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Typhoon Cempaka

Typhoon 109 mph (95 kt) · ENE at 13 mph (11 kt)

JTWC Warning 15 ·

Latest advisory

JTWC forecast for Typhoon Cempaka, Warning 15; rendered by MaverickWX
Published advisory track · Warning 15

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 Boise, ID (BOI), 12Z. Its levels are in the table below.
Observed Sounding at Boise, ID (BOI), for (8 h 41 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 (49)
Boise, ID (BOI): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
919 mb874 m6.6-1.4020° 1 kt
909 mb964 m8.4-1.6—
887 mb1169 m10.60.6—
877 mb1264 m10.41.4—
859 mb1436 m10.0-2.0—
850 mb1524 m9.6-1.4155° 20 kt
834 mb1682 m9.4-1.6—
824 mb1782 m9.2-3.8—
790 mb2134 m7.9-6.4215° 12 kt
776 mb2278 m7.0-7.0—
761 mb2438 m5.7-6.9240° 19 kt
735 mb2721 m3.4-6.6—
714 mb2955 m2.0-6.0—
700 mb3115 m1.2-9.8235° 22 kt
681 mb3336 m0.0-18.0—
664 mb3538 m-1.1-22.1—
654 mb3659 m-1.7-17.7235° 29 kt
606 mb4267 m-5.0-12.0255° 32 kt
588 mb4499 m-6.3-11.3—
562 mb4852 m-7.7-18.7—
552 mb4991 m-8.5-17.5—
541 mb5147 m-9.7-19.7—
514 mb5540 m-12.7-19.7—
500 mb5750 m-14.3-23.3240° 48 kt
483 mb6011 m-16.5-28.5—
437 mb6755 m-21.1-40.1—
422 mb7010 m-23.1-35.6250° 65 kt
400 mb7400 m-26.3-39.3250° 63 kt
388 mb7620 m-27.8-41.5250° 62 kt
369 mb7980 m-29.9-47.9—
350 mb8355 m-33.3-44.3—
336 mb8641 m-35.5-46.5—
321 mb8957 m-38.5-42.5—
306 mb9285 m-40.7-45.2—
300 mb9420 m-42.1-46.0255° 72 kt
287 mb9716 m-44.5-48.0—
260 mb10366 m-49.3-54.3—
250 mb10620 m-51.3-55.3250° 82 kt
208 mb11796 m-61.3-66.1—
200 mb12040 m-63.1-68.1250° 81 kt
190 mb12354 m-65.1-71.1250° 85 kt
179 mb12717 m-65.1-70.1—
168 mb13106 m-65.8-74.2245° 77 kt
150 mb13790 m-65.3-80.3260° 63 kt
134 mb14477 m-64.1-83.1—
124 mb14950 m-64.5-83.5—
112 mb15545 m-67.7-84.9255° 40 kt
102 mb16154 m-66.0-85.8265° 56 kt
100 mb16250 m-66.1-86.1250° 43 kt

SPC observed soundings checked · Data: NOAA/SPC

Impacts

No supported U.S. monitoring area
Official forecast table

Forecast points

JTWC Warning 15 · 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
25.5°N, 139.7°ETyphoon109 mph (95 kt)

+24 h from forecast cycle
26.6°N, 143.7°ETyphoon98 mph (85 kt)

+36 h from forecast cycle
28.0°N, 148.5°ETyphoon81 mph (70 kt)

+48 h from forecast cycle
29.0°N, 153.4°ETropical storm63 mph (55 kt)

+60 h from forecast cycle
29.2°N, 157.5°ETropical storm52 mph (45 kt)
Advisory history and records

Advisory history

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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 15
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 Typhoon Cempaka, JTWC Warning 15

The official forecast track, drawn by this site from JTWC’s Warning 15 (). Not an official JTWC product. Data: JTWC. JTWC’s own.

Intensity forecast

The official intensity forecast for Typhoon Cempaka, JTWC Warning 15

The official intensity forecast, drawn by this site from JTWC’s Warning 15 (). 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 4° from the storm's meridian.

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Imagery from NASA GIBS: NOAA GOES and JMA Himawari.

Model guidance

The models’ tracks, which are not a forecast for Typhoon Cempaka, JTWC Warning 15

The models’ tracks, which are not a forecast, drawn by this site from JTWC’s Warning 15 (). 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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Outside NWS coverageTyphoon Cempaka
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