Typhoon Prapiroon (2018)

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Map key
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
Disc Plain black.svg Tropical cyclone
Solid black.svg Subtropical cyclone
ArrowUp.svg Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

On June 27 at 20:00 UTC, the Joint Typhoon Warning Center (JTWC) began monitoring a system in the Philippine Sea, giving it a low development potential. [1] The next day at 00:00 UTC, the Japan Meteorological Agency (JMA) began issuing advisories on a tropical depression, [2] with the JTWC upgrading its development potential to medium at 00:30 UTC. [1] The depression continued over favorable conditions as it was steered by a mid-level subtropical high-pressure area, [3] and on the same day at 12:00 UTC, the JTWC began issuing warnings on Tropical Depression 09W. [1] At 18:00 UTC, the PAGASA began issuing warnings on the tropical depression, [4] giving it the local name Florita 3 hours later at 21:00 UTC. [5]

On June 29 at 00:00 UTC, the JMA upgraded the depression to a tropical storm, giving it the name Prapiroon. Prapiroon had good upper-level outflow, though dry air present in the area negatively affected its development. [6] At 03:00 UTC the same day, the JTWC upgraded Prapiroon to a tropical storm as it was located approximately 440 nautical miles (815 km; 505 mi) south-southeast of Kadena Air Base. [7] Prapiroon then turned to the northwest, [8] and on July 1 at 00:00 UTC, the JMA upgraded Prapiroon to a severe tropical storm. [9] On the same day at 06:00 UTC, the PAGASA issued its final warning on Prapiroon as it exited the Philippine Area of Responsibility. [10] Later that day, a ragged eye became apparent, [11] and at 21:00 UTC, the JTWC upgraded Prapiroon to a typhoon. [12] Prapiroon continued developing aided by favorable conditions, and on July 2 at 00:00 UTC, the JMA upgraded Prapiroon to a typhoon. [13] At 18:00 UTC the same day, both the JMA and the JTWC assessed that Prapiroon had peaked in intensity, with 10-min winds of 65 knots (120 km/h; 75 mph), 1-min winds of 80 knots (150 km/h; 90 mph), and a minimum central pressure of 960 hectopascals (28  inHg ). [14] [15] After peaking, Prapiroon began to weaken and turn to the northeast, with the JMA downgrading it to a severe tropical storm on July 3 at 06:00 UTC as conditions for development became unfavorable. [16] The JTWC downgraded Prapiroon to a tropical storm at 15:00 UTC as its low-level circulation became exposed, with central convection becoming elongated. [17] Prapiroon's western semicircle became completely devoid of deep convection, [18] and by July 4 at 00:00 UTC, the JMA further downgraded it to a tropical storm. [19] The JMA later issued its final advisory on Prapiroon at 06:00 UTC as it became extratropical, [20] [14] with the JTWC doing so later at 15:00 UTC. [21] Prapiroon's extratropical remnants dissipated just south of Hokkaido the next day. [14]

Impact

Japan

Five people were injured by the winds from the typhoon. [22] A woman was blown away by the strong winds of the typhoon and died at a hospital she was sent to later. [23] The typhoon also caused damages on Old Gorin Church, which as designated as heritage site four days prior, and caused damages to the stained glass in Kuroshima Catholic Church. [24] Agricultural damage in Okinawa Prefecture were about ¥49.39 million (US$446,000). [25]

South Korea

1 person from South Korea was killed by the storm; one other person was declared missing. [26]

See also

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Typhoon Prapiroon (Florita)
Prapiroon 2018-07-02 0000Z.png
Prapiroon shortly before peak intensity north of Ryukyu Islands on July 2