Current Conditions
Temp5.4 C
RH5 %
WindWSW 1 mph
RoadOpen (4x4)
Latest Summit Road Surface Observations

Date - TimeConditionGrip Surface TempAir Temp
January 16, 2019 - 0936 HSTDryGood 10.0 oC15.8 oC
Summit Road Surface Observations Trend and UKIRT Web Cam

Ice Detector Network

Haukea Pass - No Hazardous Conditions Reported
Upper Switch Back - No Hazardous Conditions Reported
Latest Lens Code

Not Soiled
Raw Summit Road Surface Observations

Date HST xvalue yvalue ratio airtmpc sfctmpc ave cond
index
cur cond
index
ave cond
code
cur cond
code
ave fric
index
cur fric
index
ave fric
code
cur fric
code
soiled
lens
grip
20190116 09:36:07 2015 1933 1.042 15.8 10.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:36:01 2017 1928 1.046 15.8 10.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:35:48 2009 1937 1.037 15.8 9.4 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:35:43 2006 1930 1.039 15.8 9.4 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:35:38 2006 1930 1.039 15.8 9.4 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:35:33 2007 1930 1.040 15.8 10.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:35:28 2012 1927 1.044 15.8 9.4 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:35:23 2013 1928 1.044 15.8 9.4 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:35:18 2005 1924 1.042 15.8 9.4 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:35:13 2009 1934 1.039 15.8 9.4 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:35:08 2007 1932 1.039 15.8 9.4 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:35:03 2007 1934 1.038 15.8 9.4 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:34:58 2002 1933 1.036 15.8 9.4 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:34:53 2006 1935 1.037 15.8 9.4 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190116 09:34:48 2005 1927 1.041 15.8 9.4 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
Disclaimer

The road surface condition detector cannot determine the road surface condition when there is fog. However, if the temperature is near freezing and fog is present, road ice is highly likely.

The road surface condition detector only looks at a one foot diameter area of asphalt located on the summit ridge adjacent to the United Kingdom Infra-Red Telescope. As Mauna Kea has many micro-climates, the detector may indicate the road is clear while hazardous conditions exist in other locations.