STORM MODEWeather tracking workspace

Tropical Depression Etau

30 kt · 35 mph · 991 hPa · NE at 9 kt

Storm Mode · JTWC Warning 16 · 30 Aug 18:00Z

Final advisory · monitoring can continue

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JTWC forecast for Tropical Depression Etau, Warning 16; rendered by MaverickWX

Published advisory track · Warning 16

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JTWC does not publish an NHC cone.

MaverickWX map · Data: JTWC · not an official graphic

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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 Las Vegas, NV (VEF), 12Z. Its levels are in the table below. — Observed Sounding at Las Vegas, NV (VEF), for 12:00Z (8 h 1 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)

Las Vegas, NV (VEF): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
Pressure	Height	Temperature	Dew point	Wind
933 mb	697 m	14.0	6.0	—
920 mb	816 m	16.2	5.2	—
909 mb	914 m	15.6	3.7	345° 13 kt
886 mb	1135 m	14.2	3.2	—
846 mb	1524 m	11.3	1.4	005° 17 kt
818 mb	1803 m	9.2	0.2	—
798 mb	2007 m	8.2	-0.8	—
786 mb	2134 m	7.1	-1.3	035° 19 kt
757 mb	2438 m	4.4	-2.4	040° 18 kt
743 mb	2592 m	3.0	-3.0	—
729 mb	2743 m	2.0	-5.0	030° 14 kt
693 mb	3152 m	-1.3	-5.1	—
676 mb	3353 m	-3.0	-6.2	055° 10 kt
654 mb	3611 m	-5.1	-7.6	—
625 mb	3962 m	-7.9	-11.7	085° 8 kt
605 mb	4217 m	-9.5	-11.7	—
578 mb	4569 m	-12.1	-16.7	—
559 mb	4824 m	-13.5	-17.2	—
536 mb	5142 m	-16.5	-22.5	—
525 mb	5297 m	-17.5	-25.5	—
512 mb	5486 m	-17.9	-26.8	040° 13 kt
495 mb	5737 m	-18.9	-24.9	—
476 mb	6027 m	-20.3	-27.3	—
462 mb	6248 m	-21.7	-28.7	—
434 mb	6706 m	-25.0	-33.3	355° 9 kt
420 mb	6943 m	-26.7	-35.7	—
399 mb	7311 m	-29.5	-40.5	—
382 mb	7620 m	-32.3	-42.3	330° 11 kt
367 mb	7900 m	-34.9	-43.9	—
350 mb	8230 m	-37.9	-46.0	000° 4 kt
335 mb	8534 m	-40.6	-49.6	340° 4 kt
320 mb	8839 m	-43.0	-52.0	300° 2 kt
307 mb	9117 m	-44.9	-53.9	—
296 mb	9361 m	-44.5	-55.5	—
285 mb	9614 m	-45.1	-56.1	—
267 mb	10058 m	-43.3	-56.9	215° 11 kt
255 mb	10363 m	-42.5	-57.8	235° 9 kt
244 mb	10668 m	-43.9	-60.3	270° 13 kt
233 mb	10973 m	-45.2	-62.8	280° 18 kt
222 mb	11278 m	-45.9	-64.2	285° 20 kt
204 mb	11849 m	-48.5	-69.5	—
194 mb	12192 m	-48.8	-71.4	280° 16 kt
178 mb	12743 m	-49.9	-73.9	—
161 mb	13411 m	-50.5	-76.2	270° 32 kt
150 mb	13860 m	-50.7	-78.7	—
140 mb	14326 m	-53.0	-81.5	270° 15 kt
129 mb	14832 m	-54.7	-84.7	—
118 mb	15398 m	-57.5	-87.5	—
106 mb	16071 m	-60.1	-89.1	—
100 mb	16433 m	-62.1	-91.1	—

Every station with a sounding (77)

SPC observed soundings checked 20:00Z · Data: NOAA/SPC

Storm details

JTWC Warning 16 · 30 Aug 18:00Z

Center position: 31.7°N, 166.8°E
Minimum pressure: 991 hPa
Maximum sustained wind: 30 kt · 35 mph
Movement: NE at 9 kt
Since comparison advisory: Comparison unavailable

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Forecast cycle 30 Aug 18:00Z. Center position belongs to the official state’s time, not imagery time. The warning center issued its final advisory; continuing flood/rain monitoring does not imply a new cyclone forecast.

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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 16. 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 16 · advisory 30 Aug 18:00Z · forecast cycle 30 Aug 18:00Z. 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
31 Aug 06:00Z +12 h from forecast cycle	33.7°N, 167.6°E	tropical depression	30 kt · 35 mph
31 Aug 18:00Z +24 h from forecast cycle	36.3°N, 168.0°E	tropical depression	30 kt · 35 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 16
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 16 (18:00Z). Not an official JTWC product. Data: JTWC. JTWC’s own.

Intensity forecast

The official intensity forecast, drawn by this site from JTWC’s Warning 16 (18:00Z). 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 Etau, JTWC Warning 16

The models’ tracks, which are not a forecast, drawn by this site from JTWC’s Warning 16 (18:00Z). 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 20:00Z
Radar live tiles, no last-good copy

NWS coverage unavailableTropical Depression Etau · — 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.