STORM MODEWeather tracking workspace

Tropical Depression Thirty

30 kt · 35 mph · 1004 hPa · NW at 1 kt

Storm Mode · JTWC Warning 1 ·

Latest published advisory

Weather Operations Mode
Layers
JTWC forecast for Tropical Depression Thirty, Warning 1; rendered by MaverickWX
Published advisory track · Warning 1

Observed imagery loads separately from the advisory. The base map is not observed satellite imagery.

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.

Current GLM density, velocity and specialist layers are hidden during replay. Snow uses retained footprint metadata with unverified pixel time. Forecast uses one pinned issuance/run and exact valid time.

No observed replay frame displayed.

Open the complete replay reader (works without scripting or WebGL)

Choose Forecast for a pinned issuance and valid time.

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 Slidell, LA (LIX), 12Z. Its levels are in the table below.
Observed Sounding at Slidell, LA (LIX), for (4 h 42 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 (58)
Slidell, LA (LIX): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
1018 mb10 m10.49.2calm
1005 mb122 m21.04.0—
1000 mb166 m21.64.6075° 10 kt
984 mb305 m20.94.1090° 13 kt
950 mb610 m18.82.5085° 12 kt
925 mb836 m17.21.2070° 11 kt
895 mb1116 m15.00.0—
884 mb1219 m14.5-2.4055° 13 kt
870 mb1356 m14.4-14.6—
853 mb1524 m15.1-18.3030° 10 kt
850 mb1552 m15.2-18.8035° 11 kt
839 mb1662 m15.6-27.4—
829 mb1763 m14.60.6—
793 mb2134 m11.31.0020° 9 kt
783 mb2242 m10.41.4—
765 mb2438 m9.4-2.4010° 15 kt
749 mb2610 m8.0-3.0—
737 mb2743 m7.1-3.6015° 19 kt
721 mb2923 m5.4-3.6—
710 mb3048 m4.6-8.4020° 17 kt
700 mb3164 m4.8-16.2015° 17 kt
684 mb3353 m3.4-18.3010° 19 kt
671 mb3507 m4.4-37.6—
659 mb3658 m4.9-40.4035° 20 kt
634 mb3962 m2.6-40.9035° 19 kt
611 mb4267 m0.1-41.6055° 22 kt
588 mb4572 m-1.9-43.5055° 22 kt
566 mb4877 m-3.4-46.1045° 19 kt
539 mb5256 m-5.3-49.3—
523 mb5486 m-7.1-50.7015° 24 kt
500 mb5840 m-9.9-52.9020° 23 kt
484 mb6096 m-11.8-53.1020° 22 kt
461 mb6463 m-14.5-53.5—
444 mb6748 m-15.7-39.7—
427 mb7042 m-17.5-48.5—
406 mb7419 m-19.5-38.5—
400 mb7530 m-20.5-38.5015° 53 kt
389 mb7735 m-22.3-38.3—
359 mb8315 m-27.3-45.3—
329 mb8931 m-31.2-50.9000° 62 kt
306 mb9443 m-34.5-55.5—
300 mb9580 m-35.1-61.1005° 52 kt
284 mb9963 m-36.9-63.9—
257 mb10652 m-41.7-65.7—
250 mb10840 m-42.7-69.7355° 42 kt
234 mb11278 m-44.6-71.1000° 37 kt
224 mb11576 m-46.1-72.1—
207 mb12096 m-49.5-71.5—
200 mb12320 m-51.5-72.5345° 26 kt
190 mb12649 m-54.3-74.3—
180 mb12994 m-54.5-75.5—
161 mb13699 m-59.1-78.1—
150 mb14140 m-59.9-81.9310° 33 kt
139 mb14630 m-62.6-85.3315° 35 kt
125 mb15240 m-65.6-86.6325° 17 kt
113 mb15850 m-69.5-86.4285° 22 kt
102 mb16459 m-72.5-86.2340° 23 kt
100 mb16590 m-73.3-86.3305° 22 kt

SPC observed soundings checked · Data: NOAA/SPC

Impacts

No supported U.S. monitoring area

Current warnings in the monitoring area

None: JTWC’s forecast track passes within 300 nm of no U.S. territory with NWS zones, Warning 1. 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 1 · advisory · forecast cycle . Forecast positions are future estimates, not observed imagery. Classification is shown only where published.

Published official forecast; no interpolated positions or winds
Valid time / leadPositionClassificationSustained wind

+12 h from forecast cycle
10.9°N, 166.5°Etropical storm40 kt · 46 mph

+24 h from forecast cycle
11.2°N, 166.3°Etropical storm50 kt · 58 mph

+36 h from forecast cycle
12.0°N, 166.0°Etyphoon65 kt · 75 mph

+48 h from forecast cycle
13.1°N, 165.4°Etyphoon80 kt · 92 mph

+60 h from forecast cycle
14.1°N, 165.2°Etyphoon90 kt · 104 mph

+72 h from forecast cycle
14.8°N, 165.3°Etyphoon100 kt · 115 mph

+96 h from forecast cycle
15.2°N, 165.1°Etyphoon100 kt · 115 mph

+120 h from forecast cycle
15.5°N, 161.7°Etyphoon120 kt · 138 mph
Advisory history and records

Advisory history

Return to latest advisory

Each entry selects one immutable snapshot. Intermediate, special and corrected records are separate identities where retained. Current NWS context is labelled separately. Historical impact manifests are not retained by this index; newer impacts are never attached to an earlier advisory. Same-time corrections replaced in the publisher’s index cannot be selected unless still listed.

Advisory history; retained records only
Official issuanceRevision kindRecord
JTWC Warning 1 · firstSnapshot 82a249e4 · Selected
Monitoring geography and current changes
Area
None: JTWC’s forecast track passes within 300 nm of no U.S. territory with NWS zones, Warning 1
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 for Tropical Depression Thirty, JTWC Warning 1

The official forecast track, drawn by this site from JTWC’s Warning 1 (). Not an official JTWC product. Data: JTWC. JTWC’s own.

Intensity forecast

The official intensity forecast for Tropical Depression Thirty, JTWC Warning 1

The official intensity forecast, drawn by this site from JTWC’s Warning 1 (). Not an official JTWC product. Data: JTWC. JTWC’s own.

Satellite

The storm’s page shows it on NASA GIBS (NOAA GOES, JMA Himawari)’s imagery, loaded by your browser. Himawari at 26° from the storm's meridian.

Open the storm’s page

Imagery from NASA GIBS: NOAA GOES and JMA Himawari.

Model guidance

The models’ tracks, which are not a forecast for Tropical Depression Thirty, JTWC Warning 1

The models’ tracks, which are not a forecast, drawn by this site from JTWC’s Warning 1 (). 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.

Open the radar

Live tiles; the radar keeps no last-good copy.

Sources

NWS coverage unavailableTropical Depression Thirty · — 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.