Colorado

May 9, 2014 3:01 PM by John Dissauer

Mother's Day Snow Storm

Still need to get mom a gift for Mother's Day? Well, Mother Nature may be able to help you get something useful. If you're in eastern Colorado you could get her a shovel. She may need it Sunday and Monday.

An area of low pressure is moving through the Gulf of Alaska off the northwest coast of the United States. (See the satellite loop below taken Friday morning.)

Computer models project the low/energy will move southeast in to the Rocky Mountains Saturday. Once in the mountains, a surface low is expected to develop over southeast Colorado Saturday afternoon. As the low moves east, cold air will begin to filter in from the north/northwest.

Almost all of the data suggests moisture will begin to fall in the central mountains of Colorado Saturday. The moisture is expected to move east and southeast over eastern Colorado Sunday afternoon. Both medium-range computer models, the GFS and European forecast agency's model, suggest that moisture will remain in place over eastern Colorado through mid-day Monday.

Overall, the computer models are very bullish with the amount of moisture falling from this system. Here is a look at a 27-computer model average of how much moisture will fall for locations in southeast Colorado through 6pm Monday MT.

- Colorado Springs: 0.70"
- Monument Hill: 1.03"
- La Junta: 0.48"
- Lamar: 0.37"
- Pueblo: 0.61"

Initially, moisture will likely fall as rain but in some locations it will change over to snow. Places that get snow, could got a lot of snow. Here is a look at the 27-computer model average of moisture that computer models project will fall as all snow through 6pm Monday MT.

- Colorado Springs: 0.52"
- Monument Hill: 0.76"
- La Junta: 0.08"
- Lamar: 0.01"
- Pueblo: 0.13"

As you can see, data is suggesting higher amounts across El Paso County and north. This also likely suggests higher snow amounts in the higher elevations west of I-25 (Teller/Fremont counties).

Keep in mind this is still a couple days away from happening. Computer models will get a better handle on the storm, the amount of moisture and the timing once it gets better sampling over the land.

In the meantime, the National Weather Service in Pueblo has issued a Winter Storm Watch for areas west of I-25 Saturday night through Monday morning. I'll be in throughout the weekend and will have further updates on KOAA-TV and Twitter. - Meteorologist John Dissauer

SNOW WEATHER TIDBIT

Interesting weather tidbit... The record snow for Colorado Springs on May 11 is 1.9" (1966). The record is 3.0" (1912) for May 12. Think there is a chance we can make a run at these numbers Sunday and possibly Monday.

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