Iowa (Midwestern USA) Weather - Tornado Alley

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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Fu Manchu » Tue Jun 14, 2011 10:50 pm

Yeah it is a pretty familiar theme that so many of us recognise here in Australia.

Found this today and sums things up pretty well.
http://www.wunderground.com/blog/JeffMa ... rynum=1824

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Iowa (Midwestern USA) Weather - Tornado Alley

Postby Fu Manchu » Fri Jun 24, 2011 11:47 am

Florida rather than mid west but cool pic if crepescular rays.
Image

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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Vinny » Sun Jun 26, 2011 8:37 pm

All I can see is

X Image
Yeppoon Annual Average Rainfall is (BOM) = 982.5mm
2012 Yeppoon 976.8mm
2014:1114.2mm

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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Fu Manchu » Sun Jun 26, 2011 8:50 pm

Ohhhh nnnooooo :(
Sorry Vin, you guys will have to take my word for it that it was a kick arse photo!

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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Vinny » Sun Jun 26, 2011 9:08 pm

You could just upload the photo to a site like Photobucket and then just use the img tag to get it up on here .
Yeppoon Annual Average Rainfall is (BOM) = 982.5mm
2012 Yeppoon 976.8mm
2014:1114.2mm

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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Pete » Sun Jun 26, 2011 9:26 pm

Is this the photo you were talking about Fu?
Image

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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Fu Manchu » Sun Jun 26, 2011 11:29 pm

Um... yep :lol:
It's good isn't it :lol:
Take that you crepescular rays

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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Storm Wolf » Mon Jul 11, 2011 8:57 pm

Tornado warning in Marshall County and Story County, Iowa, 2hr ago. And I'm still in Minnesota, sigh! But nice storm in Minnesota last night. Didn't cool off fast enough to alert us to being ridiculously severe, but it did drop a twister 90 miles West of the Twin Cities where I am lounging in a hotel bed before the drive to Iowa today. Probably a good thing; Tammy's car is outside so thankfully there was no hail.

Flew over a huge thunderstorm (from Vancouver over North Dakota to Minnesota yesterday). Possibly the same one Reed Timmer was on (judging by his Facebook) or an earlier one. Impressive! Will post photos when I can be bothered - hotel bed comfy, remember? Camera is all the way over THERE.
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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Fu Manchu » Mon Jul 11, 2011 9:41 pm

There are many WAWG'ers a bit jealous of you right now :lol:

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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Storm Wolf » Tue Jul 12, 2011 12:50 pm

Fu Manchu wrote:There are many WAWG'ers a bit jealous of you right now :lol:


:D well I just hope we get some amazing storms, though the storm damage today was a bit horrific. Of course, people in Joplin would ask what the eff we were whinging about, but it's still a bit scary.
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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Storm Wolf » Tue Jul 12, 2011 1:10 pm

Update:

Well, we were still in Minnesota today, slow to drive to my friends' home 4 hours away in Iowa. We were eating in a famous car-diner when we got a call from my mate's daughter. She says there has been a heap of damage in Marshalltown, Iowa (where my friends live and I am staying, where I was last year for 6 weeks). One tiny town was totally evacuated. So Tammy calls up her boss and she confirms that the damage is pretty bad. That night, we had seen that Marshall county had a tornado warning/sirens.

With not a lot of information (the news didn't seem to have anything either, not even the website, sigh) on us, we decided to get back home ASAP. We learned that the small town that got evacuated was done so due to a gas leak. We get to Ames, and holy hell! Flattened corn fields, as if someone has just mowed over it. Trees snapped in half, gigantic conifers uprooted, powerlines everywhere, signs snapped in half, slight damage to buildings, a silo on its side (a giant steel one).

Feeling a sense of dread, we got a bunch of photos, deduced that it wasn't tornado damage due to how widespread it was (we're talking bloody miles here, width and length) and pushed on.

Entering Marshalltown, it was a bit of a disaster zone. Similar damage. LOTS of trees, gigantic trashed silos, more flattened cornfields, more power lines down. People queued up at the gas station, crowding Walmart and Hyvee, newspapers difficult to find (found one and it still hadn't reported the damage, I guess at 4am it wasn't even finalised or well known, so we're gonna grab tomorrow's). Power out everywhere. To give some idea, Marshalltown is around the size of Albany I think. 25,000 people?

We quickly regained a sense of relief as we entered the apartment building - success, we had power! Unfortunately, driving around to assess the town's damage told us that most of the town didn't have power. We drove in the dark at some point. There were some freaky scenes. Huge trees across roads. Powerlines with people working desperately to eliminate the immediete danger. Paramedics, ambulances.

