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Typhoon Cempaka

Typhoon 104 mph (90 kt) · 964 hPa · ENE at 21 mph (18 kt)

JTWC Warning 17 · 06:00Z

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JTWC forecast for Typhoon Cempaka, Warning 17; rendered by MaverickWX

Published advisory track · Warning 17

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JTWC does not publish an NHC cone.

Basemap

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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.

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Analysis

Area, source times and interpretation

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Soundings: what weather balloons measured

SPC’s skew-T diagram and hodograph of the sounding at Shreveport, LA (SHV), 00Z. Its levels are in the table below. — Observed Sounding at Shreveport, LA (SHV), for 00:00Z (9 h 48 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 (61)

Shreveport, LA (SHV): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
Pressure	Height	Temperature	Dew point	Wind
1012 mb	79 m	18.6	12.6	calm
1000 mb	184 m	18.4	12.4	190° 5 kt
988 mb	288 m	17.8	11.8	—
951 mb	610 m	15.1	10.1	330° 4 kt
929 mb	811 m	13.4	9.1	—
925 mb	847 m	13.2	9.0	300° 6 kt
913 mb	957 m	13.2	8.3	—
890 mb	1172 m	12.6	8.8	—
874 mb	1324 m	11.8	7.1	—
860 mb	1460 m	12.6	5.6	—
850 mb	1558 m	12.4	6.4	275° 8 kt
834 mb	1717 m	12.0	4.0	—
823 mb	1829 m	11.3	4.0	270° 11 kt
793 mb	2134 m	9.4	4.0	285° 9 kt
772 mb	2360 m	8.6	2.6	—
758 mb	2512 m	7.4	2.4	—
737 mb	2743 m	6.5	2.4	275° 8 kt
710 mb	3048 m	4.5	1.3	280° 13 kt
700 mb	3164 m	4.2	0.9	275° 14 kt
683 mb	3364 m	2.8	0.2	—
659 mb	3658 m	1.7	-2.2	245° 16 kt
634 mb	3962 m	0.5	-4.7	240° 19 kt
621 mb	4131 m	-0.1	-6.1	—
611 mb	4267 m	-1.2	-6.7	225° 14 kt
588 mb	4572 m	-3.4	-9.2	235° 10 kt
573 mb	4770 m	-4.9	-8.5	—
561 mb	4936 m	-6.1	-11.1	—
544 mb	5182 m	-7.4	-11.9	220° 11 kt
530 mb	5379 m	-8.7	-12.5	—
503 mb	5791 m	-9.8	-18.4	235° 9 kt
500 mb	5830 m	-9.9	-18.9	235° 9 kt
483 mb	6096 m	-11.2	-20.4	235° 10 kt
467 mb	6354 m	-13.1	-21.1	—
447 mb	6685 m	-15.9	-23.9	—
428 mb	7010 m	-18.8	-24.9	265° 16 kt
411 mb	7315 m	-21.5	-25.9	250° 24 kt
400 mb	7510 m	-23.3	-26.8	255° 28 kt
378 mb	7925 m	-26.4	-38.3	245° 41 kt
362 mb	8230 m	-28.7	-46.7	250° 46 kt
347 mb	8534 m	-31.2	-39.2	245° 49 kt
332 mb	8839 m	-32.8	-37.4	230° 48 kt
318 mb	9144 m	-34.1	-37.0	225° 50 kt
302 mb	9504 m	-36.9	-40.0	—
300 mb	9550 m	-37.3	-40.4	225° 58 kt
279 mb	10058 m	-41.6	-45.0	225° 57 kt
266 mb	10363 m	-43.7	-47.6	230° 68 kt
255 mb	10668 m	-45.6	-52.4	230° 66 kt
250 mb	10790 m	-46.3	-54.3	240° 56 kt
232 mb	11278 m	-49.5	-59.5	250° 55 kt
221 mb	11582 m	-50.5	-61.3	255° 51 kt
211 mb	11887 m	-51.9	-63.8	255° 40 kt
200 mb	12240 m	-52.9	-64.9	260° 39 kt
183 mb	12802 m	-56.3	-68.3	255° 41 kt
166 mb	13411 m	-59.5	-70.5	255° 43 kt
156 mb	13808 m	-61.7	-72.7	—
150 mb	14050 m	-62.9	-73.9	260° 47 kt
136 mb	14630 m	-65.4	-75.5	255° 45 kt
123 mb	15240 m	-67.8	-77.5	260° 52 kt
111 mb	15850 m	-70.6	-79.6	285° 50 kt
101 mb	16459 m	-71.8	-81.8	290° 31 kt
100 mb	16490 m	-71.9	-81.9	250° 26 kt

Every station with a sounding (76)

SPC observed soundings checked 09:45Z · Data: NOAA/SPC

Impacts

No supported U.S. monitoring area

Coastal alertsLocal national warning authorities apply Flooding rainOfficial rainfall context and coverage Storm surgeAvailability and coastal-only product limits Warnings in monitored areaNWS coverage unavailable here; not a global all-clear

Official forecast table

Forecast points

JTWC Warning 17 · advisory 06:00Z · forecast cycle 06:00Z. Forecast positions are future estimates, not observed imagery. Classification is shown only where published.

