918
FXUS63 KGRR 231115
AFDGRR
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
715 AM EDT FRI AUG 23 2019
LATEST UPDATE...
AVIATION
SYNOPSIS
ISSUED AT 312 AM EDT FRI AUG 23 2019
- COMFORTABLE FOR THE NEXT FEW DAYS
- NEXT CHANCE OF RAIN: MONDAY-TUESDAY
DISCUSSION
(TODAY THROUGH NEXT THURSDAY)
ISSUED AT 312 AM EDT FRI AUG 23 2019
HIGH PRESSURE OVER THE GREAT LAKES WILL CONTINUE TO PRODUCE VERY
COMFORTABLE LATE SUMMER WEATHER THROUGH SUNDAY. AS THE HIGH MOVES
EAST A TROUGH OVER THE OHIO VALLEY WILL HELP A SFC LOW MOVE NORTH
TOWARD MICHIGAN. MODELS SHOW THIS TROUGH AS NEGATIVELY TILTED WHICH
SUGGESTS THAT IT MAY BE A DECENT RAIN PRODUCER. INDEED, PRECIPITABLE
WATER VALUES CLIMB TO 2 INCHES MONDAY AFTERNOON AS THE LLJ NOSES
INTO THE STATE. WE HAVE FAIRLY HIGH POPS LATE MONDAY FOR THIS.
AFTER MONDAY, CHANCES FOR RAIN AREN'T ZERO, BUT THEY AREN'T THAT
HIGH EITHER. A PERSISTENT UPPER LOW OVER WESTERN ONTARIO WILL SEE
SEVERAL MINOR WAVES PUSH ACROSS THE STATE, BUT THE BEST DYNAMICS
STAY NORTH OF THE CWA.
HIGHS WILL BE MAINLY IN THE 70S THROUGH THE PERIOD. OTHER THAN
MONDAY NIGHT, LOWS WILL MAINLY BE IN THE 50S.
AVIATION
(FOR THE 12Z TAFS THROUGH 12Z SATURDAY MORNING)
ISSUED AT 715 AM EDT FRI AUG 23 2019
VFR CONDITIONS WILL CONTINUE THROUGH SATURDAY. WINDS WILL BE
NORTH TO NORTHEAST AT 5 TO 10 KNOTS.
MARINE
ISSUED AT 312 AM EDT FRI AUG 23 2019
NORTH WIND 5 TO 15 KNOTS WILL RESULT IN 1-3 FOOT WAVES
TODAY/TONIGHT.
GRR WATCHES/WARNINGS/ADVISORIES
MI...NONE.
LM...NONE.
SYNOPSIS...04
DISCUSSION...04
AVIATION...OSTUNO
MARINE...04
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