Current Conditions
Temp3.6 C
RH14 %
WindNNE 6 mph
RoadOpen (4x4)
Latest Summit Road Surface Observations

Date - TimeConditionGrip Surface TempAir Temp
January 22, 2019 - 1559 HSTDryGood 22.8 oC10.6 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
20190122 15:59:17 1955 1921 1.018 10.6 22.8 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:59:12 1956 1926 1.016 10.6 22.8 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:59:07 1956 1926 1.016 10.6 23.3 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:59:02 1957 1924 1.017 10.6 23.3 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:58:57 1954 1926 1.015 10.6 23.3 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:58:52 1955 1922 1.017 10.6 23.3 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:58:47 1954 1922 1.017 10.6 23.3 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:58:42 1952 1921 1.017 10.6 23.3 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:58:37 1952 1926 1.014 10.6 23.9 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:58:32 1954 1926 1.015 10.6 23.3 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:58:27 1955 1924 1.016 10.6 23.9 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:58:22 1954 1924 1.015 10.6 23.9 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:58:17 1954 1927 1.014 10.6 23.9 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:58:12 1954 1926 1.015 10.6 23.9 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20190122 15:58:07 1957 1924 1.017 10.6 23.9 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.