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28 July 2011
Tropical Storm Don Fights Wind Shear
Tropical Storm Don will likely come ashore near Corpus Christi, TX on Friday evening as a tropical storm and not a hurricane. This is really good news, because it means Texas will get some much-needed rain without significant damage. There are several reasons why it is unlikely that Don will become a hurricane, the chief being the wind shear over the storm. Tropical systems like low wind speeds with …
22 July 2011
Friday Science Digest
My daughter suggested I start doing a once a week digest of interesting science news/blog posts from the previous week. So welcome to the first edition! The Guardian has a great piece today about a study the BBC commissioned on its science coverage, and the results come as no surprise to the science community. That said, I still rate the Beeb as one of the more reliable sources of science …
19 July 2011
Plains Heat is Moving East, While Iowa & Minnesota Melt Under Extreme Heat
The intense upper level high responsible for the heat in the Plains will move eastward later this week, with heat indexes over 115 are very possible in the Washington, DC area. There are some signs that the heat will abate somewhat next week, especially east of the Mississippi, but the Southern Plains will continue to bake. I saw an 80+ dewpoint in North Dakota yesterday- amazing. Minneapolis tied their highest all time dewpoint at 81F (27.2C).
14 July 2011
Yes, The Heat is Bad, But It’s Going to Get Worse
The torrid heat is going to get worse next week. Much of the Plains is suffering through the hottest summer since 1980 and Texas is enduring a drought that is now called exceptional. In the Southeast the heat index hit 115° (46C) in Greenville, MS. on Wed. and Poplar Bluff in Mo. beat that with 118° on Monday. The heat is being made much worse in the Eastern U.S. by …
9 July 2011
A Very Hot Wind Is Sweeping Down The Plain
Oklahoma is baking this afternoon! Temps last hour were above 110 at several locations and according to Gene Tyner at the NWS forecast office in Norman: “June was one of the hottest months in recent memory for Oklahoma and the hottest June on record in the west central and southwest part of the state where the average daily maximum temperature was above 100 degrees for the month. The average daily …
7 July 2011
It’s Called A Haboob
In case you have not seen the great haboob that hit Phoenix Tuesday night. It was caused by strong winds (over 55 knots) flowing out of thunderstorms . The video is pretty incredible. Scott Lindstrom has a great post showing the view from GOES of the Arizona storms as well with a nice MCV as a result. What’s an MCV? Read Scott’s post! Physicist Joe Romm has an interesting post …
6 June 2011
Landsat 5 Image of Massachusets Tornado Track And Chile Volcano
What a year it’s been for tornadoes. Look at the track of the deadly tornado that hit near Springfield, Mass. last week. This is from the folks at NASA Earth Observatory. Also… The view of the Chile volcano eruption from the AQUA MODIS sensor
23 May 2011
Deadly Tornado Wrecks Joplin Missouri (UPDATED)
An intense supercell storm spawned a violent tornado that tore through Joplin Missouri around 5:30 PM Sunday evening. The local paper is reporting 24 fatalities and the main hospital in the city took a direct hit. The hospital is being evacuated and patients transferred to nearby facilities. A friend of mine who is a storm chaser pulled 30 people from the rubble near the high school which appears to be …
19 May 2011
EF 5 Tornado Carries Large Sign Over 200 Kilometers
A viewer, who lives in Lincoln County, TN. brought me this sign that she found in her pasture after the April 27 swarm of tornadoes. As you can see, it is a large campaign sign, and it is made of a fairly light plastic. All in all, I would guess it weighs around 1 kg. The sign is over a meter high and around 2 meters in length. So who …
17 May 2011
New NASA Image Shows Tuscaloosa Tornado Path
NASA’s Terra satellite has an instrument called ASTER, which stands for Advanced Space-borne Thermal Emission and Reflection Radiometer. In non-geek that means it can sense infrared and visible light (this allows areas of vegetation to show up very well). Using multiple wavelengths, and even adding and subtracting one from another has allowed some incredible remote sensing images. The shot below has to be the top of the heap up to …
Dan Satterfield has worked as an on air meteorologist for 32 years in Oklahoma, Florida and Alabama. Forecasting weather is Dan's job, but all of Earth Science is his passion. This journal is where Dan writes about things he has too little time for on air. Dan blogs about peer-reviewed Earth science for Junior High level audiences and up.