Death Valley records a low of 107°F (41.7°C): a world record

By: Dr. Jeff Masters , 1:31 AM GMT on July 16, 2012

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On Thursday morning, July 12, 2012 the low temperature at Death Valley, California dropped to just 107°F (41.7°C), after hitting a high of 128° (53.3°C) the previous day. Not only does the morning low temperature tie a record for the world's warmest low temperature ever recorded, the average temperature of 117.5°F is the world's warmest 24-hour temperature on record. According to weather records researcher Maximiliano Herrera, the only other place in the world to record a 107°F low temperature was Khasab Airport in the desert nation of Oman on June 27, 2012. The previous U.S. record high minimum temperature may be a 103°F (39.4°C) observed in Death Valley, California in 1970. The NWS lists a July 5, 1918 low temperature of 110°F as the official highest minimum temperature recorded in Death Valley. This temperature is disputed by Mr. Herrera, who says the temperature that night was not monitored and passed from 60°F to 110°F then to 60°F again.


Figure 1. Badwater, Death Valley, California. Wide open spaces, infinite views. What's not to love about this place? Image credit: Wunderphotographer SonomaCountyRAF.

Wednesday's high of 128°F (53.3°C) was the 10th hottest temperature in U.S. history, and the hottest temperature measured in the U.S. since July 18, 2009, when Death Valley recorded another 128° reading. The only hotter temperatures in U.S. history were all measured at Death Valley, the most recent one being the 129° measured on July 6, 2007. The all-time high for Death Valley is the 134° reading of July 10, 1913.

Temperatures have cooled considerably at Death Valley over the weekend, and the forecast for Monday calls for for a downright chilly high of just 110°. That's sure to be a disappointment for the ultramarathoners in the grueling Badwater Ultramarathon, which begins Monday in Death Valley. Covering 135 miles (217km) non-stop from Death Valley to Mt. Whitney, CA, it is the most demanding and extreme running race offered anywhere on the planet. I'm sure they would have liked to have had the distinction of running their race last Wednesday and Thursday, during the hottest 24-hour period ever recorded on the planet!

Jeff Masters

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Quoting FLWeatherFreak91:
No weather modification going on? What a bull shit statement that is. Just do some research...

The US government along with the Chinese have been doing research on weather mod for at LEAST 50 years.

Here is just one of the millions of docs you'd find on line if you weren't so damn ignorant.


not large scale every day like you guys claim

of course there is wxmod, the chinese did it in '08, they are trying to do it on hurricanes.

The point is, there is nothing going on like the stuff you pointed out, where we make massive sheets of clouds in the pacific
Member Since: February 11, 2012 Posts: 0 Comments: 9718
Quoting wxmod:


Actually, to show you how unobservent you are, these clouds are caused by ships, not aircraft, and are at sea level. You need to study infrared photos to see that.I strongly suggest you pour over thousands of satellite photos per day before you comment here.


so i should just leave here and stare at tons of sat photos all day....and then maybe after number 2012 then ill become as delusional as you are?

no thanks

there is no wxmod
Member Since: February 11, 2012 Posts: 0 Comments: 9718
Quoting wxmod:


Actually, to show you how unobservent you are, these clouds are caused by ships, not aircraft, and are at sea level. You need to study infrared photos to see that.I strongly suggest you pour over thousands of satellite photos per day before you comment here.

I had to chuckle at this... First of all, ships don't cause clouds. And as jeffs713 said in comment 424, pouring cream over thousands of satellite photos per day doesn't help you interpret them any better.
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Member Since: September 3, 2011 Posts: 13 Comments: 3468
Cussing in ANY form is not allowed.

Modify your post.

Or watch from the outside, permanently.

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WV Mid Levels


from 8 am NHC Discussion
...CONVECTIVE PRECIPITATION...
SCATTERED MODERATE TO ISOLATED STRONG FROM 8N TO 11N BETWEEN 45W AND 52W... ISOLATED TO WIDELY SCATTERED MODERATE FROM 6N TO 11N TO THE EAST OF 25W...FROM 7N TO 11N BETWEEN 25W AND 40W AND TO THE SOUTH OF 10N BETWEEN 52W AND 60W.
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Quoting wxmod:


Actually, to show you how unobservent you are, these clouds are caused by ships, not aircraft, and are at sea level. You need to study infrared photos to see that.I strongly suggest you pour over thousands of satellite photos per day before you comment here.
Quoting wxmod:


Actually, to show you how unobservent you are, these clouds are caused by ships, not aircraft, and are at sea level. You need to study infrared photos to see that.I strongly suggest you pour over thousands of satellite photos per day before you comment here.


you mean the sheets of clouds?
its kinda typical of oceans.
definitely no wxmod
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Member Since: March 16, 2012 Posts: 127 Comments: 7927
FYI, that air traffic simulation was from 2008. Traffic has likely increased since then.

