Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 330 AM EDT Tue Jun 8 2021 Valid 12Z Tue Jun 8 2021 - 12Z Thu Jun 10 2021 ...Persistent heat from the Northern Plains to the East Coast... ...Continued wet pattern for the south-central states... The overall weather pattern will be rather slow to change through the middle of the week across most of the nation. A large upper level ridge anchored over the Plains will keep a frontal boundary from making much eastern progress across the Intermountain West and the Rockies. Meanwhile, a cold front will make slow progress southward across the Great Lakes and Northeast U.S. through early Thursday, bringing some relief to the recent hot weather for these areas by the end of the week. It will remain hot and humid with July-like conditions across the remainder of the central and eastern U.S. with highs running 5 to 15+ degrees above seasonal averages in many cases, with the greatest anomalies across the northern Plains and portions of the Northeast through Wednesday. It will be pleasantly cool for this time of year across the West Coast region since an upper level trough will be situated across the eastern Pacific. Additional rounds of heavy rainfall are in the forecast across portions of the central U.S., particularly from southern Arkansas to western Tennessee where 3 to locally 6 inches of rain will be possible over the next two days. This will increase the flash flood threat where training of thunderstorm cells develops. Numerous showers and storms are also expected across the Ohio Valley and extending eastward across southern New England, where localized 2 inch rainfall totals may become realized. Strong to severe thunderstorms will be possible across portions of the western High Plains on Tuesday per the latest convective outlook from the Storm Prediction Center, with a Slight Risk from western Nebraska to eastern Montana. There will also be elevated fire weather concerns across much of the Intermountain West, owing to a favorable combination of gusty winds and very low humidity levels, along with ongoing severe drought. Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php