Chicago and Milwaukee hit 103°; relief coming by Sunday
It was another day of triple-digit heat across the Midwest Thursday, as the nation continued to bake in the intense heat of the record-breaking summer of 2012. Chicago hit 103° on Thursday, just 2° below the city's all-time hottest temperature of 105°, set on July 24, 1934. The Windy City might have exceeded their all-time heat record, but for the fortuitous formation of a small but intense thunderstorm that hit the airport at 2:45 pm. The storm brought a wind gust of 52 mph to the airport and cooled the temperature by 20°. A wind gust of 92 mph was recorded 4 miles offshore over Lake Michigan. Thursday was the hottest day in Chicago since a 104° reading on July 13, 1995. Milwaukee, WI also hit 103° Thursday, which tied for the 3rd hottest temperature in city history. Madison's 104° was their hottest day since 1988, and also tied for the 3rd warmest temperature ever measured in the city. Madison's all-time high is 107°, set July 14, 1936. St. Louis hit 105°, the eighth consecutive day the city has hit triple digits. This streak is now the 3rd longest such streak in city history; the only longer streaks occurred during the Dust Bowl summer of 1936 (streaks of 13 and 9 days.) The current forecast for St. Louis calls for highs of 107 - 108° Friday and Saturday, which will likely bring the city's streak of 100°+ days to ten by week's end. St. Louis' all-time hottest temperature is 115°, set in 1954.
Figure 1. The severe weather map for Friday, July 6, 2012, showed that advisories for extreme heat (pink colors) were posted for portions of 25 states.
The forecast: record heat Friday and Saturday, then relief
More record-breaking triple-digit heat is expected Friday and Saturday across much of the Midwest and Tennessee Valley, but a cold front will move southwards out of Canada on Saturday and Sunday, putting an end to this phase of the great heat wave of 2012. By early next week, temperatures will be near average for most of the eastern 2/3 of the U.S.
Quiet in the Atlantic
There are no threat areas to discuss in the Atlantic, and none of the reliable computer models are developing a tropical cyclone over the next seven days.
Jeff Masters
Reader Comments
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Storm report text
Wow. Not able to use manual html code to make an image link to the storm reports. Or even to post the report image. Usually no problem. OK. Glitchy this morning or... ?
Oops. Just me, on the latter count anyway.
Good prognostication.
I believe Daniel will squeeze out 75 Mph Category 1 status, though nothing considerable will come of him with the inhibitors coming into play within the next 24 hours.
Congratulations.
Should see a Depression from that within the next 48 to 72 hours.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
929 AM EDT FRI JUL 6 2012
.UPDATE...
TODAY...LOW LEVEL RIDGE AXIS...BASED ON CLOUD MOTIONS...IS ABOUT
OVER VERO BEACH...WHICH IS SIMILAR TO YESTERDAY. CANAVERAL SOUNDING
IS SHOWING SOUTH/SOUTHWEST WINDS 5-10 KNOTS IN THE LOWER LEVELS.
LARGE ANTICYCLONE ALOFT CENTERED IN THE MID SECTION OF THE COUNTRY
WAS PROVIDING NORTH/NORTHEAST UPPER LEVEL WINDS. THIS WAS SPREADING
MORE DEBRIS CLOUDS ACROSS THE AREA COMPARED TO YESTERDAY. CANAVERAL
SOUNDING INDICATES TEMPS ALOFT HAVE NOT CHANGED MUCH.
GPS PRECIPITABLE WATER VALUES ACROSS THE FAR NORTH ARE HIGHER THAN
YESTERDAY...BUT THE CANAVERAL SOUNDING IS SIMILAR TO YESTERDAY
(BELOW NORMAL VALUES). THESE LITTLE NUANCES (POCKETS OF
HIGHER/LOWER MOISTURE...DEBRIS CLOUDS...A FEW KNOT LOW LEVEL WIND
DIFFERENCES...ETC.) MAKE DAY TO DAY FORECASTING OF CONVECTION
DIFFICULT.
HAVE MADE SOME MINOR ADJUSTMENTS TO THE GRIDS BUT THERE IS NO
SUBSTANTIAL CHANGE TO THE ONGOING FORECAST WHICH SHOWS SCATTERED
AFTERNOON POPS OVER THE INTERIOR AND NORTH COAST AND 20 PERCENT FROM
THE CAPE SOUTHWARD.
Its vector had changed from 10.4mph(16.7km/h) WNWest to 10.3mph(16.5km/h) WNWest
MaxSusWinds had held steady at 55knots(63mph)102km/h
And minimum pressure had held steady at 995millibars
For those who like to visually track TS.Daniel's path...
HI28 is Pahala :: HI23 is MountainView :: SAN is SanDiego :: CSL is CaboSanLucas
Easternmost half-dot on the connected line-segments is where TD.4E became TS.Daniel
The Easternmost dot on the longest line is TS.Daniel's most recent position
The longest line is a straightline projection through TS.Daniel's 2 most recent positions to the coastline
5July6pmGMT: TS.Daniel was headed toward passage 374miles(602kilometres) South of Hawaii
6July12amGMT: TS.Daniel was headed toward passage 196miles(316kilometres) South of Hawaii
6July6amGMT: TS.Daniel was headed toward passage over HawaiiVolcanoesNationalPark(nearHI28)
6July12pmGMT: TS.Daniel was heading toward passage over LeilaniEstates(nearHI23) in ~10days18hours from now
Copy&paste hi28, hi23, 13.507n155.061w, 16.0613n155.495w, 19.257n155.209w, san, 9n157w, csl, 13.8n109.0w-14.0n110.0w, 14.0n110.0w-14.1n111.2w, 14.1n111.2w-14.3n112.6w, 14.3n112.6w-14.5n113.5w, 14.5n113.5w-14.7n114.4w, 14.5n113.5w-19.431n154.875w into the GreatCircleMapper for more information
The previous mapping for comparison
UW-CIMSS isn't typically very reliable.
