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: Jul-14 15:15 UTC (DOY 195)
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 (36)
Data only
45001 45002 45004 45005 45006 45012 45013 45022 45023 45024 45025 45026 45027 45028 45029 45161 45163 45164 45165 45167 45168 45170 45174 45175 45176 45183 45186 45187 45194 45196 45197 45198 45199 45204 45208 45209

CMAN & U.S. Coast Guard Stations (86)
includes GLERL,NDBC,NWS,NOS,USCG Data only
AGCM4 ALXN6 APNM4 ASBO1 BARN6 BCTP1 BHRI3 BIGM4 BSBM4 BUFN6 CAVN6 CBLO1 CHII2 CLSM4 CMTI2 CNDO1 CYGM4 DBLN6 DTLM4 DULM5 FAIO1 FPTM4 FSTI2 FTGM4 GBWW3 GDMM5 GRCM4 GRMM4 GSLM4 GTLM4 HHLO1 HLNM4 HRBM4 KWNW3 LDTM4 LPNM4 LTRM4 MACM4 MBRM4 MCGM4 MCYI3 MKGM4 MLWW3 MNMM4 MRHO1 NABM4 NIAN6 NPDW3 NREP1 OBGN6 OKSI2 OLCN6 OSGN6 OWMO1 OWXO1 PILM4 PNGW3 PNLM4 PRIM4 PSTN6 PTIM4 PWAW3 RCKM4 RCRN6 ROAM4 RPRN6 SBIO1 SBLM4 SGNW3 SLVM5 SPTM4 SRLM4 STDM4 SVNM4 SWPM4 SXHW3 TAWM4 TBIM4 THLO1 THRO1 TRTP1 TWCO1 VRMO1 WCRP1 WHRI2 WNEM4

Ship Reports (21)
Data only
CFFO CFJ8305 KAO107 KBAG VDAS VDCY WAV4647 WDC8307 WDD2876 WDE3568 WDE3569 WDH7557 WDH7560 WDH8351 WDM2565 WTEA WXY6216 WYP8657 WYR4481 WZD2465 XJBH

Surface Airways Stations (23)
Data only
ANJ APN ART ASX BUF CKC CMX COQ CVX DKK DLH DYT ERY GNA MCD MGN P58 P59 PLN PZQ SJX SLH SUW

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