCalmCalmCalmCalmCalmCalmW4W3CalmW4W5W8W7SW6W7
G14
W8SW6SW8
2 days agoNW7NW12
G21
NW7NW6NW12
G23
NW7
G18
NW13
G19
NW9NW9
G19
NW9
G17
NW9
G20
NW4NW8NW9
G17
NW10NW8NW8NW9
G16
NW9
G20
NW8NW10
G14
N6W11
G17
W8

Tide / Current Tables for Worton Creek entrance, Maryland
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Worton Creek entrance
Click for Map
Thu -- 05:24 AM EST     -0.24 feet Low Tide
Thu -- 06:32 AM EST     Sunrise
Thu -- 09:47 AM EST     Moonset
Thu -- 11:46 AM EST     1.60 feet High Tide
Thu -- 06:00 PM EST     Sunset
Thu -- 06:55 PM EST     0.05 feet Low Tide
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
1.10.80.50.2-0.1-0.2-0.2-00.40.81.31.51.61.51.20.90.60.30.100.10.40.70.9

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
   EDIT      (on/off)   Help   One Week of Data
Baltimore Harbor Approach
Click for Map
Thu -- 02:27 AM EST     -0.77 knots Max Ebb
Thu -- 05:23 AM EST     0.00 knots Slack
Thu -- 06:33 AM EST     Sunrise
Thu -- 08:58 AM EST     1.08 knots Max Flood
Thu -- 09:49 AM EST     Moonset
Thu -- 12:30 PM EST     -0.00 knots Slack
Thu -- 03:38 PM EST     -0.86 knots Max Ebb
Thu -- 06:01 PM EST     Sunset
Thu -- 07:09 PM EST     0.00 knots Slack
Thu -- 09:34 PM EST     0.45 knots Max Flood
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
-0.3-0.6-0.7-0.7-0.5-0.20.30.711.110.70.2-0.2-0.6-0.8-0.8-0.7-0.4-0.10.20.40.40.3

Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Please read website Cookie, Privacy, and Disclamers by clicking HERE.