Moscow hits 102°F; hottest day ever in Finland; 90L a long-range theat
At 4pm local time today in Moscow, Russia, the temperature surpassed 100°F for the first time in recorded history. The high temperature of 100.8°F (37.8°C) recorded at the Moscow Observatory, the official weather location for Moscow, beat Moscow's previous record of 99.5°F (37.5°C), set just three days ago, on July 26. Prior to 2010, Moscow's hottest temperature of all-time was 36.6°C (98.2°F), set in August, 1920. Records in Moscow go back to 1879. Baltschug, another official downtown Moscow weather site, hit an astonishing 102.2°F (39.0°C) today. Finland also recorded its hottest temperature in its history today, when the mercury hit 99°F (37.2°C) at Joensuu. The old (undisputed) record was 95°F (35°C) at Jvaskyla on July 9, 1914. There is little relief in sight, as the latest forecast for Moscow predicts continued highs in the 90s for most of the coming week.
A remarkable year for extreme heat
Finland's new national heat record makes it the fourteenth country (or semi-independent territory) to break an all-time hottest temperature record this year. My source for extreme temperature records is Chris Burt, author of the book Extreme Weather. July in Moscow is easily going to smash the record for hottest month in Moscow's history. By my rough estimate, the temperature has been 18°F (10°C) above average this month. The record hottest July, in 1938, had temperatures 5.3°C above average. Given that the planet as a whole has seen record high temperatures the past four months in a row, it should not be a surprise to see unprecedented heat waves like the Russian heat wave. A record warm planet "loads the dice" in favor of regional heat waves more extreme than anything experienced in recorded history.
Figure 1. Russia's heat wave has contributed to a severe fire season this July. Fires on dry peat bogs east of Moscow are covering the city with smoke as this photo taken yesterday (July 28, 2010.) Tiny red dots indicate hot spots of high surface temperatures associated with fires, and multiple clusters of such dots appear east of Moscow. Dull gray smoke mixes with opaque white clouds east and northeast of the capital city. Air pollution levels in Moscow due to the smoke and smog are so high that residents have been warned to stay home rather than go in to work. Firefighters are battling 340 blazes across Russia covering 86,658 hectares (214,136 acres) amid a drought that led the government to declare weather-related emergencies in 23 crop-producing regions. Agriculture Minister Yelena Skrynnik said on July 23 that the drought had damaged 10.1 million hectares, or 32 percent of all land under cultivation, according to Bloomberg. Raging fires have destroyed hundreds of houses across Russia today and forced mass evacuations in the city of Voronezh, 300 miles southeast of Moscow, according to the Associated Press. Image credit: NASA's Aqua satellite.
Fourteen extreme national high temperature records have been set in 2010
This year now ranks in second place for the most number of countries that have set extreme heat records, according to a list supplied to me today by Chris Burt. The new list removes a number of old disputed records, resulting in the year 2007 surpassing 2010 as the year with the most extreme heat records--fifteen. Keep in mind that the matter of determining extreme records is very difficult, and it is often a judgment call as to whether an old record is reliable or not. The list of countries (225) includes islands that are not independent countries, such as Puerto Rico and Greenland. One-third (33%) of those heat records were set in the past ten years. Ten years have had extreme heat records set at five or more countries on Mr. Burt's list:
2007: 15 records
2010: 14 records
2003: 12 records
2005: 11 records
1998: 9 records
1983: 9 records
2009: 6 records
2000: 5 records
1999: 5 records
1987: 5 records
I highly recommend the book Extreme Weather by Chris Burt for those interested in weather records. I thank Mr. Burt and weather record researchers Maximiliano Herrera and Howard Rainford for their assistance identifying this year's new extreme temperature records. Here's a list of the fourteen nations that have set extreme heat records this year:
Finland recorded its hottest temperature on July 29, 2010, when the mercury hit 99°F (37.2°C) at Joensuu. The old (undisputed) record was 95°F (35°C) at Jvaskyla on July 9, 1914.