Good news: apparently so far, no fatalities or even injuries. Still scary - and when you compare this to a disaster like Joplin and Tuscaloosa, you can't help but feel like this is just some minor itty-bitty damage compared. It wasn't anything I hadn't seen before, but it's a small enough town that it makes an impact, and seeing all those corn fields flattened was eerie, and gigantic trees snapped like twigs or ripped out of the ground by straight-line winds only the strength of an EF-1 tornado. This season seems to have been pretty violent!
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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Storm Wolf » Tue Jul 12, 2011 1:16 pm

For general interest on American storm damage updates (this is for the above storm in particular)

Preliminary Damage Survey Results

NOUS43 KDMX 112158
PNSDMX
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086-
092>097-121000-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
458 PM CDT MON JUL 11 2011

...PRELIMINARY DAMAGE SURVEY RESULTS FOR STORY...MARSHALL AND TAMA
COUNTIES...

THIS STORM SURVEY INVESTIGATION IS STILL ONGOING AND SUBJECT TO
FURTHER COORDINATION WITH LOCAL EMERGENCY MANAGEMENT AGENCIES.

...WIDESPREAD AND EXTREME STRAIGHT LINE WIND EVENT...

THE FOLLOWING IS A PRELIMINARY ASSESSMENT FOR THE DAMAGE THAT
OCCURRED OVER STORY...MARSHALL AND TAMA COUNTIES...OR FROM CENTRAL
INTO EAST CENTRAL IOWA...EARLY IN THE MORNING ON MONDAY...JULY
11...2011.

* EVENT DATE: 07/11/2011.

* ESTIMATED START TIME: APPROXIMATELY 320 AM CDT.

* EVENT TYPE: DERECHO. NO TORNADOES WERE INDICATED DURING THIS
EVENT. THIS PARTICULAR DERECHO BEGAN IN CENTRAL IOWA AND
TRAVELED ACROSS CENTRAL AND EASTERN IOWA...AS WELL AS ACROSS
ILLINOIS...LAKE MICHIGAN...MICHIGAN...AND ENDED IN ONTARIO
CANADA. THIS DERECHO TRAVELED FROM CENTRAL IOWA TO DETROIT
MICHIGAN...OR A DISTANCE OF APPROXIMATELY 550 MILES...OVER THE
TIME SPAN OF NINE HOURS. A DERECHO IS A LONG LIVED...
WIDESPREAD...DAMAGING WIND STORM WHICH IS ASSOCIATED WITH
RAPIDLY MOVING SHOWERS AND THUNDERSTORMS. DERECHOES ARE OFTEN
CURVED OR BOWED IN THEIR SHAPE. WINDS IN DERECHOES CAN EXCEED
100 MPH. THE WINDS ASSOCIATED WITH DERECHOES ARE NOT CONSTANT
AND MAY VARY CONSIDERABLY ALONG THEIR PATHS.

* EVENT LOCATION: BEGAN JUST WEST OF INTERSTATE 35 IN SOUTHERN
STORY AND NORTHERN POLK COUNTIES. CONTINUED EASTWARD INTO
MARSHALL AND TAMA COUNTIES.

* PEAK WIND: THE HIGHEST WINDS WERE AT LEAST 80 TO 105 MPH.

* PATH WIDTH: THE PATH WIDTH OF THE STRONGEST...HIGH-END WINDS
WAS IN TAMA COUNTY AND WAS 5 MILES WIDE. IN ADDITION...THERE WAS
A 10 MILE WIDE PATH OF WIND SPEEDS OF 70 TO 80 MPH. THERE WAS
ALSO A 15 TO 20 MILE WIDE PATH OF WIND SPEEDS OF 60 MPH OR
GREATER. IT SHOULD BE NOTED THAT THE DAMAGE SWATHS FROM THESE
WINDS WERE NEARLY CONTINUOUS...AND EXTENDED FROM SOUTHERN STORY
AND NORTHERN POLK COUNTIES...ACROSS MARSHALL AND TAMA COUNTIES.

* PATH LENGTH: THE DAMAGE SWATHS FROM THESE WINDS WERE NEARLY
CONTINUOUS...AND EXTENDED FROM SOUTHERN STORY AND NORTHERN POLK
COUNTIES...ACROSS MARSHALL AND TAMA COUNTIES.

* INJURIES: NONE HAVE BEEN REPORTED TO THE NATIONAL WEATHER
SERVICE IN DES MOINES THUS FAR.

