971 FXUS63 KGRB 281953 AFDGRB Area Forecast Discussion National Weather Service Green Bay WI 253 PM CDT Sun Apr 28 2019 Forecast discussion for routine afternoon forecast issuance .SHORT TERM...Tonight and Monday Issued at 252 PM CDT Sun Apr 28 2019 High clouds continued to stream across the region this afternoon. Temperatures away from the bay and lake were in the 50s to around 60. Temperatures at the lakeshore were in the upper 30s to lower 40s. For tonight, low pressure will move towards Wisconsin. The region will be in the right entrance region of a 145 knot jet streak (GFS), along with increasing strong 850mb warm advection late tonight into Monday morning to help enhance precipitation across the area. Per coordination with surrounding offices have slowed down the arrival of the precipitation based on the latest meso models. The precipitation should be mainly snow across the far north, a mix of rain/snow central and rain south. Do have the chance of rain/snow as far south as the Brown/Oconto line, thus would not take much shift to the south to see a little snow in Green Bay. Precipitation is expected across the entire Monday morning, although should transition to rain across the north by late morning. Also, tried to slow down the ending of the precipitation by a few hours. The precipitation could also end as a little drizzle. Only made minor adjustments to min temps tonight, and went toward the cooler MET guidance for highs on Monday due to cloud cover, rain and easterly flow. .LONG TERM...Monday Night Through Sunday Issued at 252 PM CDT Sun Apr 28 2019 A seasonable weather pattern should prevail this week with the westerlies moving across the northern half of the United States and two or three distinct shortwave troughs moving through. The first upper trough and an associated inverted surface trough will be exiting the area Monday night with a few showers remaining in the evening. Tuesday should start out dry, but a stronger upper trough approaching from the Central Plains and an associated surface low will bring a more significant rainfall Tuesday afternoon into early Wednesday. It might be enough rain to bring some streams and rivers back above bankfull or flood stage, and slow the fall of others. Weak Pacific cold fronts should come through later in the week with some showers out ahead but moisture looks to be minimal. Temperatures this week should be below normal most days. && .AVIATION...for 18Z TAF Issuance Issued at 1200 PM CDT Sun Apr 28 2019 VFR conditions will continue into early Monday morning as high clouds and then mid clouds move into the region. After 06z, clouds will continue to lower into lower ended of the VFR category, then into MVFR category conditions around 12z or a few hours after and then continue through the morning. The question for tomorrow is will CIGS lower into the IFR category like the MET guidance suggest. Will eventually have CIGS lowering into the IFR category towards 18z tomorrow, a little quicker at KRHI than at KGRB/KATW/KMTW. Precipitation is expected to arrive late tonight, mainly snow across the far north, a rain/snow mix through mid morning at KAUW/KCWA and rain at KGRB/KATW/KMTw. The low clouds and precipitation will linger into the afternoon, before the precipitation ends by late afternoon or early evening. && .GRB WATCHES/WARNINGS/ADVISORIES... NONE. && $$ SHORT TERM.....Eckberg LONG TERM......RDM AVIATION.......Eckberg