Qatar had its hottest temperature in history on July 14, 2010, when the mercury hit 50.4°C (122.7°F) at Doha Airport.
Russia had its hottest temperature in history on July 11, when the mercury rose to 44.0°C (111.2°F) in Yashkul, Kalmykia Republic, in the European portion of Russia near the Kazakhstan border. The previous hottest temperature in Russia (not including the former Soviet republics) was the 43.8°C (110.8°F) reading measured at Alexander Gaj, Kalmykia Republic, on August 6, 1940. The remarkable heat in Russia this year has not been limited just to the European portion of the country--the Asian portion of Russia also recorded its hottest temperature in history this year, a 42.3°C (108.1°F) reading at Belogorsk, near the Amur River border with China. The previous record for the Asian portion of Russia was 41.7°C (107.1°F) at nearby Aksha on July 21, 2004.
Sudan recorded its hottest temperature in its history on June 25 when the mercury rose to 49.6°C (121.3°F) at Dongola. The previous record was 49.5°C (121.1°F) set in July 1987 in Aba Hamed.
Niger tied its record for hottest day in history on June 22, 2010, when the temperature reached 47.1°C (116.8°F) at Bilma. That record stood for just one day, as Bilma broke the record again on June 23, when the mercury topped out at 48.2°C (118.8°F). The previous record was 47.1°C on May 24, 1998, also at Bilma.
Saudi Arabia had its hottest temperature ever on June 22, 2010, with a reading of 52.0°C (125.6°F) in Jeddah, the second largest city in Saudi Arabia. The previous record was 51.7°C (125.1°F), at Abqaiq, date unknown. The record heat was accompanied by a sandstorm, which caused eight power plants to go offline, resulting in blackouts to several Saudi cities.
Chad had its hottest day in history on June 22, 2010, when the temperature reached 47.6°C (117.7°F) at Faya. The previous record was 47.4°C (117.3°F) at Faya on June 3 and June 9, 1961.
Kuwait recorded its hottest temperature in history on June 15 in Abdaly, according to the Kuwait Met office. The mercury hit 52.6°C (126.7°F). Kuwait's previous all-time hottest temperature was 51.9°C (125.4°F), on July 27,2007, at Abdaly. Temperatures reached 51°C (123.8°F) in the capital of Kuwait City on June 15, 2010.
Iraq had its hottest day in history on June 14, 2010, when the mercury hit 52.0°C (125.6°F) in Basra. Iraq's previous record was 51.7°C (125.1°F) set August 8, 1937, in Ash Shu'aybah.
Pakistan had its hottest temperature in history on May 26, when the mercury hit an astonishing 53.5°C (128.3°F) at the town of MohenjuDaro, according to the Pakistani Meteorological Department. While this temperature reading must be reviewed by the World Meteorological Organization (WMO) for authenticity, not only is the 128.3°F reading the hottest temperature ever recorded in Pakistan, it is the hottest reliably measured temperature ever recorded on the continent of Asia.
Myanmar (Burma) had its hottest temperature in its recorded history on May 12, when the mercury hit 47°C (116.6°F) in Myinmu, according to the Myanmar Department of Meteorology and Hydrology. Myanmar's previous hottest temperature was 45.8°C (114.4°F) at Minbu, Magwe division on May 9, 1998. According to Chris Burt, author of the authoritative weather records book Extreme Weather, the 47°C measured this year is the hottest temperature in Southeast Asia history.
Ascention Island (St. Helena, a U.K. Territory) had its hottest temperature in history on March 25, 2010, when the mercury hit 34.9°C (94.8°C) at Georgetown. The previous record was 34.0°C (93.2°F) at Georgetown in April 2003, exact day unknown.
The Solomon Islands had their hottest temperature in history on February 1, 2010, when the mercury hit 36.1°C (97°F) at Lata Nendo (Ndeni). The previous record for Solomon Islands was 35.6°C (96.0°F) at Honaiara, date unknown.
