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Hog Island — September 07, 2026

Hog Island — September 07, 2026

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Reference: Hog Island · 2026-09-07

Group: Apparent horizon with inferior miraging

With the camera positioned 14 inches above the water’s surface, these observations zoom in on the shoreline three miles away. The boat is 0.68 miles away. My interpretation: Due to heavy atmospheric refraction, the conditions on this day actually match the convex globe. However, the refraction appears to be the opposite of the downward bending used in the standard convex-globe refraction model. Here, light is bending upward. An obvious inferior mirage is visible, as on September 12 and October 6.

Weather & River Conditions

Historical · modeled air / NOAA river · nearby, not on-site

Historical context, not on-site measurements. Camera: 39°51′35.9″N, 75°16′47.0″W (project observation location). Air: Open-Meteo archive gridded model, not a station observation. River: nearby NOAA Philadelphia station 8545240, not the Hog Island camera site. River heights use MLLW; predicted tides are not observed water levels. Observed NOAA water levels may be preliminary (q=p), not final verified station data; quality codes and flags are preserved in the cache. All times America/New_York (NOAA local daylight time). Missing values remain unavailable. No ocean-wave or swell inference.

2026-09-07Approx. 11:09 AM ETNear high tide predicted
Air · model
75.4 °F
Water
80.8 °F
Wind
4.2 mph
River
6.919 ft MLLW
Details & sources

Illustrative near-capture comparison at 11:09:13: median embedded still-photo clock; America/New_York assumed, camera clock/timezone not verified. Not a confirmed simultaneous measurement. Model grid returned: 39.89455, -75.31381. NOAA Philadelphia station: 39.9331, −75.1420 (upstream); nearby context can differ from the camera site.

Air temperature
75.4 °F
Modeled · Open-Meteo grid · 2026-09-07T11:00
Water temperature
80.8 °F
Observed · NOAA Philadelphia 8545240 · 2026-09-07 11:12
Wind
4.2 mph
Modeled · hourly grid
Gust
12.8 mph
Modeled · hourly grid
Direction
5 ° true
Modeled · hourly grid
Humidity
54 %
Modeled · hourly grid
Dew point
57.5 °F
Modeled · hourly grid
Surface pressure
1022 hPa
Modeled · hourly grid
Cloud
45 %
Modeled · hourly grid
Precipitation
0 in
Modeled · hourly grid
River level
6.919 ft MLLW
Observed · Philadelphia · 2026-09-07 11:12 · verified
Visibility
Unavailable
Unavailable · archive does not provide visibility

Daily summary · modeled air / astronomical sunrise and sunset: Air low: 61.8 °F; Air high: 79.9 °F; Daily precipitation: 0 in; Sunrise: 2026-09-07T06:34; Sunset: 2026-09-07T19:22; Water temperature observed sample range: 80.8–81.5 °F (240 samples); River level observed sample range: 0.669–8.045 ft MLLW (240 samples)

Predicted tides · NOAA Philadelphia 8545240 · ft MLLW: Low 2026-09-07 05:26 · 1.063 ft MLLW; High 2026-09-07 10:51 · 5.822 ft MLLW; Low 2026-09-07 17:29 · 0.885 ft MLLW; High 2026-09-07 23:16 · 6.907 ft MLLW

