- Nic is on a roll! Here is his
excellent question about
eyewall replacement
in hurricanes. (4/24/08)
- Nic wants to know about
desertification,
which is a topic that I feel very strongly about.
(4/17/08)
- Nic wants to know
what I think about Global
Warming. (4/17/08)
- Courtenay has a follow-up
question about prevailing winds
and climate. (4/15/08)
- Nic has some really good
questions about the movie
The Day After
Tomorrow. (4/15/08)
- Katy J. ask, "Why does the sky
turn green before a tornado?" That's a great
question--I think that she must have just recently watched
the movie "Twister"! Anyway, here my
quick response, but we're
going to have an episode of the radio show about this next
week, I think. (4/8/08)
- Brian wants to know how it is
possible that it rained for
days and days in Missouri recently when thunderstorms
only last an hour or so. (4/3/08)
- Elly wants to know what a
lenticular cloud is.
This
Google Image Search will help you understand what she is
talking about. (4/3/08)
- I requested that students send
in reports of the weather during their Spring Break trips.
Here's Lydia's report from
South Bend, Indiana, and Lucy's report from
Phoenix, Arizona.
(3/21/08)
- Lydia has done a great job
this semester with her calls to the Audioblog. Today
she wants to know how far
away are objects on the horizon. (3/21/08)
- Divine wants to know what
cloud height has to do with
finding fronts. (3/21/08)
- Brian H. has a question about
pressure tendency that
came up based on something he saw on David Letterman.
(3/21/08)
- Courtney wants to know where
the "probability of precipitation"
numbers comes from. (3/21/08)
- Lydia has a good question
about whether or not we are
always under some kind of front. (3/21/08)
- Dr. Schrage was confused about
Lydia's question about the
diurnal temperature range in Omaha and in Arizona.
(2/25/08)
- Emily has questions about
whether or not sleet and freezing
rain are examples of supercooled water. (2/25/08)
- Lydia noticed
something interesting about
weather maps and she wants to know why it is the way it
is. (2/25/08)
- Emily wants to know what
caused the transition from
rain to snow earlier today. (2/25/08)
- Sarah C. wants to know why salt
makes ice melt. This is actually quite related to
the processes of condensation and evaporation when air is
saturated, too. (2/14/08)
- Sammi also has a question about
how temperature is
influenced by fog. That's really interesting,
Sammi. (2/13/08)
- Sammi learned that the winds in a dust devil are in "cyclostrophic
balance", so now she wants to know what causes
dust devils in general.
(2/13/08)
- Divine learned about condensation in clouds on Tuesday's
class, and now he wants to know what determines the
rain rate. Plus, he's
curious about this business of thundersnow. (2/13/08)
- Emily A. wants to know if locations near large bodies of
water have higher
relative humidities. That's quite interesting,
actually. (2/13/08)
- I feel bad that I originally missed Divine's call about
wind chill, which
actually came in BEFORE all these other calls on that
subject! Sorry about that! (2/9/08)
- Brian H. knows that hydrogen fuel cell technology
doesn't release carbon dioxide into the atmosphere, but it
does release water vapor, which is also a greenhouse gas.
Are hydrogen fuel cells
actually doing more harm than good? (2/9/08)
- Roxie has been watching the Weather Channel (I'm so
proud!) and has a question about something she saw
there--what is the "ceiling"
of the atmosphere? (2/9/08)
- Been cold much lately? Courtney has a follow-up
question about the
wind chill temperature. (1/30/08)
- Sarah C. stumped me with her difficult question about
the disposal of freon.
(1/30/08)
- Lydia wants to know why it
feels colder when the wind is blowing. (1/30/08)
- Emily seems to be concerned about researchers in
Antarctica: are they in
danger from exposure to ultraviolet radiation?
(1/16/08)
- Sabrina wants to know
why some snow is dry and hard to pack while other times
the snow makes good snowballs. (1/16/08)
- Lydia gets this semester's audioblog off to a great
start with a really good question about
production of Freon and the
lifetime of Freon in the atmosphere.
This is the image that I
mention in the response. (1/16/08)
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- The semester's contributions
to The Storm Wrap up with these great images from Katie A.