Published official forecast; no interpolated positions or winds
Valid time / lead	Position	Classification	Sustained wind
18:00Z +12 h from forecast cycle	26.6°N, 144.0°E	Typhoon	92 mph (80 kt)
11 Nov 06:00Z +24 h from forecast cycle	28.1°N, 148.9°E	Typhoon	81 mph (70 kt)
11 Nov 18:00Z +36 h from forecast cycle	29.5°N, 154.4°E	Tropical storm	63 mph (55 kt)
12 Nov 06:00Z +48 h from forecast cycle	30.9°N, 160.3°E	Tropical storm	52 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.

Advisory history; retained records only
Official issuance	Revision kind	Record
JTWC Warning 17 · 06:00Z	advisory	Snapshot 17571fa4 · Selected
JTWC Warning 16 · 00:00Z	advisory	Snapshot 5d7e3d7e
JTWC Warning 15 · 9 Nov 18:00Z	advisory	Snapshot c752b70f
JTWC Warning 14 · 9 Nov 12:00Z	advisory	Snapshot 311990a5
JTWC Warning 13 · 9 Nov 06:00Z	advisory	Snapshot 07c0ce17
JTWC Warning 12 · 9 Nov 00:00Z	advisory	Snapshot 5bfaa1fd
JTWC Warning 11 · 8 Nov 18:00Z	advisory	Snapshot 2246b2a9
JTWC Warning 10 · 8 Nov 12:00Z	advisory	Snapshot d2af0300
JTWC Warning 9 · 8 Nov 06:00Z	advisory	Snapshot d9150cf8
JTWC Warning 8 · 8 Nov 00:00Z	advisory	Snapshot 70a99d6f
JTWC Warning 7 · 7 Nov 18:00Z	advisory	Snapshot 8017732a
JTWC Warning 6 · 7 Nov 12:00Z	advisory	Snapshot 1d3d7ebb
JTWC Warning 5 · 7 Nov 06:00Z	advisory	Snapshot 70f8e842
JTWC Warning 4 · 7 Nov 00:00Z	advisory	Snapshot f9baa0bb
JTWC Warning 3 · 6 Nov 18:00Z	advisory	Snapshot dd0679d9
JTWC Warning 2 · 6 Nov 12:00Z	advisory	Snapshot 6bf2dbf6
JTWC Warning 1 · 6 Nov 06:00Z	first	Snapshot 858bb03c

Monitoring geography

Area: None: JTWC’s forecast track passes within 300 nm of no U.S. territory with NWS zones, Warning 17
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, drawn by this site from JTWC’s Warning 17 (06:00Z). Not an official JTWC product. Data: JTWC. JTWC’s own.

Intensity forecast

The official intensity forecast, drawn by this site from JTWC’s Warning 17 (06:00Z). 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 1° 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 17

The models’ tracks, which are not a forecast, drawn by this site from JTWC’s Warning 17 (06:00Z). 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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Details

JTWC Warning 17 · 06:00Z

Center position: 25.4°N, 139.9°E
Minimum pressure: 964 hPa
Maximum sustained wind: 104 mph (90 kt)
Movement: ENE at 21 mph (18 kt)
Since the advisory compared: Wind -5 kt · pressure Not comparable
Compared with Warning 16 · 00:00Z

Read official warning (JTWC) ↗

Forecast cycle 06:00Z. Center position belongs to the official state’s time, not imagery time.

Map layers

Lightning activity — GOES GLM

Public event region Aggregation interval Show density on map

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Coverage and interpretation

Total lightning, including in-cloud activity. Not ground-strike locations or a safe-to-go-outside signal.

Cached lightning source details and text readings

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Advisory comparison

Compare with

Show previous forecast as a dashed line

Solid: Warning 17 · 06:00Z
Dashed: Warning 16 · 00:00Z

Compare positions and intensity

Solid: JTWC Warning 17 · 06:00Z
Dashed: JTWC Warning 16 · 00:00Z. Comparison uses each record’s own geometry. A revision is not a landfall or impact prediction.

Current-state revision (two separate official issuances)
Field	Selected issuance	Comparison issuance	Change
Maximum sustained wind	104 mph (90 kt)	109 mph (95 kt)	-5 kt
Minimum pressure	964 hPa	Not reported	Not comparable
Center position	25.4°N, 139.9°E	25.0°N, 138.0°E	Different observation times; not a forecast shift

Forecast comparison unavailable: these records have no matching forecast valid times. No interpolation or six-hour step is assumed.

None: JTWC’s forecast track passes within 300 nm of no U.S. territory with NWS zones, Warning 17. Current geographical context; these alerts are not attributed to the cyclone.

Data coverage

JTWC has no NHC cone, NHC wind probabilities or NHC civil coastal warnings. Local national services remain the warning authorities.

Geographic context: Natural Earth boundaries and representative place labels. Radar coverage is limited offshore. Satellite pixels keep their source palette and actual observation time. Missing imagery is not clear weather.

No supported U.S. NWS monitoring area for this advisory. This does not mean no warnings worldwide.

Sources

JTWC warning, as published checked 09:47Z
Radar live tiles, no last-good copy

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.

Outside NWS coverageTyphoon Cempaka

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09:48Z