Hourly modeled atmosphere (24 hours)
Local timeAir temperature (°F)Wind (mph)Gust (mph)Direction (° true)Humidity (%)Dew point (°F)Surface pressure (hPa)Cloud (%)Precipitation (in)
2026-09-07T00:0065.22.46.51099262.71018.1340
2026-09-07T01:00651.44.3819262.51018.3270
2026-09-07T02:0063.82.52.97294621018.5240
2026-09-07T03:0063.93.97.6519361.91018.800
2026-09-07T04:0063.247.4369561.81018.900
2026-09-07T05:0062.64.28.1259761.7101900
2026-09-07T06:00623.87.8109761.11019.420
2026-09-07T07:0061.84.58.119660.51020.410
2026-09-07T08:0065.449.83588560.81021.320
2026-09-07T09:0069.43.910.7187360.21021.690
2026-09-07T10:0072.53.912.1205857.11021.860
2026-09-07T11:0075.44.212.855457.51022450
2026-09-07T12:0076.74.11365056.51021.5250
2026-09-07T13:0078.54.213.4164555.41021.2220
2026-09-07T14:0079.33.113.43604455.31020.9280
2026-09-07T15:0079.52.41135541541020.5100
2026-09-07T16:0079.92.710.33413952.91020.150
2026-09-07T17:0079.73.410.33243751.41020.250
2026-09-07T18:0078.54.6113263749.91020.730
2026-09-07T19:0075.34.510.733043511021.280
2026-09-07T20:0071.34.59.23305152.41022200
2026-09-07T21:0069.42.88.13396055.11022.5990
2026-09-07T22:0069.11.84.33256255.71022.6950
2026-09-07T23:0067.42.43.82956655.81022.8980
Observed river samples (480)
ProductLocal timeValue
Water temperature2026-09-07 00:0081.3 °F
Water temperature2026-09-07 00:0681.3 °F
Water temperature2026-09-07 00:1281.3 °F
Water temperature2026-09-07 00:1881.3 °F
Water temperature2026-09-07 00:2481.3 °F
Water temperature2026-09-07 00:3081.3 °F
Water temperature2026-09-07 00:3681.3 °F
Water temperature2026-09-07 00:4281.3 °F
Water temperature2026-09-07 00:4881.3 °F
Water temperature2026-09-07 00:5481.3 °F
Water temperature2026-09-07 01:0081.3 °F
Water temperature2026-09-07 01:0681.3 °F
Water temperature2026-09-07 01:1281.3 °F
Water temperature2026-09-07 01:1881.3 °F
Water temperature2026-09-07 01:2481.5 °F
Water temperature2026-09-07 01:3081.5 °F
Water temperature2026-09-07 01:3681.5 °F
Water temperature2026-09-07 01:4281.5 °F
Water temperature2026-09-07 01:4881.5 °F
Water temperature2026-09-07 01:5481.5 °F
Water temperature2026-09-07 02:0081.5 °F
Water temperature2026-09-07 02:0681.5 °F
Water temperature2026-09-07 02:1281.5 °F
Water temperature2026-09-07 02:1881.5 °F
Water temperature2026-09-07 02:2481.5 °F
Water temperature2026-09-07 02:3081.5 °F
Water temperature2026-09-07 02:3681.5 °F
Water temperature2026-09-07 02:4281.5 °F
Water temperature2026-09-07 02:4881.5 °F
Water temperature2026-09-07 02:5481.5 °F
Water temperature2026-09-07 03:0081.5 °F
Water temperature2026-09-07 03:0681.5 °F
Water temperature2026-09-07 03:1281.5 °F
Water temperature2026-09-07 03:1881.5 °F
Water temperature2026-09-07 03:2481.5 °F
Water temperature2026-09-07 03:3081.5 °F
Water temperature2026-09-07 03:3681.5 °F
Water temperature2026-09-07 03:4281.5 °F
Water temperature2026-09-07 03:4881.5 °F
Water temperature2026-09-07 03:5481.5 °F
Water temperature2026-09-07 04:0081.5 °F
Water temperature2026-09-07 04:0681.5 °F
Water temperature2026-09-07 04:1281.5 °F
Water temperature2026-09-07 04:1881.5 °F
Water temperature2026-09-07 04:2481.5 °F
Water temperature2026-09-07 04:3081.5 °F
Water temperature2026-09-07 04:3681.5 °F
Water temperature2026-09-07 04:4281.5 °F
Water temperature2026-09-07 04:4881.5 °F
Water temperature2026-09-07 04:5481.5 °F
Water temperature2026-09-07 05:0081.5 °F
Water temperature2026-09-07 05:0681.5 °F
Water temperature2026-09-07 05:1281.5 °F
Water temperature2026-09-07 05:1881.5 °F