 Thing is, I actually do think that the amount of contrails (vapor and exhaust) being released into our skies have an impact on cloud formation (suppression and creation) so they do impact weather patterns. I just don't think global geo engineering plans / efforts are nearly as organized and capable as wxmod seems to believe they are.
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Strong non-troipcal low comes off the US
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419.

So you "pour over" thousands of satellite photos daily?

And what do you pour over them? Cream? Doesn't that ruin the photo?
Member Since: August 3, 2008 Posts: 16 Comments: 5869
850 mb vorticity

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413.

The parts I disagree with on your statement are that they are "changing worldwide weather", and "just the facts".

While they could be theoretically be changing the weather, there are other things that we as a species have done that changes the weather much more drastically. Between our propensity to pave over everything, cut down trees, and burn forests to clear land, some intermittent high clouds are not going to make a gigantic impact.

Secondly, showing a set of satellite photos and hypothesizing all of these things from them is far from a proper burden of truth.
Member Since: August 3, 2008 Posts: 16 Comments: 5869
Probably not a hurricane anymore:

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Not so exciting like yesterday.
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419. wxmod
Quoting GeorgiaStormz:


Grid?
I see transpacific flights and N-S flights, if that amounts to a grid, good for you, but its a terrible grid fyi.


Actually, to show you how unobservent you are, these clouds are caused by ships, not aircraft, and are at sea level. You need to study infrared photos to see that.I strongly suggest you pour over thousands of satellite photos per day before you comment here.
Member Since: October 4, 2011 Posts: 0 Comments: 1725

Member Since: March 4, 2008 Posts: 0 Comments: 316
Quoting LargoFl:
surprised no one mentioned this is going on now...


Were you sleeping two weeks ago when the Derecho stretching from Illinois to the Atlantic Coast knocked out power to millions.

WAKE UP~!!
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Quoting FLWeatherFreak91:
Righttt because there are SO many N-S flights over the central Pacific. The Aleutians must be really popular this year...


Various militaries, korea, russia, alaska, Hawaii?
Heck the flights could be from S America.

The point is there is no wx mod going on and there is no grid
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12z GFS was very unenthusiastic about potential East Coast development...



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Quoting RitaEvac:


When 100-200 yr old trees start to die, you got problems


Here's a blog about dead and dying trees worldwide, linking carbon and ozone pollution to this ongoing calamity.
There's an extensive set of links to scientific papers about tropospheric ozone and air pollution caused tree and vegetation mortality.

http://witsendnj.blogspot.com/
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413. wxmod
Quoting jeffs713:

A grid has lines that cross at perpendicular angles. Not parallel straight lines that somehow magically line up as the route between Asia and the US west coast.


The huge man made clouds are thousands of miles long and dozens of miles wide. There are hundreds of them covering a sky area the size of the whole United States. This is from a satellite photo, not from someone's imagination. Whether this is intentional geoengineering or unintentional and cause by shipping, it is still geoengineering by humans on a massive scale. It is changing the world wide weather and the air quality all across the planet. Just the facts.
Member Since: October 4, 2011 Posts: 0 Comments: 1725
Quoting GeorgiaStormz:


Grid?
I see transpacific flights and N-S flights, if that amounts to a grid, good for you, but its a terrible grid fyi.
Righttt because there are SO many N-S flights over the central Pacific. The Aleutians must be really popular this year...
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Is the 1007mb low tropical or non-tropical.
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Quoting LargoFl:
surprised no one mentioned this is going on now...WASHINGTON (AP) - br


Somehow or another, i am getting the impression that this is NOT happening now.
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Quoting LargoFl:
surprised no one mentioned this is going on now...


That was 2 weeks ago....
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Quoting FLWeatherFreak91:
OMG. No one can say those are normal contrails caused by commercial aircraft. That is an obvious grid...



