


Area Forecast Discussion
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
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338 FXUS63 KDMX 061119 AFDDMX Area Forecast Discussion National Weather Service Des Moines IA 619 AM CDT Sun Apr 6 2025 ...Updated for the 12z Aviation Discussion... .KEY MESSAGES... - Cool and breezy Monday, warming through the end of the week - Precipitation chances (30-45%) return Wednesday-Thursday && .DISCUSSION... Issued at 236 AM CDT Sun Apr 6 2025 Tranquil conditions across the area early this morning with mostly clear skies across the area. Clouds do skim into southeast Iowa associated with light precipitation across Missouri into Illinois. Clear conditions and light wind has allowed temperatures to dip into the 20s in cloud free areas so far this morning and temperatures are expected to drop a few more degrees through daybreak. Temperatures will warm nicely into the afternoon with highs in the mid to upper 50s and abundant sunshine. Overnight tonight a shortwave will drop across the Great Lakes region, and while precipitation is expected to remain off to the east and just skim northeast Iowa within the NWS La Crosse area, cold air advection will sweep the area. This will pull temperatures down on Monday with highs in the 40s and Monday night-Tuesday morning lows in the low to mid 20s. Troughing pulls east on Tuesday with warm air advection increasing into the area and kicking off a warming trend through the end of the week and into the upcoming weekend. Meanwhile, low pressure across the central plains will move into Iowa overnight into Wednesday, bringing precipitation chances back to the area. Model soundings continue to indicate dry air in place which will limit any appreciable precipitation amounts, but spotty showers or sprinkles are expected. A secondary wave drops across the area into Thursday, but dry air remains a challenge and rain is expected to be light and spotty once again. GFS and Euro solutions have begun to converge, however minor difference in timing and placement of precipitation still exist. Dry and warmer into the upcoming weekend with extended models indicating a building thermal ridge shifting into the area. && .AVIATION /12Z TAFS THROUGH 12Z MONDAY/... Issued at 619 AM CDT Sun Apr 6 2025 VFR conditions will prevail through the TAF period. Southern sites KDSM/KOTM begin with north winds, becoming westerly into the afternoon across all sites. && .DMX WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...Hagenhoff AVIATION...Hagenhoff