FXUS63 KGRR 191107
AFDGRR
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
707 AM 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 12Z TAFS THROUGH 12Z THURSDAY MORNING)
ISSUED AT 707 AM EDT WED JUN 19 2013
VFR CONDITIONS WILL CONTINUE THROUGH TONIGHT. WINDS WILL BE
SOUTHEAST TODAY AOB 10 KNOTS.
&&
.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...OSTUNO
HYDROLOGY...LAURENS
MARINE...LAURENS