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Extreme Heat Threatens Central Plains, Midwest, Eastern U.S.

Posted by feww on July 19, 2011

Deadly heat here to stay

Triple digit temperatures to scorch many areas from central Texas to the Canadian border

Central plains states to remain under heat alerts as the high pressure system responsible for the extreme heat inches toward the East Coast: NWS

Heat Warnings, Watches and Advisories are in effect for parts of 18 central Plains and Midwest states, including:
  • North Dakota, South Dakota, Nebraska, Kansas, Oklahoma, Texas, Minnesota, Iowa, Missouri, Arkansas, Wisconsin, Illinois, Michigan, Indiana, Kentucky and Ohio.

Hazards Assessment Map


NWS has forecast that excessive heat will persist from today through July 29 in all the eastern half of the country except for the Northeast. Click image to enlarge.

U.S. Daily Highest Max Temperature Records set in July 2011

Total of 1,048 records Broken (541), or tied (507) so far. Source: National Climatic Data Center. Click map to enlarge.

US Hazards Map


Maximum Heat Index (ºF) – July 20, 2011 forecast by NWS.


The high pressure ridge will cause high temperatures and high heat indices forecast at higher than 100ºF plus for Mon/Tues, and 105ºF plus for Wed/Thurs/Fri, NWS said.

Prognosis by NWS
A large ridge of high pressure in the upper levels of the Atmosphere remains in place across the central U.S., keeping hot temperatures in place. The hot temperatures combined with high relative humidity will create dangerous heat indices well above 100 degrees over a large portion of the nation. The upper-level ridge will begin to expand eastward this week. By midweek, the hot temperatures will begin to spread into the eastern states,  with high temperatures in the mid to upper 90s arriving in the Mid-Atlantic states as soon as Wednesday. High temperatures in excess of 100 degrees will be possible by Thursday across much of the Mid-Atlantic states and parts of the southeast U.S. these triple-digit temperatures are forecast to remain in place across the eastern U.S. through the weekend.

UPDATE @ 13:00UTC

The heat wave that has been affecting much of the central U.S. continues to produce dangerous levels of heat and  humidity from the Dakotas to Texas and eastward into the Ohio Valley. Heat index values as high as 131°F (55ºC) were reported yesterday and excessive heat watches, warnings and heat advisories are in effect today for a large portion of the central U.S., with temperatures in many locations exceeding 90 degrees, but feeling like 100-110 degrees or higher with the high humidity factored in. The large area of high pressure responsible for the excessive heat will expand eastward over the next several days, with high temperatures in the mid to upper-90s reaching the Mid-Atlantic states by tomorrow, and nearing 100 degrees by Thursday across the Mid-Atlantic and parts of the Southeast. Excessive heat is forecast to grip most of the eastern half of the country — with the exception of the Northeast and southern Florida — through at least the weekend.

Summary of today’s weather for the central United States include:
  • Dangerous heat continues in the Plains and gradually builds toward the East Coast
  • Severe storms possible from the Ohio Valley into the Northeast and northern Mid-Atlantic, and the Northern Plains
  • A heavy rain threat extends from the Upper Texas Coast to the Central Gulf Coast (Source: NWS)

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Killer Heatwave Returns

Posted by feww on July 18, 2011

Deadly Weather Set to Return This Week

A strong upper level ridge of high pressure shown below (500mb heights) will remain entrenched across central US, strengthening during the early part of the week, and moving into the Ohio Valley later in the week, NWS said

The  system will cause potentially deadly weather with heat and humidity prevailing.


Maximum Heat Index (ºF) – July 20, 2011 forecast by NWS.


Chance of Mean Heat Index > 100ºF. Click images to enlarge.


Chance of Mean Heat Index > 105ºF. Click images to enlarge.

 

Hazard Assessment Map: EXCESSIVE HEAT

Oppressive Heat and Humidity Set to Return

Excessive Heat Warnings, Watches and Advisories Issued for 3 Dozen States


The high pressure ridge will cause high temperatures and high heat indices forecast at higher than 100ºF plus for Mon/Tues, and 105ºF plus for Wed/Thurs/Fri, NWS said.

Selected Weather Stories


Synopsis: After a stretch of warm summer like temperatures, the longest stretch of oppressive heat and humidty of the season is upon us.  Temperatures will continue to climb through the 90s by the end of the weekend with dew points remaining elevated.  By the new work week, temperatures are expected to build towards or even past the 100 degree mark in portions of Missouri and are expected to surpass 100 degrees over much of Kansas.  However, humidity values will be lower.  Unfortunately, heat index readings will climb between 105 and 115 each day through next Friday.  Little in the way of nighttime relief is expected due to light winds and temperatures remaining near 80 degrees.

An excessive heat warning is in effect for much of Kansas and Missouri through 7pm Friday.  This is a dangerous situation!  Please check on relatives, neighbors, and friends who may not have resources to stay cool in these conditions.  Drink plenty of fluids and refrain from long periods of outdoor exposure; heat related illnesses can occur in minutes. (Source: NWS)


Sunny, hot and humid conditions with highs up to 105 through at least mid-week. Elevated humidity levels will help create high heat index values, resulting in an Excessive Heat Warning to be in effect across the region into mid-week. NWS

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Deadly Heat Grips Central United States

Posted by feww on July 16, 2011

Killer Heat Already Claimed Dozens of Lives

Deadly heat has taken over weather conditions in the central United States; forecast to last through next week

Heat warnings, watches and advisories have been issued from Texas to the Canadian border and from the High Plains to the western Great Lakes.