She writes:
- "The
first
three
pictures are
of the flooding near st. louis...I took the pictures on
my dads personal camera we use for family pics and stuff
and he just came back this weekend and I downloaded them
onto my computer. There should be some tags/descriptions
on some of the pix when you pull them up.
- "The next sequence of
two
photos are ones my dad took when he was deployed to
Greensburg for the F-5 tornado they had last May. I
didn't take them personally, but they are really cool
and was wondering if they counted or not, either way
they're neat.
- "The next photo is a
sink
hole we found shadowing my dad on the same deployment i
took the flood photos.
- "The last photo was taken by
my dad on his first deployment of the year in Kansas for
the severe ice storm. A power line fell over due to the
severe wind and ice damaged it sustained during the storm
earlier this year." (4/25/08)
- What kinds of clouds
are
these, sent in by Emily?
(4/24/08)
- Courtenay calls this picture "Dark
Scary Clouds While Traveling in the Rocky Mountains".
(4/23/08)
- I'm so proud that Caity was
out admiring the clouds
out on the
Creighton
mall! (4/23/08)
- If there was a prize for the
highest-resolution pictures of
stratocumulus clouds,
Elly would win. :-) (4/22/08)
- Students in ATS 113 always
like a good sunset picture, like
this one sent in by Lydia.
(4/22/08)
- There's a lot of subtle
weather going on in these
three
pictures sent in by
Courtenay. (4/21/08)
- I'm not sure what to make of
this picture submitted by
Lydia! :-) (4/18/08)
- Miguel submitted this
HUGE
image file with a picture of a sunset. I didn't
resize the image because I like all of the details.
Miguel wondered what kind of atmospheric optical phenomenon
we are seeing here. I'm pretty sure that these beams
of light are NOT in the atmosphere but rather something to
do with the lens and the settings on the camera.
Miguel: Could you see those beams with your eye, or
just with the camera? (4/18/18)
- Have I really "started
something" by suggesting the folks send me pictures of sun
dogs? Probably. Here's what I've received:
- Marissa (4/17/08)
- Katrina N. knew why they were called sun dogs because
she found the answer in the textbook. (4/17/08)
- Jake found
this link with lots of information about sun dogs.
(4/18/08)
- Courtenay send in 5 (1
2 3
4 5)
pictures with the following explanation: "Here are
some more plane pictures.. I think these look like cumulus
clouds, maybe some stratocumulus..." (4/17/08)
- Here's a fun idea--why don't
YOU tell ME what we are seeing in
these
three
pictures sent in by
Courtenay? (4/15/08)
- Lydia contributed this:
"This is a snow picture of
snow in Ohio my friend sent me. It was taken earlier
this year." Nice. (4/14/08)
- Katrina topped her last
contribution with these great pictures from her
Spring Break Service Trip
to the Pine Ridge
Reservation in South
Dakota. I've been on these trips to Pine Ridge
before, by the way, and I strongly recommend them, if you
ever have a chance to go. (4/7/08)
- Katrina N. says, "Once more,
while I know you appreciate pictures of clouds in the shape
of something specific, I am currently lacking such photos.
However, I do have some
pictures of clouds at my
family's farm right before a
storm, which I found very
pretty." These are GREAT--where is your farm?
(4/7/08)
- I love
this
cartoon that Jake found. (4/3/08)
- Drew sent another message:
"This is a picture of Super
Typhoon Paka. I was in Guam when this hit. The typhoon
destroyed the island. It was quite an experience."
Drew, we need to get you onto the Weather Break radio show
to talk about that! Contact me! (4/3/08)
- According to Drew, "This
is a picture of the weather while I was in Germany for
Spring Break. It was a little warm, but it was rainy and
gray the entire time." I spend a lot of my time in
Germany, and I can vouch for that! (4/3/08)
- I have no idea where Lydia was
heading when she snapped these two pictures (1
2), but it looks a bit
bleak out! :-) (4/3/08)
- In another message, Courtenay
writes, "Over spring/easter break i was able to fond some
old(er) pictures that I could send to the sotrm cellar.
The first one attached is
from the ice storms in central Nebraska in the late fall of
2006. The second
attachment is just of some trees in my backyard last
February that held quite a bit of ice and snow after a storm."