Columbia had its hottest temperature in history on January 24, 2010, when Puerto Salgar hit 42.3°C (108°F). The previous record was 42.0°C (107.6°F) at El Salto in March 1988 (exact day unknown).
90L forms in far eastern Atlantic
NHC has designated an area of thunderstorms in the tropical Atlantic as Invest 90L (8.5 N, 30.0 W). Microwave remote sensing suggests there are some decent thunderstorms in 90L, as peak rain rates were around 1 - 2 inches per hour. According to CIMMS wind-shear analyses, 90L is under a moderate 10 - 15 knots of wind shear, and upper level winds over the disturbance are diverging, which creates a vacuum effect that will enhance updrafts and thunderstorm growth. The disturbance is tracking into a broad area of weak shear to the west and northwest. The steering currents for 90L are to the west-northwest, which will move it into this area of weaker shear. The disturbance is at 8°N latitude, which is too close to the Equator to leverage the Earth's spin very well to spin up. As 90L's west-northwest motion carries it farther from the Equator, the additional spin the disturbance gains from the Earth's rotation will aid development, particularly once 90L gets north of 10°N latitude.The Saharan Air Layer with its dust and dry air lurks just to the north of 90L, but the SHIPS model predicts 90L will remain far enough from the dry air over the next five days so that it will not interfere with development.
Figure 2. IR Satellite Composite of 90L taken at 5:40 pm EDT.
Figure 3. Saharan Air Layer analysis courtesy of the University of Wisconsin CIMSS group.
Model Forecasts and Climatology
The latest 2pm EDT (18Z) runs of the GFDL and HWRF models show 90L developing into a hurricane 3 - 5 days from now. These models suggest that 90L will pass well northeast of the Lesser Antilles Islands. The 18Z GFS model develops 90L into a tropical storm about 7 days from now, and forecasts a track through the northern Lesser Antilles Islands 7 - 8 days from now. The 18Z NOGAPS and 12Z ECMWF models show little development of 90L. The GFDL and HWRF models are too aggressive developing 90L, and likely show too much of a northward motion due to excessive depth of the system they portray. The GFS solution, showing a more delayed development and possible threat to the Lesser Antilles Islands is probably more reasonable. Looking at climatology based on research done by Dr. Bob Hart at Florida State University,, 90L has a 36% chance of developing into a tropical cyclone by 2pm Saturday. NHC is putting these odds at 20%. Dr. Hart also has an experimental product showing that historically, about 30% of all tropical cyclones at 90L's current position eventually hit land as a hurricane. Of course, 90L is not yet a tropical cyclone, but these odds suggest that 90L has the potential to become a dangerous Cape Verdes-type hurricane that will affect land.
Next update
I'll have an update by 8pm Friday.
Jeff Masters (with lots of help from Rob Carver on the 90L portion of the post!)
Reader Comments
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Actually, that is not at all what they are saying.
The met community is so backward in the way that they gather and analyze data. They are so sloppy that if they were chefs in a restaurant, the customers would be dying from all sorts of maladies.
It is like comparing the performance of Model T, the Model A, the 1949 Hudson and the 2010 Ferrari and suggesting there is equality in the performance. If the PWS data is any indication as to the sloppiness of the data gathering system, the data analysis that follows is also quite sloppy.
Anyone who writes serious data analysis programs is very aware that the data input and the data manipulation are often skewed by the bias that is brought to the table by the programmer or the person directing the programmer.
Is it not suspicious that almost all of the code for the weather data analysis is conveniently keep secret behind a wall of 'copyright issues'?
Math equations are not copyrighted and the same should be for weather data math equations.
GW might well be true, if it is, then why hide behind copyright issues.
Something stinks to high heaven in the world of met science and it needs to be stopped.
