After last night’s one-inch-plus rains and pockets of small hail for some of us, today’s sunshine and blue skies were an extra special treat! Sadly, the skies will start to cloud back over tonight.
Today’s dome of high pressure will skate off to the east, with high-level clouds spreading in from the west tonight and staying with us all day Wednesday. Temps will dip into the upper 30°s for many of us by Wednesday morning thanks to the “dry” air mass at lower levels. We’ll stay dry through the day but the clouds will keep Wednesday afternoon a little cooler, with highs struggling to make the 60°s for most neighborhoods along and north of the east-west interstate corridor.
A storm system currently along the California coast will cross the Rockies and spin-up a surface low over the Plains tomorrow. As that system continues tracking towards the mid and upper Mississippi Valley, it will pull in Gulf and Pacific moisture. A cold front associated with this system arrives in the WAFB viewing area late Thursday or early Friday -- the NWS Storm Prediction Center (SPC) has our entire area under a “Slight Risk” for severe weather.
Although the front is expected to continue to move to our east during the day on Friday, the guidance indicates that it will slow and eventually stall over the coastal waters. That means our weather stays unsettled into Saturday, possibly even into Sunday. At the same time, a storm system over the Pacific Northwest on Saturday will move into the Central Plains by Sunday, delivering the next cold front to the lower Mississippi Valley late Monday.
After a run of wet weather, the weather should clear on Tuesday -- with a little luck!
The latest NWS Hydrometeorological Prediction Center rain projections are indicating that we could see 2” to 4” of rain over the coming 7 days. If that pans out, number-crunching shows that this will push Baton Rouge’s winter (Dec-Feb) rainfall to 30” or more, making it the “wettest” winter ever for the record books (since 1888)!
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