Meteorology is not an exact science...

This from the NWS crew in Pueblo.

"A VERY TRICKY FORECAST WITH MUCH DEPENDING ON WHICH WAY
THE UPPER LOW WOBBLES AND EJECTS ACROSS THE AREA."

Are we going to get a lot or a little snow?  We shall see.......

Blown forecasts

The National Weather Service forecast for Boulder yesterday called for a high of 60. Actual high: 49.

The forecast for today called for a 10% chance of showers. I wonder what the chance of rain all day was? We got nearly .25 inch.......and it rained for much of the day.

Better link to NCAR website

http://rap.ucar.edu/weather/

This is a fantastic website that I highly recommend.

Chilly!

Like many of you, I expected that this cold front would bring us some rain. It did snow a little in the mountains, but it turned out that the down sloping winds negated the precipitation that was forecast. It still cooled off a lot!

Hot!

High pressure+downsloping winds=85 degrees and 12% relative humidity in Boulder! Quite the shift from the beginning of the week. It's great weather for drying clothes....

Happy Equinox! The exact moment is actually this afternoon.

Thunder-grapuel on Saturday

I was up at Beaver Reservior (just west of the Peak to Peak Highway) on Saturday afternoon. Not only did it snow (thanks to a passing cold front), but at one point we heard quite a bit of thunder and little styrofoam-like pellets started to come down--sort of a cross between snow and hail. Those little pellets are called graupel and they are much less common than snow or hail. More info here on how it forms. Very interesting stuff.