Current Conditions
Temp-3.6 C
RH94 %
WindSW 62 mph
RoadClosed
MAUNA KEA SUMMIT ROAD CONDITIONS
Road Status: Closed
Comments

Tuesday, February 20, 2018 - 09:25 p.m.

Aloha,

The road to the summit of Maunakea is closed at the Visitor Information Station at an elevation of 9,200 feet due to below freezing temperatures, high humidity, high winds, as well as the latest forecast which calls for more fog, ice and chance of convection and snow.

The National Weather Service has issued a High Wind Warning until 6:00 a.m. tomorrow morning for Big Island summits.

Rangers will continue to monitor road and weather conditions and this message will be updated as these conditions change.


Maunakea Rangers thank you for your patience and understanding.


This announcement is primarily used to inform the public about road closures.

There are fewer weather related road closures from April through November, and this message will not be updated during this time period unless necessary.

The rest of this website is regularly updated with the summit weather forecast and is a useful source of current Maunakea weather conditions.
cement is primarily used to inform the public about road closures.

There are fewer weather related road closures from April through November, and this message will not be updated during this time period unless necessary.

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



More Information: Mauna Kea weather varies widely. A calm sunny day may quickly become treacherous with hurricane force winds and blizzard conditions. Summit winds above 120 mph are not uncommon. Snowstorms have even occurred during the summer months.

When conditions are too dangerous, the Summit Access road is closed at the Visitor Information Station to ensure everyone's safety. The road is re-opened as soon as the weather and the roads are safe again.

Traffic delays and road closures on the summit access road may also occur due to the use and transport of heavy equipment, slow vehicle movements, deliveries, road maintenance, stalled or abandoned vehicles, hikers and bikers. Remember that dust, fog or snow can reduce visibility and slow traffic. Specific road closure criteria is listed below:

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

Mahalo for your understanding.


Public road conditions and snow report message: (808) 935-6268
Summit Weather via the CFHT/GEMINI WX Tower and SUBARU


Most Recent Previous 24 hours Options

Feb 21 2018, 03:12 HST Minimum Maximum UTC | HST
Temperature 25.5 oF 19.8 oF @ 08:32 26.8 oF @ 01:37 oC | K | F
Wind Chill 3.4 oF -3.6 oF @ 08:39 -1.5 oF @ 03:11 oC | K | F
Relative Humidity 94% 51% @ 21:16 98% @ 01:50
Pressure 613 mb 611 mb @ 04:00 613 mb @ 21:55
Wind speed 62 mph 46 mph @ 16:30 74 mph @ 00:48 mph | Kts | m/s
Wind direction SW

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

mm | inches
Fog Imminent


Random Web Cams

Gemini Telescope (Aimed South)

Keck1 (Aimed NNE)

SMA/MLO Camera (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, ice and high humidity
Chance for afternoon convection and snow
Moderate/strong winds
Current HNL NWS Mountain Bulletin(s) - (Latest Forecast)
Non-Precipitation Warning
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.
Maps