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Road Weather Network Data



This data set contains up to five minute resolution surface meteorological observations from road weather stations from 36 US states and 3 Canadian provinces for the PLOWS 2009-2010 field season. In the PLOWS 2009-2010 domain the states included are Illinois, Indiana, Iowa, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, Oklahoma, South Carolina, South Dakota, and Wisconsin. The data are in comma-delimited ASCII format and were made available by the FHWA Clarus Initiative who collected the data from the various state and province transportation departments. The data are in gzipped tar files by hour. Each hour contains files every twenty minutes containing all observations during that twenty minute period. These data have not been quality controlled.

Data access

  • ORDER data for delivery by FTP

Additional information

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Related projects
Spatial Type point
Frequency 20 minute
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2009-11-01 01:01:00
End datetime 2010-03-24 00:00:00

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 66.00, Minimum (South) Latitude: 29.00
Minimum (West) Longitude: -153.00, Maximum (East) Longitude: -67.00

Primary point of contact information

EOL Data Support <>

Additional contact information


Example citation following ESIP guidelines:

Federal Highway Administration (FHWA) Clarus. 2010. Road Weather Network Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 21 Oct 2021.

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Ancillary information

Metadata download

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