Monday, September 20, 2010

Amazingly Hot Today After A Very Chilly Weekend

What a wild ride we’ve had temperature-wise since Friday! Friday will sunny and pleasant with highs from the 70’s to the middle 80’s. But then a cold front pulled the rug out from under the weather, colder air filtered in from the north overnight Friday into Saturday, and highs did not budge out of the middle 40’s in most areas Saturday with low clouds, fog, mist, some showers, and breezy conditions. Sunday was a bit better but not by much, with clouds and highs in the 50’s to lower 60’s.
However, clear, sunny skies allowed highs today to skyrocket into the middle 90’s to near 100, so a full 40 to over 50 degree difference from Saturday, and a 35 to over 45 degree difference from Sunday! But the heat will be gone by tomorrow.

A cold front approaching from the northwest will move through overnight. This front, and a trough approaching from the Rockies, is causing showers and thunderstorms to develop from the Nebraska Panhandle southwestward into Colorado. These storms will move east and southeastward tonight, and isolated storms can be expected across Greater Nebraska. No widespread severe weather is anticipated, but a couple of storms could become strong with gusty winds and some hail. Lows will be in the 50’s under mostly cloudy skies.

In the wake of the front, Tuesday will be partly sunny and pleasant with highs in the 70’s.

The next chance of thunderstorms, some perhaps severe and with heavy rainfall, will come later Wednesday into Thursday morning as a deep trough approaches from the west. Highs later this week will remain in the 70’s. Friday and the weekend is looking very nice with sunshine and highs in the 70’s to lower 80’s.

Don’t forget to track tonight’s storms using our WeatherActive feature at KNOPNEWS2.COM.

Mike

Friday, September 17, 2010

A Chilly And Damp Start To The Weekend

Hope you enjoyed today’s sunny and pleasant weather, because tomorrow’s weather will be nothing like today’s.

A cool front has already moved through Greater Nebraska, and now extends from northwestern Kansas to northeastern Nebraska, and the front is beginning to stall. A secondary cool front, or I will call this one a cold front, now lies from northern Wyoming and South Dakota and is pushing southward, and will be passing through the region overnight. Behind this front, temperatures are in the middle 30’s in Montana and western North Dakota, and some snow is falling. We won’t see any snow or temperatures that cold, but Saturday will be quite chilly nonetheless.

So expect this evening to be fair and mild for Railfest or any sports events with just the slight chance of a thunderstorm. But then skies will become cloudy overnight, and it will become breezy as well with east to northeasterly winds gusting to 25mph. There could be an isolated thunderstorm, as well as a few showers and some drizzle and fog late with lows near 50.

Saturday will be a cloudy, breezy, chilly and damp day for Railfest events with highs only in the 50’s. However, it will not be a washout by any means with perhaps a few showers and some drizzle, so grab a jacket and umbrella and go out and enjoy.

The weather Sunday is a tough call. The front to our south will begin lifting northward as a warm front, but exactly how quickly that will happen is still in question. If the front moves north quickly, Sunday will turn out sunny and warm with highs in the 80’s. However, if it takes its time moving northward, we could stay a bit cloudy and much cooler with highs in the 60’s. Right now, I think southwestern areas will see more sun with highs near 80, but northern areas may struggle with clouds and highs in the 60’s to near 70.

But by Monday, the front will be to our north, and it will be sunny and warm to even hot with highs near 90. There is a risk of a storm late as another front approaches. Then the midweek will feature highs in the 70’s with the risk of occasional isolated storm activity.

Mike

Thursday, September 16, 2010

Hope You Like Roller-Coasters!

Today’s weather featured mainly sunny skies, and pleasant breeze and highs in the middle 70’s to middle 80’s. Friday will be similar, but then get ready for a roller-coaster ride temperature-wise over the weekend.

High pressure over the Central Plains will control our weather through most of Friday, but a cool front will cross Greater Nebraska during the day. For tonight, expect mainly clear skies and comfortable conditions with lows in the 50’s. Friday will be mostly sunny, and it will become breezy during the day with northeasterly winds gusting to 25mph, and highs will approach 80, except stay in the 70 north. There is a slight chance of a late day thunderstorm, but most areas won’t see one.
Then tomorrow night, moist winds from the east will cause clouds to increase, and a few showers are possible along with some drizzle, and perhaps some fog with lows near 50.

But Saturday will be a cloudy and very cool day, with a few showers possible, along with some drizzle, but highs will struggle to reach 60, and will stay mainly in the chilly 50’s. So certainly not a great day weather-wise, and one of the coolest we have seen in a while.

However, the front that will come through tomorrow will move back north as a warm front during Sunday, and a big warm-up will begin. Sunday will be warmer, but the extent of the warmth will be dictated by how fast the warm front moves through. If it moves through quickly highs will reach well into the 80’s. However, right now I am taking a conservative approach and forecasting sunny skies with highs around 80. But tune in tomorrow to News 2 for any updates to Sunday’s forecast.
Monday will be very warm to even hot as highs reach well into the 80’s, and perhaps even the lower 90’s, with sunshine. But another front will approach late in the day, and a thunderstorm could occur.

Then highs will cool again by midweek into the 70’s with some sunshine, but also the risk a some isolated storms.

Mike

Wednesday, September 15, 2010

Pleasant Through Friday, Then A Challenging Weekend Forecast

With the exception of Dawson County, where some wind damage occurred around Lexington as a result of last night’s thunderstorm activity, most of Greater Nebraska missed any severe weather as storms that developed passed by to the north over South Dakota, or to the south over Kansas. There were three tornado reports over extreme northwestern Kansas, and numerous large hail and strong wind reports in both Kansas and South Dakota.

