Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
162 FXUS63 KOAX 180827 AFDOAX Area Forecast Discussion National Weather Service Omaha/Valley NE 327 AM CDT Wed Oct 18 2017 .SHORT TERM...
-- Changed Discussion --
(Today through Friday) Issued at 323 AM CDT Wed Oct 18 2017 Continued dry and warm through Friday. Weak west/northwest flow aloft will continue today as a weak upper level ridge slides east across the Southern Plains. A strong shortwave trough moving across the Canadian Prairie Provinces will allow a cold front to drop southeast and weaken as it moves across our area this afternoon bringing primarily a wind shift and perhaps some better mixing along the boundary during peak heating. Highs today should range from the mid to upper 70s. A large area of surface high pressure is forecast to build overhead tonight into early Thursday with return southerly flow increasing during the day Thursday. By Thursday night, strong theta-e advection is expected ahead of an approaching shortwave trough over the southwestern US. This trough tends to weaken as it slides northeast into late Friday however a stronger trough will quickly move east out of the Pacific Northwest and into the northern High Plains by early Saturday. At the surface, the associated frontal boundary will extend from the eastern Dakotas southwestward into low pressure over northern Kansas. A strengthening low-level jet overnight Friday into Saturday could aid in nocturnal thunderstorms over the area. Thunderstorms look to become more widespread through the day Saturday as the strong front dives southeast across the forecast area. .LONG TERM...(Friday night through Tuesday) Issued at 323 AM CDT Wed Oct 18 2017 Precipitation should be quick to clear from west to east Saturday evening as the upper trough axis shifts east of the forecast area. Moderating temperatures are expected into next week as a deepening trough to our east keeps the colder temps across the eastern third of the US.
-- End Changed Discussion --
&& .AVIATION...(For the 06Z TAFS through 06Z Wednesday night) Issued at 1118 PM CDT Tue Oct 17 2017 VFR conditions expected through the fcst pd. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None. && $$ SHORT TERM...Kern LONG TERM...Kern AVIATION...DEE

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.