Snow has returned to the southeastern corner of Wyoming thanks to a new system in Colorado. It is expected to hang around the region through Tuesday, with the bulk of precipitation activity expected today. Tomorrow afternoon precipitation will continue, although it will be more scattered in nature and for the most part it will be rain (except Laramie). The system will clear out heading into Wednesday, allowing temperatures to climb the rest of the week.
Rain showers continue for southeastern Wyoming as the new system is springing into action Sunday night. Rain looks to continue throughout much of the night until the temperatures hit a freezing point for the rain to transition into the snow. A Winter Storm Warning is in effect for parts of Laramie and Albany counties through Tuesday Afternoon with Winter Weather Advisories in place for Laramie, Converse, Platte, Albany & Carbon counties.
The final day of the week is quite pleasant as temperatures reach their peak, however that is simply thanks to a warm front ahead of the next system arriving over Mother's Day weekend. The cold front will push through Wyoming on Saturday, primarily bringing rain to the northern half of the state as temperatures drop thanks to a shift in wind direction from the south and west to the north. This region will be spared much activity on Mother's Day itself as a new low forms on Sunday, targeting the southeastern part of the state. Monday will bring the most precipitation to the state, with the wet spot set to be the southeastern corner of Wyoming once again.
The sunshine has made a grand return for the state of Wyoming today, but it will be short lived as the ridge in the jet stream gives way to a trough beginning late Friday. This will lead to the next storm system moving through the state over the weekend, dropping temperatures from the 70s/80s on Friday to the 30s/40s on Monday for highs. Outdoor plans for Mother's Day should be scheduled in the morning to avoid complications with rain.
The last of the showers and storms are making their way east in parts of Wyoming this afternoon as the system that has brought the rain and snow moves too far east to affect the state. Sunshine will return on Thursday before more cloud cover returns on Friday ahead of the next system over Mother's Day Weekend.
Scattered showers and storms are possible through the evening hours of Wednesday, with most of them taking place Tuesday evening and Wednesday morning and afternoon around lunchtime. Sunshine and spring warmth should return on Thursday before more clouds build in on Friday ahead of the weekend.
A weak low pressure system has brought more precipitation to Wyoming to kick off the new week, with the northern half of the state mainly seeing that activity overnight and the southeastern corner of the state expected to see a cold rain/wet snow throughout the afternoon hours of Monday. More showers and thunderstorms will be possible for the first half of the week before sunshine and warmth take over again on Thursday and Friday.
Rain has picked back up in SE Wyoming and as the temperatures continue to drop around the state with falling precipitation, can expect that wintry mix to develop overnight creating some treacherous road conditions overnight into early Monday morning for areas impacted by this system. Some areas have the potential of seeing isolated thunderstorms and periodic heavy rainfall throughout the overnight hours and Monday morning.
Sunday: rain looks to get started widespread in the late morning and early afternoon. Starting on a light-scale, then becoming more organized in the afternoon. The Cold Front moving in will cooldown temperatures across the state 50s being the highs for much of the state. The system has substantial moisture as well which is fantastic for our drought conditions. Rain looks to increase in fall rate throughout Sunday afternoon mainly rain showers with an increased chance of thunderstorms in the late afternoon and evening hours for much of SE Wyoming.
A Low Pressure System from the NW corner of the U.S. will be bringing favorable amounts of moisture and cooler temperatures once it descends upon the state mainly Sunday morning. Anticipating widespread rain showers in Wyoming and some areas have a good chance of seeing thunderstorms as well especially in the SE areas of Wyoming.
April ends on a warm and sunny note, but rain chances will immediately begin to climb as the calendar shifts from April to May on Saturday. There are going to be rain chances every day from Saturday through Wednesday, with all but Monday likely warm enough to support some rumbles of thunder.
The warmest day of April still awaits for the final day of the month thanks to a prominent ridge and high pressure bringing pleasant conditions to Wyoming. Cloud cover will fill in a bit on Friday but even more so on Saturday as the ridge breaks down and the trough moves in, bringing another cold front, low pressure system, and opportunity for rain ( or snow in higher elevations) for the first weekend of May.
April will end on a warm note as a ridging pattern takes over the western US for the next few days, allowing high pressure and benign conditions to take over in the state. Things will cool off again over the weekend and early next week as the ridging pattern gives way to a trough, allowing the next storm system to move in.
Temperatures have dropped as the next system has arrived, however spring warmth has enough grip on the state to where the only places seeing snow out of this event are the higher elevations; everywhere else is seeing rain with the heaviest amounts expected to fall over Southeast Wyoming and Northern Colorado.
The next weather system to impact Wyoming arrives tonight and will bring a good amount of rain to much of the state as it hangs around through Tuesday night. A few higher elevations will still see snow, and during the overnight hours some locations could see the rain shift into snow briefly as temperatures drop into the low and mid 30s.
Spring temperatures are expected to last into the start of the new week under mostly cloudy skies before the next system rolls in Monday night. That system will bring rain showers to much of the state that could shift into snow showers during the overnight hours, especially for higher elevations. There will be a lot of wind heading into the start of the new week as well.
The weekend will rebound with 50′s and 60′s across Wyoming. The weekend looks to be breezy, however, and Casper will most likely see the brunt of the winds through Sunday, with winds ramping up potentially as high as 20+ miles per hour.
Clouds will hang over the I-80 corridor throughout the day today with an opportunity for snow showers late thanks to a weak system over Colorado. The rest of the state should experience mostly sunny skies and temperatures ranging from the lower to the upper 40s. Sunshine looks to return to most of Wyoming on Thursday allowing temperatures to rise to over 50 degrees for most of the state.
We kick off the third full week of April with the coldest conditions we have seen in awhile; afternoon temperatures in the mid 20s and lows tonight in the lower teens and some in the single digits. Naturally accompanying the cooldown is a wave of snow, which could bring close to half a foot of accumulations to some areas in Northern and Central Wyoming.
A potent Low pressure system is slowly moving its way into Wyoming from the north. Already bringing rain showers and mixed precipitation to many ares in Northern Wyoming. Winter Weather Advisories and Winter Storm Warnings are in place through much of Monday into Monday night with a Winter Storm Watch in place for parts of Albany county.
Temperatures will warm back up a bit this weekend as the low pressure system moves out and sunshine makes a return. The majority of the snow from this week will melt in most locations, and Sunday will see the warmest conditions we have had since last weekend. The next round of snow looks to move in from the north Sunday night through Monday.
According to the National Weather Service in Riverton, totals as of this morning in Riverton were between 9 inches and close to a foot. Lander snowfall totals were at about 11 inches. It is still snowing in Riverton, so accumulation totals could change.
The final round of snow is arriving today and for most locations will bring the most accumulations we have seen this week. Most places will see either 6" or less with this final round added to whatever has come through so far this week, and sunshine should return Saturday afternoon.
The rest of the week will see widespread snow that will bring most of its accumulation Thursday Night into Friday. It will be more scattered in nature through today and tonight with a couple of organized lines, but once the low pressure system begins to deepen on the eastern side of the Rockies the heaviest snow will begin, especially for Southeast Wyoming and the Nebraska Panhandle.
The first organized wave of snow is expected to push into Southern Wyoming from the south tonight, bringing some slick conditions to I-80 and some accumulations all along the I-80 corridor heading into Wednesday. This will turn into showers during the afternoon tomorrow before a second wave pushes further north tomorrow night.
The wind train is over for much of Wyoming as the new week kicks off, but now we will be stuck with cooler temperatures and snow chances are on the rise, especially late in the week as the jet stream dips and pulls in more arctic air.