Now that a cool front has is now to the south of the region, high pressure over North Dakota is gaining control of the weather, and skies have cleared and highs have reached the middle 70’s north to the middle 80’s south. A moderate breeze will begin to die down toward sunset.

Skies will be mostly clear tonight, and it will be cooler than last night with lows in the 40’s.

Thursday will be mostly sunny with a lighter wind, and highs will approach 80 in most areas, so a pleasant day overall.

Friday will be mainly sunny with highs once again near 80, but another cool front will be approaching from the north, and this could set off a late day thunderstorm.
This front will likely remain near or over Greater Nebraska through the weekend, and presents challenges to the weekend forecast. Behind the front, the temperatures will be quite chilly with highs in the 50’s and 60’s, but to the south of the front it will be warm to hot with highs in the 80’s and even the 90’s. The question is where does the front establish itself? Only a two hundred mile difference in where the front is located could be the difference between highs in the 50’s and 60’s versus highs in the 80’s, or even lower 90’s. If the front stalls right over Greater Nebraska, we could see a very large temperature gradient between north and south, possibly on the order of 30 degrees or more. In addition, because of the proximity of the front, isolated storms cannot be ruled out both weekend days.

So stay tuned to KNOP-TV for the latest weather forecasts for the weekend, which will become more fine tuned especially by Friday.

Mike

Tuesday, September 14, 2010

Thunderstorms, Potentially Severe Overnight Tonight

After a very foggy start, clouds remained until early afternoon in many areas, but then the sun broke through and the afternoon was quite nice with highs in the 80’s.
But a combination of weather factors will likely produce scattered thunderstorms overnight tonight, some which may be strong to severe with large hail, damaging winds, and perhaps even an isolated tornado.

A nearly stationary front extends from northeastern Wyoming through northern Nebraska to southeastern Iowa. A dry-line extends from a low over central Wyoming into eastern Colorado, with another weak low over east-central Colorado. An upper trough is moving eastward from the Intermountain Region. All of these features, couples with a warm and moist southeast flow, will likely produce scattered storms over Greater Nebraska overnight, with some severe weather possible. Showers and thunderstorms are already developing over northeastern Colorado in the vicinity of the dry-line, and these will likely move eastward into Greater Nebraska later this evening.

Otherwise, expect mostly cloudy skies with lows near 60.

By Wednesday, a cool front will approach from the northwest and move through during the early afternoon. Isolated storms may accompany the front, especially during the morning hours. Otherwise, skies will be partly sunny and it will turn quite breezy with northwesterly winds gusting to 30mph during the afternoon. Highs will be in the 70’s.

The weather for the remainder of the week will be governed by another frontal system dropping down from the north. It appears this front will become nearly stationary over the Central Plains, but exactly where that happens will have a major effect on our weather from Friday through Monday. The front will separate much cooler air to the north from much warmer air to the south, and if the front sets up right over Nebraska there could be a very large difference in temperatures from north to south with highs perhaps in the 50’s and 60’s north and 80’s south. But if the front sets up to the north or south of the area, cooler or warmer temperatures than are currently predicted will occur. Additionally, the front could spark thunderstorms so stay tuned to later forecasts.

Mike

Monday, September 13, 2010

Still Warm But With A Chance Of Storms

Beautiful late summer weather that has been with us since Friday will be interrupted the next couple of days by thunderstorms, especially later tomorrow into Wednesday.

A couple of fronts and situated over and just to the south of Nebraska are interacting with moisture streaming in from the southeast, and thunderstorms have been developing from northern Kansas northeastward into eastern Nebraska, and a few of them have been strong to severe with strong winds and large hail. Right now, it appears that the most widespread activity will remain over these same areas, but a few isolated storms could form over southern and eastern parts of our viewing area this evening into early tonight, and any storm that forms is capable of turning severe. A Tornado Watch is in effect until 11pm CDT from Lincoln and Custer Counties south and east. Later tonight, the threat will end with partly cloudy skies and lows in the 50’s.

Tuesday will be partly sunny, breezy and still warm with highs in the 80’s, but thunderstorms will likely develop once again late in the afternoon and especially Tuesday night and into Wednesday as a strong disturbance in the upper levels approaches and interacts with fronts still in the area. Once again, any storm could turn severe. Lows tomorrow night will be near 60, with highs Wednesday around 80.

The front should finally press south of Greater Nebraska by Thursday, leaving us with partly sunny skies and highs a bit cooler, in the 70. But another front moving in from the northwest will approach by Friday and perhaps stall near or over the area, with possibly more unsettled weather for the weekend into early next week.

Mike

Friday, September 10, 2010

A Beautiful Late Summer Weekend

Perfect football weather for local teams this evening as a cold front has passed through Greater Nebraska, and northwesterly winds have ushered in much drier conditions, allowing highs to reach the lower 80’s in many areas.

Expect skies to be mainly clear tonight, and winds which are breezy this evening will slacken overnight. Lows will bottom out in the cooler middle 40’s, so a cooler but comfortable night overall.

Then as high pressure moving in from the West remains in control all weekend, both Saturday and Sunday will feature deep, blue skies, light winds, and highs in the lower and middle 80’s. So very pleasant late summer weather and perfect for all outdoor activities.

Saturday night will be clear and pleasant with lows around 50.

The nice weather will stick around on Monday with sunshine and highs in the 80’s.
The next chance of showers and thunderstorms will come by the middle of next week as a series of fronts and disturbances approaches. Highs will fall back a bit into the 70’s, but no really cool weather is foreseen.

Enjoy the weekend!

Mike