Deadly heat already claimed dozens of lives and has now taken over weather conditions in the central United States; forecast to last well into next week. NWS has issued heat warnings, watches and advisories have been issued from Texas to the Canadian border and from the High Plains to the western Great Lakes. Click image to enlarge. 


U.S. Weather Hazards Map. Click image to enter interactive portal.

Weather highlights for the central United States include:

  • Dangerous heat beginning to build from the southern and central Plains to the North
  • Severe weather threat from the central and northern Plains into the Upper Mississippi Valley [Source: NWS]

Excerpts from NWS Weather Forecast

  • Heat and humidity that has stagnated across the southern Plains will spread through the central Plains into the Dakotas, today, bringing a possibility of triple-digit high temperatures through the weekend and into the first half of next week.
    • Excessive Heat Warnings are in effect for parts of Kansas, Missouri, Nebraska, Oklahoma and South Dakota.
    • Heat Advisories are in effect for parts of Oklahoma and Texas.
    • Excessive Heat Watches will go into effect Saturday for portions of the central and northern Plains and the Midwest, including the Dakotas, Illinois, Iowa, Minnesota and Wisconsin.
  • . . . the heat will be relentless over a 16-state area in the heart of the country, lasting into the latter half of next week. The central Plains will see excessive heat continue from July 17-21 and triple-digit highs will bake the southern half of the Atlantic Coast July 19-27.

Official Death Toll

  • As of July 14, 2011, the official toll from the killer heat waves in the U.S. was reported at 39 fatalities.

U.S. Flood Map


U.S. Flood Map: 88 sites were at Major, Moderate or Minor Flooding stage as of 07/16/2011 at 09:01:15 am EDT / 07/16/2011 13:01:15UTC
76 sites weer at Near Flood stage as of 07/16/2011 at 09:01:15 am EDT.

In Mega Heatwaves Could Kill Thousands in the U.S. posted on July 11, 2011 FIRE-EARTH warned:

Deadly heatwaves of unprecedented intensity could strike the U.S. in 2011 and beyond, claiming tens of thousands of lives and affecting millions more: FIRE-EARTH Climate Model

Please cite FIRE-EARTH as the source for above forecast, if you’re copying/re-writing this information.

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Powerful Quake, Strong Aftershocks Hit China’s W. Xizang

Posted by feww on August 31, 2008

Earthquake UPDATE

USGS has reported an earthquake cluster striking Western Xizang area. The 6.7 Mainshock which struck about 225 km (140 miles) NE of Jumla, Nepal on August 25, 2008, was followed by at least five powerful aftershocks measuring magnitude 5 or higher.

A Note of Interest

The mainshock, which struck the area on August 25 at 09:21:59 PM (time at epicenter), was located at 30.893°N, 83.614°E. Those coordinates put the epicenter in the eastern section of Palung Co lake in  the western Xizang province, Tibet Autonomous Region (China).

An examination of the images of Palung Co reveals that the lake, especially its southern section formation, is a large caldera formed either by multiple caldera collapse events or by a large lateral sector collapse. See Google Earth [30° 49’N, 83° 34’E] for visual confirmation.

The discovery gives rise to a number of interesting questions including the date for last eruption in the-now-sunken calderas, and the probability of renewed volcanic eruptions occurring as a result of the powerful seismic activity in the area.



Images: USGS

Quake Magnitude: 6.7
Date & Time:

  • Monday, August 25, 2008 at 13:21:59 UTC
  • Monday, August 25, 2008 at 09:21:59 PM at epicenter

Location: 30.893°N, 83.614°E
Depth: 12 km (7.5 miles) set by location program
Region: WESTERN XIZANG
Distances:

  • 225 km (140 miles) NE of Jumla, Nepal
  • 295 km (185 miles) N of Pokhara, Nepal
  • 370 km (230 miles) NNE of Nepalganj, Nepal
  • 390 km (245 miles) NNW of KATHMANDU, Nepal

Location Uncertainty: horizontal +/- 7.9 km (4.9 miles); depth fixed by location program (Source of data: USGS)

Posted in China, Human-enhanced natural catastrophes, mainshock, Tibet Autonomous Region, Uncategorized | Tagged: , , , , , , , , | 1 Comment »

Mining Sets Off Earthquake in Germany

Posted by feww on February 24, 2008

Strongest regional quake on record

An earthquake caused by coal mining shook the Saarland region of Germany on the French border Saturday. Measuring 4.0 on the Richter scale, the earthquake caused damage to buildings and cut off the electricity supply to the area. Original report

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Earthquake shakes up German coal mining

Posted in coal mining, dirty energy, earthquake, electricity, germany, Human-enhanced natural catastrophes, Human-induced natural catastrophes | 1 Comment »