ANOTHER VERY HOT DAY IS UNFOLDING ACROSS CENTRAL AND SOUTHEAST
ILLINOIS TODAY...WITH 15Z TEMPS ALREADY WELL INTO THE 90S. MIXING
OCCURRED UP TO NEARLY 750MB YESTERDAY AFTERNOON. TAKING A PARCEL
FROM THAT LEVEL DOWN TO THE SURFACE ON THE 12Z KILX UPPER AIR
SOUNDING YIELDS A MAXIMUM TEMPERATURE OF 102 FOR LINCOLN...WHICH
IS 2 DEGREES WARMER THAN YERSTERDAYS HIGH. GIVEN THE SLIGHTLY
WARMER START TO THE DAY AND EXPECTED FULL SUNSHINE...THINK HIGHS
WILL GENERALLY BE 2 TO 3 DEGREES HOTTER THAN YESTERDAY ACROSS THE
BOARD. AS A RESULT...AM EXPECTING HIGHS IN THE 100 TO 105 DEGREE
RANGE...WITH A FEW SPOTS SOUTH OF I-70 APPROACHING 110. HAVE MADE
SOME ADJUSTMENTS TO HOURLY TEMP/DEWPOINT GRIDS...BUT THESE CHANGES
ARE TOO MINOR TO WARRANT A FULL ZONE UPDATE AT THIS TIME.
Date: 12:00 PM EDT Friday 6 July 2012
Condition: Partly Cloudy
Pressure: 29.91 inches
Tendency: falling
Visibility: 15 miles
Air Quality Health Index: 5
Temperature: 91.9°F
Dewpoint: 62.1°F
Humidity: 37 %
Wind: WNW 11 gust 17 mph
Humidex: 103
More plots here
Met Service of Jamaica
NEWS RELEASE
Thursday, July 5, 2012 – 5:00 p.m.
*** INCREASED SHOWERS STILL EXPECTED THURSDAY NIGHT AND FRIDAY***
A strong Tropical Wave, currently across Hispaniola, is expected to move across Jamaica Thursday night into Friday morning.
While the Wave is across Jamaica, showers and thunderstorms, which may be heavy at times, are likely to affect most parishes but particularly eastern parishes. Expect widespread showers and thunderstorms on Thursday night through Friday morning, with an improvement in weather conditions by Friday afternoon.
Fishers and other marine interests should exercise caution as strong, gusty winds are expected in the vicinity of showers and thunderstorms.
The Meteorological Service will continue to monitor the situation.
vtj/kjg
LOUISIANA...SOUTH MISSISSIPPI AND THE ADJACENT COASTAL WATERS.
.DAY ONE...THIS AFTERNOON AND TONIGHT
NUMEROUS THUNDERSTORMS ARE EXPECTED THIS AFTERNOON. WHILE
ORGANIZED SEVERE WEATHER IS NOT EXPECTED. A FEW OF THE STORMS
COULD BECOME STRONG TO SEVERE...MAINLY DURING THE AFTERNOON AND
EVENING. THE BIGGEST THREATS WILL BE STRONG AND DAMAGING WIND
GUSTS...FREQUENT LIGHTNING...BRIEF HEAVY DOWNPOURS...AND SMALL
HAIL.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
SCATTERED THUNDERSTORMS ARE EXPECTED EACH DAY SATURDAY THROUGH
THURSDAY. ORGANIZED SEVERE WEATHER IS NOT EXPECTED. HOWEVER...A
FEW ISOLATED STORMS COULD BECOME STRONG TO SEVERE...PRODUCING
GUSTY WINDS...SMALL HAIL...FREQUENT LIGHTNING...AND BRIEF HEAVY
DOWNPOURS.
FOR MORE INFORMATION...VISIT OUR WEBSITE. YOU CAN ALSO FOLLOW OUR
OFFICE ON FACEBOOK BY SEARCHING FOR NATIONAL WEATHER SERVICE NEW
ORLEANS OR ON TWITTER BY SEARCHING FOR NWS NEW ORLEANS.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED.
Yah, I went out on a limb there.
Tropical Tidbits Analysis
Wow! The ice is really melting in the arctic.
as of the 3rd of july
passage opens soon
Ah...a bit of witty wordplay with Progster this morning...well done! ;-)
Hey, is it spinning?
Seems to be trending WEST maybe?
Someone should chuck a sonde up.
Two of those reports were me. ;)
Storm knocked out the NEXRAD last night around 12:30 and I'm the lucky individual who was on call. Wish I had a video camera with me! That storm was rediculious!
There's also a naked non-swirl leaving Cuba and approaching the Yucatan. Think I'll stare at that for a while... embarrass it into spinning up.
That has worked befo I do believe.
GOES-13 Low Cloud Product
Its like Orwell' character in "Keep the Aspidistra Flying". He writes a poem called "Mice" and gets a review that states: "shows good promise".
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