Current Conditions
Temp4.3 C
RH4 %
WindWSW 10 mph
RoadOpen (4x4)
Latest Summit Road Surface Observations

Date - TimeConditionGrip Surface TempAir Temp
November 13, 2018 - 2351 HSTDryGood 0.0 oC2.9 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
20181113 23:51:38 1838 1821 1.009 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:51:33 1836 1822 1.008 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:51:28 1836 1821 1.009 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:51:23 1836 1819 1.009 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:51:18 1840 1818 1.012 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:51:13 1838 1819 1.010 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:51:08 1838 1819 1.010 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:50:58 1836 1819 1.009 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:50:53 1838 1822 1.009 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:50:48 1836 1818 1.010 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:50:43 1836 1822 1.008 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:50:38 1836 1823 1.007 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:50:33 1835 1822 1.007 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:50:28 1839 1822 1.009 2.9 0.0 1 1 DRY DRY 2 2 0.80 0.80 0 GOOD
20181113 23:50:19 1841 1823 1.010 2.9 0.0 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.