STORM MODEWeather tracking workspace

Tropical Depression Atsani

25 kt · 29 mph · NNW at 16 kt

Storm Mode · JTWC Warning · 25 Aug 06:00Z

Advisory delayed · last complete issuance

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JTWC forecast for Tropical Depression Atsani, Warning; rendered by MaverickWX

Published advisory track · Warning

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JTWC does not publish an NHC cone.

MaverickWX map · Data: JTWC · not an official graphic

Change time or forecast product

Recorded weather · gaps are marked. Coverage begins with recording activation.

Live sources keep independent clocks.

Replay coverage and interpretation

Rolling target: 24 hours; cells: six hours. Radar: NOAA MRMS national overview, 8-minute tolerance. Satellite: original GOES GeoColor day/night picture, hourly sampling, 75-minute tolerance. No interpolation or latest-image fallback. Warning and source checks retain their own clocks. “Recorded by” is collector acquisition evidence, not exact browser publication history.

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Analysis

Area, source times and interpretation

Current cached context, independently dated. Regional products keep their published footprint; they are not clipped or attributed to one storm. This section remains separate from the historical replay cursor and official cyclone forecast. Use Forecast to pin a retained model package.

Soundings: what weather balloons measured

SPC’s skew-T diagram and hodograph of the sounding at San Diego, CA (NKX), 12Z. Its levels are in the table below. — Observed Sounding at San Diego, CA (NKX), for 12:00Z (9 h 32 min ago). SPC’s graphic; the values in its panels (CAPE, shear, the indices) are SPC’s computations from these levels. Data: NOAA/SPC.

A balloon launched about an hour before the time named, measuring as it rose and drifted with the wind: the atmosphere above one place, at one time. Model soundings, which are forecasts, are not shown here.

The levels this sounding was drawn from (50)

San Diego, CA (NKX): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
Pressure	Height	Temperature	Dew point	Wind
997 mb	137 m	14.0	13.1	065° 5 kt
979 mb	292 m	16.0	13.2	—
934 mb	691 m	13.8	9.0	—
925 mb	773 m	13.2	9.0	315° 2 kt
913 mb	883 m	12.2	9.6	015° 1 kt
884 mb	1153 m	11.2	5.2	—
872 mb	1267 m	10.2	6.8	—
852 mb	1460 m	9.2	5.4	—
850 mb	1480 m	9.0	4.9	115° 7 kt
838 mb	1598 m	9.2	3.2	—
827 mb	1707 m	8.3	3.1	075° 12 kt
805 mb	1930 m	6.6	3.0	—
782 mb	2167 m	4.8	0.0	—
748 mb	2528 m	2.2	-0.6	—
723 mb	2802 m	0.2	-3.0	—
711 mb	2936 m	-0.4	-4.9	080° 12 kt
700 mb	3061 m	-1.3	-5.1	065° 14 kt
687 mb	3211 m	-1.9	-7.7	045° 16 kt
669 mb	3422 m	-3.4	-9.1	040° 17 kt
657 mb	3565 m	-4.3	-11.3	—
644 mb	3723 m	-4.0	-13.9	005° 22 kt
622 mb	3997 m	-5.7	-15.7	—
608 mb	4175 m	-7.1	-18.1	—
598 mb	4305 m	-7.3	-26.3	—
588 mb	4436 m	-6.7	-43.7	000° 24 kt
513 mb	5486 m	-15.1	-52.1	—
500 mb	5680 m	-16.3	-52.3	000° 36 kt
456 mb	6366 m	-20.3	-55.3	—
429 mb	6810 m	-23.6	-54.0	345° 47 kt
400 mb	7320 m	-27.5	-52.5	330° 45 kt
388 mb	7538 m	-29.3	-52.3	—
374 mb	7801 m	-28.9	-58.9	—
351 mb	8255 m	-30.3	-62.3	—
335 mb	8586 m	-31.9	-62.9	—
325 mb	8800 m	-32.3	-64.3	—
300 mb	9360 m	-36.1	-66.1	305° 60 kt
269 mb	10104 m	-41.1	-67.1	—
252 mb	10546 m	-41.8	-70.0	310° 47 kt
250 mb	10600 m	-42.1	-70.1	310° 47 kt
227 mb	11250 m	-45.1	-72.1	—
210 mb	11768 m	-47.5	-73.6	295° 55 kt
200 mb	12090 m	-48.7	-75.7	295° 44 kt
190 mb	12426 m	-49.5	-77.5	—
173 mb	13034 m	-52.3	-79.9	290° 42 kt
163 mb	13419 m	-52.9	-80.9	—
150 mb	13950 m	-55.7	-82.7	280° 41 kt
134 mb	14662 m	-59.6	-83.5	270° 34 kt
124 mb	15148 m	-60.5	-84.5	240° 43 kt
111 mb	15833 m	-61.9	-85.1	280° 41 kt
100 mb	16480 m	-62.5	-85.5	305° 19 kt

