It’s been pretty warm across the nation since the end of last week, throughout the Memorial Day weekend and into the early half of this week.

After another warm but predominantly ‘seasonable’ day, here’s the current temps across the US this evening.

Note the cool in the Pacific Northwest and especially the Northeast where it’s been warm with 80s day after day. The sharp 20-30 degree cool down is courtesy of a backdoor cold front sweeping in off the Atlantic.

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Projected temperatures tomorrow show nicely the twin troughs hanging over both PNW and Northeast with the ridge in between.

We have of course witnessed MAJOR flooding over parts of Texas including the Houston area as well as into Louisiana. All thanks to that slow moving upper low which initially pushed into Southern California back during the Memorial Day weekend. Modelling  did a great job at seeing the major rainfall coming. Houston and other cities in SE Texas into Louisiana have received between 3-6, locally 8 inches within 24 hours, causing many areas to sustain major flooding.

Here’s the current upper setup.

Vigorous trough dropping into the PNW means cool, unsettled for Seattle, Portland into the N Rockies. This will also increase the marine layer for Southern California and bring the recent rise in temps back down late week into the upcoming weekend. We can also see that upper low which has brought all the rains to the Southern Plains.

By 72 hrs we have the trough back into the Northeast proper while the PNW trough/system now dives down the West Coast. The marine layer will thicken up and struggle to burn back offshore during the afternoons again along the CA coast. It brightens quickly once you get inland but highs will only get into the 80s and 90s.

Upper low over TX/LA weakens with heights building quickly, allowing things to dry out and heat up.

Plenty of warmth over the N Plains into the Great Lakes.

Focus of heaviest rains next 7 days shifts north from Texas up into the N Plains. Severe weather will also be focused here too as a trough begins to sink south.

Into next week and the trough shaves off heights throughout the West where temps go back to normal or slightly below but the warmth returns to the Northeast.

Surface chart shows heaviest rains/storms stretched out across the North 12z Mon.

Next week sees a west-east upper pattern with demarcation zone between the trough in the North and West verses the ridge stretched out between Texas and Northeast. Looking largely dry with a cap over Texas which should eventually spread east into AL and GA.

Check out the QPF rainfall through the next 7 days.

Note the 5.3″ bulls eye near New Orleans, that’s the current system that’s still bringing the flash flooding to Louisiana.

7-day mean 500mb height anomalies next 7 days.

7-day mean 2-metre temps/anomalies.

Will have video and more tomorrow… Have a great night!

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Tags: louisiana flooding, texas flooding