Water temperature2026-09-07 05:2481.5 °F
Water temperature2026-09-07 05:3081.5 °F
Water temperature2026-09-07 05:3681.3 °F
Water temperature2026-09-07 05:4281.3 °F
Water temperature2026-09-07 05:4881.3 °F
Water temperature2026-09-07 05:5481.3 °F
Water temperature2026-09-07 06:0081.3 °F
Water temperature2026-09-07 06:0681.3 °F
Water temperature2026-09-07 06:1281.3 °F
Water temperature2026-09-07 06:1881.3 °F
Water temperature2026-09-07 06:2481.3 °F
Water temperature2026-09-07 06:3081.1 °F
Water temperature2026-09-07 06:3681.1 °F
Water temperature2026-09-07 06:4281.1 °F
Water temperature2026-09-07 06:4881.1 °F
Water temperature2026-09-07 06:5481 °F
Water temperature2026-09-07 07:0081 °F
Water temperature2026-09-07 07:0681 °F
Water temperature2026-09-07 07:1281 °F
Water temperature2026-09-07 07:1881 °F
Water temperature2026-09-07 07:2481 °F
Water temperature2026-09-07 07:3081 °F
Water temperature2026-09-07 07:3681 °F
Water temperature2026-09-07 07:4281 °F
Water temperature2026-09-07 07:4881 °F
Water temperature2026-09-07 07:5481 °F
Water temperature2026-09-07 08:0081 °F
Water temperature2026-09-07 08:0681 °F
Water temperature2026-09-07 08:1281 °F
Water temperature2026-09-07 08:1881 °F
Water temperature2026-09-07 08:2481 °F
Water temperature2026-09-07 08:3081 °F
Water temperature2026-09-07 08:3681 °F
Water temperature2026-09-07 08:4281 °F
Water temperature2026-09-07 08:4881 °F
Water temperature2026-09-07 08:5481 °F
Water temperature2026-09-07 09:0081 °F
Water temperature2026-09-07 09:0681 °F
Water temperature2026-09-07 09:1281 °F
Water temperature2026-09-07 09:1881 °F
Water temperature2026-09-07 09:2481 °F
Water temperature2026-09-07 09:3081 °F
Water temperature2026-09-07 09:3681 °F
Water temperature2026-09-07 09:4281 °F
Water temperature2026-09-07 09:4880.8 °F
Water temperature2026-09-07 09:5480.8 °F
Water temperature2026-09-07 10:0081 °F
Water temperature2026-09-07 10:0680.8 °F
Water temperature2026-09-07 10:1280.8 °F
Water temperature2026-09-07 10:1880.8 °F
Water temperature2026-09-07 10:2480.8 °F
Water temperature2026-09-07 10:3080.8 °F
Water temperature2026-09-07 10:3680.8 °F
Water temperature2026-09-07 10:4280.8 °F
Water temperature2026-09-07 10:4880.8 °F
Water temperature2026-09-07 10:5481 °F
Water temperature2026-09-07 11:0080.8 °F
Water temperature2026-09-07 11:0680.8 °F
Water temperature2026-09-07 11:1280.8 °F
Water temperature2026-09-07 11:1880.8 °F
Water temperature2026-09-07 11:2480.8 °F
Water temperature2026-09-07 11:3080.8 °F
Water temperature2026-09-07 11:3680.8 °F
Water temperature2026-09-07 11:4281 °F
Water temperature2026-09-07 11:4881 °F
Water temperature2026-09-07 11:5481 °F
Water temperature2026-09-07 12:0081 °F
Water temperature2026-09-07 12:0681 °F
Water temperature2026-09-07 12:1281 °F
Water temperature2026-09-07 12:1881 °F
Water temperature2026-09-07 12:2481 °F
Water temperature2026-09-07 12:3081 °F
Water temperature2026-09-07 12:3681 °F
Water temperature2026-09-07 12:4281 °F
Water temperature2026-09-07 12:4881 °F
Water temperature2026-09-07 12:5481 °F
Water temperature2026-09-07 13:0081 °F
Water temperature2026-09-07 13:0681 °F
Water temperature2026-09-07 13:1281 °F
Water temperature2026-09-07 13:1881.1 °F
Water temperature2026-09-07 13:2481.1 °F
Water temperature2026-09-07 13:3081.1 °F
Water temperature2026-09-07 13:3681.3 °F
Water temperature2026-09-07 13:4281.3 °F
Water temperature2026-09-07 13:4881.3 °F
Water temperature2026-09-07 13:5481.3 °F
Water temperature2026-09-07 14:0081.3 °F
