CHIEF METEOROLOGIST ERIC BRILL – EVENING UPDATE
Monday, November 18th, 2019
Two cold fronts are going to move through Southern Idaho over the next week and bring some pretty big changes to our temperatures.
The first cold front will sweep through the area on Tuesday. That will bring temperatures back below average for Wednesday into the weekend, as middle and lower 40s are on the horizon for afternoon highs. While this is quite a bit cooler than what we’ve seen over the past few days (and weeks, for that matter), these temperatures really won’t be that far below average. With that said, the second cold front that is going to come through the region (that is expected during the Sunday/Monday) time frame, will drop temperatures into the 30s for afternoon highs. That is also a good amount of time away, and things can/will change between now-and-then.
Alright, let’s go back to that first cold front.
This cold front is moving from the Gulf of Alaska/Pacific Northwest. It doesn’t have a bunch of moisture to really work with, but will instead be a difference maker when it comes to temperatures more than anything else. Temperatures were already discusses above this, so as far as precipitation goes, there is a chance of showers for all of Southern Idaho on Tuesday. Generally, these will be in the form of rain as oppose to that of snow, but higher elevations will likely have some snow mixed in. The snow/rain line looks like it will be somewhere between 6,000 and 6,500 feet above sea level. No significant accumulations are expected, as the ground has been able to warm up a little bit over the past few weeks.
For early next week’s cold front, it appears that temperatures will be even colder, and the chances of rain and snow will be higher. Model data typically has a tendency to overplay or overvalue things that are that far out, but there has been some consistency about this specific event happening. It’s impossible to really know who will or won’t get snow or rain, but it’s a good idea to keep this event in mind with that being the week leading up to Thanksgiving. Temperatures look to struggle to reach even 40° for everyone, so it will be colder.
Enjoy the little bit of warmth that is still left! Colder temperatures are on the way.
MONDAY NIGHT: MAGIC VALLEY: Mostly cloudy skies and warm. Low: 40. Winds: Southwest 5-10 mph.
WOOD RIVER VALLEY: Mostly cloudy skies and warm. Low: 31. Winds: Northeast 3-8 mph.
TUESDAY: MAGIC VALLEY: Mostly cloudy skies with a chance of rain showers. Some snow possible above 7,000 feet. High: 53. Winds: West 5-15 mph.
WOOD RIVER VALLEY: Mostly cloudy skies with a chance of generally rain showers. Some snow could be mixed in above 6,500 feet. High: 47. Winds: West 5-15 mph.
TUESDAY NIGHT: MAGIC VALLEY: Mostly cloudy skies. Low: 30. Winds: West 5-10 mph.
WOOD RIVER VALLEY: Mostly cloudy skies. Low: 24. Winds: Northwest 5-10 mph.
WEDNESDAY: MAGIC VALLEY: Mostly cloudy skies with isolated showers possible. Quite a bit cooler High: 42. Low: 23.
WOOD RIVER VALLEY: Mostly cloudy skies with isolated showers possible. Quite a bit cooler. High: 44. Low: 20.
THURSDAY: MAGIC VALLEY: Decreasing clouds through the day. High: 40. Low: 20.
WOOD RIVER VALLEY: Increasing sunshine as the day continues along. High: 43. Low: 19.
FRIDAY: MAGIC VALLEY: Mostly sunny skies. High: 44. Low: 21.
WOOD RIVER VALLEY: Mostly sunny skies. High: 45. Low: 19.
SATURDAY: MAGIC VALLEY: Partly cloudy skies. High: 44. Low: 23.
WOOD RIVER VALLEY: Partly cloudy skies. High: 45. Low: 21.
SUNDAY: MAGIC VALLEY: Partly cloudy skies with a slight chance of PM rain and snow showers. High: 45. Low: 21.
WOOD RIVER VALLEY: Partly cloudy skeis. High: 44. Low: 23.
MONDAY: MAGIC VALLEY: Partly cloudy skies with isolated rain and snow showers. Breezy and colder. High: 38.
WOOD RIVER VALLEY: Partly cloudy skies with isolated rain and snow showers possible. Colder and breezy. High: 36.