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July 2018 General Discussion


Hoosier
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Will Toledo, Detroit, or Fort Wayne bust out of the recent dry spell with upcoming rains in the next 3 days? The NAM and GFS have a reasonable amount of QPF, in the range of 1- 1.5" near Toledo and Fort Wayne, and both have at least some for Detroit. I wonder if the rain amounts will be disappointing. If Toledo gets zero, it will have the #1 driest July.

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 Toledo Airport got 0.81" in the rain gauge today, so it won't get top-5 driest July. According to this radar image, only 0.10" - 0.30" has fallen near the airport, so that's weird. Otherwise, this image shows lots more rain of 1.0" - 2.0" happened near downtown Toledo and northward towards Detroit.  KTDZ, near Walbridge, had 0.97" of rain up to 03z (almost midnight). Note: 2.0" might be an overestimation by radar, though. It will be interesting to check CoCoRAHS.

9jzcV0B.jpg

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Sort of interesting spread between ORD and RFD.  Both the high and low were warmer than average at ORD, but both the high and low were cooler than average at RFD.

 

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
734 AM CDT WED AUG 1 2018

...A Look Back at the Climate for the Month of July 2018 for Chicago
and Rockford...

At Chicago, the average high temperature was 85.1 degrees, which is
1.0 degree above normal. The average low temperature was 67.4
degrees, which is 3.5 degrees above normal. The average temperature
for the month was 76.3 degrees which is 2.3 degrees above normal.
During the month of July, 1.14 inches of precipitation were
recorded, which is 2.56 inches below normal.

No records were set for Chicago for the month of July 2018.

One Top Ten Monthly Records:
**7th driest July on record since 1871 with 1.14 inches.


At Rockford, the average high temperature was 83.5 degrees, which is
1.0 degree below normal. The average low temperature was 62.1
degrees, which is 0.9 degrees below normal. The average temperature
for the month was 72.8 degrees, which is 1.0 degree below normal.
During the month of July, 2.38 inches of precipitation were
recorded, which is 1.57 inches below normal.

There were no records for Rockford for the month of July 2018.

No Top Ten Monthly Records.
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As mentioned above in the stats from LOT... July 2018 was the 7th driest July on record for Chicago, with 1.11" of precip.

Driest Julys On Record:
1. 0.22" - 1936
2. 0.42" - 1934
3. 0.58" - 1874
4. 0.60" - 1894
5. 1.05" - 1887
6. 1.10" - 1941
7. 1.11" - 2018
8. 1.29" - 1940
9. 1.32" - 1991
10. 1.33" - 1945

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2 hours ago, beavis1729 said:

^ That's some insane UHI at ORD.  What could be causing that - the recent change in location of the ob site?

The OBS site was moved this year...There is also construction in the vicinity, with the further development of Route 390 and the early development of I-490.

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