NOAA / GLERL / CoastWatch Great Lakes Node

NOAAPORT - Realtime Great Lakes Weather Data and Marine Observations

This page contains realtime marine data from Great Lakes buoys, coastal met stations, airports, and ships. The data are transmitted through the NOAAPORT system and are received continuously at NOAA/GLERL via satellite dish. Marine obs include wind speed, wind gust, wind direction, air temperature, dew point, cloud cover, sea level pressure, water temperature, wave height, wave period, and live tracking of Great Lakes ship locations.

Most recent observation: Nov-15 06:16 UTC (DOY 319)
This page is updated hourly at approx. 21 minutes past the hour
Click in a lake below to jump to realtime obs for that lake

Note: The map to the left is static and shows all fixed NOAAPORT stations that have reported data over the past two years.

To view live data, click on a lake in the map to jump to realtime data for that lake, or click on a data type or an individual station below to jump to realtime obs for that data type or station.

Utilities:

statistics.txt

Station/Lake Plot

Boxplot by Variable

receiver Signal Strength

Click on a data type or an individual station below to jump to realtime obs for that data type or station

ALL OBSERVATIONS ()
Data only (2026) | Data format | Description of Measurements (NDBC)

Buoys (10)
Data only
45001 45004 45006 45012 45013 45161 45164 45176 45196 45197

CMAN & U.S. Coast Guard Stations (86)
includes GLERL,NDBC,NWS,NOS,USCG Data only
AGCM4 ALXN6 APNM4 ASBO1 BARN6 BCTP1 BIGM4 BSBM4 BUFN6 CAVN6 CBLO1 CHII2 CLSM4 CMTI2 CNDO1 CNII2 DBLN6 DISW3 DTLM4 DULM5 FAIO1 FPTM4 FSTI2 FTGM4 GBWW3 GDMM5 GRCM4 GRMM4 GTLM4 GTRM4 HHLO1 HLNM4 HRBM4 KWNW3 LDTM4 LPNM4 LTRM4 MACM4 MBRM4 MCGM4 MCYI3 MKGM4 MLWW3 MNMM4 MRHO1 NABM4 NIAN6 NPDW3 NREP1 OBGN6 OKSI2 OLCN6 OSGN6 OTNM4 OWMO1 OWXO1 PILM4 PKBW3 PNGW3 PNLM4 PSTN6 PTIM4 PWAW3 RCKM4 RCRN6 ROAM4 RPRN6 SBIO1 SBLM4 SGNW3 SLVM5 SRLM4 STDM4 SVNM4 SWPM4 SXHW3 TAWM4 TBIM4 THLO1 THRO1 TRTP1 TWCO1 VRMO1 WCRP1 WHRI2 WNEM4

Ship Reports (14)
Data only
CFFO CFJ8305 VDAS VDCY WAV4647 WDD2875 WDE3568 WDG2047 WDH7557 WDH7558 WL3108 WQZ7791 WXY6216 XJBH

Surface Airways Stations (81)
Data only
ACB ANJ APN ART ASX BAX BEH BIV BKL BUF CGF CIU CKC CLE CMX COQ CVX DET DKK DLH DRM DTW DUH DYT ENW ERI ERY ESC ETB FKS FZY GNA GRB GYY HYX HZY IAG ISQ IWD JHW LDM LPR MBL MBS MDW MGC MGN MKE MKG MNM MTC MTW MWC ONZ ORD OSC P53 P58 P59 PHN PLN PWK PZQ RAC ROC SAW SBM SBN SJX SLH SUE SUW SYR TDZ TOL TTF TVC TWM UES UGN VPZ

Note: Only stations containing data for current day are listed

Location of all fixed stations active within the past two years:
Buoy (59) | CMAN (97) | Surface Airway (131) | All (287)
Location of fixed stations not currently reporting data:
Buoy (0) | CMAN (0) | Surface Airway (0) | All (0)

Additional Information:

Description of NOAAPort Data Acquisition and Processing
Data format (metadata)
Station file | Station file format
30-day archive of daily NOAAPort files
Archive of annual NOAAPort files
Archive of individual station data available by clicking on station
Historical archive of Buoys and CMAN stations also available at NDBC Great Lakes