January 15, 2018

MOUNTAIN WEATHER FORECAST

Time and Day:  0700 Monday MLK day. 

The Snapshot:  Mostly dry with increasing clouds today.  Light mixed rain and snow is expected tonight with intermittent showers tomorrow.  Snow and cooler temperatures show up toward the end of the week.

The Science

Current Observations: Foggy this morning with temperatures in the mid 30’s.   The temperature profile is still inverted with slightly cooler air to the east. The barometer has dropped a few notches to 1020mb’s, the winds are out of the east 5-10mph.  Satellite imagery has a mid-level stratus layer moving into the region.   

The Forecast:  The falling barometer is an indication of the systems beginning to track toward the region.  Light mixed rain and snow is expected to enter the mountains late tonight or early tomorrow morning.  Weak east flow will hopefully hold temperatures near freezing with mixed precipitation to start the day.  

The Long Range:  Active weather will continue with gradually cooling temperatures through the upcoming weekend.     

24hr Precipitation ending at 4 a.m:
Today 24hr water: .25 snow:1-2
Tomorrow’s 24hr water: .25 snow:1-2

Trend and Timing:
Mixed rain and snow show up after midnight tonight with intermittent showers through the day tomorrow.


24hr temperature ending at 4 a.m: 
Low: 30    High: 36
Freezing level: 5000’ – 4000’

Trend and Timing:   
Freezing levels will hover between 4500’ and 5000’ with the aid of east flow today.  Freezing level then drop to 4000’ with the passing of the front tomorrow morning.

 
24hr Winds (mph) ending at 4 a.m:
Base:  5-10 E gusty
Ridge Top: 5-15 gusty

Trend and Timing:
East/downslope winds will strengthen today.



jM

No comments:

0800 Start Fri Jan 23rd, no ABS