These are awesome! (4/3/08)
- Courtenay writes, "Here
are some fun pictures that I found (on the internet) of
a haboob in Arizona (or
it could be different ones, but they are both from
Arizona). I remember that you had mentioned them in class
one day and i also heard it mentioned on the weather channel
like last summer or something like that, so i was curious as
to what they looked like. I think that the pictures look a
bit daunting and nifty/interesting at the same time."
Firstly, props to you for catching the power vocabulary word
"haboob", which is a type of dust storm that occurs as part
of the outflow of a thunderstorm! (4/3/08)
- Divine sent in four pictures
from his Spring Break service trip to New Orleans.
However, there was some problem with the email message and
only one of the pictures
turned out okay. This one picture, though, really
gives you a sense that the New Orleans area really has a lot
of work to do still. (4/3/08)
- Lydia snapped five pictures (1
2
3
4
5) of clouds over Easter
Break. What kinds of clouds do you think these are?
(4/3/08)
- According to Sabrina, "While I
was driving along I-29 between Omaha and Sioux Falls I saw
clouds formed
along the ground. These
pictures are my attempt to capture the phenomenon."
This is really quite interesting, Sabrina. Clearly,
some kind of fog layer is forming. There are lots of
ways in which fog can form, but I'm guessing that this is an
example of "advection fog", meaning that warm, moist air is
moving over colder ground. The temperatures of the air
fall and the air becomes saturated. These are some of
my favorite pictures ever on The Storm Cellar, so thank you
for sending them. (4/3/08)
- Niki wrote, "I was in Deshler
over Easter weekend. I took
this photo of the only visible damage remaining from the
tornado outbreak in June 2003. Pretty much everything else
has either been demolished or rebuilt." That's
interesting stuff! (4/3/08)
- Divine always somehow manages
to find the SMALLEST
pictures
of
weather
phenomena on the
internet! :-) (3/21/08)
- Niki sent in
this interesting sunset,
taken from her deck. She also wrote, "Here is
a cloud from this evening that
looks to me like an open box." Okay, I have to
admit that I don't see it, but meteorologists are
notoriously bad at finding shapes in clouds!
(03/21/08) UPDATE: Niki sent
a "marked up" version of the
picture, and now I definitely DO see it! Thanks!
- Caitlin wrote, "Here are a
couple of
pictures that I took from
a flight from Omaha to Denver, This is a sweet angle to look
at cumulus clouds from! They look like cotton balls."
I agree; meteorologists also request "window seats" for just
that reason! :-) (3/18/08)
- I'm WAAAYYY behind on posting
pictures that students have sent in, and I apologize for
that. Here's 5
small
pictures from
Hurricane
Katrina, sent in by
Divine. He was inspired to send in these images
because he worked in New Orleans on a Spring Break service
trip. (3/18/08)
- More stuff from Christina K.:
"The first
2 pictures are from
this past fall when a storm was coming into Omaha, taken
from the 9th floor of Swanson. This is one of the angriest
skies I've ever seen! (though I don't think any huge storm
came of it) The third
picture is of a sunrise, taken from the 8th floor of
Swanson. I thought the clouds were interesting because it
looked like there were 2 layers that were completely
different. The fourth
picture was taken from an airplane when I was coming
back from Japan a couple years ago. I used to call clouds
like this "popcorn clouds", but now I know there is a more
technical term. :)" (2/25/08)
- Here's what Christina K. had
to say about these pictures. "This
first picture I took on
a flight between Denver and Burbank, CA. I thought it was
really cool to be between the layers of clouds and be able
to see the difference. The
second and
third were taken on the
same flight, over the Sierra Mountains. I love when there
are patterns in the clouds! The
fourth picture was a
rainy day in Arizona when there were rainbows everywhere.
These pictures were taken at the end of November last year."
(2/25/08)
- Here's what Irene had to say
about these pictures. "I took both of these pictures
on the same day, obviously at different times but on the
first picture I loved how
you could see the layers in the clouds and how it seemed to
be a really nice day even though it was mostly cloudy all
day. On the other picture
you can see the streaks from jets which is what we discussed
in class the other day." Actually, not quite.
