Quote:
Originally Posted by Patricius Maximus
The cold fronts are marching through the U.S. like Patton marched through France  .
Let's keep those ULLs coming, preferably intense ones that persist through next autumn and winter. If a ULL as cold and powerful as this one set up over Minnesota in winter, 30F below normal would work out to a high of -20F in northern Minnesota and -10F or so in the south.
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Nice! Thanks.
Quote:
Originally Posted by chicagogeorge
Nearly subzero lows at 850 millibars over the UP of Michigan....
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Awesome to see but feel sorry for those who like warm and summer.
Here's
NWS Deluth latest discussion: Frost has been mentioned
252 PM CDT SAT JUL 27 2013
.SHORT TERM...THROUGH EARLY SUNDAY EVENING.
THE VERY COLD UPPER LOW OVER FAR NORTHEAST MINNESOTA WAS MOVING
SOUTHWEST THIS AFTERNOON...AND IS FORECAST TO DROP SOUTH THEN EAST
TONIGHT. UNUSUALLY COLD TEMPERATURES COVERED MUCH OF THE NORTHLAND
WITH HIGHS SO FAR MAINLY IN THE FIFTIES...WITH SOME SIXTIES OUT WEST
WITH KBFW/KCKC STILL IN THE FORTIES. BOTH THE KINL/KMPX SOUNDINGS
AND A 10Z THUNDER BAY AMDAR SOUNDING HAD
850MB TEMPERATURES OF 2C
THIS MORNING. THE RECORD LOW MAXIMUM FOR TODAY IN KDLH IS 56F...AND
WE WILL STRUGGLE TO REACH THAT VALUE TODAY. NUMEROUS SHOWERS
CONTINUED TO MOVE SOUTH OVER MUCH OF OUR CWA THIS AFTERNOON...BUT WE
DO EXPECT A DIMINISHING TREND LATER TONIGHT AS THE LOW DROPS SOUTH.
WE DID INCREASE POPS OVER OUR EASTERN AREAS THIS EVENING. PORTIONS
OF ASHLAND AND IRON COUNTIES WILL BE UNDER THE INFLUENCE OF LAKE
PROCESSES WITH A COLDER NORTH-NORTHEAST FLOW OVER THE LAKE WITH
850MB TEMPS FORECAST TO BE AROUND 1C.
LONG TERM...SUNDAY NIGHT THROUGH FRIDAY.
TEMPERATURES WILL START OUT RATHER CHILLY SUN NIGHT/MON MORNING WITH
CLEAR SKIES...CALM WINDS AND A COOL AIR MASS IN PLACE PRODUCING LOWS
IN THE UPPER 30S AND LOWER TO MID 40S ACROSS THE NORTHLAND. THE
COLDEST LOCATIONS WILL BE IN INTERIOR AREAS OF THE ARROWHEAD. PATCHY
FROST IS POSSIBLE IN THESE SHELTERED LOCATIONS DURING THIS TIME...
ALTHOUGH WILL BE MITIGATED BY ONGOING WAA. TEMPERATURES WILL WARM
QUICKLY INTO THE MID TO UPPER 70S MON AFTERNOON...AND THEN REMAIN
STEADY THROUGH THE REST OF THE WEEK WITH HIGHS IN THE 70S AND LOWS
IN THE 50S.
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