* FATALITIES: NONE HAVE BEEN REPORTED TO THE NATIONAL WEATHER
SERVICE IN DES MOINES THUS FAR.

* DISCUSSION/DAMAGE: THIS WIND EVENT HAS BEEN THE MOST WIDESPREAD
AND DAMAGING ONE TO AFFECT CENTRAL AND EAST CENTRAL IOWA SINCE
1998. AGAIN...NO TORNADOES WERE INDICATED. THE DAMAGE WAS DUE TO
STRAIGHT LINE WINDS FROM A DERECHOHAVING SAID THAT...THE
STRONGEST WINDS DURING THIS EVENT WERE SIMILAR TO THOSE FOUND IN
AN EF1 TORNADO. THE WIND DAMAGE FROM THIS EVENT WAS MORE
WIDESPREAD THAN THE DAMAGE A TORNADO HOWEVER. EXAMPLES OF THE
NOTABLE WIND SPEEDS FOLLOW AND HAVE BEEN ESTIMATED FROM OBSERVED
DAMAGE. NEAR HUXLEY...96 MPH. MAXWELL...94 MPH. NEAR
MARSHALLTOWN...70 TO 90 MPH (Storm Wolf: That's between 110-140km/h)
. JUST EAST OF GARWIN...105 MPH.
BETWEEN GARWIN AND UNION GROVE STATE PARK...85 TO 97 MPH. JUST
SOUTH OF TRAER...100 MPH. JUST SOUTH AND SOUTHWEST OF
DYSART...105 TO 110 MPH. SOUTH OF DYSART...80 TO 100 MPH.

&&

FOR REFERENCE...THE ENHANCED FUJITA TORNADO SCALE CLASSIFIES
TORNADOES INTO THE FOLLOWING CATEGORIES:

EF0...WIND SPEEDS 65 TO 85 MPH.
EF1...WIND SPEEDS 86 TO 110 MPH.
EF2...WIND SPEEDS 111 TO 135 MPH.
EF3...WIND SPEEDS 136 TO 165 MPH.
EF4...WIND SPEEDS 166 TO 200 MPH.
EF5...WIND SPEEDS GREATER THAN 200 MPH.

$$

ZOGG



(End)


http://www.crh.noaa.gov/news/display_cmsstory.php?wfo=dmx&storyid=70657&source=0
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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Storm Wolf » Mon Jul 18, 2011 1:27 pm

Currently going through a nasty heatwave. Chances of storms Thurs and Friday, I have til Sat morning to view good storms. we're on a heat advisory and alert with a heat index over 100F (Over 37C, doesn't seem like that hot but it's muggy).
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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Storm Wolf » Sat Jul 23, 2011 10:54 am

Just went after a severe thunderstorm heading past Tama county, didn't go in - not equipped to follow it. We met a trained US storm spotter who was on the edge of the road, training another storm spotter. He is a friend of one of my good mates here in Iowa, random. Offered to take me chasing when I come back - yes!

I asked him about the storm. He pointed out some suspicious scud cloud which could begin rotating at any moment, and the storm was showing very good rotation plus said the radar had showed potential for a tornado. Had two cells next to each other, both severe warned. Back home now, getting an extreme lightning show which we also got on the way home! It was getting dark and hence far too dangerous for us untrained people to follow, but I will definitely go with him next time!
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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby silvercloud » Tue Jul 26, 2011 11:16 am

Wooo that sounds awesome Jess. Lucky girl ;)

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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Cmon Aussie Cmon » Tue Jul 26, 2011 4:28 pm

Cheers SW and keep safe.

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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Pete » Sat Mar 03, 2012 7:57 am

Massive tornado outbreak still unfolding in Ohio and Indiana. Chasers just posted this on facebook.
http://www.youtube.com/watch?v=7SPU8cirq-Y

Reed Timmer's chasing too, though he said in his last update that they ran out of gas. So I don't where they're headed now.

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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Pete » Sat Mar 03, 2012 10:05 am

This photo via Dan Gadberry, shared with permission.
Image

From Tornado Chasers:
Image

Again via Dan Gadberry.
Image

Youtube footage.
http://youtu.be/3qa120ncmGo
http://www.youtube.com/watch?v=L8zb4qAVe_s
http://youtu.be/Xc_YHdkNzq0

Multiple vortices.
Image

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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby Pete » Sat Mar 03, 2012 1:44 pm

Hail. :shock:
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Re: Iowa (Midwestern USA) Weather - Tornado Alley

Postby brayden » Sat Mar 03, 2012 4:59 pm

Holy moly :shock:
Image

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