Every station with a sounding (77)

SPC observed soundings checked 21:30Z · Data: NOAA/SPC

Storm details

JTWC Warning · 25 Aug 06:00Z

Center position: 20.6°N, 137.3°E
Minimum pressure: Not reported
Maximum sustained wind: 25 kt · 29 mph
Movement: NNW at 16 kt
Since comparison advisory: Comparison unavailable

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Forecast cycle Time not published. Center position belongs to the official state’s time, not imagery time.

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Advisory comparison

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Data coverage

JTWC has no NHC cone, NHC wind probabilities or NHC civil coastal warnings. Local national services remain the warning authorities.

Geographic context: Natural Earth boundaries and representative place labels. Radar coverage is limited offshore. Satellite pixels keep their source palette and actual observation time. Missing imagery is not clear weather.

No supported U.S. NWS monitoring area for this advisory. This does not mean no warnings worldwide.

Lightning activity — GOES GLM

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Impacts

No supported U.S. monitoring area

Coastal alertsLocal national warning authorities apply Flooding rainOfficial rainfall context and coverage Storm surgeAvailability and coastal-only product limits Warnings in monitored areaNWS coverage unavailable here; not a global all-clear

Current warnings in the monitoring area

None: JTWC’s forecast track passes within 300 nm of no U.S. territory with NWS zones, Warning. Current geographical context; these alerts are not attributed to the cyclone.

No U.S. area

No U.S. territory is in this storm’s area: JTWC’s track passes within 300 nm of none. Its own panels are shown, and no NWS alert is listed.

Official forecast table

Forecast points

JTWC Warning · advisory 25 Aug 06:00Z · forecast cycle Time not published. Forecast positions are future estimates, not observed imagery. Classification is shown only where published.

Published official forecast; no interpolated positions or winds
Valid time / lead	Position	Classification	Sustained wind
25 Aug 18:00Z +12 h from forecast cycle	22.4°N, 136.0°E	tropical depression	20 kt · 23 mph

Advisory history and records

Advisory history

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Monitoring geography and current changes

Area: None: JTWC’s forecast track passes within 300 nm of no U.S. territory with NWS zones, Warning
JTWC issues no cone and no coastal segments, so the area is the territories its track reaches.
Hazards: —
Window: In force now, with this warning’s forecast
Made by: JTWC’s own products, as this site’s pipeline published them, read again with each new warning. Watch another area

The storm’s area, by its warning centre’s products: everything listed is in force in this area, never “from this storm”.

All published products and source descriptions

Forecast track

The official forecast track, drawn by this site from JTWC’s Warning (06:00Z). Not an official JTWC product. Data: JTWC. JTWC’s own.

Intensity forecast

The official intensity forecast, drawn by this site from JTWC’s Warning (06:00Z). Not an official JTWC product. Data: JTWC. JTWC’s own.

Satellite

The storm’s page shows it on the satellite, loaded by your browser.

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Imagery from NASA GIBS: NOAA GOES and JMA Himawari.

Model guidance

The models’ tracks, which are not a forecast for Tropical Depression Atsani, JTWC Warning

The models’ tracks, which are not a forecast, drawn by this site from JTWC’s Warning (06:00Z). Not an official JTWC product. Data: JTWC. JTWC’s own.

Radar

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Sources

JTWC warning, as published checked 21:32Z
Radar live tiles, no last-good copy

NWS coverage unavailableTropical Depression Atsani · — alerts

No supported NWS monitoring area. Check local warning authorities.

Not checked

Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.