Dr. Jeff Masters' WunderBlog |
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| Posted by: Dr. Jeff Masters, 2:57 PM GMT on April 13, 2012 | +47 |
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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.
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It's two different vortices.
Looks like Friemont, Iowa
I'm a huge NASCAR fan, and I can confirm that there's a race in Fort Worth, Texas tonight. About 191,000 people is attending the race tonight.
That's this one. Is the wording storng enough?
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN RICE COUNTY UNTIL
545 PM CDT...
AT 533 PM CDT...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO WAS
LOCATED 6 MILES NORTHEAST OF LYONS...AND MOVING NORTHEAST AT 35 MPH.
THIS IS A PARTICULARLY DANGEROUS SITUATION.
HAZARD...DAMAGING TORNADO.
SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO.
IMPACT...MAJOR HOUSE AND BUILDING DAMAGE LIKELY AND COMPLETE
DESTRUCTION POSSIBLE. NUMEROUS TREES SNAPPED. MAJOR POWER
OUTAGES IN PATH OF TORNADO HIGHLY LIKELY. SOME ROADS
POSSIBLY BLOCKED BY TORNADO DEBRIS. COMPLETE DESTRUCTION OF
VEHICLES LIKELY.
LOCATIONS IMPACTED INCLUDE...
GENESEO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPEAT...A LARGE...EXTREMELY DANGEROUS AND POTENTIALLY DEADLY
TORNADO IS ON THE GROUND. TO PROTECT YOUR LIFE...TAKE COVER NOW. MOVE
TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
Another tornado near Medicine Lodge, KS
I hope they dont plan getting back on the road tonight
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
536 PM CDT SAT APR 14 2012
KSC159-142245-
/O.CON.KICT.TO.W.0014.000000T0000Z-120414T2245Z/
RICE KS-
536 PM CDT SAT APR 14 2012
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN RICE COUNTY UNTIL
545 PM CDT...
AT 533 PM CDT...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO WAS
LOCATED 6 MILES NORTHEAST OF LYONS...AND MOVING NORTHEAST AT 35 MPH.
THIS IS A PARTICULARLY DANGEROUS SITUATION.
HAZARD...DAMAGING TORNADO.
SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO.
IMPACT...MAJOR HOUSE AND BUILDING DAMAGE LIKELY AND COMPLETE
DESTRUCTION POSSIBLE. NUMEROUS TREES SNAPPED. MAJOR POWER
OUTAGES IN PATH OF TORNADO HIGHLY LIKELY. SOME ROADS
POSSIBLY BLOCKED BY TORNADO DEBRIS. COMPLETE DESTRUCTION OF
VEHICLES LIKELY.
LOCATIONS IMPACTED INCLUDE...
GENESEO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPEAT...A LARGE...EXTREMELY DANGEROUS AND POTENTIALLY DEADLY
TORNADO IS ON THE GROUND. TO PROTECT YOUR LIFE...TAKE COVER NOW. MOVE
TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3852 9848 3852 9793 3843 9792 3825 9842
3831 9848
TIME...MOT...LOC 2236Z 234DEG 30KT 3844 9813
TORNADO...OBSERVED
TORNADO DAMAGE THREAT...SIGNIFICANT
HAIL...1.75IN
$$
Why does the jet stream winds blow from west to east? Recall from the previous section what the global wind patterns would be like if the earth was not rotating. (The warm air rising at the equator will move toward both poles.) We saw that the earth's rotation divided this circulation into three cells. The earth's rotation is responsible for the jet stream as well.
The motion of the air is not directly north and south but is affected by the momentum the air has as it moves away from the equator. The reason has to do with momentum and how fast a location on or above the Earth moves relative to the Earth's axis.
Your speed relative to the Earth's axis depends on your location. Someone standing on the equator is moving much faster than someone standing on a 45° latitude line. In the graphic (above right) the person at the position on the equator arrives at the yellow line sooner than the other two. Someone standing on a pole is not moving at all (except that he or she would be slowly spinning). The speed of the rotation is great enough to cause you to weigh one pound less at the equator than you would at the north or south pole.
The momentum the air has as it travels around the earth is conserved, which means as the air that's over the equator starts moving toward one of the poles, it keeps its eastward motion constant. The Earth below the air, however, moves slower as that air travels toward the poles. The result is that the air moves faster and faster in an easterly direction (relative to the Earth's surface below) the farther it moves from the equator.
