Wednesday, May 4, 2016
Thursday will likely be the warmest day of the season so far, though there will be a threat of afternoon and evening storms, possibly with thunder, as south or southwesterly winds bring some moisture over Colorado ahead of yet another large Pacific storm.
This new storm is in the process of splitting as it approaches the West Coast, with the southern portion forming a large closed low cutoff from the jet stream while the northern branch speeds eastward north of the Canadian border. Energy ejected over our area from the cutoff low to our southwest may bring light showers to our area as soon as noon on Friday, but the showers will likely become strong by the afternoon and be accompanied by thunder as a cool front from the northern stream adds additional lift and instability to the atmosphere.
There is still uncertainty in the track of the storm, but a slot of dry air is forecast to be over the area by around Saturday morning bringing some sun to start the day. However, showers will once again reform, possibly becoming strong with thunder in the afternoon, as more energy is ejected from the southwest storm.
We may have some sun for Mother’s Day morning before before more showers reform in the unsettled weather for the afternoon. However, the showers should be lighter than the previous couple of days as we will be in the eye of the storm by the evening.
By Monday, the storm will be east of us, though we will still be susceptible to showers during the day as energy rotates around the backside of the low.
A colder storm from the Pacific Northwest is forecast to quickly follow this storm, keeping the active weather going for Tuesday and Wednesday, with snow a possibility down to 7000′.