Grid?
I see transpacific flights and N-S flights, if that amounts to a grid, good for you, but its a terrible grid fyi.
Member Since: February 11, 2012 Posts: 0 Comments: 9718
Quoting BahaHurican:
You understand that this is one reason why the wunderblog is so successfull......

I'm not so sure about that actually. As far as I know the subjects discussed on the blog are outside what could be expected of a secondary education--not because of difficulty but because of specialization. Yes, the younger people on the blog contribute and benefit, but kids will come to this blog regardless of their educational background, superior or otherwise, if they have the interest (and internet access). I think it is the desire to learn and witness that makes the blog go.

If the desire is there, you just can't deny it--like Chi Chi Rodriguez learning golf.

"Rodríguez would take a branch from a guava tree and turn it into a golf club. Using a metal can as a "golf ball", he would practice what he had seen the "real" golfers do, teaching himself how to play golf. By the time he was nine years old, he was proficient at golf and in 1947 at the age of 12, he scored a 67."
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IMF: Deal with fiscal cliff and debt ceiling soon
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404. Skyepony (Mod)
Looked at the blob off the east side of FL. Divergence aloft is good. Has little convergence below. Shear is only 5-10kt..but it's vorticity is mostly in the mid to upper levels. It would take time to work down & overall it's embedded in some high pressure. A few models favor some spin but not a closed low or a drop in pressure. I'll stick with my outside chance of an invest but it's not real likely to get named or anything.
Member Since: August 10, 2005 Posts: 161 Comments: 37161
Quoting FLWeatherFreak91:
OMG. No one can say those are normal contrails caused by commercial aircraft. That is an obvious grid...


A grid has lines that cross at perpendicular angles. Not parallel straight lines that somehow magically line up as the route between Asia and the US west coast.
Member Since: August 3, 2008 Posts: 16 Comments: 5869

Still putting out mulitople lows
Member Since: March 16, 2012 Posts: 127 Comments: 7927
401. LargoFl
4:25 PM GMT on July 16, 2012
surprised no one mentioned this is going on now...WASHINGTON (AP) -
Millions of people in a swath of states along the East Coast and farther west went into a third sweltering day without power Monday after a round of summer storms that killed more than a dozen people.

The outages left many to contend with stifling homes and spoiled food over the weekend as temperatures approached or exceeded 100 degrees.

Around 2 million customers from North Carolina to New Jersey and as far west as Illinois were without power Monday morning. And utility officials said the power would likely be out for several more days. Since Friday, severe weather has been blamed for at least 18 deaths, most from trees falling on homes and cars.

The power outages had prompted concerns of traffic problems as commuters took to roads with darkened stoplights. But throughout northern Virginia, there was less traffic than normal in many places Monday as federal workers took advantage of liberal leave that was put in place for the day.

To alleviate traffic congestion around Baltimore and Washington, federal and state officials gave many workers the option of staying home Monday. Maryland's governor also gave state workers wide leeway for staying out of the office.

"It was less traffic," said D.C. resident Rob Lavender, who commuted to Arlington County from the district. "It's more hectic on a regular day."

There were more than 400 signal outages in Maryland on Monday, including more than 330 in hard-hit Montgomery County outside the nation's capital, according to the State Highway Administration. There were 100 signal outages in northern Virginia late Sunday afternoon, and 65 roads were closed, although most were secondary roads.

"If you have to drive or need to drive, leave yourself a lot of extra time," Maryland State Highway Administration spokesman Charlie Gischlar said. "There's going to be delays."

Some drivers resorted to ingenuity to get to work. On a residential street in suburban Falls Church, Va., just outside Washington, downed trees blocked the road on either side. Enterprising neighbors used chain saws to cut a makeshift path on one side, but the other remained completely blocked by a massive oak tree.

"They kind of forgot about us out here," resident Eric Nesson said.

Still, residents took the aggravation with good humor. Posted on the oak tree was a sign saying: "Free firewood you haul." The tree lay across a smashed Ford pickup truck, with a sign reading: "For SALE. Recently lowered."

Meanwhile, Coast Guard officials say they have suspended the search for a man who disappeared early Saturday while boating during the storm off Maryland.

On Sunday night in North Carolina, a 77-year-old man was killed when strong winds collapsed a Pitt County barn where he was parking an all-terrain vehicle, authorities said. In neighboring Beaufort County, a couple was killed when a tree fell on the golf cart they were driving. Officials said trees fell onto dozens of houses, and two hangars were destroyed at an airport in Beaufort County.

