STORM MODEWeather tracking workspace

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.

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

Choose product

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 Great Falls, MT (TFX), 12Z. Its levels are in the table below.
Observed Sounding at Great Falls, MT (TFX), 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 (60)
Great Falls, MT (TFX): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
890 mb1134 m7.6-1.4215° 11 kt
877 mb1254 m8.8-1.2—
863 mb1385 m7.9-2.1230° 25 kt
851 mb1499 m7.1-2.9230° 25 kt
850 mb1509 m7.0-3.0230° 24 kt
829 mb1714 m5.5-5.3225° 20 kt
791 mb2094 m3.4-10.8275° 17 kt
773 mb2280 m2.3-13.6295° 20 kt
751 mb2514 m1.0-17.1330° 15 kt
739 mb2644 m0.3-19.1330° 14 kt
700 mb3077 m-2.3-22.3305° 17 kt
674 mb3377 m-2.9-31.9—
660 mb3542 m-4.1-31.4290° 24 kt
650 mb3662 m-4.6-30.8290° 25 kt
638 mb3809 m-5.1-30.1—
607 mb4196 m-7.8-32.0285° 22 kt
585 mb4480 m-10.0-30.8285° 27 kt
560 mb4817 m-12.6-29.4265° 29 kt
550 mb4955 m-13.7-29.7—
529 mb5249 m-16.0-32.9265° 28 kt
515 mb5449 m-17.8-32.0260° 30 kt
500 mb5670 m-19.7-30.7265° 32 kt
490 mb5820 m-21.1-28.1—
480 mb5971 m-22.5-30.5—
464 mb6218 m-23.9-30.2275° 31 kt
434 mb6705 m-26.5-29.5255° 43 kt
411 mb7096 m-29.1-31.9—
400 mb7290 m-30.1-32.9265° 46 kt
388 mb7507 m-31.5-34.5—
378 mb7689 m-32.9-36.0270° 56 kt
356 mb8110 m-36.2-39.5270° 69 kt
338 mb8469 m-38.4-41.9270° 76 kt
322 mb8802 m-40.5-44.1—
309 mb9081 m-43.2-46.6265° 85 kt
300 mb9280 m-45.1-48.5265° 85 kt
287 mb9573 m-47.5-50.9—
277 mb9806 m-49.3-52.9—
261 mb10192 m-51.3-54.9265° 95 kt
251 mb10444 m-53.1-56.6265° 99 kt
250 mb10470 m-53.3-56.8265° 99 kt
235 mb10865 m-55.6-59.3265° 113 kt
222 mb11228 m-57.7-61.5—
210 mb11576 m-60.2-63.9270° 99 kt
200 mb11880 m-61.7-65.5265° 104 kt
189 mb12229 m-62.4-66.8265° 103 kt
154 mb13504 m-57.5-67.5260° 59 kt
150 mb13670 m-57.7-67.7265° 57 kt
135 mb14323 m-60.1-72.3280° 47 kt
121 mb15001 m-62.7-77.1270° 48 kt
109 mb15646 m-64.8-81.2280° 41 kt
100 mb16170 m-64.9-82.9285° 49 kt
89 mb16879 m-63.6-83.3265° 31 kt
78 mb17691 m-62.6-85.0245° 41 kt
67 mb18608 m-57.5-83.5—
57 mb19648 m-60.9-88.7275° 22 kt
46 mb20973 m-61.8-90.5265° 21 kt
36 mb22495 m-60.9-89.9325° 18 kt
26 mb24495 m-64.9-92.5300° 8 kt
16 mb27449 m-64.9-91.9295° 22 kt
12 mb29066 m-61.5-73.5—

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

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 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.

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 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.

Open the radar

Drawn live: if the radar fails, nothing older is shown in its place.

My places

Add a place

Saved places are read from this device after scripting starts.

Search for a place

Search stays in this browser. A town point is not an address; no address-level surge is calculated.

Outside NWS coverageTyphoon Cempaka
Check local warning authorities.