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 Brownsville, TX (BRO), 18Z. Its levels are in the table below. — Observed Sounding at Brownsville, TX (BRO), for 18:00Z (3 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 (57)

Brownsville, TX (BRO): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
Pressure	Height	Temperature	Dew point	Wind
1020 mb	7 m	28.8	19.8	095° 13 kt
1001 mb	170 m	26.0	18.0	—
1000 mb	179 m	26.0	18.0	110° 16 kt
986 mb	305 m	24.7	17.8	115° 17 kt
952 mb	610 m	21.4	17.4	130° 18 kt
925 mb	858 m	18.8	17.0	120° 19 kt
893 mb	1160 m	16.2	16.2	—
865 mb	1432 m	14.4	14.4	—
850 mb	1580 m	13.4	12.4	140° 10 kt
836 mb	1720 m	13.6	10.2	—
825 mb	1829 m	12.9	9.3	145° 10 kt
812 mb	1966 m	13.2	2.2	—
802 mb	2070 m	12.6	2.6	—
792 mb	2175 m	12.6	-4.4	—
781 mb	2293 m	12.8	-10.2	—
771 mb	2401 m	12.4	-4.6	—
755 mb	2576 m	11.4	-4.6	—
740 mb	2743 m	9.8	2.8	130° 8 kt
700 mb	3203 m	6.4	3.5	205° 5 kt
673 mb	3525 m	4.4	-1.6	—
662 mb	3658 m	3.5	-3.4	180° 3 kt
650 mb	3808 m	2.8	-5.2	—
638 mb	3962 m	5.5	-31.2	200° 10 kt
617 mb	4233 m	5.8	-40.2	—
593 mb	4556 m	3.2	-41.8	—
570 mb	4877 m	2.2	-42.2	160° 9 kt
541 mb	5296 m	-0.1	-40.1	—
530 mb	5460 m	-1.7	-24.7	—
514 mb	5702 m	-3.9	-25.9	—
500 mb	5920 m	-5.1	-25.1	165° 11 kt
489 mb	6096 m	-6.5	-25.2	175° 12 kt
470 mb	6401 m	-8.9	-25.5	165° 8 kt
440 mb	6909 m	-12.9	-25.9	—
421 mb	7244 m	-15.1	-35.1	—
401 mb	7620 m	-17.2	-38.3	155° 18 kt
400 mb	7630 m	-17.3	-38.3	155° 15 kt
389 mb	7838 m	-18.9	-38.9	—
354 mb	8534 m	-24.9	-45.4	140° 13 kt
325 mb	9144 m	-30.1	-51.1	200° 14 kt
311 mb	9449 m	-32.2	-54.7	210° 13 kt
300 mb	9710 m	-33.1	-53.1	230° 16 kt
285 mb	10058 m	-35.9	-52.4	240° 15 kt
273 mb	10363 m	-38.0	-44.2	260° 24 kt
260 mb	10695 m	-40.5	-58.5	—
250 mb	10960 m	-42.9	-50.9	260° 34 kt
238 mb	11291 m	-44.5	-52.5	—
228 mb	11577 m	-46.5	-61.5	—
217 mb	11904 m	-48.7	-62.7	—
200 mb	12440 m	-51.1	-72.1	255° 63 kt
189 mb	12802 m	-54.1	-73.4	255° 63 kt
178 mb	13186 m	-56.7	-75.7	—
164 mb	13716 m	-60.3	-80.8	270° 52 kt
150 mb	14250 m	-63.9	-78.9	260° 31 kt
134 mb	14935 m	-68.7	-80.8	265° 42 kt
117 mb	15736 m	-74.1	-82.1	—
105 mb	16367 m	-74.9	-85.9	—
100 mb	16650 m	-76.3	-87.3	270° 16 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.

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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

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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

NOAA’s radar for the area, loaded by your browser as on the Radar page.

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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.