Weather Intelligence
Tropical Storm Cempaka: Latest Strength and Forecast
Tropical Storm Cempaka has 50 mph winds in the Western Pacific. See the latest JTWC position, movement, pressure and forecast track.
The latest official information on Tropical Storm Cempaka comes from the Joint Typhoon Warning Center (JTWC), Warning #005, valid at 06:00 UTC on November 7 and issued at 09:00 UTC.
Where the Storm Is Now
JTWC placed the center of Cempaka (designated 31W) near 20.0N, 142.8E at 06:00 UTC, based on satellite imagery. JTWC says the position is accurate to within 30 nautical miles. A later position estimate for 09:00 UTC put the center near 20.3N, 142.1E.
JTWC describes the storm as about 300 nautical miles south-southeast of Iwo To. Over the past six hours it has moved toward the northwest, on a heading of 305 degrees at 18 mph.
Strength
Cempaka is a tropical storm with maximum sustained winds of 50 mph and gusts up to 65 mph. JTWC measures sustained winds as a one-minute average. The storm's minimum central pressure was 999 mb at 06:00 UTC. JTWC also estimates the maximum significant wave height at 18 feet.
The storm is fairly compact. JTWC says tropical-storm-force winds extend at most 100 nautical miles from the center.
Forecast
JTWC forecasts Cempaka to strengthen steadily over the next two days. The forecast shows it reaching typhoon strength within about 24 hours and peaking near the 48-hour mark. JTWC then expects it to weaken. By the 96-hour point (06:00 UTC on the 11th), JTWC says the system will be becoming extratropical, meaning it is losing its tropical characteristics. It expects the system to be fully extratropical by 06:00 UTC on the 12th.
JTWC's forecast also shows the storm slowing as it moves northwest, then curving back toward the northeast later in the period. The forecast center positions are:
- 18:00 UTC on the 7th: 21.2N, 140.1E
- 06:00 UTC on the 8th: 22.2N, 137.3E
- 18:00 UTC on the 8th: 23.0N, 135.3E
- 06:00 UTC on the 9th: 23.8N, 134.7E
- 06:00 UTC on the 10th: 25.1N, 138.6E
Forecasts further out carry more uncertainty, and the track and intensity can change from one warning to the next.
Who Should Watch It
The JTWC warning does not describe any specific coastal impacts. Anyone with interests in the open waters of the northwestern Pacific, or near Iwo To, should keep an eye on later updates. Follow your local officials and national weather service for guidance specific to your area.
JTWC's next warnings are scheduled for 15:00 UTC and 21:00 UTC on the 7th, and 03:00 UTC and 09:00 UTC on the 8th.
Weather Worldwide Now updates this page as new official advisories are issued.
Sources
Drafted with AI assistance from official agency data and reviewed by Weather Worldwide Now before publishing.