To refresh some of the terminology regarding the intensity of storms; below is the scale being used.
| Category | Wind speeds |
|---|---|
| Five | ≥157 mph |
| Four | 130–156 mph |
| Three | 111–129 mph |
| Two | 96–110 mph |
| One | 74–95 mph |
| Tropical storm |
39–73 mph |
|---|---|
| Tropical depression |
≤38 mph |
.PROBABILITY OF TROPICAL STORM/HURRICANE CONDITIONS... THE CHANCE FOR HURRICANE CONDITIONS AT HILO IS 10 PERCENT... KAILUA-KONA IS 7 PERCENT...AND SOUTH POINT IS 20 PERCENT. ALSO...THE CHANCE FOR TROPICAL STORM CONDITIONS AT HILO IS 75 PERCENT...AT KAILUA-KONA IS 67 PERCENT...AND AT SOUTH POINT IS 86 PERCENT. THIS REPRESENTS A SLIGHT UPWARD TREND SINCE THE LAST FORECAST FOR TROPICAL STORM FORCE CONDITIONS...WITH THE PROBABILITY OF EXPERIENCING HURRICANE FORCE CONDITIONS REMAINING UNCHANGED. THE ONSET OF TROPICAL STORM CONDITIONS COULD OCCUR AS EARLY AS WEDNESDAY MORNING. THE ONSET OF HURRICANE CONDITIONS COULD START AS EARLY AS WEDNESDAY EVENING. ...WINDS... TROPICAL STORM FORCE WINDS OF 39 MPH OR HIGHER ARE EXPECTED FROM WEDNESDAY AFTERNOON THROUGH LATE THURSDAY MORNING BASED ON THE LATEST FORECAST TRACK...WITH HURRICANE FORCE WINDS POSSIBLE. DEPENDING ON THE EXACT TRACK OF MADELINE...THERE IS THE POSSIBILITY OF SIGNIFICANT WIND DAMAGE...INCLUDING DOWNED TREES AND POWER LINES...AND DAMAGE TO ROOFS AND WEAK STRUCTURES. ...STORM SURGE AND STORM TIDE... LARGE AND DAMAGING SURF IS EXPECTED ALONG EAST FACING SHORES. SURF WILL BUILD TODAY...AND PEAK AT 15 TO 25 FEET TONIGHT THROUGH WEDNESDAY NIGHT. THIS MAY CAUSE SIGNIFICANT WAVE RUNUP OR DAMAGE TO COASTAL PROPERTIES AND INFRASTRUCTURE...INCLUDING ROADWAYS. POWERFUL LONGSHORE AND RIP CURRENTS WILL BE PRESENT AT MOST BEACHES. LARGE BREAKING WAVES AND STRONG CURRENTS MAY IMPACT HARBOR ENTRANCES AND CHANNELS CAUSING CHALLENGING BOAT HANDLING. ...INLAND FLOODING... A FLASH FLOOD WATCH IS IN EFFECT. DEEP TROPICAL MOISTURE ASSOCIATED WITH THE MADELINE WILL BEGIN TO IMPACT THE BIG ISLAND BY WEDNESDAY MORNING...BRINGING THE THREAT OF HEAVY RAINFALL AND FLOODING THROUGH LATE THURSDAY. TOTAL RAIN ACCUMULATIONS OF 5 TO 10 INCHES ARE POSSIBLE...WITH ISOLATED MAXIMUM AMOUNTS NEAR 15 INCHES...ESPECIALLY OVER WINDWARD PORTIONS OF THE BIG ISLAND. THIS RAINFALL MAY LEAD TO DANGEROUS FLASH FLOODS AND MUDSLIDES. REFER TO THE WATCH FOR MORE DETAILS.