Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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232 FXUS63 KOAX 222027 AFDOAX Area Forecast Discussion National Weather Service Omaha/Valley NE 327 PM CDT Thu Mar 22 2018 .SHORT TERM...
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(Tonight through Sunday) Issued at 321 PM CDT Thu Mar 22 2018 A few showers, fostered by low level warm advection, finally managed to shuffle out of the CWA early this afternoon. Southerly winds at the surface allowed temperatures to rise into the upper 50s and mid 60s across the area. Meanwhile, a prominent upper level ridge continued to build eastward into the central plains. A shortwave will move into the region Friday, breaking down the upper ridge. As this occurs, an area of low pressure at the surface will deepen as it moves out of the Rockies and into eastern KS/western MO by Saturday morning. A surge of moisture will accompany this system, bringing a chance for light precipitation to the area Friday through Saturday morning. Freezing temperatures should remain well to the northeast, leaving us with rain showers. A few rumbles of thunder will be possible Friday evening through Friday night, given the presence of weak instability and moderate mid-level lapse rates. Expect precipitation chances to diminish late Saturday morning as the surface low works it`s way ESE through Missouri. .LONG TERM...(Sunday night through Thursday) Issued at 321 PM CDT Thu Mar 22 2018 A brief period of mostly dry weather is expected Saturday afternoon into Saturday night. However, another round of light precipitation is expected Sunday as a warm air advection pattern sets up across the region. A few snowflakes could mix in as cooler air briefly dips into northeast NE Sunday morning, however the majority of any precip that does fall is expected to be liquid at this time. Another Rocky Mountain surface low will progress through the region Monday bringing a strong cold front and better shot for measurable precipitation. Thunderstorms still appear possible, especially across the southern half of the CWA as instability ramps up. Surface temperatures should remain above freezing through the day Monday, however as the cooler air pushes in Tuesday, there will be some potential for light snow to mix in once again. Surface high pressure finally builds in Tuesday evening, allowing for another brief period of dry weather before the next chance for rain/snow arrives late Wednesday night and into Thursday.
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&& .AVIATION...(For the 18Z TAFS through 18Z Friday afternoon) Issued at 1238 PM CDT Thu Mar 22 2018 VFR conditions will prevail through this evening. Increasing low level moisture advection after midnight though will result in deteriorating conditions through Friday morning. Expect MVFR cigs to prevail then at all terminals btwn 12z-18z Friday. At this point have decided not to include any mention of RA as areal coverage at that time is still in question. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None. && $$ SHORT TERM...KG LONG TERM...KG AVIATION...DEE is the U.S. government's official web portal to all federal, state and local government web resources and services.