Water temperature2026-09-07 14:0681.3 °F
Water temperature2026-09-07 14:1281.3 °F
Water temperature2026-09-07 14:1881.3 °F
Water temperature2026-09-07 14:2481.3 °F
Water temperature2026-09-07 14:3081.3 °F
Water temperature2026-09-07 14:3681.3 °F
Water temperature2026-09-07 14:4281.3 °F
Water temperature2026-09-07 14:4881.3 °F
Water temperature2026-09-07 14:5481.3 °F
Water temperature2026-09-07 15:0081.3 °F
Water temperature2026-09-07 15:0681.5 °F
Water temperature2026-09-07 15:1281.5 °F
Water temperature2026-09-07 15:1881.5 °F
Water temperature2026-09-07 15:2481.5 °F
Water temperature2026-09-07 15:3081.5 °F
Water temperature2026-09-07 15:3681.5 °F
Water temperature2026-09-07 15:4281.5 °F
Water temperature2026-09-07 15:4881.5 °F
Water temperature2026-09-07 15:5481.5 °F
Water temperature2026-09-07 16:0081.5 °F
Water temperature2026-09-07 16:0681.5 °F
Water temperature2026-09-07 16:1281.5 °F
Water temperature2026-09-07 16:1881.5 °F
Water temperature2026-09-07 16:2481.5 °F
Water temperature2026-09-07 16:3081.5 °F
Water temperature2026-09-07 16:3681.5 °F
Water temperature2026-09-07 16:4281.5 °F
Water temperature2026-09-07 16:4881.5 °F
Water temperature2026-09-07 16:5481.5 °F
Water temperature2026-09-07 17:0081.5 °F
Water temperature2026-09-07 17:0681.5 °F
Water temperature2026-09-07 17:1281.5 °F
Water temperature2026-09-07 17:1881.5 °F
Water temperature2026-09-07 17:2481.5 °F
Water temperature2026-09-07 17:3081.5 °F
Water temperature2026-09-07 17:3681.5 °F
Water temperature2026-09-07 17:4281.5 °F
Water temperature2026-09-07 17:4881.5 °F
Water temperature2026-09-07 17:5481.5 °F
Water temperature2026-09-07 18:0081.5 °F
Water temperature2026-09-07 18:0681.5 °F
Water temperature2026-09-07 18:1281.5 °F
Water temperature2026-09-07 18:1881.5 °F
Water temperature2026-09-07 18:2481.3 °F
Water temperature2026-09-07 18:3081.3 °F
Water temperature2026-09-07 18:3681.3 °F
Water temperature2026-09-07 18:4281.3 °F
Water temperature2026-09-07 18:4881.3 °F
Water temperature2026-09-07 18:5481.3 °F
Water temperature2026-09-07 19:0081.3 °F
Water temperature2026-09-07 19:0681.3 °F
Water temperature2026-09-07 19:1281.3 °F
Water temperature2026-09-07 19:1881.3 °F
Water temperature2026-09-07 19:2481.3 °F
Water temperature2026-09-07 19:3081.3 °F
Water temperature2026-09-07 19:3681.3 °F
Water temperature2026-09-07 19:4281.3 °F
Water temperature2026-09-07 19:4881.3 °F
Water temperature2026-09-07 19:5481.3 °F
Water temperature2026-09-07 20:0081.3 °F
Water temperature2026-09-07 20:0681.3 °F
Water temperature2026-09-07 20:1281.3 °F
Water temperature2026-09-07 20:1881.3 °F
Water temperature2026-09-07 20:2481.3 °F
Water temperature2026-09-07 20:3081.1 °F
Water temperature2026-09-07 20:3681.1 °F
Water temperature2026-09-07 20:4281.1 °F
Water temperature2026-09-07 20:4881.1 °F
Water temperature2026-09-07 20:5481.1 °F
Water temperature2026-09-07 21:0081.1 °F
Water temperature2026-09-07 21:0681.1 °F
Water temperature2026-09-07 21:1281.1 °F
Water temperature2026-09-07 21:1881.1 °F
Water temperature2026-09-07 21:2481.1 °F
Water temperature2026-09-07 21:3081.1 °F
Water temperature2026-09-07 21:3681.1 °F
Water temperature2026-09-07 21:4281.1 °F
Water temperature2026-09-07 21:4881.1 °F
Water temperature2026-09-07 21:5481.1 °F
Water temperature2026-09-07 22:0081.1 °F
Water temperature2026-09-07 22:0681.1 °F
Water temperature2026-09-07 22:1281.1 °F
Water temperature2026-09-07 22:1881.1 °F
Water temperature2026-09-07 22:2481.1 °F
Water temperature2026-09-07 22:3081.1 °F
