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Station BNKF1 - Butternut Key, FL Image indicating link to RSS feed of recent meteorological observations for station BNKF1

Owned and maintained by Everglades National Park
Water Quality Station
25.087 N 80.519 W (25°5'12" N 80°31'8" W)

Site elevation: sea level
Sea temp depth: 1.5 m below MLLW

Water levels are referenced to local datums.  They provide relative change in water level and are not to be used for navigation.

Latest NWS Marine Forecast

Search And Rescue (SAR) Data

Meteorological Observations from Nearby Stations and Ships Image indicating link to RSS feed of recent meteorological observations near station BNKF1

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yellow diamond Stations with recent data
red diamond Stations with no data in last 8 hours
(24 hours for tsunami stations)
Station BNKF1

Conditions at BNKF1 as of
(2:00 pm EDT)
1800 GMT on 07/27/2026:
     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.

5-day plot - Water Temperature Water Temperature (WTMP): 89.2 °F
5-day plot - Salinity Salinity (SAL): 39.56 psu
5-day plot - Tide (above MLLW) Tide (above MLLW) (TIDE): 0.07 ft
Previous observations
TIME
(EDT)		 5-day plot - Wind Direction
WDIR
 		 5-day plot - Wind Speed
WSPD
kts		 5-day plot - Wind Gust
GST
kts		 5-day plot - Wave Height
WVHT
ft		 5-day plot - Dominant Wave Period
DPD
sec		 5-day plot - Average Wave Period
APD
sec		 5-day plot - Mean Wave Direction
MWD
 		 5-day plot - Atmospheric Pressure
PRES
in		 5-day plot - Pressure Tendency
PTDY
in		 5-day plot - Air Temperature
ATMP
°F		 5-day plot - Water Temperature
WTMP
°F		 5-day plot - Dew Point
DEWP
°F		 5-day plot - Salinity
SAL
psu		 5-day plot - Visibility
VIS
nmi		 5-day plot - Tide (above MLLW)
TIDE
ft
2026-07-27 01:00 pm---------- 89.1- 39.56- 0.12
2026-07-27 12:00 pm---------- 88.5- 39.55- 0.06
2026-07-27 11:00 am---------- 88.5- 39.57- 0.14
2026-07-27 10:00 am---------- 88.2- 39.57- 0.08
2026-07-27 09:00 am---------- 88.0- 39.56--0.02
2026-07-27 08:00 am---------- 88.0- 39.54--0.04
2026-07-27 07:00 am---------- 88.5- 39.50--0.05
2026-07-27 06:00 am---------- 88.7- 39.51--0.04
2026-07-27 05:00 am---------- 88.9- 39.51--0.05
2026-07-27 04:00 am---------- 89.1- 39.53- 0.00
2026-07-27 03:00 am---------- 89.2- 39.54- 0.01
2026-07-27 02:00 am---------- 89.2- 39.52- 0.02
2026-07-27 01:00 am---------- 89.8- 39.51- 0.03
2026-07-27 12:00 am---------- 90.0- 39.50- 0.11
2026-07-26 11:00 pm---------- 90.1- 39.47- 0.08
2026-07-26 05:00 pm---------- 91.0- 39.62- 0.01
2026-07-26 04:00 pm---------- 90.7- 39.63- 0.02
2026-07-26 03:00 pm---------- 90.7- 39.62- 0.02
Ocean Conditions at BNKF1 as of
(2:00 pm EDT)
1800 GMT on 07/27/2026:

These oceanographic data are displayed in rounded times.

     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.

Depth (DEPTH): 4.9 ft
5-day plot - Ocean Temperature Ocean Temperature (OTMP):89.31 °F
5-day plot - Salinity Salinity (SAL):39.56 psu
Previous observations
TIME
(EDT)		 DEPTH
ft		 5-day plot - Ocean Temperature
OTMP
°F		 5-day plot - Conductivity
COND
mS/cm		 5-day plot - Salinity
SAL
psu		 5-day plot - Oxygen Saturation
O2%
%		 5-day plot - Oxygen Concentration
O2PPM
ppm		 5-day plot - Chlorophyll
CLCON
ug/l		 5-day plot - Turbidity
TURB
FTU		 5-day plot - pH
PH
 		 5-day plot - Eh
EH
mV
2026-07-27 01:00 pm 4.989.04-39.56------
2026-07-27 12:00 pm 4.988.54-39.55------
2026-07-27 11:00 am 4.988.47-39.57------
2026-07-27 10:00 am 4.988.20-39.57------
2026-07-27 09:00 am 4.987.91-39.56------
2026-07-27 08:00 am 4.988.02-39.54------
2026-07-27 07:00 am 4.988.43-39.50------
2026-07-27 06:00 am 4.988.72-39.51------
2026-07-27 05:00 am 4.988.86-39.51------
2026-07-27 04:00 am 4.989.06-39.53------
2026-07-27 03:00 am 4.989.31-39.54------
2026-07-27 02:00 am 4.989.31-39.52------
2026-07-27 01:00 am 4.989.69-39.51------
2026-07-27 12:00 am 4.989.96-39.50------
2026-07-26 11:00 pm 4.990.07-39.47------
2026-07-26 05:00 pm 4.990.97-39.62------
2026-07-26 04:00 pm 4.990.72-39.63------
2026-07-26 03:00 pm 4.990.68-39.62------
Rainfall at BNKF1 as of
(2:00 pm EDT)
1800 GMT on 07/27/2026:
     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.

* indicates interpolated rain values

Previous observations
5-day plot - Hourly Rain Accmulation -------- Ten-minute Rain Rates (Centered at hour + minutes) ---------
   TIME
(EDT)		   Hourly Accum
inches		 0
inches/hour		 10
inches/hour		 20
inches/hour		 30
inches/hour		 40
inches/hour		 50
inches/hour
2026-07-27 02:00 pm0.00- - - - - - 
2026-07-27 01:00 pm0.00- - - - - - 
2026-07-27 12:00 pm0.00- - - - - - 
2026-07-27 11:00 am0.00- - - - - - 
2026-07-27 10:00 am0.00- - - - - - 
2026-07-27 09:00 am0.00- - - - - - 
2026-07-27 08:00 am0.00- - - - - - 
2026-07-27 07:00 am0.00- - - - - - 
2026-07-27 06:00 am0.00- - - - - - 
2026-07-27 05:00 am0.00- - - - - - 
2026-07-27 04:00 am0.00- - - - - - 
2026-07-27 03:00 am0.00- - - - - - 
2026-07-27 02:00 am0.00- - - - - - 
2026-07-27 01:00 am0.00- - - - - - 
2026-07-27 12:00 am0.00- - - - - - 
2026-07-26 11:00 pm0.00- - - - - - 
2026-07-26 05:00 pm0.00- - - - - - 
2026-07-26 04:00 pm0.00- - - - - - 
2026-07-26 03:00 pm0.00- - - - - -