53°F
Updated:
11/17/2025
6:21:43pm
Forecast Discussion
NWS Omaha/Valley, NE
155 FXUS63 KOAX 172328 AFDOAX Area Forecast Discussion National Weather Service Omaha/Valley NE 528 PM CST Mon Nov 17 2025 .KEY MESSAGES... - 20-50% chance of rain this evening. Breezy winds out of the southeast gusting to 20-35 mph should decrease this evening. - Another storm system will move into the region Thursday through Friday, bringing a 20-50% chance for rain. - Mild, dry weather returns over the weekend before a third system arrives on Monday. && .DISCUSSION... Issued at 319 PM CST Mon Nov 17 2025 Cloud cover has spread across eastern Nebraska and western Iowa as a low pressure system approaches, currently located over the Nebraska Panhandle. Scattered showers have developed along the warm front along the Missouri River north of Omaha. Marginal elevated instability has led to isolated thunderstorms along this boundary. We`ll continue to see chances for isolated thunderstorms as showers expand across the area this afternoon. A cold front will move through tonight shifting winds to northerly and bringing back in seasonably cool air. Cooler temperatures on Tuesday with highs in the mid 40s to mid 50s across our area. Dry weather returns as a ridge moves overhead with surface high pressure in place. Ridging amplifies over the southeastern CONUS midweek leading to strengthening southwesterly flow across the central CONUS. A shortwave will move through on Wednesday bringing a shift back to southerly surface winds which will warm afternoon highs back up into the mid 50s to low 60s Wednesday afternoon. Late in the week we see the strong upper-level trough over the western CONUS eject a strong Low east toward the Rockies as a second strong Low takes its place. This Low will weaken as it approaches, expected to pass south of our area across Kansas and Missouri. This would be a great snow scenario if we were colder, but with afternoon highs still in the 50s on Thursday, and 40s on Friday, we should stay too warm for any potential snow. Expect a cold rain to start to move in from the south on Thursday, staying mainly south of I-80 through the afternoon. Rain chances expand northward Thursday night into Friday, coming to an end Friday evening before the sub-freezing temperatures arrive. Ridging moves back in over the weekend, with a warm front bringing temperatures back up into the mid 50s for Saturday and Sunday. The next significant weather system looks to arrive around Monday next week. Ensemble still not showing any significant chance for snow even with this system. The Climate Prediction Center is forecasting the potential for a Sudden Stratospheric Warming Event toward the end of November, bringing in colder temperatures around the second half of next week into early December. We are already seeing colder temperatures showing up toward the end of our forecast models/ensembles supporting this scenario. With this we could potentially see chances of snow start to increase, with ensembles starting to ramp up chances the weekend after Thanksgiving. && .AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/... Issued at 528 PM CST Mon Nov 17 2025 MVFR ceilings expected to linger at OFK through the period, with a drop to IFR from 09Z-18Z. While the IFR ceilings are in place, there are some signs for patchy drizzle that could also reduce visibility, but confidence in how widespread it will be is low. The MVFR ceilings are also expected to expand back southward and move into OMA and LNK Tuesday morning, with VFR ceilings favored at those sites before then. Also expect some shower development early in the period with an outside shot for an isolated thunderstorm (20% chance). Should anything heavier move over a TAF site, could see a brief reduction to MVFR ceilings/visibility. Otherwise, winds will turn counter- clockwise through the period, eventually becoming northerly early Tuesday morning, with speeds on either side of 10 kts. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None. && $$ DISCUSSION...McCoy AVIATION...CA
NWS OAX Office Area Forecast Discussion
Forecast Discussion
NWS Hastings, NE
