STORM MODEWeather tracking workspace

Tropical Storm Cempaka

Tropical Storm 69 mph (60 kt) · 992 hPa · WNW at 20 mph (17 kt)

JTWC Warning 7 ·

Historical advisory selected · current imagery and impacts are not attached

JTWC forecast for Tropical Storm Cempaka, Warning 7; rendered by MaverickWX
Published advisory track · Warning 7

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

ⓘ About this map

JTWC does not publish an NHC cone.

Basemap

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.

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Analysis

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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 Pickle Lake, Ontario (WPL), 00Z. Its levels are in the table below.
Observed Sounding at Pickle Lake, Ontario (WPL), for (10 h 16 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 (56)
Pickle Lake, Ontario (WPL): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
960 mb386 m3.61.2110° 2 kt
935 mb610 m3.20.9245° 4 kt
925 mb698 m3.00.8280° 8 kt
910 mb830 m3.01.1—
867 mb1219 m0.4-0.2290° 25 kt
850 mb1379 m-0.7-0.7285° 28 kt
835 mb1524 m-1.6-1.6285° 28 kt
803 mb1829 m-3.6-3.6280° 26 kt
793 mb1931 m-1.5-2.2—
773 mb2134 m-2.0-3.6295° 25 kt
762 mb2248 m-2.3-4.4—
744 mb2438 m-3.9-5.5300° 23 kt
716 mb2743 m-6.5-7.2305° 25 kt
700 mb2916 m-7.9-8.2300° 26 kt
688 mb3048 m-9.1-9.1295° 23 kt
674 mb3209 m-9.9-14.1—
662 mb3353 m-11.0-15.6310° 23 kt
646 mb3536 m-11.5-21.5—
636 mb3658 m-12.6-21.9285° 27 kt
589 mb4236 m-17.5-23.5—
561 mb4599 m-20.5-27.5—
540 mb4877 m-22.6-35.6295° 21 kt
500 mb5440 m-27.5-38.5290° 25 kt
471 mb5866 m-31.5-40.5—
456 mb6096 m-33.2-42.2310° 23 kt
400 mb7000 m-39.9-48.9275° 22 kt
388 mb7208 m-40.7-54.7—
365 mb7620 m-43.2-59.6280° 25 kt
349 mb7925 m-43.7-62.5280° 22 kt
333 mb8230 m-43.3-65.1240° 11 kt
319 mb8534 m-43.7-66.9230° 20 kt
300 mb8940 m-44.3-69.3235° 26 kt
265 mb9754 m-46.5-70.8270° 27 kt
253 mb10058 m-47.3-71.3275° 24 kt
250 mb10150 m-47.5-71.5270° 19 kt
231 mb10668 m-48.6-73.5255° 23 kt
221 mb10973 m-49.3-74.6255° 31 kt
206 mb11426 m-50.3-76.3—
200 mb11620 m-49.5-77.5260° 44 kt
187 mb12058 m-49.1-77.1—
175 mb12497 m-50.1-78.7280° 51 kt
159 mb13106 m-52.8-80.4295° 35 kt
150 mb13480 m-55.1-81.1285° 31 kt
138 mb14021 m-55.0-82.0250° 27 kt
119 mb14935 m-56.7-83.7295° 32 kt
109 mb15511 m-53.9-83.9—
100 mb16060 m-56.7-84.7300° 26 kt
90 mb16764 m-52.6-83.3260° 21 kt
78 mb17678 m-57.9-85.8305° 14 kt
67 mb18593 m-58.0-86.7260° 13 kt
55 mb19812 m-60.6-87.5270° 10 kt
43 mb21336 m-62.0-88.5310° 8 kt
32 mb23165 m-61.6-89.3310° 10 kt
21 mb25908 m-63.4-90.3350° 11 kt
10 mb30175 m-65.8-91.7320° 18 kt
4 mb35674 m-54.1-84.1—

SPC observed soundings checked · Data: NOAA/SPC

Impacts

No supported U.S. monitoring area
Official forecast table

Forecast points

JTWC Warning 7 · 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
22.1°N, 137.3°ETyphoon81 mph (70 kt)

+24 h from forecast cycle
23.1°N, 135.1°ETyphoon98 mph (85 kt)

+36 h from forecast cycle
23.9°N, 134.6°ETyphoon115 mph (100 kt)

+48 h from forecast cycle
24.5°N, 135.9°ETyphoon109 mph (95 kt)

+60 h from forecast cycle
25.2°N, 138.5°ETyphoon98 mph (85 kt)

+72 h from forecast cycle
26.1°N, 142.1°ETyphoon81 mph (70 kt)

+96 h from forecast cycle
27.5°N, 148.8°ETropical storm52 mph (45 kt)
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.

Monitoring geography
Area
None: JTWC’s forecast track passes within 300 nm of no U.S. territory with NWS zones, Warning 7
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 Storm Cempaka, JTWC Warning 7

The official forecast track, drawn by this site from JTWC’s Warning 7 (). Not an official JTWC product. Data: JTWC. JTWC’s own.

Intensity forecast

The official intensity forecast for Tropical Storm Cempaka, JTWC Warning 7

The official intensity forecast, drawn by this site from JTWC’s Warning 7 (). 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 Storm Cempaka, JTWC Warning 7

The models’ tracks, which are not a forecast, drawn by this site from JTWC’s Warning 7 (). 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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Drawn live: if the radar fails, nothing older is shown in its place.

My places

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Outside NWS coverageTropical Storm Cempaka
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