The damage was mostly blamed on straight-line winds, which are strong gusts pushed ahead of fast-moving thunderstorms like a wall of wind.

Elsewhere, at least six of the dead were killed in Virginia, including a 90-year-old woman asleep in her bed when a tree slammed into her home. Two young cousins in New Jersey were killed when a tree fell on their tent while camping. Two were killed in Maryland, one in Ohio, one in Kentucky and one in Washington.

In West Virginia, authorities said one person died early Sunday when the all-terrain vehicle they were riding hit a tree that had fallen over a road.

For survivors, it was a challenge to stay cool over the weekend.

From Atlanta to Baltimore, temperatures approached or exceeded triple digits. Atlanta set a record with a high of 105 degrees, while the temperature hit 99 at Ronald Reagan Washington National Airport just outside the nation's capital. With no air conditioning, officials urged residents to check on their elderly relatives and neighbors. It was tough to find a free pump at gas stations that did have power, and lines of cars snaked around fast-food drive-thrus.

"If we don't get power tonight, we'll have to throw everything away," Susan Fritz, a mother of three, said grimly of her refrigerator and freezer. Fritz came to a library in Bethesda, Md., so her son could do school work. She charged her phone and iPad at her local gym.

Power crews from as far away as Florida and Oklahoma were on their way to the mid-Atlantic region to help get the power back on and the air conditioners running again. Even if people have generators, the gas-run devices often don't have enough power to operate an air conditioner.

And power restoration was spotty: Several people interviewed by The Associated Press said they remained without power even though the lights were on at neighbors' homes across the street. In Maryland, Gov. O'Malley promised he would push utility companies to get electricity restored as quickly as possible.

"No one will have his boot further up Pepco's and BGE's backsides than I will," O'Malley said Sunday afternoon, referring to the two main utilities serving Maryland.

In Waldorf, Md., Charles County emergency officials handed out free 40-pound bags of ice to anyone who needed them. Among the takers was Ann Brown, 47, of Accokeek, Md., who had stayed in a hotel Saturday night because her house was without power.

She went to a cookout in Upper Marlboro, Md., on Saturday after family members decided to cook all the food in the freezer rather than let it go bad.

"Whatever they had, that's what we ate, and it was great," Brown said.

Whether she makes the commute to work Monday will depend entirely on how comfortable the office is.

"If they don't have power, I'm not going. But if they have power, yeah, I'm going in, to be in the air conditioning all day," she said.

------

Associated Press writers Matthew Barakat in Falls Church, Va.; Jessica Gresko in Waldorf, Md.; Stacy A. Anderson in Bethesda, Md.; Steve Szkotak in Lakeside, Va.; Jonathan Drew in Atlanta; and Dan Sewell in Cincinnati contributed to this report.
Member Since: August 6, 2011 Posts: 4 Comments: 36651
400. KEEPEROFTHEGATE (Mod)
4:25 PM GMT on July 16, 2012
--------------------------------------------------- ------------------
Special weather statement for:
City of Toronto
Windsor - Essex - Chatham-Kent
Sarnia - Lambton
Elgin
London - Middlesex
Simcoe - Delhi - Norfolk
Dunnville - Caledonia - Haldimand
Oxford - Brant
Niagara
City of Hamilton
Halton - Peel
York - Durham
Huron - Perth
Waterloo - Wellington
Dufferin - Innisfil
Grey - Bruce
Barrie - Orillia - Midland
Belleville - Quinte - Northumberland
Kingston - Prince Edward
Peterborough - Kawartha Lakes
Stirling - Tweed - South Frontenac
Bancroft - Bon Echo Park
Brockville - Leeds and Grenville
City of Ottawa
Gatineau
Prescott and Russell
Cornwall - Morrisburg
Smiths Falls - Lanark - Sharbot Lake
Parry Sound - Muskoka
Haliburton
Renfrew - Pembroke - Barry's Bay
Algonquin
Burk's Falls - Bayfield Inlet.

------------------------------------------------- --------------------
==discussion==
The latest stretch of above normal temperatures in Southern Ontario
is forecast to continue for two more days.

