Current Conditions
Temp8.2 C
RH56 %
WindN 21 mph
Road Status: Closed

Monday, October 20, 2014 - 02:52 p.m.

Aloha Visitors,

The road to the summit of Maunakea remains CLOSED above the Visitor Information Station at the 9,000' level. The steep, unpaved portion of the summit road above the VIS is closed due to extensive erosion and damage from storm runoff caused by Hurricane Ana. Road repairs continue to occur, but due to the magnitude of damage progress is slow. Hopefully the road will be open by Tuesday evening, however, we do not know exactly when the road will open. Please note that this message will be updated as soon as conditions change. Thank you for your patience and understanding.

This announcement is primarily used to inform the public about road closures. Road closures typically occur during winter months due to ice or snow on the road and occasionally for high wind situations. Specific road closure criteria are listed below:

1. Any ice or snow on the road.
2. Winds greater than 55 mph for more than 1 hour and/or gusts greater than 65mph.
3. Visibility less than 50 feet.
4. Any emergent condition that makes the road unsafe for travel.

There are very few road closures from April 1 through November 30, and this message will not be updated during this time period unless unusual circumstances develop.

The rest of this website is regularly updated with the summit weather forecast and is a useful source of current Mauna Kea weather conditions.

Public road conditions and snow report message: (808) 935-6268
Summit Road Surface Observations

Date - TimeConditionGrip Surface Temperature
Oct 21, 2014 - 1408 HSTDryGood 28.3 oC
The conditions above represent a 1 foot diameter section of road on the summit and you should not assume conditions on the rest of the road are the same. For more details, see Summit Road Surface Observations.
Summit Weather via the CFHT/GEMINI WX Tower and SUBARU

Most Recent Previous 24 hours Options

Oct 21 2014, 14:08 HST Minimum Maximum UTC | HST
Temperature 8.2 oC 3.5 oC @ 21:24 9.2 oC @ 12:48 oC | K | F
Wind Chill 4.0 oC 3.2 oC @ 16:13 5.5 oC @ 13:58 oC | K | F
Relative Humidity 56% 12% @ 02:46 53% @ 13:28
Pressure 619 mb 619 mb @ 13:50 621 mb @ 22:33
Wind speed 9 m/s 0 m/s @ 13:40 11 m/s @ 12:38 mph | Kts | m/s
Wind direction North

dir | deg
Precipitation (as of 8 am) 0.00 mm

mm | inches
Fog Possibility

Random Web Cams

MLO Image (Aimed SW)

View of Mauna Kea from MLO (Aimed North)

IRTF2 (Aimed South)

Check the MKWC Current Obs page for additional weather observations and the MKWC Web Cams page for more mountain cams.
Latest Mountain Warnings and Forecasts

Current MKWC Warning(s) - (Latest Forecast)
Fog/high humidity
Chance for rain and convection
Current HNL NWS Mountain Bulletin(s) - (Latest Forecast)
Additional Information

Visiting Mauna Kea Observatories Information
Road is always closed the morning after a snowfall.
Road is always closed while snow removal equipment is in operation.
Road is closed when the pavement has ice/snow.
Snow removal equipment can only remove snow. Thermal heating is needed to remove the final layer of ice that usually forms under the snow.
Other information for visitors to Mauna Kea, including safety, summit tours, and public star-gazing.