Area Forecast Discussion
Issued by NWS Sioux Falls, SD

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000
FXUS63 KFSD 260333
AFDFSD

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1033 PM CDT THU SEP 25 2014

.SHORT TERM...(THIS EVENING THROUGH FRIDAY)
ISSUED AT 311 PM CDT THU SEP 25 2014

QUIET..ALMOST SUMMER LIKE WEATHER AHEAD TONIGHT INTO FRIDAY. A
SOUTHERLY WIND WILL WEAKEN INITIALLY THIS EVENING THEN GRADUALLY
INCREASE THROUGH THE NIGHT. THE INVERSION WILL SET UP AGAIN TONIGHT
WITH FAIRLY HIGH MOISTURE CONTENT IN THE LOWER LEVELS SUSPECT THAT
FOG WILL AGAIN DEVELOP. WE WILL SEE AN INCREASING WIND THROUGH THE
NIGHT WHICH MAY AID IN KEEPING SOME OF THE RADIATIONAL FOG FROM
BECOMING TOO WIDESPREAD BUT WITH NO DRIER AIR WORKING IN NOT SURE
THIS WILL MATTER. FOR NOW ADDED IN AREAS OF FOG WITH PATCHY DENSE
BUT WILL NEED TO KEEP AN EYE ON THIS AND IF CONFIDENCE INCREASES
ISSUE A DENSE FOG ADVISORY. OTHERWISE VERY MILD OVERNIGHT WITH LOWS
FROM 55 TO 60 IN NORTHWEST IOWA TO 60 TO 65 IN CENTRAL SOUTH DAKOTA.

AFTER THE MORNING FOG BURN OFF BY ABOUT 11 AM ANOTHER WARM AND
SLIGHTLY MORE BREEZY DAY IS EXPECTED. WINDS ALONG AND WEST OF THE
JAMES RIVER LIKELY TO BE IN THE 15 TO 25 MPH RANGE WITH 10 TO 20 MPH
WINDS TO THE EAST OF THE JAMES. LOW LEVEL THERMAL FIELDS A TOUCH
WARMER THAN TODAY SO LOOKS LIKE MOST LOCATIONS WILL CREEP INTO THE
80S WITH A FEW READINGS CLOSE TO 90 IN SOUTH CENTRAL SD.

.LONG TERM...(FRIDAY NIGHT THROUGH THURSDAY)
ISSUED AT 311 PM CDT THU SEP 25 2014

THE WEEKEND CONTINUES TO LOOK NICE WITH A BROAD UPPER LEVEL RIDGE
SITUATED ACROSS THE REGION. DO HAVE A CUT OFF UPPER LOW WOBBLING
AROUND THE NORTHERN PLAINS/NORTHERN MISSISSIPPI VALLEY THROUGH THE
PERIOD...BUT MAIN EFFECT FROM THIS WOULD TO BEING SOME SCATTERED
CLOUDS TO THE AREA. TEMPERATURES WILL REMAIN WELL ABOVE NORMAL BOTH
SATURDAY AND SUNDAY...TOPPING OUT IN THE UPPER 70S TO LOWER
80S...WITH LOWS UPPER 50S TO LOWER 60S.

PRECIPITATION CHANCES THEN BEGIN TO INCREASE FOR LATER ON MONDAY
INTO THE MIDDLE OF NEXT WEEK AS AN UPPER LEVEL LOW LIFTS OUT OF THE
SOUTHWESTERN U.S. DURING THE PERIOD. WITH THAT...TEMPERATURES WILL
TAKE A DOWNWARD TREND...DROPPING FROM THE UPPER 70S ON MONDAY TO
LOWER 70S FOR HIGHS ON TUESDAY AND WEDNESDAY. LOWS WILL BE 50S.

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z FRIDAY NIGHT)
ISSUED AT 1033 PM CDT THU SEP 25 2014

DURING THE PERIOD 08Z-15Z AREAS OF VISIBILITIES 3-5SM IN LIGHT FOG
WITH LOCAL VISIBILITIES BELOW 3SM AND CEILINGS BELOW 1K FEET IN
FOG. OTHERWISE VFR THROUGH 27/06Z.

&&

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

$$

SHORT TERM...08
LONG TERM...JM
AVIATION...


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