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 Sterling, VA (IAD), 12Z. Its levels are in the table below.
Observed Sounding at Sterling, VA (IAD), 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 (55)
Sterling, VA (IAD): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
1015 mb93 m10.25.6355° 5 kt
1005 mb172 m11.45.4—
1000 mb212 m11.25.2020° 15 kt
989 mb305 m10.94.7025° 20 kt
953 mb610 m9.72.2035° 27 kt
925 mb861 m8.00.0035° 25 kt
886 mb1219 m5.42.2055° 12 kt
873 mb1335 m5.0-2.0—
853 mb1524 m4.3-2.0350° 15 kt
850 mb1553 m4.2-1.8000° 12 kt
840 mb1649 m4.0-1.0—
825 mb1796 m4.4-0.1—
804 mb2006 m3.2-0.4—
791 mb2134 m3.4-4.7325° 14 kt
778 mb2273 m3.2-3.8—
765 mb2410 m4.0-7.0—
754 mb2527 m3.8-20.2—
734 mb2743 m2.3-21.6005° 20 kt
724 mb2855 m1.4-21.6—
707 mb3048 m0.3-15.1015° 22 kt
700 mb3126 m0.0-17.0000° 21 kt
690 mb3241 m1.0-23.0—
676 mb3406 m1.4-23.6—
655 mb3658 m-0.3-23.0010° 16 kt
630 mb3962 m-2.4-22.2035° 16 kt
607 mb4263 m-4.5-21.5—
561 mb4877 m-8.6-27.4005° 21 kt
529 mb5331 m-11.7-31.7—
500 mb5760 m-15.1-33.1010° 27 kt
478 mb6096 m-17.0-41.4015° 28 kt
466 mb6289 m-18.1-46.1—
455 mb6467 m-19.3-46.3—
440 mb6706 m-21.3-47.3030° 25 kt
400 mb7410 m-27.1-50.1015° 23 kt
388 mb7620 m-28.9-50.0015° 22 kt
359 mb8177 m-33.7-49.7—
321 mb8951 m-39.1-55.1—
306 mb9276 m-41.3-60.3—
300 mb9410 m-42.1-59.1350° 23 kt
285 mb9754 m-44.0-62.1355° 20 kt
273 mb10046 m-45.7-64.7—
260 mb10363 m-47.7-64.3325° 25 kt
250 mb10630 m-48.9-66.9330° 32 kt
238 mb10953 m-49.5-67.5—
226 mb11292 m-50.5-72.5—
211 mb11741 m-51.5-74.5325° 27 kt
200 mb12090 m-50.1-78.1310° 22 kt
188 mb12497 m-50.8-79.2300° 20 kt
167 mb13261 m-52.3-81.3—
155 mb13740 m-53.5-82.5—
150 mb13950 m-55.1-83.1315° 31 kt
135 mb14620 m-55.9-83.9—
122 mb15240 m-60.6-84.7340° 21 kt
112 mb15785 m-63.3-85.3—
100 mb16480 m-63.9-87.9300° 25 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.