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Post-Tropical Cyclone Karina

40 kt · 46 mph · 998 hPa · WNW at 5 kt

Storm Mode · NHC Advisory 43 · 7 Sep 03:00Z

Final advisory · monitoring can continue

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NHC forecast for Post-Tropical Cyclone Karina, Advisory 43; rendered by MaverickWX

Published advisory track · Advisory 43

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The cone describes center uncertainty; impacts can extend outside it.

MaverickWX map · Data: NOAA/NHC · not an official graphic

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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 Great Falls, MT (TFX), 12Z. Its levels are in the table below. — Observed Sounding at Great Falls, MT (TFX), for 12:00Z (8 h 2 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 (47)

Great Falls, MT (TFX): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
Pressure	Height	Temperature	Dew point	Wind
896 mb	1134 m	-4.1	-5.9	250° 3 kt
874 mb	1334 m	0.6	-5.4	—
854 mb	1524 m	-0.3	-8.0	220° 15 kt
850 mb	1559 m	-0.5	-8.5	220° 15 kt
838 mb	1672 m	-1.5	-9.5	—
822 mb	1829 m	-2.4	-11.5	235° 9 kt
809 mb	1952 m	-3.1	-13.1	—
794 mb	2100 m	-3.5	-11.5	—
761 mb	2438 m	-4.9	-9.6	270° 20 kt
747 mb	2580 m	-5.5	-8.8	—
732 mb	2743 m	-5.7	-9.7	295° 22 kt
717 mb	2902 m	-6.3	-11.3	—
704 mb	3048 m	-7.0	-11.9	310° 23 kt
700 mb	3089 m	-7.1	-12.1	305° 22 kt
674 mb	3384 m	-7.7	-27.7	—
660 mb	3548 m	-7.3	-36.3	—
625 mb	3962 m	-10.0	-32.3	265° 28 kt
601 mb	4267 m	-12.0	-29.3	270° 28 kt
578 mb	4572 m	-13.9	-26.3	280° 32 kt
555 mb	4877 m	-15.6	-25.2	280° 30 kt
516 mb	5425 m	-18.5	-23.5	—
500 mb	5660 m	-18.9	-27.9	290° 36 kt
471 mb	6096 m	-21.6	-34.3	285° 38 kt
452 mb	6401 m	-23.7	-38.1	285° 38 kt
436 mb	6664 m	-25.7	-40.7	—
415 mb	7010 m	-28.6	-41.7	280° 41 kt
400 mb	7280 m	-30.9	-42.9	295° 42 kt
381 mb	7620 m	-34.0	-44.6	295° 40 kt
365 mb	7925 m	-36.6	-47.1	305° 38 kt
349 mb	8230 m	-39.3	-49.9	310° 39 kt
334 mb	8534 m	-42.0	-51.8	310° 44 kt
319 mb	8839 m	-44.7	-53.7	320° 45 kt
305 mb	9144 m	-47.4	-55.6	320° 49 kt
300 mb	9250 m	-48.3	-56.3	325° 54 kt
284 mb	9607 m	-50.9	-57.9	—
265 mb	10058 m	-54.6	-61.6	325° 44 kt
250 mb	10420 m	-57.1	-63.1	295° 32 kt
230 mb	10948 m	-54.3	-62.3	—
220 mb	11233 m	-53.3	-62.3	—
208 mb	11582 m	-51.7	-61.9	250° 40 kt
200 mb	11850 m	-50.9	-61.9	250° 38 kt
190 mb	12192 m	-50.9	-64.0	255° 43 kt
179 mb	12563 m	-52.3	-66.3	—
167 mb	13007 m	-51.3	-67.3	—
157 mb	13411 m	-46.8	-44.5	245° 51 kt
150 mb	13720 m	-23.5	-28.0	—
144 mb	14002 m	-51.9	—	—

Every station with a sounding (77)

SPC observed soundings checked 20:00Z · Data: NOAA/SPC

Storm details

NHC Advisory 43 · 7 Sep 03:00Z

Center position: 23.1°N, 146.2°W
Minimum pressure: 998 hPa
Maximum sustained wind: 40 kt · 46 mph
Movement: WNW at 5 kt
Since comparison advisory: Comparison unavailable

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Forecast cycle 7 Sep 00:00Z. Center position belongs to the official state’s time, not imagery time. The warning center issued its final advisory; continuing flood/rain monitoring does not imply a new cyclone forecast.

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Data coverage

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

Lightning activity — GOES GLM

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Impacts

No supported U.S. monitoring area

Coastal alertsCoastal alert data unavailable; not an all-clear 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

Current warnings in the monitoring area

None: no U.S. state or territory is under NHC’s coastal watches or warnings or inside the cone, Advisory 43. Current geographical context; these alerts are not attributed to the cyclone.

No U.S. area

No U.S. state or territory is under NHC’s coastal watches or warnings or inside the cone. The storm’s own panels are shown, and no NWS alert is listed.

Official forecast table

Forecast points

NHC Advisory 43 · advisory 7 Sep 03:00Z · forecast cycle 7 Sep 00:00Z. 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
7 Sep 00:00Z +0 h from forecast cycle	23.0°N, 145.7°W	tropical storm	40 kt · 46 mph
7 Sep 03:00Z +3 h from forecast cycle	23.1°N, 146.2°W	low	40 kt · 46 mph
7 Sep 12:00Z +12 h from forecast cycle	23.2°N, 147.6°W	low	35 kt · 40 mph
8 Sep 00:00Z +24 h from forecast cycle	23.7°N, 150.0°W	post tropical cyclone	30 kt · 35 mph

Advisory history and records

Advisory history

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Monitoring geography and current changes

Area: None: no U.S. state or territory is under NHC’s coastal watches or warnings or inside the cone, Advisory 43
Coastal watches and warnings: none in a U.S. state · Cone: crosses no U.S. state
Hazards: —
Window: In force now, with this advisory’s forecast
Made by: NHC’s own products, as this site’s pipeline published them, read again with each new advisory. 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 NHC’s Advisory 43 (03:00Z). Not an official NHC product. Data: NOAA/NHC. NHC’s own.

Wind speed probabilities

NHC’s wind speed probabilities are not reported for this advisory.

NHC’s coastal watches and warnings

The advisory’s watches and warnings are not reported.

Intensity forecast

The official intensity forecast, drawn by this site from NHC’s Advisory 43 (03:00Z). Not an official NHC product. Data: NOAA/NHC. NHC’s own.

Satellite

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Imagery from NASA GIBS: NOAA GOES and JMA Himawari.

Model guidance

The models’ tracks, which are not a forecast for Post-Tropical Cyclone Karina, NHC Advisory 43

The models’ tracks, which are not a forecast, drawn by this site from NHC’s Advisory 43 (03:00Z). Not an official NHC product. Data: NOAA/NHC. NHC’s own.

Radar

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Sources

NHC advisory, as published checked 20:00Z
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NWS coverage unavailablePost-Tropical Cyclone Karina · — alerts

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Not checked

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