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65 posts from January 2017

01/31/2017

HD VIDEO: Kilauea Spews Fire Hose of Lava into Sea!

Footage captured by the USGS’s Hawaiian Volcano Observatory reveals the remarkable volcanic ‘firehose’ in action as it produces dangerous blasts, creating 'hazardous conditions on land and at sea'. Courtesy: USGS

A literal waterfall of hot molten rock pouring into the ocean. Referred to as the "fire hose" this was an absolutely amazing view of new land being created. Watch as a large piece of rock falls and the flow changes. Courtesy: USGS

Simply put, nature is incredible!  

WDRB Meteorologist Jeremy Kappell

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01/30/2017

DRONE VIDEO: Giant Fissure Opens up in Arizona!

Video via daily news

Drone video from the Arizona Geological Survey of a two mile long fissure that opened opened up last week.  The 25 foot deep crack in the Earth appeared near Picacho Peak just north of Tuscon and is believed to have been caused by agricultural ground water pumping in the area.  Fissures such as this have been known to damage infrastructure and poses a threat to livestock.

WDRB Meteorologist Jeremy Kappell

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01/29/2017

A "Checkerboard" or Highly Structured Topography??

ISS050-E-28519Click here for full resolution topographic "checkerboard" image

Checkerboarding in Northern Idaho : Image of the Day

An astronaut aboard the International Space Station observed this distinctive checkerboard pattern alongside the Priest River in northern Idaho. The photograph was taken just before sunset, so some mountainsides glow while others are covered in long shadows because of the low Sun angle.

The white squares in the checkerboard show where snow has fallen on deforested ground—where trees have been removed for logging. These patches alternate with dark brown-green squares of dense forest, where trees obscure the snow from the astronaut’s view.

The checkerboard pattern is the result of an agreement made in the early 1800s where alternate one-square-mile parcels of land were granted by the U.S. government to the Northern Pacific Railroad. These parcels were later sold to private companies and stripped for timber. The pattern is now seen as a method of maintaining the sustainability of forested tracts while still enabling logging companies to harvest trees. The forested squares are reserves managed by the U.S. Forest Service. Whitetail Butte has historically been used by the Forest Service as a lookout point for forest fires.

Dense vegetation acts as a natural filtration system for nearby rivers, preserving water quality from soil eroded off deforested hillsides. The Priest River, winding through the scene from top to bottom, is bordered on both sides by a forest buffer to further protect the quality of its water. For nearly a century, the river was used to transport logs. Its function changed in 1968 when the river’s main stem was added to a list of “wild and scenic rivers” in order to preserve its “outstanding natural, cultural, and recreational values in a free-flowing condition for the enjoyment of present and future generations.”

 

Image and Information Courtesy NASA!

WDRB Meteorologist Jeremy Kappell

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Snow Timing and Totals

The National Weather Service issued a Winter Weather Advisory yesterday evening for a portion of our viewing area. It is in effect from 4 pm this evening until 1 am Monday morning (or Sunday night). It is for hazardous travel, including low visibility thanks to increasing winds, with gusts up to 20-25 mph, snow squalls that will drop visibility quickly and slick spots on the roads from accumulating snow. 

1-29 WINTER AD 

There are going to be rounds of snow today. So far the first round is very light flurries, as I expected. There is only a light dusting on cars, grass and decks. This first round was also very isolated while the second round will give more people in Kentuckiana a chance to see snow. 

1-29 RADAR

We could start to see more snow develop in more locations around 2-3 pm and it will start to accumulate. The snow will be likely across the area but still scattered snow showers.  

1-29 AT 3

The snow will continue straight through this evening, as you can see on Future Radar at 5 pm. 

1-29 AT 5

It will start to taper off for some by 8 pm, particularly for the western part of our viewing area. 

1-29 AT 8 PM

Moisture will begin to shut off around 10-11 pm. However, there will still be a few isolated snow showers around the area until 1-2 am. 

1-29 AT 11 PM

The best chance for accumulation is going to be east of I-65. This is where we could see slightly more accumulation. The rule for today is around 1''. West of I-65 has a better chance to see slightly less than that. East is more likely to see 1''. Widespread snowfall accumulations are not expected today because of the nature of the scattered snow showers, rather it will be non-uniform. This lines up for the most part with the NWS' advisory. 

1-29 ACCUMU

Here is a quick summary of everything you need to know about the snow for today and the minor accumulations expected. It shouldn't impact the Monday morning too much. You may want to give yourself extra time, just in case, especially if your commute includes secondary roads that might not be treated as quickly! 