Temperatures will climb into the low thirties today and soar into the
33 to 37 range on Tuesday. Tuesday may be the hottest day so far this
year in some spots, especially Toronto.

Humidex values will likely be in the mid thirties in most areas today
but is expected to exceed Environment Canada's advisory threshold of
40 in the extreme southwest. It will likely reach the low forties in
many areas on Tuesday, with humidex advisories issued accordingly.

A return to seasonal temperatures and somewhat less humid conditions
are expected on Wednesday.

During times of high heat and humidity, the public, especially those
who are susceptible to heat stress, are advised to stay in an air
conditioned place when possible or seek shady areas, drink Plenty of
water and limit physical outdoor activity.

Please monitor the latest forecasts and warnings from Environment
Canada at WWW.WEATHEROFFICE.GC.CA.


The public is advised to monitor future forecasts and warnings as
warnings may be required or extended.

Please monitor the latest forecasts and warnings from Environment
Canada at www.weatheroffice.gc.ca


End
Member Since: July 15, 2006 Posts: 168 Comments: 53285
399. FLWeatherFreak91
4:21 PM GMT on July 16, 2012
Quoting wxmod:
Full scale geoengineering going on in the Pacific today. Visible satellite photo.

OMG. No one can say those are normal contrails caused by commercial aircraft. That is an obvious grid...

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398. LargoFl
4:20 PM GMT on July 16, 2012
Member Since: August 6, 2011 Posts: 4 Comments: 36651
397. wxchaser97
4:18 PM GMT on July 16, 2012
On July 16, 1980, between the hours of 8:30AM and 9:30AM, a powerful derecho swept through Southeast Lower Michigan. Winds were estimated to be up to 100 mph in Washtenaw county and up to 150 mph in Wayne county. Several observers remarked about the horrid dark green color the sky took on as the squall moved overhead. This storm blew out windows in the Renaissance Center. There was only one reported injury, and it was caused by the wind forcing a woman into a revolving door!Link
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396. LargoFl
4:18 PM GMT on July 16, 2012
.....................................storms just sitting here dumping rain and really Booming thunder, st.pete is getting hit hard, maybe some street flooding soon if this dont move on
Member Since: August 6, 2011 Posts: 4 Comments: 36651
395. jeffs713
4:17 PM GMT on July 16, 2012
Quoting GeorgiaStormz:


i dont see anything but clouds and contrails

According to Wxmod, clouds and contrails are weather modification. You have to wear a certain type of hat to understand the logic behind that.
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394. wxchaser97
4:17 PM GMT on July 16, 2012

From WXYZ in Detroit
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393. KEEPEROFTHEGATE (Mod)
4:15 PM GMT on July 16, 2012
Observed at: Toronto Pearson Int'l Airport
Date: 12:00 PM EDT Monday 16 July 2012
Condition: Partly Cloudy
Pressure: 29.95 inches
Tendency: rising
Visibility: 15 miles
Air Quality Health Index: 3

Temperature: 87.1°F
Dewpoint: 63.1°F
Humidity: 45 %
Wind: WNW 9 mph
Humidex: 97
Member Since: July 15, 2006 Posts: 168 Comments: 53285
392. GeorgiaStormz
4:15 PM GMT on July 16, 2012
Quoting wxmod:
Full scale geoengineering going on in the Pacific today. Visible satellite photo.



i dont see anything but clouds and contrails
Member Since: February 11, 2012 Posts: 0 Comments: 9718
391. dogsgomoo
4:15 PM GMT on July 16, 2012
Quoting BahaHurican:
Trains had been burning coal long before cars got on the road.
Not just trains. All types of industry and general domestic use, especially in urban areas.
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390. LargoFl
4:15 PM GMT on July 16, 2012
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389. Neapolitan
4:14 PM GMT on July 16, 2012
Quoting Skyepony (#377):
North Pole today..
Uh-oh. Santa's going to need hip waders, and he's going to have to trade in his reindeer for a more amphibian type of animal. (The elves, I'm afraid, are out of luck, unless they wear surfers' wetsuits.)
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388. wxchaser97
4:14 PM GMT on July 16, 2012
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387. wxchaser97
4:13 PM GMT on July 16, 2012
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386. wxmod
4:12 PM GMT on July 16, 2012
Full scale geoengineering going on in the Pacific today. Visible satellite photo.

Member Since: October 4, 2011 Posts: 0 Comments: 1725

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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.