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July 2012 Observations and Discussions


NEG NAO

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yeah, obviously it appears we will be pretty hot the first two weeks, of course it cannot stay like that forever but it would take some serious cool departure in the last two weeks of the month and I am not buying that as its too early to really know whats going to happen

Going to be interesting to see if our heatwave continues or breaks into another seperate heat wave later this week. I just vote for one continuous. Going to be close call for 90 today through Wednesday.

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Well he can be right and it still be hot the rest of july/aug, if for example a majority of sites rack up 100 (+ ) readings between the 4th and 8th which looks potentially reord criteria. That would make the period the hottest of the summer. Latest guidnace now inching the area into record highs 7/6 7/8.

Well if the 2nd half of the month is warmer then normal then I would be wrong but I'm confident it will end up near to slightly below. August could be below normal. Developing Niño and positive NAO in the past have lead to a much cooler 2nd half of summer.

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Well if the 2nd half of the month is warmer then normal then I would be wrong but I'm confident it will end up near to slightly below. August could be below normal. Developing Niño and positive NAO in the past have lead to a much cooler 2nd half of summer.

I was talking about your call for the hottest weather of the sumer which I think may occur on Fri - Sun (7/6 - 7/8) I dont think July will finish below normal. I think we start to see the atlantic ridge build west by mid/later in the month keeping us above normal/humid.

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Going to be interesting to see if our heatwave continues or breaks into another seperate heat wave later this week. I just vote for one continuous. Going to be close call for 90 today through Wednesday.

today is the biggest challenge to keeping up the streak... 90 looks easily attainable tue-sat

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http://www.wunderground.com/DisplayDisc.asp?DiscussionCode=LOT&StateCode=IL&SafeCityName=Chicago

Models continue to differ in potential for back door lake enhanced

front sneaking in late Wednesday afternoon into Wednesday night. If this

occurs ample instability and limited capping could allow for

explosive T-storm development along it late Wednesday PM into Wednesday

evening. Potential for thunderstorms and lake enhanced cooling raises

some doubts in forecast for temperatures Thursday...but even more aggressive

NAM heats things back up quickly so day shift will probably need

to extend advisory into Thursday and probably go with a heat

warning for Chicago. Friday looks to be an absolute scorcher with

European model (ecmwf) still painting a scenario that would result in Chicago

making a run at all time record high of 105 as 925mb temperatures climb

into the lower 30s. Frontal passage Friday night should put an end

to the intense heat though temperatures look to remain above average

through the weekend.

Its Worth noting the current forecast has highs reaching 100f in

Chicago today through Friday at o'hare...if by some chance this

forecast actually pans out then it would be the first time in

recorded history that the official observation site for Chicago

would see 4 triple digit days in a row.

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The one i want it to be nice....hate relaying on afternoon sun....big bbq tomorrow

cloud will keep a lid on the heat--clouds in July are not like it is in June where it sometimes means the difference b/w a 70 degree day and an 80 degree day...you're getting to 80 or better tomorrow regardless....

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http://www.wundergro...ityName=Chicago

Models continue to differ in potential for back door lake enhanced

front sneaking in late Wednesday afternoon into Wednesday night. If this

occurs ample instability and limited capping could allow for

explosive T-storm development along it late Wednesday PM into Wednesday

evening. Potential for thunderstorms and lake enhanced cooling raises

some doubts in forecast for temperatures Thursday...but even more aggressive

NAM heats things back up quickly so day shift will probably need

to extend advisory into Thursday and probably go with a heat

warning for Chicago. Friday looks to be an absolute scorcher with

European model (ecmwf) still painting a scenario that would result in Chicago

making a run at all time record high of 105 as 925mb temperatures climb

into the lower 30s. Frontal passage Friday night should put an end

to the intense heat though temperatures look to remain above average

through the weekend.

Its Worth noting the current forecast has highs reaching 100f in

Chicago today through Friday at o'hare...if by some chance this

forecast actually pans out then it would be the first time in

recorded history that the official observation site for Chicago

would see 4 triple digit days in a row.

wow...105! When is this heat going to break? I am looking forward to some cooler/drier weather at some point soon.

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