In Brief:
Warm weather again, a mid-week storm on tap.
Saturday Update:
We received a bit of snow and very little rain from our week-end storm (Figure 1 update). Longmont saw about 1/2 inch of snow. Boulder picked up around an inch.
We rocket to the upper 60's for the first part of the week until the next storm system approaches (Figure 2 update). We cool only to the lower 40's for highs with rain and a couple of inches of snow possible Thursday. This is still fairly far out and temperatures are, again, marginal.
End Saturday update.
Forecast Discussion:
We reach temperatures near 60F on Wednesday before a cold front arrives late Wednesday night/Thursday morning (Figure 1). Rain chances slowly rise on Thursday becoming a good chance of showers by late afternoon changing to snow overnight (green and blue boxes).
This storm is powered by an approaching trough that will sweep by quickly (Figure 2). By Thursday night into Friday morning, there are snow chances across much of the state (Figure 3).
I'll return tomorrow for a snowfall roundup if things vary much from the forecast below, but the GFS shows a strong gradient of almost no snow along I-25 and eastward and healthy totals in thee nearby foothills (Figure 4). Much of the precipitation that falls along the interstate will come down earlier as rain (Figure 5) with 0.25-0.75 inch of liquid in Longomont.
There IS some uncertainty in the forecast still. The NAM has much less snow around I-25 and into the Foothills. The big snow winners are out in the NE corner of the state and in the OK/TX panhandles.
More later!
The Longer Range Forecast:
We pop back to the 50's then 60's by the weekend and into next week and remain dry until another Wednesday/Thursday storm arrives. At least we are getting some water back into the region!
