Draft:Tropical Depression Kristine (2024)

Tropical Depression 22W (Kristine)
Kristine in its formative stages on October 20
Meteorological history
FormedOctober 19, 2024
Tropical depression
10-minute sustained (JMA)
Highest winds55 km/h (35 mph)
Lowest pressure1002 hPa (mbar); 29.59 inHg
Tropical depression
1-minute sustained (SSHWS/JTWC)
Highest winds45 km/h (30 mph)
Lowest pressure1001 hPa (mbar); 29.56 inHg
Overall effects
Areas affectedNone

Part of the 2024 Pacific typhoon season

Tropical Depression 22W, known in the Philippines as Tropical Depression Kristine, is a currently active tropical cyclone in the Western Pacific Ocean that is threatening the Philippines. The twenty-second tropical depression of the season, the system formed from an area of disturbed weather on October 19.

Meteorological history

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Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
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
  Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

The origins of Tropical Depression Kristine can be traced back to October 19, when the Japan Meteorological Agency (JMA) reported a low-pressure area located 633 km (394 mi) west of Guam.[1] The United States Joint Typhoon Warning Center (JTWC) described it as a very weak vortex with light winds wrapping around the circulation, along with deep moisture fields to the southwest beginning to encircle the vortex.[2] The low-pressure area later moved westward slowly before it was designated as a tropical depression by the JMA.[3] At 15:00 UTC that day, the JTWC issued a tropical cyclone formation alert, indicating a consolidating low-level circulation center bounded by formative convective banding wrapping around its northern and southern edges.[4] The depression was moving westward along the southern periphery of a mid-level subtropical high, which made it favorable for tropical cyclogenesis due to low vertical wind shear, warm sea surface temperatures, and high ocean heat content.[5] The following day, the JTWC designated the system as 22W, as low-level banding wrapped into the circulation center, with a tightly curved convective band wrapping along the eastern edge of the circulation.[6] After entering the Philippine Area of Responsibility, it was named Kristine by the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) at 05:00 PHT on October 21 (21:00 UTC on October 20).[7]

See also

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References

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  1. ^ Warning and Summary 191200 (Report). Tokyo, Japan: Japan Meteorological Agency. October 19, 2024. Archived from the original on October 19, 2024. Retrieved October 19, 2024.
  2. ^ Significant Tropical Weather Advisory for the Western and South Pacific Oceans, 03Z 19 October 2024 (Report). United States Joint Typhoon Warning Center. October 19, 2024. Archived from the original on October 19, 2024. Retrieved October 19, 2024.
  3. ^ Warning and Summary 191800 (Report). Tokyo, Japan: Japan Meteorological Agency. October 19, 2024. Archived from the original on October 19, 2024. Retrieved October 19, 2024.
  4. ^ Tropical Cyclone Formation Alert (Invest 96W) (Report). United States Joint Typhoon Warning Center. October 19, 2024. Retrieved October 19, 2024.
  5. ^ Prognostic Reasoning No. 1 for tropical depression (Report). Tokyo, Japan: Japan Meteorological Agency. October 20, 2024. Archived from the original on October 20, 2024. Retrieved October 20, 2024.
  6. ^ Prognostic Reasoning for Tropical Depression 22W (Twenty-Two) Warning No. 1 (Report). United States Joint Typhoon Warning Center. October 20, 2024. Retrieved October 20, 2024.
  7. ^ "Tropical Depression #KristinePH enters PAR". www.gmanetwork.com. Retrieved October 20, 2024.
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