Mark Heyka (@MarkHeyka) header
Mark Heyka (@MarkHeyka) profile picture

Retired Chief Meteorologist in Montana

Belleville, KS-Missoula, MT
Joined May 2009
Photo by Mark Heyka (@MarkHeyka)Photo by Mark Heyka (@MarkHeyka)Photo by Mark Heyka (@MarkHeyka)Photo by Mark Heyka (@MarkHeyka)Photo by Mark Heyka (@MarkHeyka)Photo by Mark Heyka (@MarkHeyka)Photo by Mark Heyka (@MarkHeyka)Photo by Mark Heyka (@MarkHeyka)Photo by Mark Heyka (@MarkHeyka)Photo by Mark Heyka (@MarkHeyka)
Patchy fog will be scattered throughout far Southwest MT from tonight until late morning tomorrow. Roads may be slick in freezing fog especially on bridges.
1
4
374
It will be windy Friday into Saturday across North-central Montana. There will be difficult travel conditions along US Highway 89 north of Great Falls and US Highway 2 in Glacier County. If spending time outdoors on Friday and Saturday be prepared for strong winds. #mtwx
1
7
429
Mark Heyka retweeted
Rain showers and isolated storms move through this morning before stronger storms develop in central Kansas this afternoon. Those storms could produce damaging winds and a few tornadoes as they move northeast. Storms weaken in far eastern Kansas late this evening. #kswx
3
1
16
2,514
Lingering mountain snow this morning will be followed by general mild and dry conditions for much of the upcoming workweek. Breezy to windy conditions look to move in heading towards the weekend. #MTwx
1
5
420
A Pacific weather system will bring mountain snow and lower elevation rain/snow today through Monday morning. Plan for cold wet outdoor recreation and variable road conditions, especially over the higher terrain of the Gallatin/Madison Ranges tonight/Monday morning. #MTwx
1
1
5
489
A Pacific weather system will bring mountain snow and lower elevation rain and snow Sunday through Monday morning. Plan for reduced visibility and variable road conditions, especially over and near the passes Sunday night/Monday morning. #MTwx
1
1
8
521
A Pacific weather system will bring mountain snow and lower elevation rain, snow, and even some mixed precipitation Saturday night through Monday morning. Plan for reduced visibility and variable road conditions, especially over and near passes. #MTwx
1
1
1
3
495
Areas of dense fog has developed this morning across parts of North-Central MT including the I-15 corridor. Dense fog is expected to continue through at least the rest of the morning, with chances of fog again Friday morning. Photos below are from the MDT's webcams. #MTwx
1
5
416
At 130 AM, freezing fog is occurring over portions of North Central MT. The fog is coating wind shields with frost, along with reducing visibility. Allow some extra travel time this morning. #mtwx
1
3
421
Mark Heyka retweeted
❄️ Good morning! If you're traveling on US-12 over Lolo Pass today (10/28), make sure you are prepared for winter driving. As you can see, the roads are completely snow-covered. 🏔️🚙 #mtwx #idwx
3
27
1,155
Mark Heyka retweeted
Unsettled weather returns this week to Western MT & North Central ID! 🌧️❄️ Valley rain and lowering snow levels (down to 4,000 ft by Friday) will bring slick conditions to area mountain passes. Prepare for winter driving overnight & early mornings. #MTwx #IDwx
1
2
1
10
945
Temperatures will fall on Friday as the cold front sweeps through the region. #mtwx
1
7
568
Gusty northwesterly winds continue and rain will change to snow at most locations by this evening. Watch for rapidly changing conditions including slippery roads and reduced visibility from snow, especially over mountain passes. #MTwx
1
8
615
Cold rain will transition to snow in the mountains over Friday afternoon. Overnight temperatures will be in the 10s/20s beginning Friday night.
2
1
5
536
Mark Heyka retweeted
Pleasant weather is expected to continue through the end of the week and into the weekend. Rain chances are expected to increase late Sunday and into Monday. #kswx
1
5
14
1,246
Mark Heyka retweeted
Widespread valley rain & mountain snow expected Thu night - Fri for W MT & NC ID! 🌧️ Valleys: 0.10"-0.50"+ rain. Watch for hydroplaning. ❄️ Mountains: Snow levels drop to 5-6k ft by Fri evening. 1-4" snow above 6k ft may cause slick conditions on high passes. #MTwx #IDwx
3
17
824
Mark Heyka retweeted
A gradual warm-up is on the way for this week. Temperatures look to be near average for the next couple of days, but we eventually will return to the low 80s while staying dry. #kswx
2
14
1,331
West winds will increase through the morning hours on Saturday and become strong through the afternoon and evening hours. Wind gusts approaching 75 mph are possible over this timeframe, most notably for areas along and west of the US Hwy 89 corridor. #mtwx
1
9
520
Strong winds are expected on Saturday over portions of North Central MT. Wind gusts could reach 85 mph at times along the Rocky Mountain Front, and up to 70 mph along the I-15 corridor from Shelby to Conrad. #mtwx
1
6
649
Strong west/southwest winds are expected through most of Saturday across Central Montana and along the north-south oriented valleys of Southwest Montana. The strongest winds are expected along the Rocky Mountain Front where gusts up to 85 mph are possible. #MTwx
2
9
483