We had some clouds and mild temperatures Saturday – today will be very much the same. A real change is coming with another fast moving clipper roaring down on northwest flow (see yesterday’s discussion). Figure 1 shows the mild temperatures Sunday midday. After midnight, the first push of cold air is heading in. We should have Monday’s warmest temperatures around here (Figure 2) before dawn. Much colder air coming in Monday morning will drop temperatures in the lower 30’sF down to around 20F by the afternoon drive time. Take more coat with you than you need in the morning! Figure 3 shows the Tuesday AM upper teen temperatures for Longmont.
What about snow? A shallow but moist up-slope flow will begin after midnight tonight through much of Monday. We should see periods of light snow showers now and then.
Figure 4 is the GFS’s take – it gives us nothing to 1″ (sorry, the pink dot is missing this time!).
Figure 5 is the NAM’s take – We get around 1″. The two models are consistent. Consistently low on snow.
My call is that Longmont should see a coating to locally 2″ if things come together for some neighborhoods.
The longer range forecast:
We slowly warm and dry out again beyond this storm. Our next small-ish storm seems to be slated for Saturday. Have a great Martin Luther King day today all!