Thursday, September 9, 2010

Continued Unsettled Through Friday Morning, Then A Beautiful Weekend

Clouds, fog and mist today didn’t allow highs to get much above the lower 70’s in most areas. And these conditions will continue tonight, with the addition of a few thunderstorms, especially over the Sandhills.

A moist southeasterly wind flow that has tapped moisture from what was Tropical Storm Hermine, now located over northeast Oklahoma and moving eastward, will continue to keep skies mainly overcast with some fog and mist. But a trough currently extending from the extreme Western Panhandle Nebraska southward into eastern Colorado will begin to move eastward tonight, and will increase the risk of showers and thunderstorms. The risk will be highest over the Sandhills but anyone could see a shower or storm, especially before midnight. Lows will be in the lower 60’s with breezy conditions early that will diminish some by morning.

Friday will start with clouds, fog and mist, and perhaps a shower or storm over the Sandhills, but skies will begin to clear by afternoon, and after the passage of a cool front, it will become quite breezy again with northwesterly winds gusting to 30mph. Highs will approach 80 in most areas.

Football weather for tomorrow evening will be good with mainly clear skies, winds beginning to diminish a bit, and temperatures in the middle 70’s which will drop into the 60’s after sunset. There may be some residual wetness on the field, but no new precipitation is expected.

Then both days of the weekend look beautiful with sunny skies and highs around and into the 80’s as high pressure builds in from the west.

Mike

Wednesday, September 8, 2010

Unsettled Through Friday Morning, Then A Beautiful Weekend

Clouds and sun battled for control today, with only a few light showers being reported and mainly over eastern areas this morning. A front is basically stalled over the area, with western and southern areas to its south and eastern and northern areas to its north. Highs reached well into the 80’s in most areas to the south and west of the front, but Broken Bow and Valentine remained to the east and north of the front, and highs remained in the 70’s due to more cloud cover. It was a bit more humid as well.

Showers and thunderstorms developed over Colorado earlier this afternoon and are now moving through southwestern parts of Greater Nebraska, and showers and storms can be expected at least through midnight as a disturbance passes through. Then, some fog may develop later tonight as lows drop into the mild 60’s. It will remain breezy with southerly winds gusting to 30mph, but the winds will slacken a bit later tonight.

Thursday will dawn with perhaps some patchy morning fog, then some sun will try to break through the clouds, and there could be an isolated afternoon storm as highs approach 80. It will be breezy again with southeasterly winds gusting to 30mph.

Thursday night, a strong disturbance will pass to the north over the Dakotas, and a cool front will approach from the west. As a result, more showers and storms can be expected, which should be more concentrated over northern areas which will be closer to the disturbance riding eastward to our north. Lows once again will remain in the mild 60’s, with continued breezy conditions.

By Friday, the cool front will have moved through most of Greater Nebraska, and after any lingering showers and storms during the morning, skies will begin to clear during the afternoon as highs approach 80. It will remain breezy but this time with drier northwesterly winds.

The weekend looks beautiful with sunshine, low humidity, and highs in the 80’s.

Mike

Tuesday, September 7, 2010

Warming Up And A Bit Unsettled

This morning’s frosty temperatures will not be repeated anytime soon. The low of 34 in North Platte early this morning broke the old record of 35 set way back in 1898. By afternoon, sunshine and a southerly wind helped boost temperatures well into the 70’s to around 80 in most areas.

After clear skies early, some clouds will roll in later tonight, and morning lows will only dip to around 50.

Wednesday will be mostly cloudy, and moisture will increases on southerly winds, partly due to the remnants of Tropical Storm Hermine which will be passing by to our south and east over the next couple of days. Some isolated thunderstorms are a possibility at just about anytime with highs around 80. It will also be breezy with winds gusting to 30mph.

Wednesday night and Thursday will be mainly cloudy, and as moisture continues to increase, some fog is possible late at night and into Thursday morning. There is just the slight chance of a shower or storm with lows only dropping to near 60, and highs Thursday around 80.

As low pressure passes to our north over the Dakotas Thursday night and Friday, it will drag a front through Greater Nebraska. This front will likely set off showers and thunderstorms, with the best chances to the west and north as those areas will be closer to the northern disturbance. Lows will be near 60 and highs will be near 80 once again.

By the weekend, high pressure will build in from the west, and we can expect sunny and pleasant conditions both weekend days with highs in the lower to middle 80’s.

Mike

Monday, September 6, 2010

Winds Diminish Tonight, But Frosty Lows Likely

Gusty winds over 40mph and in some cases approaching 50mph will begin to diminish later this evening, and lighter winds and clear skies will lead to frosty, and possibly record lows by tomorrow morning.

The winds today were caused by a tight pressure gradient between potent low pressure over South Dakota, and high pressure building in from the Pacific Northwest. As the low moves eastward toward the western Great Lakes, the pressure gradient will relax, and clear skies, dry air, and light winds will allow temperatures to rapidly fall later tonight. The coldest readings will occur over portions of the Panhandle and the Platte River Valley where lows in the lower 30’s are likely. For this reason, a Frost Advisory is in effect from 4AM to 10AM CT tomorrow. The record low for North Platte is 35 degrees set way back in 1898, so if the temperature reaches the forecasted low of 33, a new record will be established.