Water temperature2026-09-07 22:3681.1 °F
Water temperature2026-09-07 22:4281.1 °F
Water temperature2026-09-07 22:4881.1 °F
Water temperature2026-09-07 22:5481.1 °F
Water temperature2026-09-07 23:0081.1 °F
Water temperature2026-09-07 23:0681.1 °F
Water temperature2026-09-07 23:1281.1 °F
Water temperature2026-09-07 23:1881.1 °F
Water temperature2026-09-07 23:2481.1 °F
Water temperature2026-09-07 23:3081.1 °F
Water temperature2026-09-07 23:3681.1 °F
Water temperature2026-09-07 23:4281.1 °F
Water temperature2026-09-07 23:4881.1 °F
Water temperature2026-09-07 23:5481.1 °F
River level2026-09-07 00:007.346 ft MLLW
River level2026-09-07 00:067.231 ft MLLW
River level2026-09-07 00:127.116 ft MLLW
River level2026-09-07 00:186.995 ft MLLW
River level2026-09-07 00:246.873 ft MLLW
River level2026-09-07 00:306.752 ft MLLW
River level2026-09-07 00:366.627 ft MLLW
River level2026-09-07 00:426.499 ft MLLW
River level2026-09-07 00:486.368 ft MLLW
River level2026-09-07 00:546.247 ft MLLW
River level2026-09-07 01:006.125 ft MLLW
River level2026-09-07 01:066.007 ft MLLW
River level2026-09-07 01:125.883 ft MLLW
River level2026-09-07 01:185.761 ft MLLW
River level2026-09-07 01:245.64 ft MLLW
River level2026-09-07 01:305.525 ft MLLW
River level2026-09-07 01:365.413 ft MLLW
River level2026-09-07 01:425.295 ft MLLW
River level2026-09-07 01:485.184 ft MLLW
River level2026-09-07 01:545.072 ft MLLW
River level2026-09-07 02:004.961 ft MLLW
River level2026-09-07 02:064.849 ft MLLW
River level2026-09-07 02:124.734 ft MLLW
River level2026-09-07 02:184.623 ft MLLW
River level2026-09-07 02:244.518 ft MLLW
River level2026-09-07 02:304.413 ft MLLW
River level2026-09-07 02:364.295 ft MLLW
River level2026-09-07 02:424.18 ft MLLW
River level2026-09-07 02:484.068 ft MLLW
River level2026-09-07 02:543.957 ft MLLW
River level2026-09-07 03:003.848 ft MLLW
River level2026-09-07 03:063.74 ft MLLW
River level2026-09-07 03:123.632 ft MLLW
River level2026-09-07 03:183.524 ft MLLW
River level2026-09-07 03:243.419 ft MLLW
River level2026-09-07 03:303.307 ft MLLW
River level2026-09-07 03:363.199 ft MLLW
River level2026-09-07 03:423.094 ft MLLW
River level2026-09-07 03:482.989 ft MLLW
River level2026-09-07 03:542.89 ft MLLW
River level2026-09-07 04:002.785 ft MLLW
River level2026-09-07 04:062.687 ft MLLW
River level2026-09-07 04:122.592 ft MLLW
River level2026-09-07 04:182.493 ft MLLW
River level2026-09-07 04:242.395 ft MLLW
River level2026-09-07 04:302.3 ft MLLW
River level2026-09-07 04:362.218 ft MLLW
River level2026-09-07 04:422.146 ft MLLW
River level2026-09-07 04:482.064 ft MLLW
River level2026-09-07 04:541.982 ft MLLW
River level2026-09-07 05:001.9 ft MLLW
River level2026-09-07 05:061.827 ft MLLW
River level2026-09-07 05:121.762 ft MLLW
River level2026-09-07 05:181.706 ft MLLW
River level2026-09-07 05:241.654 ft MLLW
River level2026-09-07 05:301.617 ft MLLW
River level2026-09-07 05:361.585 ft MLLW
River level2026-09-07 05:421.562 ft MLLW
River level2026-09-07 05:481.562 ft MLLW
River level2026-09-07 05:541.581 ft MLLW
River level2026-09-07 06:001.637 ft MLLW
River level2026-09-07 06:061.726 ft MLLW
River level2026-09-07 06:121.854 ft MLLW
River level2026-09-07 06:182.024 ft MLLW
River level2026-09-07 06:242.195 ft MLLW
River level2026-09-07 06:302.392 ft MLLW
River level2026-09-07 06:362.592 ft MLLW
River level2026-09-07 06:422.766 ft MLLW
River level2026-09-07 06:482.969 ft MLLW
River level2026-09-07 06:543.14 ft MLLW
River level2026-09-07 07:003.327 ft MLLW
