Area Forecast Discussion
Issued by NWS Sioux Falls, SD

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000
FXUS63 KFSD 131833
AFDFSD

.SHORT TERM...
ISSUED AT XXX PM CDT MON MAY 13 2013

WARM FRONT CROSSING CONTINUES TO TURN WINDS TO SOUTHWESTERLY AND
THEY SHOULD EVEN GO NORTHWESTERLY FOR A SPELL IN OUR NORTHWEST...BUT
DURING THE NIGHT UNDER TEMPORARILY RELAXED GRADIENT THEY SHOULD
REVERT TO S TO SW. OTHERWISE THE HIGH CLOUDS WHICH ARE MARGINALLY
DENSE WILL DECREASE THROUGH THE EVENING AND SKIES SHOULD GO MOSTLY
CLEAR. LOW TEMPERATURES SHOULD BE IN LINE WITH WHAT WE HAVE BEEN
CARRYING. THE RELAXED GRADIENT AND CLEARING SKIES SHOULD ALLOW
COOLING TO THE MID 50S TO LOWER 60S...MILD OF COURSE BUT WITH MORE
WIND THEY COULD HANG QUITE A BIT WARMER IN THIS WARMING AIR. TUESDAY
SHOULD NO SEE TOO MUCH OF AN INCREASE IN CLOUDS MOST OF THE DAY
THOUGH SOME HIGH AND MID CLOUDS LIKELY ESPECIALLY NORTH. DESPITE
SOME MOISTURE INCREASE AS THE COLD FRONT ARRIVES...THE AIR WILL BE
TOO DRY FOR EXTENSIVE CLOUD COVER OR CONVECTION. THE SOUTHWEST WINDS
WILL PICK UP PRETTY WELL AHEAD OF THE FRONT...AND THE NORTHWEST
WINDS WHICH ARRIVE BEHIND THE FRONT WILL ALSO BE FAIRLY STRONG. DO
NOT FORESEE A WIND ADVISORY AT THIS POINT BUT FIRE WEATHER WILL BE
AFFECTED...SEE THAT SECTION. TEMPERATURES WILL BE CLOSE TO WHAT WE
HAVE BEEN GOING FOR WITH THE REAL HOT WEATHER SOUTHEAST...THOUGH
FEEL WE HAVE BEEN KEEPING THE AREA BEHIND THE FRONT A TAD TOO COOL
CONSIDERING THE MIXING FACTOR. STILL ADDS UP TO MID 80S NORTHWEST TO
MID 90S SOUTHEAST.

&&

.FIRE WEATHER...
ISSUED AT 1023 AM CDT MON MAY 13 2013

RED FLAG WARNING HAS BEEN ISSUED FOR SOUTHWEST MN PART OF AND
NORTHWEST IA FOR THIS AFTERNOON AND CONTINUES UNTIL 6 PM CDT. THE
STRONG WINDS AND LOW RELATIVE HUMIDITIES WILL BE A PROBLEM AGAIN
TUESDAY...ONLY OVER ALL OF THE AREA. THE HIGHER DEW POINTS TUESDAY
WILL BE MORE THAN COMPENSATED FOR BY THE VERY WARM TO HOT
TEMPERATURES. THERE COULD BE SOMEWHAT OF A SLIGHT LULL NEAR THE
FRONT IN THE SHIFTING ZONE BUT FEEL THE WINDS WILL BE HIGH ENOUGH
CONTINUOUSLY ENOUGH TO UPGRADE THE FIRE WEATHER WATCH TO A RED FLAG
WARNING. THIS WILL BE FOR THE SAME TIME PERIOD THE WATCH WAS FOR. WE
HAVE ALREADY HAD FIRE ACTIVITY IN SOUTHWEST MN THIS AFTERNOON AND
THE SAME COULD HAPPEN ANYWHERE TUESDAY. RECENT GREENING OF GRASSES
HAS BEEN AT LOW LEVELS AND FIRES MAY NOT BE REAL QUICK TO
START...BUT MAY SPREAD VERY QUICKLY IN THE LINGERING DORMANT TALL
GRASSES.

&&









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