Guillermo is definitely weakening as it approaches Hawaii. The upper wind shears is a hostile environment for the storm. Steady weakening is forecast. In Kohala we should get some rain and mild winds.
Kohala is approximately 20.24° N(latitude), 155.84°W(longitude)
1degree latitude is approximately 70 miles and 1degree longitude is approximately 55 miles.
FORECAST POSITIONS AND MAX WINDS INIT 05/1500Z 20.5N 151.2W 50 KT 60 MPH 12H 06/0000Z 21.2N 152.5W 45 KT 50 MPH 24H 06/1200Z 22.0N 154.5W 35 KT 40 MPH 36H 07/0000Z 22.4N 156.8W 30 KT 35 MPH 48H 07/1200Z 23.0N 159.2W 30 KT 35 MPH 72H 08/1200Z 24.6N 163.3W 25 KT 30 MPH...POST-TROP/REMNT LOW 96H 09/1200Z 26.5N 168.0W 20 KT 25 MPH...POST-TROP/REMNT LOW 120H 10/1200Z...DISSIPATED
AT 500 AM HST...1500 UTC...THE CENTER OF TROPICAL STORM GUILLERMO WAS LOCATED NEAR LATITUDE 20.5 NORTH...LONGITUDE 151.2 WEST. GUILLERMO IS MOVING TOWARD THE WEST-NORTHWEST NEAR 9 MPH...15 KM/H. THIS MOTION IS EXPECTED TO CONTINUE OVER THE NEXT COUPLE OF DAYS...WITH A SLIGHT INCREASE IN FORWARD SPEED. ON THE FORECAST TRACK...THE CENTER OF GUILLERMO IS EXPECTED TO PASS ABOUT 160 MILES NORTH-NORTHEAST OF THE BIG ISLAND LATE TONIGHT...AND 90 MILES NORTH-NORTHEAST OF MAUI ON THURSDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 60 MPH...95 KM/H...WITH HIGHER GUSTS. STEADY WEAKENING IS EXPECTED THE NEXT COUPLE OF DAYS... WITH GUILLERMO EXPECTED TO WEAKEN TO A DEPRESSION ON THURSDAY. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 185 MILES...295 KM FROM THE CENTER...MAINLY TO THE NORTH OF THE CENTER. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 999 MB...29.50 INCHES.