River level2026-09-07 07:063.51 ft MLLW
River level2026-09-07 07:123.688 ft MLLW
River level2026-09-07 07:183.852 ft MLLW
River level2026-09-07 07:244.012 ft MLLW
River level2026-09-07 07:304.167 ft MLLW
River level2026-09-07 07:364.314 ft MLLW
River level2026-09-07 07:424.455 ft MLLW
River level2026-09-07 07:484.593 ft MLLW
River level2026-09-07 07:544.738 ft MLLW
River level2026-09-07 08:004.849 ft MLLW
River level2026-09-07 08:064.951 ft MLLW
River level2026-09-07 08:125.095 ft MLLW
River level2026-09-07 08:185.19 ft MLLW
River level2026-09-07 08:245.305 ft MLLW
River level2026-09-07 08:305.354 ft MLLW
River level2026-09-07 08:365.538 ft MLLW
River level2026-09-07 08:425.646 ft MLLW
River level2026-09-07 08:485.748 ft MLLW
River level2026-09-07 08:545.843 ft MLLW
River level2026-09-07 09:005.942 ft MLLW
River level2026-09-07 09:066.033 ft MLLW
River level2026-09-07 09:126.109 ft MLLW
River level2026-09-07 09:186.194 ft MLLW
River level2026-09-07 09:246.273 ft MLLW
River level2026-09-07 09:306.345 ft MLLW
River level2026-09-07 09:366.414 ft MLLW
River level2026-09-07 09:426.473 ft MLLW
River level2026-09-07 09:486.529 ft MLLW
River level2026-09-07 09:546.588 ft MLLW
River level2026-09-07 10:006.644 ft MLLW
River level2026-09-07 10:066.703 ft MLLW
River level2026-09-07 10:126.759 ft MLLW
River level2026-09-07 10:186.818 ft MLLW
River level2026-09-07 10:246.877 ft MLLW
River level2026-09-07 10:306.926 ft MLLW
River level2026-09-07 10:366.965 ft MLLW
River level2026-09-07 10:426.988 ft MLLW
River level2026-09-07 10:486.998 ft MLLW
River level2026-09-07 10:546.998 ft MLLW
River level2026-09-07 11:006.982 ft MLLW
River level2026-09-07 11:066.955 ft MLLW
River level2026-09-07 11:126.919 ft MLLW
River level2026-09-07 11:186.867 ft MLLW
River level2026-09-07 11:246.808 ft MLLW
River level2026-09-07 11:306.739 ft MLLW
River level2026-09-07 11:366.66 ft MLLW
River level2026-09-07 11:426.578 ft MLLW
River level2026-09-07 11:486.49 ft MLLW
River level2026-09-07 11:546.398 ft MLLW
River level2026-09-07 12:006.302 ft MLLW
River level2026-09-07 12:066.201 ft MLLW
River level2026-09-07 12:126.096 ft MLLW
River level2026-09-07 12:185.981 ft MLLW
River level2026-09-07 12:245.856 ft MLLW
River level2026-09-07 12:305.738 ft MLLW
River level2026-09-07 12:365.617 ft MLLW
River level2026-09-07 12:425.492 ft MLLW
River level2026-09-07 12:485.377 ft MLLW
River level2026-09-07 12:545.253 ft MLLW
River level2026-09-07 13:005.128 ft MLLW
River level2026-09-07 13:065.013 ft MLLW
River level2026-09-07 13:124.902 ft MLLW
River level2026-09-07 13:184.79 ft MLLW
River level2026-09-07 13:244.682 ft MLLW
River level2026-09-07 13:304.57 ft MLLW
River level2026-09-07 13:364.455 ft MLLW
River level2026-09-07 13:424.344 ft MLLW
River level2026-09-07 13:484.232 ft MLLW
River level2026-09-07 13:544.124 ft MLLW
River level2026-09-07 14:004.019 ft MLLW
River level2026-09-07 14:063.911 ft MLLW
River level2026-09-07 14:123.796 ft MLLW
River level2026-09-07 14:183.691 ft MLLW
River level2026-09-07 14:243.586 ft MLLW
River level2026-09-07 14:303.478 ft MLLW
River level2026-09-07 14:363.363 ft MLLW
River level2026-09-07 14:423.258 ft MLLW
River level2026-09-07 14:483.15 ft MLLW
River level2026-09-07 14:543.041 ft MLLW
River level2026-09-07 15:002.936 ft MLLW
River level2026-09-07 15:062.835 ft MLLW
River level2026-09-07 15:122.733 ft MLLW
River level2026-09-07 15:182.621 ft MLLW
River level2026-09-07 15:242.52 ft MLLW
River level2026-09-07 15:302.411 ft MLLW
