


Area Forecast Discussion
Issued by NWS Omaha/Valley, NE
Issued by NWS Omaha/Valley, NE
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583 FXUS63 KOAX 260537 AFDOAX Area Forecast Discussion National Weather Service Omaha/Valley NE 1237 AM CDT Thu Jun 26 2025 .KEY MESSAGES... - Multiple rounds of showers and thunderstorms are expected across northeast NE and west-central IA this afternoon into the overnight period. A Flood Watch remains in effect for rainfall totals of 1 to 4 inches with localized areas up to 6 inches. - Strong to severe storms will be possible this afternoon with damaging winds (60-70 mph gusts) the primary concern, though hail and a brief tornado can`t be ruled out. - Hot on Saturday, with precipitation chances returning late Saturday night into Monday. && .DISCUSSION... Issued at 215 PM CDT Wed Jun 25 2025 This Afternoon and Tonight... Upper level analysis this afternoon depicts a mid- to upper-level trough over the western CONUS with ridging over the southeastern CONUS. Between these two features, we remain predominantly in southwesterly flow aloft. Large breaks in cloud cover across southeast NE and southwest IA will bring afternoon highs into the mid 80s to low 90s, a near ten degree jump from yesterday. Temperatures remain on the cooler side in northeast NE where cloud cover persists. A surface front that has been stalled across the area the past few days has lifted into northeast NE and west-central IA. This feature coupled with an incoming mid-level disturbance is expected to bring widespread thunderstorm development along the front this afternoon into the overnight period. These storms will pose both a severe weather and flooding risk. First the severe weather risk. Afternoon destabilization is expected to bring 2000+ J/kg of SBCAPE along with 25-35 kts of bulk shear and an LLJ increasing into the evening. This will lead to the development of a few scattered strong to severe thunderstorms this afternoon before more of an organized bowing cluster pushes in towards the evening hours. The primary concern will be damaging winds (60-70 mph gusts), though hail (up to 1") and a brief tornado can`t be ruled out. SPC currently has a slight risk (level 2 out of 5) for severe weather in the area. Severe weather potential will diminish into the overnight period. Gears then shift towards flooding concerns as ingredients come together for a line of training thunderstorms across northeast NE and west-central IA into the overnight period. This is supported by a warm cloud depth of 3-4 km and PWAT values pushing near 2", above the 90th percentile for sounding climatology in late June. CAM guidance is drawing a swatch of QPF values in the 1-5" range across northeast NE and into west-central IA, with localized areas possibility reaching up to 6". With heavy rainfall totals expected over an area that has already received rainfall totals in the 1 to 3" range in the past two days, a Flood Watch has been issued for northeast NE and west-central IA this afternoon into Thursday. Increased runoff and flooding potential will be present. Tomorrow... Overnight precipitation will gradually taper off through the morning hours with afternoon highs expected in the 80s. The aforementioned surface front will sink into the southern portion of our forecast area as the mid-level wave departs, bringing another round of showers and thunderstorms developing in the afternoon and evening. A few of these storms may be severe, with damaging winds (60+ mph gusts) the primary concern. SPC has this area in a marginal risk (level 1 of 5) for severe weather. Friday and Beyond... The surface front will continue to shift into the weekend. Friday, the front is expected to remain just to our south, keeping much of the area dry with highs in the upper 80s to low 90s. By Saturday, highs will take a step up into the mid 90s with heat index values in the 98-105 range. Precipitation chances return Saturday night into Sunday as a mid-level disturbance pushes into the area. && .AVIATION /06Z TAFS THROUGH 06Z FRIDAY/... Issued at 1237 AM CDT Thu Jun 26 2025 Scattered showers and storms will continue across the area tonight and while the main band of storms should remain southeast of OFK and northwest of OMA and LNK, occasional TSRA and MVFR to possibly IFR conditions are still expected at all sites, especially early in the period. Should see a transition to mainly showers Thursday morning with some lingering MVFR ceilings at OMA and OFK. Still expect storms to redevelop sometime in the 17-21Z window, but OMA and LNK remain on the far western edge, so not confident enough to include mention at this time. Otherwise, winds could be somewhat variable overnight with the on and off showers, but should eventually settle in at southerly to southwesterly into mid-morning. Eventually expect a turn to westerly and northwesterly, but speeds should remain around 10 kts or less. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...Flood Watch through this afternoon for NEZ011-012-015>018- 030>034-042>045-050-051-065. IA...Flood Watch through this afternoon for IAZ043-055. && $$ DISCUSSION...Wood AVIATION...CA