ZCZC MIATCPEP3 ALL TTAA00 KNHC DDHHMM BULLETIN Tropical Storm Calvin Advisory Number 23 NWS National Hurricane Center Miami FL EP032023 1100 PM HST Sun Jul 16 2023 ...CALVIN EXPECTED TO BE NEAR THE HAWAIIAN ISLANDS BY TUESDAY NIGHT OR EARLY WEDNESDAY... ...THIS IS THE LAST ADVISORY FROM THE NATIONAL HURRICANE CENTER... SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION ----------------------------------------------- LOCATION...16.7N 139.7W ABOUT 1030 MI...1660 KM E OF HILO HAWAII MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 18 MPH...30 KM/H MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interests in Hawaii should monitor the progress of Calvin. A Tropical Storm Watch may be required for portions of the main Hawaiian Islands on Monday. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM HST (0900 UTC), the center of Tropical Storm Calvin was located near latitude 16.7 North, longitude 139.7 West. Calvin is moving toward the west near 18 mph (30 km/h), and this general motion is expected to continue during the next several days. On the forecast track, the center of Calvin will move into the central Pacific basin early Monday and approach the Hawaiian Islands on Tuesday and early Wednesday. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Some additional weakening is forecast during the next few days. Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center. The estimated minimum central pressure is 1000 mb (29.53 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Calvin can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDEP3 and WMO header WTPZ43 KNHC and on the web at hurricanes.gov/text/miatcdep3.shtml RAINFALL: From Tuesday night into Thursday, storm total rainfall amounts of 4-7 inches are possible along windward areas of the Big Island of Hawaii, with lower amounts (1-4 inches) expected elsewhere in the state. This rainfall could lead to localized flash flooding and mudslides. SURF: Swells generated by Calvin are expected to begin reaching the Hawaiian Islands during the next couple of days. These swells are likely to cause life-threatening surf and rip currents. Please consult products from your local weather office. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on this system. The next Public advisory will be issued by the Central Pacific Hurricane Center beginning at 5 am HST Monday under AWIPS header HFOTCPCP1 and WMO header WTPA31 PHFO, and on the web at hurricanes.gov. $$ Forecaster Kelly/Cangialosi NNNN