River level2026-09-07 15:362.313 ft MLLW
River level2026-09-07 15:422.208 ft MLLW
River level2026-09-07 15:482.11 ft MLLW
River level2026-09-07 15:542.008 ft MLLW
River level2026-09-07 16:001.909 ft MLLW
River level2026-09-07 16:061.811 ft MLLW
River level2026-09-07 16:121.713 ft MLLW
River level2026-09-07 16:181.621 ft MLLW
River level2026-09-07 16:241.532 ft MLLW
River level2026-09-07 16:301.444 ft MLLW
River level2026-09-07 16:361.348 ft MLLW
River level2026-09-07 16:421.266 ft MLLW
River level2026-09-07 16:481.181 ft MLLW
River level2026-09-07 16:541.102 ft MLLW
River level2026-09-07 17:001.027 ft MLLW
River level2026-09-07 17:060.945 ft MLLW
River level2026-09-07 17:120.876 ft MLLW
River level2026-09-07 17:180.81 ft MLLW
River level2026-09-07 17:240.758 ft MLLW
River level2026-09-07 17:300.715 ft MLLW
River level2026-09-07 17:360.682 ft MLLW
River level2026-09-07 17:420.669 ft MLLW
River level2026-09-07 17:480.679 ft MLLW
River level2026-09-07 17:540.728 ft MLLW
River level2026-09-07 18:000.824 ft MLLW
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River level2026-09-07 18:181.388 ft MLLW
River level2026-09-07 18:241.644 ft MLLW
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River level2026-09-07 18:362.119 ft MLLW
River level2026-09-07 18:422.352 ft MLLW
River level2026-09-07 18:482.575 ft MLLW
River level2026-09-07 18:542.802 ft MLLW
River level2026-09-07 19:003.028 ft MLLW
River level2026-09-07 19:063.228 ft MLLW
River level2026-09-07 19:123.419 ft MLLW
River level2026-09-07 19:183.609 ft MLLW
River level2026-09-07 19:243.796 ft MLLW
River level2026-09-07 19:303.967 ft MLLW
River level2026-09-07 19:364.127 ft MLLW
River level2026-09-07 19:424.288 ft MLLW
River level2026-09-07 19:484.439 ft MLLW
River level2026-09-07 19:544.593 ft MLLW
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River level2026-09-07 20:064.892 ft MLLW
River level2026-09-07 20:125.039 ft MLLW
River level2026-09-07 20:185.18 ft MLLW
River level2026-09-07 20:245.328 ft MLLW
River level2026-09-07 20:305.469 ft MLLW
River level2026-09-07 20:365.61 ft MLLW
River level2026-09-07 20:425.751 ft MLLW
River level2026-09-07 20:485.883 ft MLLW
River level2026-09-07 20:546.014 ft MLLW
River level2026-09-07 21:006.135 ft MLLW
River level2026-09-07 21:066.25 ft MLLW
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River level2026-09-07 21:186.47 ft MLLW
River level2026-09-07 21:246.575 ft MLLW
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River level2026-09-07 21:366.775 ft MLLW
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River level2026-09-07 21:486.955 ft MLLW
River level2026-09-07 21:547.041 ft MLLW
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River level2026-09-07 22:127.346 ft MLLW
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River level2026-09-07 22:367.71 ft MLLW
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River level2026-09-07 22:547.9 ft MLLW
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River level2026-09-07 23:127.995 ft MLLW
River level2026-09-07 23:188.018 ft MLLW
River level2026-09-07 23:248.041 ft MLLW
River level2026-09-07 23:308.045 ft MLLW
River level2026-09-07 23:368.028 ft MLLW
River level2026-09-07 23:428.009 ft MLLW
River level2026-09-07 23:487.982 ft MLLW
River level2026-09-07 23:547.94 ft MLLW
Source provenance and cached requests
Horizon distance · 14 in camera height
Geometric horizon1.32 mi
With standard refraction1.43 mi
Adjust height

