--Stormy weather haunts southeast Kansas/southwest Missouri through Tuesday--
--A lengthening intermission from summer continues for the
Northeast/Mid-Atlantic/Great Lakes states with cooler, fall-like
conditions invading the Dakotas Tuesday--
Lower than average heights/temperatures in the vicinity of an upper level trough continue the respite from summer across the Northeast and Mid-Atlantic states, with a dry airmass and associated low dewpoints bringing the promise of low temperatures dropping in the 40s and 50s across the region tonight into Monday morning, which could approach record lows for August 5 near the Nation's Capital.
A decidedly fall-looking pattern follows suit near the central U.S.- Canadian border with time as a deep cyclone deepens across
south-central Canada, sweeping a cold front into the Northern Plains.
Ahead of the system, the Storm Prediction Center indicates there is a
slight risk of severe thunderstorms over the next couple days from South Dakota into the Corn Belt. In the wake of the front, cooler conditions invade the Dakotas. North Dakota in particular could see locations struggling to rise to 70 degrees Tuesday.
At the southern edge of the Westerlies across the central Plains, the
polar front should remain quasi-stationary, pooling moisture which sets the stage for repeat performances of thunderstorm activity across southeast Kansas and southwest Missouri into Tuesday, prolonging their wet pattern to over a week in duration.
Most of the area's rainfall occurred in two periods during this past Monday night/Tuesday morning as well as Saturday morning into this morning. A stripe of 4-8 inches of rain has fallen so far across southeast Kansas/southwest Missouri per the National Weather Service's AHPS website -- with locally higher amounts indicated.
Under a persistent -- though weakening -- ridge of high pressure aloft,
Texas is expected to remain dry through the short range period,
worsening/expanding drought conditions across the state.
Across the Southwest/southern and central Rockies where upper-level disturbances eat away the ridge's northwestern flank, scattered afternoon/evening thunderstorms associated with the region's monsoon are expected to continue during the next couple days, helped along by an upper level low strengthening just west of California.