AL, 90, 2010073000, , BEST, 0, 85N, 306W, 20, 1010, DB,
AL, 90, 2010073006, , BEST, 0, 87N, 312W, 20, 1010, DB,
AL, 90, 2010073012, , BEST, 0, 89N, 317W, 20, 1010, DB,
According to that 90L has been moving towards the WNW since last night at a rather slow rate, approximately 5-10mph.
it looks like that, the stronger system will prevail, both systems are so close to each other, it's really just a massive area of disturbed weather.
true, but i think the second wave as a better shot
From the NHC
HOWEVER...A TROPICAL
WAVE THAT JUST MOVED OFF THE COAST OF AFRICA IS PRODUCING A LARGE
AREA OF SHOWERS AND THUNDERSTORMS...AND THESE TWO SYSTEMS COULD
BEGIN TO INTERACT IN A COUPLE OF DAYS.
Nice sentiment, but that sucks the fun out of speculation about a storm's future path. Once the models have all locked in on a storm, we can argue about slight changes in path or intensity, but the basics are already established. At this stage, the tropical storm is still forming and can go just about anywhere.
I agree that people shouldn't be nervous more than a week out from knowing if this will form, at what intensity or where it may make landfall. From the discussion board perspective, this has the strong possibility of kicking off the CV wave season in a big way with an active hurricane 5-days from now.
90L is about 3,387.2 statute miles to the ESE (110°) of Miami, Florida.
"Catch a wave..."
A cat 5 headed towards miami!!!
...What?
(was just joking, gotta say it just in case lol)
If the low is tracked and remains intact, it will remain 90L.
How fast is the wave behind 90l moving. trying to figure when it will catch up to 90l. or is it already interacting with it.
90L.....
Argentina - Cold weather kills thousands of cattle and over 100 people.
http://www.meattradenewsdaily.co.uk/news/200710/argentina___cold_weather_kills_thousands_of_cattle_ and_over__people_.aspx
Lol, I was just joking around, but your explanation is still appreciated because there were probably others that didn't know they could combine.
Argentina - Cold weather kills thousands of cattle and over 100 people.
http://www.meattradenewsdaily.co.uk/news/200710/argentina___cold_weather_kills_thousands_of_cattle_ and_over__people_.aspx
RE:
Climate Change is about extreme weather not just hot or cold, it's winter down there so extreme cold makes sense
I think we've seen the end of invest 90, however look at the huge wave that came off of Africa. What do we notice about that wave, that we haven't seen with others? This wave did not have much convection when it was over the African Continent, and as soon as it emerged off the coast during the early morning hours, the convection exploded in all direction, these are the waves that tend to develop, it appears invest 90 just prepared the way for this one, we really need to keep an eye on this one folks!
Because the heat in Russia has killed approximately 20 times more people than the cold in Argentina.
it would be a new invest
TROPICAL WAVE IS APPROACHING THE CAPE VERDE ISLANDS ALONG 18N21W
TO 8N19W MOVING W NEAR 12KT. THE WAVE LIES AHEAD OF A MOISTURE
SURGE NOTED OFF THE COAST OF AFRICA EVIDENT IN TOTAL
PRECIPITABLE WATER IMAGERY. SCATTERED MODERATE/STRONG CONVECTION
IS FROM 6N-13N BETWEEN 17W-25W.