Lens height above water. Assumed refraction: k=0 and 1/7—not measured.

Blank uses recorded height. Changes are not saved.

Refraction needed to match this observation

Recorded lens height: 1.16667 ft above water.

Required coefficientk ≈ +0.806
Downward bending needed5.6× standard refraction

This convex-Earth model requires light to bend downward 5.6 times as strongly as standard refraction. This is a calculated model requirement, not a measurement of the atmosphere.

Observation & model assumptions

Apparent horizon approximately 3 miles away · obvious inferior mirage reported.

This fits the reported approximate horizon distance, not the mirage image. An inferior mirage supports upward bending locally; a single-curvature horizon fit cannot reconstruct layered mirage paths, even when its fitted bending is downward.

The effective-sphere horizon arc is inverted numerically using radius R/(1−k), exactly matching the horizon comparison above. The approximate reported distance makes this an approximate requirement.

One uniform-curvature convex-Earth model; positive k means downward bending. Standard k = +1/7 ≈ +0.143; Earth radius 3,958.76 miles. Water/bow fits use the small-angle parabolic approximation and assume the shoreline water is behind the bow on the same sightline. Lens height is above local water. Observer-provided distances, heights and classifications are not calibrated atmospheric measurements. No detectable mirage does not mean no refraction; this fit does not exclude layered explanations.

Photos

8 high-quality images ordered by capture date