The high will then move right over Nebraska Tuesday before moving to the east later in the day. This will eventually allow winds to turn to a more southerly direction, allowing warmer air to begin flowing northward into Greater Nebraska. Highs Tuesday will reach the upper 70’s under bright, sunny skies with a light breeze.

By Wednesday, southerly winds will allow a bit more moisture to work into the region, and a frontal system nearby could spark some isolated thunderstorms, especially over northern areas which will be closer to disturbances passing through the Northern Plains. Skies will be partly to mostly cloudy from Wednesday through Friday, and the chance for isolated storms will continue through Friday with highs mainly in the lower 80’s.

Mike

Friday, September 3, 2010

Warm Saturday, Hot Sunday, Then Some Changes For Labor Day

Temperatures this morning started out in the chilly upper 30’s and lower 40’s in most areas, but sunshine helped warm readings into the middle to upper 70’s this afternoon. And we will still have one more very chilly night before a major warm-up, and by Sunday it will feel very much like summer again.

Tonight will be clear with lows falling into the lower 40’s.

Then Saturday will be bright and sunny, and a light southerly wind will quickly boost temperatures into the middle to upper 80’s by late afternoon. Low humidity will make it quite pleasant for any outdoor activities.

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

Then on Sunday, a southwesterly breeze coupled with lots of sun will raise temperatures well into the 90’s in many areas, and even a few upper 90’s are possible. In addition, low humidity and breezy conditions could raise the fire weather threat, so stay tuned.

Unfortunately, it is necessary to make some changes to the forecast for Labor Day Monday. A cool front that originally looked like it would not move through Greater Nebraska until the afternoon and evening on Monday now looks like it will move through Sunday night into Monday morning. This will cause three changes to the forecast. First, I now need to introduce a very slight chance of a thunderstorm for overnight Sunday into Monday morning. However, because the air will still be quite dry, the risk will be very minimal. Second, highs will be cooler and probably stay in the 70’s in many areas. Third, and probably most important, it will be quite windy with winds gusting up and over 35mph at times. So some outdoor plans may be affected, especially because of the cooler temperatures and the windy conditions.

Stay tuned to KNOP-TV and log into KNOPNEWS2.COM for the latest weather over the long weekend. Regardless of the weather, enjoy the holiday!

Mike

Thursday, September 2, 2010

A Chilly Night Tonight But Then A Gradual Warm-up

We will enjoy lots of sunshine and clear skies from now through Labor Day. But first, we will enjoy a chilly, and in some localized cases, a frosty night.

High pressure pushing eastward from the Pacific Northwest will control our weather through Sunday before a frontal system begins to approach from the north and west on Monday. Skies will be clear or become clear over Greater Nebraska tonight, and with diminishing winds and a very dry airmass in place, this will set the stage for temperatures to drop quickly. Lows by sunrise tomorrow will range from the middle 30’s to lower 40’s, with the lower readings most likely over the Panhandle and Platte River Valley. Some of the coldest areas could even see a bit of frost, though with warm ground conditions any frost is expected to be light and not widespread.

Friday will dawn sunny and chilly, but the sunshine will warm temperatures quickly into the 70’s, and well into the 70’s in some cases, and with light winds it should be a very pleasant day.

Friday night will still be chilly with clear skies and lows in the 40's.

Then Saturday will feel more like late summer with clear, sunny skies and highs from the middle 80’s to around 90.

Sunday will be a hot and breezy day with bright sunshine and highs into the 90’s, and perhaps well into the 90’s in some areas.

Then Monday should still be mainly sunny and quite warm with highs in the 80’s to near 90. There is a chance of thunderstorms Monday night as a front works its way through the region.

Mike

Wednesday, September 1, 2010

Isolated Storms Overnight, Then Sunshine Rules Through The Holiday Weekend

After a cluster of storms moved across southern parts of the viewing areas very early this morning, the day as a while turned out nice with sunshine and highs in the 80’s. Although I expected skies to be partly to mostly cloudy with more widespread thunderstorm activity during the afternoon, the clouds and storms did not materialize. Part of the reason likely was that this morning’s cluster of storms stabilized the atmosphere enough to preclude development.

However, a dryline over the Nebraska Panhandle and a cool front approaching from the northwest will likely produce isolated thunderstorms overnight, and a couple of these storms could be strong to severe with damaging winds and large hail. Skies will be partly cloudy with lows in the 50’s.

But the front will push to our south by morning, allowing high pressure to build in from the Northwest, and Thursday will feature increasing amounts of sunshine, but highs will only crest into the 70’s. It will be quite windy also with gusts up and over 35mph at times.

Then Thursday night will be quite chilly with clear skies, diminishing winds, and dry air allowing temperatures to drop quickly, and lows will bottom out in the lower 40’s, and even some 30’s in some areas. Some light frost is even possible but if it occurs it should be localized and not too widespread.

Friday will still be a pleasant day with sunshine and highs in the 70’s with light winds.

The long Labor Day weekend is looking sunny and warmer after another chilly start Saturday morning, with highs warming into the 80’s Saturday, and the 90’s Sunday and Monday, so summer will return for the unofficial end of the season after our brief spell of cooler weather.

Mike