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Home > Weather and Earthquakes > Tropical Cyclone Information

Tropical Cyclone Information

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Tropical Cyclone
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18:00 JST, 1 August 2020
TD b TD b

TD
Issued at 10:05 UTC, 1 August 2020
<Analysis at 09 UTC, 1 August>
Scale-
Intensity-
TD
Center positionN21°10' (21.2°)
E127°40' (127.7°)
Direction and speed of movementNW 20 km/h (12 kt)
Central pressure1004 hPa
Maximum wind speed near center15 m/s (30 kt)
Maximum wind gust speed23 m/s (45 kt)
<Forecast for 21 UTC, 1 August>
Intensity-
Center position of probability circleN22°10' (22.2°)
E125°55' (125.9°)
Direction and speed of movementWNW 20 km/h (10 kt)
Central pressure1002 hPa
Maximum wind speed near center18 m/s (35 kt)
Maximum wind gust speed25 m/s (50 kt)
Radius of probability circle85 km (45 NM)
<Forecast for 09 UTC, 2 August>
Intensity-
Center position of probability circleN23°25' (23.4°)
E124°40' (124.7°)
Direction and speed of movementNW 15 km/h (8 kt)
Central pressure998 hPa
Maximum wind speed near center23 m/s (45 kt)
Maximum wind gust speed35 m/s (65 kt)
Radius of probability circle110 km (60 NM)

Probability circles show expected tropical cyclone center locations with a probability of 70% for individual forecast times, but do not indicate changes in scale.

At this website, tropical depressions are identified by an alphabet for
users' convenience. This alphabet is not assigned in chronological order.
When tropical depressions have developed to tropical storms, typhoon
numbers are assigned instead.
Units:
1 kt (knot) = 1.852 km/h = 0.5144 m/s
1 NM (nautical mile) = 1.852 km

Abbreviations:
TY: Typhoon
STS: Severe Tropical Storm
TS: Tropical Storm
TD: Tropical Depression
LOW: Extra-tropical Low

Scale:
30-kt wind radius < 500 km
Large500 km ≦ 30-kt wind radius < 800 km
Very large800 km ≦ 30-kt wind radius

Intensity:
maximum wind speed < 85 kt
Very strong85 kt ≦ maximum wind speed < 105 kt
Violent105 kt ≦ maximum wind speed