What you are seeing on the second picture would be
CONTRAILS, which are caused by jets. What we were
talking about in class were JET STREAMS, which are a weather
features. I'll make sure that we are clear about the
difference in class on Tuesday. (2/25/08)
- Divine sent in more pictures,
this time of tornadoes: 1
2
3
4 (2/25/08)
- Divine has contributed some
really interesting pictures of tornado damage:
1
2
3 Where did these pictures
come from, Divine? Are these the recent storms in the
Midwest? (2/13/08)
- Michelle sent in this
cool picture of a tornado on
the ground, and she wrote "I thought this would be
relevant to what we were discussing in class, about low
pressure systems. this photo was taken right outside of my
friends house one summer during a tornado right outside of
Rockyford, South Dakota." Wait, what? Did your
friend did this picture? That's awesome! Tell us
more! (2/9/08)
- Lydia probably took
these
pictures of clouds herself.
She described the clouds as being "different looking".
I like that--she's interested in the clouds and noticing
them. (2/9/08)
- Irene points out that
this picture was one of the
nicest skies she has ever seen. (1/29/08)
- Lucille sent in this picture
of clouds taken from her
dorm room window. (1/29/08)
- This is interesting.
Laura writes, "These are super cool pictures of clouds I
took while I was digging in Alaska this summer.
One is of Mount Edgecumbe,
an old extinct volcano in view of Sitka (where I was), and
the other was taken while on top of
Harbor Mountain around 11:00pm
because it was around the summer solstice in the far north.
I don't know what these clouds are called, but maybe I'll
learn!" You sure will! Thanks for these
pictures! (1/29/08)
- Katrina writes, "Once more,
while I know you appreciate pictures of clouds in the shape
of something specific, I am currently lacking such photos.
However, I do have some pictures of clouds at my family's
farm right before a storm, which I found very pretty."
Here are her pix: 1
2
3 Where is your family's
farm, Katrina? (1/29/08)
- Holy cow! Michelle sent
in no fewer than NINETEEN pictures of clouds! Here
they are: 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19. It's almost too much of
a good thing! (1/29/08)
- Krissa sent in these two (1
2) pictures of clouds in
Colorado. I love stuff like this; these are EXACTLY
the kinds of things I'm looking for! (1/29/08)
- This is interesting.
Caity writes, "I went to New Orleans last year and I took
this picture of what used to
be a house. It amazing of the destruction of Hurricane
Katrina. This isn't weather necessarily but it's ironic and
it happened because of the Hurricane, so I want to submit it
to the Storm Cellar." (1/29/08)
- Katrina writes: "While I
know you appreciate pictures of clouds in the shape of
something specific, I am currently lacking such photos.
However, I do have some
pictures of clouds
which I found pretty and thus photographed on my last
airplane ride." Actually, Katrina, these pictures are
PERFECT--I love stuff like this! (1/17/08)
- Laura didn't TAKE this
picture, but it is a particularly cool example of an
image of the auroras.
She asked me if it was okay to send in images found online;
as a general rule, I prefer pictures that YOU or YOUR
FRIENDS AND FAMILY took, but if the picture is particularly
relevant to what we are studying at the time, it's not a
problem. Laura also sent in one of
the strangest things I've ever
seen--I'm not sure what to make of this, frankly, but
it's interesting. (1/16/08)
- ATS 113 has barely started and
already we are off to a great start with The Storm Cellar.
Miguel has submitted a number of interesting pictures that
he has taken: (1/16/08)
- Miguel writes:
"Attached are Texas Hill Country autumn storm photos
from Horseshoe Bay, Lake LBJ, west of Austin. In the
black and white the dots above the lightning cloud are
stars. I'm sorry for the poor quality on that one... I
did not have a tripod so its pretty mediocre."
Here they are: 1
2
3 --I think that they
are great!
- Miguel writes that these
are of "daybreak in the Gulf of Mexico and sunset over
the Sacramento bridge." Here they are:
1
2
- Miguel writes that there
are of "Sunrise and rain from 2 blocks southwest of the
Old Market. For the rain I used an old-fashioned flash
bulb technique. The lightning is from northwest of
McGloin hall, visible in the foreground on the right."
These are pretty cool!
1
2
3
4
- Images of
colored lightning
such as this one are always faked. The image was
produced by exposing the film for a long time, placing colored gels in front of the lens at different
intervals.
- Here is a nice picture of
multiple waterspouts. Waterspouts are not a severe
weather phenomenon--they form under ordinary cumulus clouds
under the right conditions.
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