Favorite Soundings

ATMS 411/611

October 2010

Homework 6 Part 2

Dianna’s Skew-T: Oakland, CA on Sunday at 5PM

Skew-T: RENO, NV on Monday at 4AM

180 knots = 207 mph

Zach Tolby

Josh Walston

Mark Hausner: ATMS 611 Sounding

Atlanta, GA Mar 15, 2010 Bryan Rae

Tasiilaq: Sue Konkol

Dan McEvoy

Dan McEvoy

J.D. McAlpineHMWK 6 part 2Slick Soundings

Part 1: Beginning of Blizzard and Ice Storm

-Near sat. up to 650 mb

-Whoa jet!

- Mid-level inversionAnd dry: Subsidence!

-Low level Inversion

-Dry overall

J.D. McAlpineHMWK 6 part 2Slick Soundings

Part 2: Middle of Blizzard and Ice Storm

-Severely saturated up to 500 mb

-Balloon disappearsIn crazy 200 knotJet!

-Severe low level shear!

-High PWAT!!

-Ice storm and Blizzard conditions:Strong precip evenWith deep inversion

Brownsville, TXJosh Molzan

Lake Charles, LA, September 26, 1988: Michael Gallaspy

Some Observations…

• Follows dry adiabat at high pressures (up to about 850 hPa)…– Lake Charles is not a particularly dry

place…

• Followed by a small isothermal spell (from about 850 hPa to, say, 775 hPa).

• Then it goes crazy, not particularly following either the dry or moist adiabat.

Pressure (hPa): Mixing Ratio (g/kg): Prec. Water in column (g/m^2): Total (g/m^2):1015 12.96 1983.673469 27814.377551000 11.56 2194.040816Height in one square meter (mm):

981.4 11.45 3949.081633 27.81947.6 11.25 3753.826531Published value (mm):914.9 11.04 3559.836735 26.05883.3 10.83 3679.989796

850 10.61 2944.816327822.8 6.35 1892.040816793.6 3.46 374.244898

783 2.73 473.5714286766 1.49 9.12244898

765.4 1.49 416.5918367738 1.33 358.2857143

711.6 1.18 139.6734694700 1.12 443.4285714

661.2 1.03 44.14285714657 1.02 459

612.9 0.77 352568.1 0.55 382.1938776

500 0.31 40.48979592487.2 0.27 199.4693878414.8 0.11 16.6122449

400 0.09 1.469387755398.4 0.09 14.87755102382.2 0.08 5.06122449

376 0.08 43.75510204322.4 0.12 27.42857143

300 0.14 51.42857143264 0.09 4.224489796

Nick Hobart

Tornado Outbreak: June 17th 2010 in the State of Minnesota

Dan SaucedaATMS 411Homework 6 Problem 210/25/2010

•39 tornadoes on June 17th, 2010 in Minnesota alone. (A new state record)•3 deaths were reported in 3 different cities.•So far in 2010, Minnesota leads the US with the most reported tornadoes.

References

www.cleveland.com/nation/index.ssf/2010/06/tornadoes_in_minnesota_kill_tw.html

http://stormdamagerepairmn.wordpress.com/2010/06/

http://weather.uwyo.edu/upperair/sounding.html

https://biodork.wordpress.com/2010/06/18/minnesota-tornado-outbreak/

Ben Hatchett

Thermal Wind Imbalance

Stephen Bone