11/21 – Rob’s “Warmer” Tuesday Morning Forecast

The most impactful weather through the forecast period will be occurring over the next 24 hours. A split flow trough pattern is developing across the center of the country with the sharper portion diving south from Canada into the upper Mississippi Valley. Amplification of both troughs will occur today which will send a cold front across the CWA tonight. A slight shift in the timing of this boundary suggested by models means that previous thinking that rain will be limited to coastal waters simply won`t be the case. Today will bring a 20% for showers to most of the viewing area. This FROPA will take the little warming that will occur on today and bring temps back down to a good 5 to 10 degrees below normal for Wed-Fri.

The CWA will generally remain under troughing through the rest of this week and through the weekend. This will be the case due to the mid-week trough`s lack of progressiveness and a deep trough diving out of Canada into the eastern 1/4 of the CONUS this weekend. Another frontal boundary will swing through Saturday evening, reinforcing cooler temps. No rain expected with this boundary.

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