Just wanted to say thanks for the info/updates this past week. I am manning the check-in at church shelter tonight, so keep your observations coming. Obviously, not expecting much in the metro until later.
The new words in the warnings really hit you. I think it's going to prove as a life saver
That's because a different person (Mead) issued this warning. He is like hurricane season's Avila.
Cell that just had the split near Beaver City, NE, now has the area of rotation right over town.
Edit: Oh I see you meant Avila.
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WICHITA KS
543 PM CDT SAT APR 14 2012
THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN ELLSWORTH COUNTY IN CENTRAL KANSAS...
NORTHWESTERN MCPHERSON COUNTY IN CENTRAL KANSAS...
NORTHEASTERN RICE COUNTY IN CENTRAL KANSAS...
SOUTHWESTERN SALINE COUNTY IN CENTRAL KANSAS...
* UNTIL 630 PM CDT
* AT 542 PM CDT...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO
WAS LOCATED 5 MILES SOUTHEAST OF GENESEO...AND MOVING NORTHEAST AT
35 MPH.
THIS IS A PARTICULARLY DANGEROUS SITUATION.
HAZARD...DAMAGING TORNADO.
SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO.
IMPACT...MAJOR HOUSE AND BUILDING DAMAGE LIKELY AND COMPLETE
DESTRUCTION POSSIBLE. NUMEROUS TREES SNAPPED. MAJOR POWER
OUTAGES IN PATH OF TORNADO HIGHLY LIKELY. SOME ROADS
POSSIBLY BLOCKED BY TORNADO DEBRIS. COMPLETE DESTRUCTION
OF VEHICLES LIKELY.
* LOCATIONS IMPACTED INCLUDE...
MARQUETTE AND LINDSBORG.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING THAT
WAS IN EFFECT FOR THE SAME AREA.
&&
LAT...LON 3878 9782 3853 9763 3836 9811 3849 9824
TIME...MOT...LOC 2243Z 236DEG 31KT 3848 9806
TORNADO...OBSERVED
TORNADO DAMAGE THREAT...SIGNIFICANT
HAIL...2.50IN
$$
BILLINGS
I meant Avila xD
Don't have a PDS Warning But you can Tell what they did different from the original non-tested system warnings
_________________________________________________ _______
813
WFUS53 KICT 142236
TORICT
KSC155-142315-
/O.NEW.KICT.TO.W.0015.120414T2236Z-120414T2315Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WICHITA KS
536 PM CDT SAT APR 14 2012
THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A
* TORNADO WARNING FOR...
WESTERN RENO COUNTY IN SOUTH CENTRAL KANSAS...
* UNTIL 615 PM CDT
* AT 533 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 7 MILES NORTHEAST OF TURON...AND MOVING
NORTHEAST AT 40 MPH.
HAZARD...DEVELOPING TORNADO AND HALF DOLLAR SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...SIGNIFICANT HOUSE AND BUILDING DAMAGE POSSIBLE. MOBILE
HOMES COMPLETELY DESTROYED IF HIT. SOME TREES UPROOTED OR
SNAPPED. VEHICLES WILL LIKELY BE THROWN BY TORNADIC WINDS.
* LOCATIONS IMPACTED INCLUDE...
ARLINGTON...ABBYVILLE...PARTRIDGE...NICKERSON...PL EVNA AND
WILLOWBROOK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
THIS STORM HAS A HISTORY OF PRODUCING BRIEF TORNADOES AND FUNNEL
CLOUDS. TAKE COVER IN A BASEMENT OR STORM SHELTER NOW!
LAT...LON 3818 9823 3818 9822 3816 9821 3816 9815
3818 9814 3817 9784 3778 9825 3784 9844
TIME...MOT...LOC 2236Z 222DEG 36KT 3788 9829
TORNADO...RADAR INDICATED
HAIL...1.25IN
KLEINSASSER
Link???
No, it means the current one is too conservative. :P
link???
Much appreciated
Another one is going very, very close to Salina, KS.
Don't you love it when there are advertisement before a video that can save lives
Where is that?
that is at least a EF3 if not higher right now...
which storm is that?
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