Area Forecast Discussion
Issued by NWS Sioux Falls, SD

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

000
FXUS63 KFSD 290345
AFDFSD

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1045 PM CDT TUE JUL 28 2015

.SHORT TERM...(THIS EVENING THROUGH WEDNESDAY)
ISSUED AT 337 PM CDT TUE JUL 28 2015

CLOUD COVER WITH THE COLD FRONT AND VEERING OF SURFACE WINDS TO
SOUTHWESTERLY AHEAD OF THE FRONT APPEAR TO BE PUTTING SOME CLAMPS ON
THE PROSPECT OF STORM REDEVELOPMENT BEFORE ALL SUPPORT MOVES EAST OF
OUR AREA. WITH BOUNDARIES VISIBLE ON RADAR AND VERY HUMID AIR
LINGERING...WILL ALLOW FOR REDEVELOPMENT INTO THE START OF THE
EVENING...WITH THE THREAT OVER BEFORE SUNSET...ONLY IN THE FAR
SOUTHEAST CORNER OF NORTHWEST IOWA...OR THE LITTLE IDA GROVE TO
STORM LAKE/KSLB STRETCH.

THE REST OF THE FORECAST FOR TONIGHT AND WEDNESDAY DEALS SIMPLY WITH
CLEAR SKIES AND PLEASANT TEMPERATURE/HUMIDITY CONDITIONS. HAVE
ALLOWED FOR TEMPERATURES TONIGHT TO COOL A DEGREE OR TWO MORE THAN
WHAT WE HAD BEFORE FOR WEDNESDAY MORNING LOWS. GOOD HEATING WILL
BRING TEMPERATURES INTO THE LOW TO MID 80S WEDNESDAY BUT THE AIR
WILL BE DRY. WEST/NORTHWEST WINDS WILL REACH THE BREEZY CATEGORY
NORTH.

.LONG TERM...(WEDNESDAY NIGHT THROUGH TUESDAY)
ISSUED AT 337 PM CDT TUE JUL 28 2015

A NORTHWEST FLOW ALOFT WILL PREVAIL OVER THE NORTHERN PLAINS FOR
THE FORESEEABLE FUTURE PROVIDING ONLY SKITTISH CHANCES FOR TSRA AND
SEASONABLY MILD TEMPERATURES. IN THE INTERMEDIATE TERM...WE HAVE A
PLEASANT FEW DAYS COMING UP WITH HIGHS PRIMARILY IN THE 80S AND DEW
POINT TEMPERATURES THAT ARE MILD. IN FACT WE HAVE A WEAK REINFORCING
NORTHERLY WIND MOVING THROUGH LATE THURSDAY NIGHT AND FRIDAY MORNING
FOLLOWING A MID LEVEL SHORT WAVE...THEREFORE THE SURFACE WINDS WILL
NOT BECOME SOUTHERLY UNTIL SATURDAY. BUT EVEN ON SATURDAY...DEW
POINT TEMPERATURES ARE ONLY PROJECTED TO BE IN THE LOWER TO MID 60S.

ON SATURDAY NIGHT...THE DETERMINISTIC GFS AND ECMWF HAVE COALESCED
AROUND A SHORT WAVE PASSAGE WHICH HAS BEEN SHOWN BY THESE MODELS OFF
AND ON FOR A FEW DAYS NOW. THEREFORE CHANCE POPS ARE STILL WARRANTED
GENERALLY ALONG AND EAST OF INTERSTATE 29. THEN AFTER THAT CHANCES
FOR RAIN GET SPOTTY AGAIN WITH NO CONSENSUS IN SOLUTIONS. SO
CERTAINLY HIGH POPS ARE NOT WARRANTED THROUGHOUT THE EXTENDED
FORECAST. AS MENTIONED ABOVE...THE NORTHWEST FLOW ALOFT CONTINUES
EARLY NEXT WEEK SO DEW POINT VALUES SHOULD STAY IN THE 60S SUNDAY
THROUGH TUESDAY WITH HIGHS MAINLY IN THE 80S.

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z WEDNESDAY NIGHT)
ISSUED AT 1045 PM CDT TUE JUL 28 2015

VFR CONDITIONS EXPECTED THROUGH THE TAF PERIOD.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...NONE.
MN...NONE.
IA...NONE.
NE...NONE.
&&

$$

SHORT TERM...
LONG TERM...MJ
AVIATION...JM



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.