Marine Weather and Tides
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
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|Sunrise 7:52AM||Sunset 5:15PM||Friday December 6, 2019 4:33 AM CST (10:33 UTC)||Moonrise 2:34PM||Moonset 2:03AM||Illumination 70%|
7 Day Forecast for Marine Location Near Wood Lake, NEHourly EDIT Help
Area Discussion for - North Platte, NE  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS63 KLBF 060948 AFDLBF
Area Forecast Discussion National Weather Service North Platte NE 348 AM CST Fri Dec 6 2019
SHORT TERM. (Today through Saturday) Issued at 347 AM CST Fri Dec 6 2019
Near term concerns revolve around the potential for fog development across the western Sandhills into portions of the eastern Panhandle and southwest Nebraska. High pressure at the surface continues to track to the south-southeast this morning, centering over much of Nebraska by sunrise this morning. This will pit much of western Nebraska on the western fringe of this system and thus removed from the coldest air it brings with it out of Canada. Given weak flow and moisture near the surface, have seen widespread fog develop across the Panhandle but this has struggled to push east much. Will watch this closely this morning but believe the limited coverage area precludes any fog headlines. Confidence is highest that biggest fog impacts will occur across the far western Sandhills in southern Sheridan County to northern Garden County (including Highway 2) and as far east as Highway 61 where visibilities may dip below 1 miles in spots before conditions improve quickly after sunrise. Will see temperatures near to slightly below normal as low-level clouds hang tough for the early part of the day, mainly west of Highway 83. Subsidence behind the departing system to the south and mid-level drying as temperatures rise should allow for skies to become partly to mostly sunny for Friday afternoon. This thought is generally backed by high-res guidance which warms much of the area above 40 degrees with only a few pockets of upper 30s across the Sandhills into far north central Nebraska where remnant snowcover remains. Should cloud-cover remain more stubborn we could see these values be too high.
Some NWP guidance, most notably the NAM/NAM Nest/SREF, suggests a repeat of fog concerns for Friday night/Saturday morning across much of the local CWA. By this time winds will generally be out of the southwest for much of the area with fairly strong winds off the surface, generally 20 to 25 knots. Thinking this potential is fairly low at the moment and so will leave out of the forecast for the time being. Lows are expected to fall into the 20s under partly to mostly cloudy skies. We'll see temperatures jump on Saturday with dry southwest winds continuing and partly to mostly sunny skies. Temperatures at h85 will look to exceed the 75% moving average for the day making for a fairly high confidence in seeing temperatures above normal values for early December. Have forecast highs in the upper 40s across north central Nebraska to mid 50s over the far southwest, generally around 10 to 15 degrees above normal. Will expect quiet conditions before another cool front moves through the area late bringing another cool down for the start of next week.
LONG TERM. (Saturday night through Thursday) Issued at 347 AM CST Fri Dec 6 2019
Beginning 12z Sunday. As the frontal boundary sweeps through the area early Sunday, winds will remain elevated helping to keep things mild for the start of Sunday as lows generally remain in the upper 20s across the area. Temperatures will peak by early afternoon before beginning to fall for the late afternoon as cold air advection behind the front begins to increase with highs ranging from near 40 along the Nebraska/South Dakota border to the low 50s south of Highway 23. Weak mid-level perturbations in the h5 flow will move overhead during the day, but the daytime is expected to remain dry for now. Not until more substantial height falls and concentrated shortwaves move in will precipitation chances increase. At the surface, lee-cyclogenesis will lead to the development of a surface low over the southern plains. This will help to reinforce the cold air already moving in as northerly winds begin to strengthen Sunday night into early Monday. The strongest vorticity advection looks to occur Sunday evening into early Monday as the main clipper-like system dives southeast into the area. Precipitation chances will favor areas north of Highway 2 as mid- level frontogenesis increases across the north central counties. The GFS is quite bullish in this, developing a strong fgen band in the h85-h7 layer and sweeping it southeast across the area. This strong fgen band will act to remove any lingering dry air in place ahead of the developing precipitation, with forecast sounding analysis indicating a quick saturation of the profile and thus very limited potential for anything but snow at the moment. General consensus is for this quick moving system suggests limited snowfall accumulations but trends have been to increase these amounts slightly while also shifting them further south and east. Will watch this closely in the coming days, but expecting only minor impacts at the present time.
Much colder air will be left in the wake of this system as it exits the area by Monday morning. Did up winds for late Sunday into early Monday and as air temperatures fall into the teens and single digits, will have to watch for some subzero wind chills across portions of the area. Winds for the local area should decrease quickly during the afternoon but Arctic air will be in place holding daytime highs into the 20s and 30s northeast to southwest. Colder air will remain in place for a few days thereafter as the area sees itself under high-amplitude northwest flow on the backside of a strong Hudson Bay trough. This north-northwesterly flow will bring a strong fetch of Arctic air through the middle of the week though the coldest air will likely remain east of us. We can still expect to see daytime highs remain below normal for the Tuesday through Thursday timeframe before we see any improvement towards the end of the forecast period. This extended period looks to be relatively quiet as well given most mid-level energy remains in closer proximity to the stronger trough well to the northeast. A modest system looks to approach the central to southern plains towards the end of the week, but this system will be of Pacific origin and therefore unlikely to bring much cold air with it. Uncertainty in precise track of it makes this a low-confidence forecast, however, global deterministic models with backing from extended ensembles tend to favor a more southerly track and therefore keep most impacts south of the area.
AVIATION. (For the 06Z TAFS through 06Z Friday night) Issued at 1124 PM CST Thu Dec 5 2019
IFR ceilings can be expected across western Nebraska overnight and until 15Z. Some patchy fog is also expected west and northwest of KLBF and KVTN, although 5SM BR 09Z-14Z at KVTN and 11Z-16Z at KLBF. Skies will quickly become VFR by 17Z across western Nebraska. light and variable winds after 09Z will become light southwest Friday morning up to 12KT at KVTN after 18Z.
LBF WATCHES/WARNINGS/ADVISORIES. None.
SHORT TERM . Jurgensen LONG TERM . Jurgensen AVIATION . Roberg
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Valentine, Miller Field, NE||13 mi||41 min||E 4||7.00 mi||Overcast||29°F||24°F||82%||1028.7 hPa|
|Ainsworth Regional Airport, NE||22 mi||38 min||ENE 3||10.00 mi||Overcast||28°F||28°F||100%||1026.7 hPa|
Link to 5 minute data for KVTN
Wind History from VTN (wind in knots)
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|2 days ago||W||W||W||W||W||W||W||W||W||W||W||W||W||W||W||W||W||SW||SW||SW||W||W||W||W |
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Wind Forecast for North Platte, NE (5,6,7,8)(on/off)  Help
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