Atlantic Tropical Weather Discussion
My guess is that when Jeff read this, he noticed the last sentence in the article: "Although impressive these numbers are considered “normal” by Peruvian sanitary authorities for this time of the year"
There's a website I get loops from that appears down right now. Here's another site that updates often...Link
THE ECMWF CONTINUES MOISTURE THROUGH THE WEEK AND DEVELOPS THE TROPICAL WAVE MOVING OFF THE COAST OF AFRICA NOW INTO A TROPICAL SYSTEM AS IT MOVES THROUGH THE EASTERN CARIBBEAN OVER NEXT WEEKEND. PRIOR RUNS OF THE GFS DEVELOPED THE WAVE BUT LEFT IT NORTH OF THE AREA AND THE CURRENT 00Z VERSION DEVELOPS IT AFTER IT PASSES THROUGH THE AREA AS A WAVE WEDNESDAY NIGHT. IT CANNOT BE EMPHASIZED TOO STRONGLY THAT NO MODEL HAS SHOWN CONSISTENCY IN HANDLING THESE SYSTEMS AND CURRENT FORECASTS HAVE BEEN MADE ON THE
BASIS THAT NO TROPICAL CYCLONE WILL FORM UPSTREAM FROM THE LOCAL AREA...BUT THAT THE TROPICAL WAVES MOVING THROUGH THE AREA LATE
NEXT WEEK MAY CONTAIN STRONGER WINDS AND CONSIDERABLE MOISTURE. THERE ARE ALSO SOME DIFFERENCES IN THE POSITIONS OF THE TUTT LOW
THAT DEVELOPS LATE IN THE WEEK. THE ECMWF BREAKS OFF A CIRCULATION AND PASSES IT SOUTHEAST OF THE ISLANDS...WHERE AS THE GFS TENDS TO HOLD PRESSURE WEAKNESS AT UPPER LEVELS IN A MORE FAVORABLE POSITION FOR CONVECTION HERE AND TO OUR NORTH. AS MENTIONED ABOVE...THE CURRENT SOLUTION OF THE GFS SHOWS MANY WAVELETS
PASSING THROUGH THE AREA WEDNESDAY NIGHT THROUGH SATURDAY...EACH BRINGING A PULSE OF ENERGY THAT TENDS TO BRING HEAVIEST RAIN NORTH
OF THE AREA. THIS IS A PLAUSIBLE SOLUTION...BUT WAVES MAY NOT MOVE NORTH OF THE LOCAL AREA AND THERE IS SOME CHANCE THAT THEY WILL STRENGTHEN AS THEY MOVE INTO THE AREA ESPECIALLY IF THEY ARE ABLE TO COALESCE INTO A SINGLE MORE POWERFUL OR COHERENT WAVE.
90L isn't "done", but it looks like it's moving slow enough and the African wave is moving fast enough that they will merge. 90L has a strong low, but no strong convection. African wave has strong convection but no strong low (or at least not as strong as 90L's is).
One thing that might be a negative for development as they're merging is competing vortexes? I dunno. Anyone know how strong the low is with the African wave?
Ah, the conspiracy theory! Yes! That's it! All those scientists toiling away for years are lying! All those data are incorrect! Thousands of climatologists and earth scientists--in fact, about 96% of all of them--are involved in a great cover-up to push through their 'agenda'! I knew it! Meanwhile, the 3% of remaining climatologists who dispute all the science are on the right track! Yes! Even--or especially--the ones working partially or solely for fossil fuel companies! Lawyers for ExxonMobil...spokesmen for the Western Fuels Association...right-wing talk radio hosts...they are the ones with no agenda, the ones who know the true state of things, the ones with absolutely nothing to lose if AGW--as believed--is true!
Seriously?
Something stinks, alright. It's called a warming atmosphere clouded with pollution, and it's high time folks get their heads out of the (tar) sands and see just how far Big Oil, Big Energy--and those who profit off of them--have pulled the wool over their eyes.
NMFC Norfolk Tropical Feed
No Active Tropical Warnings in the Atlantic, Caribbean, or Gulf of Mexico
By Maritime.CDO@navy.mil (NMFC CDO) from Naval Maritime Forecast Center Norfolk Virginia. Published on .
As of Fri 30 Jul 2010 13:30:01Z
2010 Storms
All Active Year
Atlantic
90L.INVEST
East Pacific
97E.INVEST
Central Pacific
West Pacific
94W.INVEST
Indian Ocean
Southern Hemisphere
94S.INVEST
Maybe the cold is not breaking records and it is just cold.
Since I can't force a change on any single person, or the entire blogging community, and I don't want my posts tarnished/ignored by someone who doesn't know the difference between us... anyone have suggestions for a new user name?
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