…Frequent rounds of heavy rain and severe weather expected across parts
of the central U.S. this weekend and into Monday…
…Mountain snow will spread from the Pacific Northwest into much of the
Intermountain West and Rockies over the next couple of days…
…Above average temperatures to build across the Midwest by early next
week…
An active autumn weather pattern is poised to continue impacting the
Nation this weekend into early next week, with heavy rain and severe
weather over the central U.S. and mountain snow throughout parts of the
West. A gradually lifting warm front spanning from the central Plains to
the Tennessee Valley this weekend will help funnel ample atmospheric
moisture content northward into much of the central/southern Plains and
mid-Mississippi Valley. Meanwhile, a developing area of low pressure in
the central High Plains and dryline will squeeze the thunderstorm focus
east into northern Texas and Oklahoma through Sunday, with the threat
shifting even more eastward by Monday to include parts of Missouri and
western Arkansas. The primary weather hazards associated with developing
storms will include heavy rainfall, large hail, damaging winds, and a few
tornadoes. The heavy rain and flash flooding threat is anticipated to be
greatest from central Oklahoma to southwest Missouri on Sunday as multiple
rounds of intense rainfall rates occur over similar regions. A Moderate
Risk (level 3/4) of Excessive Rainfall has been issued for this region.
Although severe to extreme drought conditions are in place, urban and
low-lying locations could experience rapid water rises and flooded
roadways. Residents and visitors are reminded to never underestimate the
power of water and have multiple ways to receive warnings.
The amplified upper level pattern will feature cooler temperatures and
precipiation throughout the Northwest, Intermountain West, and Rockies
over the next few days prior to a stronger storm system swinging inland
over the Pacific Northwest on Monday. Mountain snow will be common, with
Winter Weather Advisories in effect from the Oregon and Washington
Cascades to the higher terrain of Utah and Wyoming. However, the greatest
chances (>80%) for over 8 inches of snowfall in a 24-hour period is
forecast over the northern Cascades on Monday. Be sure to prepare for
winter driving conditions if traveling throughout these elevated mountain
ranges and stay tuned to the latest local weather forecast.
Warmer and mostly dry conditions will be felt east of the Mississippi
River through early next week, besides rain chances entering parts of the
Midwest and Great Lakes. A large high pressure system situated over the
Great Lakes today is forecast to slide eastward on Sunday and off the New
England coastline by Monday, ushering in warm southerly flow on the
western periphery. This will support widespread above average high
temperatures into the upper 60s and 70s from the central/southern Plains
to the Mid-Atlantic by Monday, with 80s along the Gulf Coast States. When
compared to early November climatology, the Midwest is expected to
experience temperatures well above average on Monday.
Snell
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