1-29 sunday snow

Jeremey will be on this evening at 10 pm on WDRB News with the latest information regarding the storm and how much snow has fallen. Be sure to tune in and see what is going on at that time! Keep up-to-date on social media as well. The links to my pages are below. 

Katie McGraw's Facebook Page

Katie McGraw's Twitter Page

-Katie McGraw 

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01/28/2017

A Winter Weather Advisory has been Issued!

The National Weather Service out of Louisville has issued a Winter Weather Advisory for parts of the area.

The advisory goes into effect Sunday afternoon at 4 pm ET/3pm CT and includes metro Louisville as well as areas generally along and East of I-65 in Southern Indiana and Kentucky.

Watch

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM EST /3 PM CST/ SUNDAY TO 1 AM EST /MIDNIGHT CST/ MONDAY...

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 4 PM EST /3 PM CST/ SUNDAY TO 1 AM EST /MIDNIGHT CST/ MONDAY.

  • TIMING...MID AFTERNOON TO LATE EVENING SUNDAY
  • MAIN IMPACT...ACCUMULATIONS OF 1 TO 1.5 INCHES RESULTING IN SLICK ROADS AND HAZARDOUS DRIVING CONDITIONS. LOCALIZED 2 INCH AMOUNTS POSSIBLE.
  • OTHER IMPACTS...REDUCED VISIBILITY IN LOCALIZED SNOW BURSTS PRECAUTIONARY/PREPAREDNESS ACTIONS...
  • A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. 

I'll have a full update on what to expect tonight on WDRB News at 10.

WDRB Meteorologist Jeremy Kappell

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Tracking Sunday's Snow: Timing and Impacts

After nearly 18 days of warmth and gloomy weather, today we have woken up to this bright, glowing orb in the sky. THE SUN! But it was also a very chilly start to the day as well, with temps dipping below the freezing point, in the mid to upper 20s. Add in a constant breeze out of the south, some areas (including downtown), had wind chill values in the teens. 

1-28 churchhill downs

Enjoy the sunshine while we've got it! Clouds are already starting to build in from north to south. This will keep temperatures cooler in southern Indiana today. 

1-28 RADAR

All of Kentuckiana will see increasing clouds this afternoon from around  12-2 pm. By 3 pm, we should all be mostly cloudy. Talk about brief sunshine! Highs today will be in the low 40s, but it will feel cooler thanks to that breeze. 

1-28 AT 130 SAT

The rest of the day will be cloudy and we could see a few isolated flurries later this evening and tonight. They shouldn't impact your evening plans too much. 

1-28 AT 830 SAT

Tomorrow is our better shot for not only snow, but snow that sticks! A system from Canada is dropping south and bringing with it the potential for snow. There will be two rounds of snow tomorrow and the cold front will drop our temperatures a few degrees. Our winds will also pick up a bit as well. 

1-28 surf map

There will be a few light snow showers in the morning, this shouldn't amount to much accumulation.

1-28 AT 9 SUN

And there should be a midday break from the snow with just mostly cloudy skies, breezy conditions with highs in the mid 30s. 

1-28 AT 330 SUN

After 5 pm, scattered snow showers return and will continue for the rest of the night and even briefly into Monday morning. Right now we have a 70% chance for snow and you can see on Advancetrak, the snow covers a good portion of our viewing area by 8 pm. 

1-28 AT 8 PM SUN

By 2 am, most of the snow will have tapered off, but there will still be a few lingering flakes overnight. There could be impacts for the morning commute so plan ahead!  

1-28 AT 230 AM MON

In terms of accumulation, we are thinking there could be a coating up to a inch, with the highest totals along and north of the river and east of I-65. South of metro in our KY counties, there would most likely be snow coating the grass and cars. 

1-28 SNOW TOTALS

Be sure to join Jeremy this evening on WDRB News to hear his thoughts and I will have the latest information as snow starts to fly, tomorrow morning from 6-9 on WDRB in the Morning! We will also be posting updates on social media. You can find the links to my pages below! 

Katie McGraw's Facebook Page

Katie McGraw's Twitter Page

-Katie McGraw 

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01/27/2017

NASA Video: A Solar Surface Show

A close up video of a small area of the sun highlighted three active regions, but the one in the center caught NASA's attention the most, on Jan. 20, 2017. For over half a day, this active region sent dark swirls of plasma and bright magnetic arches twisting and turning above it. All the activity in the three areas was driven by competing magnetic forces. The dynamic action was observed in a wavelength of extreme UV light. Watch it in action below:

Video Credit:  Solar Dynamic Observatory, NASA

Katie McGraw's Facebook Page

Katie McGraw's Twitter Page

-Katie McGraw 

IMG_1597

 

Hazardous Travel Outlook

From Jude Redfield....