448 FXUS63 KGID 172337 AFDGID Area Forecast Discussion National Weather Service Hastings NE 537 PM CST Mon Nov 17 2025 .KEY MESSAGES... - A handful of light showers is possible (20-25% chance) north of I-80 tonight between midnight and 5AM. - Highs this week beyond Tuesday (upper 40s to upper 50s) and Friday (Mid to upper 40s), should range between the mid 50s to low 60s. - Precipitation chances near the end of the week will peak Thursday night into Friday morning. PoPs have jumped up to 20-50% for South Central Nebraska and up to 50-60% for North Central Kansas. The greatest confidence lies towards the south. - This Thursday/Friday system could deposit up to 0.5-1" of precipitation across our North Central Kansas areas. && .DISCUSSION... Issued at 315 PM CST Mon Nov 17 2025 Tonight (Monday) through Wednesday... The low that we have been monitoring across the last few days now sits across Southeastern Wyoming and the western panhandle of Nebraska as of this afternoon. This system has already deposited a few bursts of sprinkles across some of Central Nebraska today with potentially a few more light showers to come later tonight (for a few areas near and north of I-80). This low across the next few hours will continue its journey eastward and through the rest of the Central Plains region. The latest models (particularly the HRRR & RAP) have recently flip-floped their guidance regarding the intensity and coverage of the systems`s wrap around showers tonight. We suspect that now only a handful of places near and north of I-80 could receive one of these brief light showers between midnight and 5AM tonight. Most areas, however, are likely to stay dry. Fog overnight tonight can`t be ruled out as a majority of the HREF ensemble members paint a broad NNW to SSE swath of fog developing across our the central 2/3rds of the area. A few places of dense fog may be possible and will be monitored closely for the need to issue any dense fog advisories or special weather statements. The low- level clouds left behind tomorrow morning should retain through the rest of the day with northerly winds setting up behind the system. Together, these features will impact highs, keeping temperatures from escaping the upper 40s and 50s. The wind directions becoming southerly with a few break in the clouds Wednesday will allow highs to return back to the upper 50s to low 60s. Thursday and Beyond... The feature of note in our long-range forecast will be the presence of a deep trough climbing through the Rockies Thursday. As this wave approaches the Central and Southern Plains, a weak surface cyclone will likely spinup near Oklahoma. Recent path projections of this low has nudged its trajectory towards a more eastward rather than a northeastward track. Because of this flatter forecast path, there is a little more question today of how far north its rain bands will actually stretch. The 12z GFS run shows the edge of the precipitation bands halting near the state line while the 12z ECMWF is slightly more generous, pushing the bands of precipitation up into the first few far southern counties of Nebraska. Given this setup, the coverage of precipitation will likely end up having a sharp northward cutoff of accumulation amounts. The NBM, used to define our PoPs, may be more on the generous side for Central Nebraska (20-50% best confidence south). The winners, by all means, should be our north Central Kansas areas that are currently projected to see anywhere between 0.5-1" of moisture by the end of the day Friday. Timing wise, the earliest precipitation could enter our far southern extent would be Thursday morning, with the highest confidence window late Thursday night into Friday morning. The forecast keeps the majority of the precipitation falling as rain with a low end chance for a few short-lived mixed precipitation possible if the rain bands venture north of I-80 during the early AM hours on Friday (places that could see temperatures approaching to just below freezing for a few AM hours). Besides the precipitation chances, highs should hold steady in the mid 50s to low 60s through the weekend, with a quick dip in highs on Friday. Excessive cloud coverage paired with steady north- northeasterlies will keep highs from exceeding the mid to upper 40s Friday afternoon. Over the weekend, a cutoff low forming off the southeast U.S. coast, could eventually rejoin the upper-level flow early next week. This possible disturbance would be the next feature in line to offer the area its next shot a precipitation near the middle of next week (potentially our first season snow). That is if it is able to propel itself into the Central Plains. We keep our tabs for now open on this disturbance, though so far there has not been enough consistency between model runs to give us the need to prepare our snow boots quiet yet. && .AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/... Issued at 535 PM CST Mon Nov 17 2025 For KGRI/KEAR Airports: MVFR ceilings currently over central Nebraska will drop to IFR tonight. Patchy fog is also expected to accompany this through early morning. A few light rain showers also cannot be ruled out, but impacts/coverage will be limited. For Tuesday, ceilings will slowly improve through the day, but are favored to remain IFR through most of the morning, and MVFR through most (if not all) of the afternoon hours. Light/variable wind this evening turns to the north early Tuesday morning. && .GID WATCHES/WARNINGS/ADVISORIES... NE...None. KS...None. && $$ DISCUSSION...Stump AVIATION...Mangels
Navigation
