898
FXUS63 KBIS 220223
AFDBIS
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
923 PM CDT FRI AUG 21 2026
KEY MESSAGES
- NEAR AVERAGE TEMPERATURES ARE FAVORED TO CONTINUE THROUGH NEXT
WEEK, WITH MONDAY BEING A SLIGHTLY WARMER DAY.
- MEDIUM CHANCES (30 TO 60 PERCENT) FOR SHOWERS AND
THUNDERSTORMS LATE SATURDAY NIGHT THROUGH MONDAY.
UPDATE
ISSUED AT 923 PM CDT FRI AUG 21 2026
A QUIET NIGHT CONTINUES WITH NO UPDATES NEEDED AT THIS TIME.
UPDATE ISSUED AT 621 PM CDT FRI AUG 21 2026
SHOWERS AND THUNDERSHOWERS HAVE EXITED THE FORECAST AREA.
THEREFORE, REMOVED ANY REMAINING POPS EARLY THIS EVENING.
OTHERWISE, THE FORECAST REMAINS ON TRACK.
DISCUSSION
ISSUED AT 345 PM CDT FRI AUG 21 2026
CURRENTLY, NORTHWEST FLOW ALOFT WITH AN ELONGATED UPPER LEVEL
RIDGE STRETCHED FROM THE SOUTHERN ROCKIES INTO THE PACIFIC
NORTHWEST. EMBEDDED WAVE AND SUBTLE FRONTAL BOUNDARY
CONTRIBUTING TO AN AREA OF SHOWERS/ISOLATED THUNDERSTORMS MOVING
SOUTH-SOUTHEAST ACROSS THE AREA THIS AFTERNOON. THIS ACTIVITY
WILL MOVE OUT OF THE GENERAL AREA OVER THE NEXT FEW HOURS, WITH
A QUIET NIGHT EXPECTED WITH SFC HIGH PRESSURE BUILDING IN.
SURFACE HIGH PRESSURE BUILDING INTO THE NORTHERN PLAINS WILL
RESULT IN QUIET WEATHER TO START THE WEEKEND. AS THE SFC HIGH
DEVELOPS EAST ACROSS THE REGION, INCREASING SOUTHERLY RETURN
FLOW WILL SEE INCREASING CHANCES FOR SHOWERS AND THUNDERSTORMS
ALONG WITH TEMPERATURE TRENDING WARMER SUNDAY INTO MONDAY.
THE REMAINDER OF THE WEEK WILL SEE A ROCKIES UPPER LEVEL RIDGE
REBUILDING AND PERIODICALLY BREAKING DOWN, RESULTING IN SEASONAL
TEMPERATURES THOUGH PERIODS OF ENHANCED PRECIPITATION CHANCES.
AVIATION /00Z TAFS THROUGH 00Z SATURDAY/
ISSUED AT 621 PM CDT FRI AUG 21 2026
VFR CEILINGS AND VISIBILITY ARE EXPECTED THROUGH THE PERIOD.
BIS WATCHES/WARNINGS/ADVISORIES
NONE.
UPDATE...TELKEN
DISCUSSION...NH
AVIATION...TELKEN
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