Advection Fog

Advection fog is a type of fog. When warm, moist air moves horizontally across a cold surface, the air is cooled to the dew point, and fog forms because of it. Usually this occurs when the wind blows the moist air over a cold surface like the ocean.  San Francisco is a place where this type of fog occurs often…almost every day.    Here are three examples.  If you’re thinking that this looks like regular fog, the difference is how it is made.

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The cat that ate Beijing

have a meowtastic day 😀

Radiation Fog :D

Fog Radiating from the Earth

Fog Radiating from the Earth

The most important things needed to make radiation fog are really wet soil, light wind, clear skies, and a low afternoon dewpoint. The more things that are present, the more likely you will see fog. Really wet soils continuously put moisture into the air, making sure the dewpoint depression (difference between temperature and dewpoint) will remain low. Light wind reduces the amount of mixing of air near the earth. If winds are light, moisture evaporating from the surface will remain near the surface and not mix with drier air aloft. If wind is calm, expect fog to be very close to the ground or not there. In a calm situation with a low dewpoint depression and moist soils, expect a thick dew or frost instead of radiation fog.

RadFog01

Other kinds of fog in later posts. =^._.^= meow i made it don’t take credit!!!!!

tropical storm Dorian and Flossie

Hello everyone its Leah and right now there are 2 tropical storms. 1 in the Atlantic, 1 in the Pacific. First we’ll be talking about tropical storm Dorian.

Well I’ve been researching and Dorian is having a tough time.  Because there is a lot of dry air around the storm which is weakening the Dorian,  plus all of the vertical wind shear is taking its toll.  I’ve seen satellite pics over the past week and Dorian has lost form to its shape YAY!! for us!  Now tropical storm Dorian will not strengthen to a cat 1 hurricane.  According to the National Hurricane Center.

what it looks like

what it looks like

National Hurricane Center forcast

its path

its path

 

Now I’ll  show you tropical storm Flossie. The tropical storm is 770 miles away from Hilo, Hawaii and is traveling west at 20 miles an hour. 35 mph winds extend 175 miles out from the center, and is supposed to bring heavy rain.  It’s probably going to hit early afternoon Monday.  I’m letting you all know the track may change over a couple of days .

National Hurricane Center forcast

National Hurricane Center forcast

what it looks like

what it looks like

where its hitting hawaii

where its hitting Hawaii

cutekitty

Fun Facts!!! 😀

Cute Cat: Did you know that tropical storm Dorian is the 4 tropical storm of the 2013 Atlantic season?

Leah: No I did not know that Cute Cat thanks for telling me!! 😀

Cute Cat: You’re  welcome Leah!! Glad I could tell you.

 

Who is going to get a WHITE CHRISTMAS?

This year lots of people will get a WHITE CHRISTMAS!  Including Texas… cool right?  I’m looking at the weather forecast right now. Back to the weather… Salt Lake City: snow. Also if you are by high elevation you will get more snow. Up by Richmond, Virginia: rain… this is weird around Houston, Texas because of a severe weather alert and  lots of wind, rain and maybe even  some snow!  The jet stream has dropped down by the panhandle of Texas and the warm air  from the Gulf of Mexico has come up so… when warm air mixes with cold air sometimes makes tornados AHHHHH! NO! Ugh, not so good. Why is the northern part of Texas getting a WHITE CHRISTMAS? Because the earth goes around the sun so sometimes it is close to the sun sometimes it is far away from the sun. We are on the far side of the sun where it is cooler in the north part of the earth.   Wow that was a lot of explaining .  There is also an unnamed storm that will move past Salt Lake City then move down to Oak city. I mean Oklahoma city. Mississippi chance 5 percent for tornados.  Georgia and Florida, 3 percent for tornados. Let’s hope that doesn’t happen.

If you get a chance., let me know if you got a WHITE CHRISTMAS where you live.

2012Xmas

Weather Halos: Sun and Moon

Weather halos are produced by ice crystals high in cirrus clouds 3-6 miles above the earth.  Light passes through ice crystals, appearing as a halo.  When they appear, they are usually seen around the sun or the moon, but might appear elsewhere in the sky.  The can also form around artificial lights like light pole lights.   But the weather needs to be very cold and  ice crystals called “diamond dust” need to be floating in the nearby air.

Diagram of weather halo elements

Diagram of weather halo elements

 

Sun Halo

Sun Halo

moon halo

moon halo

Sun halo from Stockholm, Sweeden

Sun halo from Stockholm, Sweeden

Noonan, ND:  Sun halo with sun dogs

Noonan, ND: Sun halo with sun dogs

Mystery halo from Moscow, Russia.  But not a sun or moon halo.  May be fake

Mystery halo from Moscow, Russia. But not a sun or moon halo. May be fake

Sun halo appears in a tropical climate

Sun halo appears in a tropical climate

 

My idea of a real sun halo

My idea of a real sun halo

 

 

 

 

 

 

 

Seriously! There really is such a thing as Non-Aqueous Rain

Aqueous means water and so since we are talking about non-aqueous rain we are talking about other stuff instead of water falling from the the sky.  For example, there have been reported cases of jellyfish, spiders, toads, birds, fish, even parts of cows falling from the sky.  Sometimes the creatures are frozen in water or torn to pieces when they fall from the sky.  Maybe waterspouts or tornados pick the creatures up, sometimes thousands of feet in the air, then winds carry them away from the area of the storm and then drop them in a place that had no storm.

January 13, 2012 – Lorento, Phillipines – the last known occurrence of Fish falling from the sky.

June 20, 2010 – Rakoczifalva, Hungary – the last sighting of frogs and toads.

1894 – Bath, England – Jellyfish.

July 11, 2007 – Jennings, Louisiana – Worms

April 6, 2007 – Salta Province, Argentina – Spiders

Raining fish in Northern Argentina – 1989

Raining Frogs

Raining Frogs

 

Raining Spiders

Raining Balloons

Well…it could rain balloons…if a bunch of kids let go of their helium filled balloons at the same time.

It’s a balloon party!

 

Winter Storms Athena and Brutus

On November 7th Winter Storm Athena struck the northeastern US. The Weather Channel made it clear in October that they would name major winter storms that have an impact on major population centers.  The November 7, 2012 that struck  the northern east coast was given a name because it occurred following Hurricane Sandy and hit major population centers.  As much as a foot of snow fell in some places and over 10,000 people lost power.

Point Pleasant Beach, NJ November 7, 2012

 

Jenkinson’s Boardwalk, Point Pleasant Beach, NJ… November 8, 2012

On November 11th Winter Storm Bruce hit the northern Rockies, blanketing the region with over a foot of snow.  In some places this was twice the snowfall of all of last year.

Then National Weather Service seems pretty unhappy about the Weather Channel naming storms without their permission…However, it looks like this idea is going to stick.