    Not many travel concerns during the day, BUT PLEASE USE CAUTION AROUND DINNER TIME THROUGH THE EVENING.  A few vigorous snow bursts will fire up late this afternoon and early evening. Where they hit a few slick roads are possible.

    Saturday brings back a few sun breaks with a smaller chance at flurries.

    Sunday is the time to watch for the most POTENTIAL

Headlines

    A clipper system moves in from Manitoba, Canada Sunday afternoon and evening. Since it comes at us from Manitoba I refer to it as a Manitoba Mauler. Same thing as an Alberta Clipper (just not from Alberta)   This will stir up the breeze and crank out a 70% chance for snow showers and bursts.  These will cause quick coverings.  As the sunsets Sunday it will be easy for slick spots to develop on any untreated road.  Most locations will see a dusting to a covering with up to an inch possible in the most intense snow showers. If we continue on this course with this type of system it isn't too far fetched to think some school delays could be possible on Monday morning. 

RadarHelp

    This system is moisture starved so don't expect to shovel, but certainly enough snow to cause headaches. Check in with Katie McGraw and Jeremy Kappell this weekend as they keep all of our social media platforms updated with this snow potential.  -Jude Redfield-

01/25/2017

FIRENADO SWEEPS THE OUTBACK...

Astonishing footage has surfaced of a firenado, also known as a fire whirl, fire devil, fire tornado, or fire twister. This rare phenomenon occurred last month in Watheroo, Australia during a bush fire stoked by warm, windy and dry conditions. Check it out...

 

Video Courtesy: daily news

 

What Causes Firenadoes?

Firenadoes are created in a very similar manner to dust devils. The fire itself is MUCH hotter than the surrounding area so the air over the fire rises very fast. The air around the fire is much cooler and will likely be either sinking or not rising as fast as the air over the fire. This effect is called differential heating and is the exact reason that we get dust devils. The differential heating causes a horizontal roll to develop on the edge of the fire. If this horizontal roll is pushed by wind over the fire, then it will tilt vertical and form these firenadoes. Amazing!

 

 

 

-Rick DeLuca

Rick

https://www.facebook.com/RickDeLucaWeather

Wintry Weather This Weekend. Updating Snow Potential!

It's been a long warm stretch.  Today marked 16 straight days with temperatures remaining above freezing, which is quite remarkable considering this is our coldest part of the year.  The 16 days in a row of above normal freezing temps ties a record that dates all the way back to 1880!  Wow.  

Finally, it appears the cold is on track to return tomorrow and into the weekend with surface temps expected to remain in the 30's for highs over the next few days.

Thursday and Friday

Gfs_t850a_conus_8

In addition to the return of the cold, an active "northwesterly" flow in the jet stream promises to keep things unsettled during the period bringing scattered snow showers to the area Thursday and into Friday.  

Gfs_pr6_slp_t850_ky_7 

Gfs_pr6_slp_t850_ky_10

While temps look to remain cold enough aloft for precip to fall primarily in the form of snow both days, because ground temps are so warm (running in the 40's and low 50's currently) and marginal air temps (30's), accumulations, if any, would be very limited and is not expected to really amount to anything at this point.  

Sunday System

The cold looks to get reinforced over the weekend with temps remain at or below normal for this time of the year.  (Currently forecasting near 40 on Saturday and 30's again on Sunday)

Gfs_t850a_conus_19

In addition to the weekend cold, data is coming into better agreement on the arrival of an upper storm system on Sunday opening the door for another round of wintry precip.

Gfs_z500_vort_conus_19

Right now, this looks like a good candidate for light snow with multiple rounds possible Sunday and into Sunday night.

Gfs_pr6_slp_t850_ky_19

What about accumulations? 

While ground temps will cool by the end of the weekend, precip may still have a hard time accumulating on roadways especially while falling where air temps may remain a degree or two above freezing during the day. 

However, this storm may be able to squeeze out enough snow to accumulate on grassy and elevated surfaces especially heading into Sunday evening as temps cool to below freezing again.  Keep in mind this is not our snow forecast, just a model projection.

Advancetrak3

While most models are keeping accums under an inch, the GFS does show slightly higher amounts by the end of the weekend. However, potentiall this could create a few slick spots Sunday night.  We'll monitor.    

Marc and Rick will have a full update on what to expect this evening on WDRB News. 

WDRB Meteorologist Jeremy Kappell

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