National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FXUS63 KGRR 191743
AFDGRR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
143 PM EDT WED JUN 19 2013

LATEST UPDATE...
AVIATION

.SYNOPSIS...
ISSUED AT 330 AM EDT WED JUN 19 2013

HIGH PRESSURE WILL CONTINUE TO BRING FAIR WEATHER TODAY THROUGH
FRIDAY. TEMPERATURES WILL BE SEASONABLY COOL TODAY BEFORE MODERATING
LATE THIS WEEK THROUGH THE WEEKEND. HIGHS WILL PUSH WELL INTO THE
80S THIS WEEKEND WITH A CHANCE OF SHOWERS AND THUNDERSTORMS.

&&

.SHORT TERM...(TODAY THROUGH FRIDAY AFTERNOON)
ISSUED AT 330 AM EDT WED JUN 19 2013

SHORT TERM FCST CONCERNS REMAIN MINIMAL WITH HIGH PRESSURE
CONTINUING IN CONTROL OF THE WX TODAY THROUGH THURSDAY RESULTING IN
FAIR WX. MAX TEMPS WILL REACH THE 70 TO 75 DEGREE RANGE TODAY. IT
WILL BECOME WARMER THURSDAY AS WINDS BECOME SOUTHWESTERLY AND HELP
TO BOOST MAX TEMPS INTO THE MIDDLE 70S TO LOWER 80S.

WE WILL KEEP A DRY FCST GOING THROUGH FRIDAY WITH 00Z NAM/GFS
GUIDANCE SHOWING ANY SHOWERS OR STORMS FRIDAY AFTERNOON SHOULD STAY
NORTH TO NW OF OUR FCST AREA. THE MODERATING TREND OF TEMPS WILL
CONTINUE ON FRIDAY DUE TO CONTINUED SOUTH TO SW FLOW WAA AND MAX
TEMPS WILL REACH THE LOWER TO MIDDLE 80S.

.LONG TERM...(FRIDAY NIGHT THROUGH TUESDAY)
ISSUED AT 330 AM EDT WED JUN 19 2013

FORECAST ISSUE IN THE EXTENDED IS HOW EXTENSIVE SHOWERS AND
THUNDERSTORMS ARE AS A WARM FRONT SLOWLY MOVES THROUGH OVER THE
WEEKEND. THIS COULD BE COMPLICATED BY MCS ACTIVITY AND RESULTING
OUTFLOW BOUNDARIES. LOOKS LIKE SATURDAY COULD HAVE THE BEST CHANCE
FOR RAIN AS CONVECTION FIRES UP ALONG THE WARM FRONT. WILL CARRY
SLIGHT OR CHANCE POPS OVER THE WEEKEND AND INTO TUESDAY SHADED LOWER
FURTHER SOUTH WHERE CAPPING EFFECT OF UPPER RIDGING WILL BE MORE
LIKELY TO LIMIT CONVECTION POTENTIAL.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z THURSDAY AFTERNOON)
ISSUED AT 142 PM EDT WED JUN 19 2013

LIGHT WINDS EXPECTED THROUGH THE PERIOD ALONG WITH CLEAR SKIES.

&&

.MARINE...
ISSUED AT 330 AM EDT WED JUN 19 2013

LIGHT WINDS WITH MINIMAL WAVES ARE ANTICIPATED TODAY THROUGH
THURSDAY WITH HIGH PRESSURE IN CONTROL.


&&

.HYDROLOGY...
ISSUED AT 330 AM EDT WED JUN 19 2013

MINIMAL HYDRO CONCERNS WITH DRY WX TODAY THROUGH FRIDAY. TWO RIVER
ADVISORIES REMAIN...AT IONIA AND HASTINGS. BASED ON THE CURRENT
TRENDS AND FORECASTS...BOTH SHOULD FALL BACK WITHIN BANK OR BELOW
ADVISORY STAGE IN THE NEXT 24 HOURS.

&&

.GRR WATCHES/WARNINGS/ADVISORIES...
MI...NONE.
LM...NONE.
&&

$$

SYNOPSIS...LAURENS
SHORT TERM...LAURENS
LONG TERM...OSTUNO
AVIATION...93
HYDROLOGY...LAURENS
MARINE...LAURENS