Thursday, July 16, 2015

A vortex has been displaced off Antarctica over southeast Australia.

July 16, 2015
1632z
MTSAT Water Vapor Loop (click here for loop)

July 16, 2015

RESIDENTS across Australia’s southeast (click here) have woken to sub-zero temperatures and snow, as the latest icy blast brings new severe weather warnings.
Locals in Orange and other Central Tablelands towns have taken to social media posting photos of the second heavy snowfall in a week.
At 9am the temperature in Orange had yet to reach 1C with a maximum expected of only 4C.
Other towns that have seen, or are expecting snow today, include Bathurst, Lithgow, Blackheath, Armidale, Glen Innes and Guyra.

A skier makes the most of a 70cm snow dump at Thredbo in NSW with the coldest weather for 15 years forecast across much of Australia’s eastern half. Photograph: Ben Hemmings/Thredbo Resort 

12 July 2015
By Oliver Milman

...The alpine regions of Victoria and New South Wales (click here) have experienced significant snowfall at elevations as low as 600m, with blizzard conditions and strong winds forecast for Sunday.
Snow has dusted areas across NSW, such as the city of Orange, in the state’s central west, and is anticipated as far north as the southern reaches of Queensland until Monday. Snow and sleet are expected on Sunday and Monday in areas above 800 metres in the granite belt, a region that includes the Darling Downs.
Chilly conditions have swept across the interior of NSW, with the city of Dubbo experiencing temperatures of 4.9C early on Sunday. Sydney has been a little warmer, at 13C by midday on Sunday, although thunderstorms are gathering off the coast. Brisbane’s temperature is expected to be about 11C on Sunday.
In Victoria, temperatures at Mount Hotham plunged to minus 6C, with blizzard conditions set to hit the area. Further south, Melbourne experienced wind and rain, waking to temperatures of about 7C. Canberra’s temperature on Sunday hovered around 6C....

The northern hemisphere is experiencing a different extreme weather. 

Below is a shelf cloud.

July 11, 2015
Jacksonville, Illinois

Timing. (click here) Intense heat (and humidity) will be the big story into the mid and lafe afternoon hours, with a heat index in the Twin Cities approaching 100F by 4 PM. I expect a high near 90, maybe low 90s, but the high dew points (mid to upper 70s?) is what will crank up the heat index to obnoxious levels. A few isolated supercells out ahead of the main squall line may spin up tornadoes around the dinner hour, especially north/west of MSP. Most of us will see a line of severe storms after 7 or 8 PM capable of hail and straight-line winds, along with frequent lightning. I envision a few power outages early tonight, along with serious hail-dings and some wind-related damage. Source: Twin Cities National Weather Service.

July 13, 2015
Indianapolis, Indiana

BRAINERD, Minn. - Forecasters (click here) say at least four unconfirmed tornadoes may have touched down in western Minnesota when strong storms moved through the state.Sunday's hot, sticky weather gave way to storms that toppled trees and power lines. National Weather Service meteorologist Jennifer Ritterling said Monday the four unconfirmed tornadoes were in Grant, Wilkin and Otter Tail counties....

There was primarily heat on July 12 reported though the region. Thunderstorms and not tornadoes although there were tornadoes warnings. Tornadoes occurred in clusters on July 13, no reports of fatalities. They don't appear to be high velocity tornadoes.

July 13, 2015
Grand Ridge, Illinois

This supercell formed just to the west of Ottawa, IL and moved ESE/SE past Kankakee into Indiana before dissipating. While this storm had great structure and a rotating wall cloud, it just wasn't able to tighten up enough in the low-levels for a tornado to form. It still was a good chase and then I got treated to a nice sunset on the way home.

Opps, that is not an EF1. No precipitation system was stationary. The skies are clear other than the system.

July 13, 2015
Hutchinson, Kansas

There was one (click here) tornado in the United States on Monday, July 13.  It was located in Nickerson, Kan., about 12 miles northwest of Hutchinson, Kan. 

This twister is what is called an LP supercell thunderstorm. The LP stands for “low precipitation.” 
There was hardly any rain, so it was visible from great distances over the flat plains of Kansas. It barely moved and it was over open fields, the best case scenario for a tornado--no damage and no injuries.

There was a rain shadow behind the tornado. Now, this is interesting. 



When were those dual tornadoes last year? 

June 16, 2014. We're past that. That was just about the height of the summer sun traverse.