STORM MODEWeather tracking workspace

Tropical Storm Pena

Tropical Storm 46 mph (40 kt) · 1002 hPa · W at 7 mph (6 kt)

CPHC Best track · 12:00Z

Historical advisory selected · current imagery and impacts are not attached

Scripting is off: reload for updates. Advisory selection, comparison, forecast tables and every published product remain available. Watched places stay on your device and need scripting to be read.

CPHC forecast for Tropical Storm Pena, Best track; rendered by MaverickWX

Published advisory track · Best track

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

ⓘ About this map

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

Basemap

MaverickWX map · Data: NOAA/NHC · 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

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 ADN, 12Z. Its levels are in the table below. — Observed Sounding at ADN, for 12:00Z (9 h 11 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 (35)

ADN: the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
Pressure	Height	Temperature	Dew point	Wind
963 mb	448 m	15.6	15.5	340° 4 kt
946 mb	600 m	14.8	14.7	345° 19 kt
925 mb	792 m	15.0	14.9	345° 14 kt
913 mb	902 m	15.7	15.6	030° 8 kt
882 mb	1195 m	15.1	15.0	155° 8 kt
851 mb	1497 m	14.4	14.3	130° 16 kt
850 mb	1507 m	14.4	14.3	135° 16 kt
828 mb	1730 m	13.6	13.5	—
792 mb	2103 m	11.8	11.7	160° 23 kt
738 mb	2697 m	9.0	8.8	215° 19 kt
705 mb	3077 m	7.0	6.1	—
700 mb	3136 m	6.8	5.4	235° 19 kt
662 mb	3592 m	5.3	1.7	235° 19 kt
595 mb	4462 m	-0.5	-5.2	—
573 mb	4764 m	-0.5	-20.5	—
549 mb	5102 m	-2.8	-22.8	250° 25 kt
500 mb	5840 m	-7.9	-27.9	250° 33 kt
476 mb	6221 m	-10.1	-17.1	—
453 mb	6600 m	-12.6	-21.6	255° 27 kt
443 mb	6771 m	-13.7	-23.7	—
429 mb	7014 m	-15.3	-22.3	—
400 mb	7540 m	-18.5	-26.5	250° 37 kt
364 mb	8237 m	-23.7	-32.7	—
341 mb	8707 m	-27.4	-33.4	245° 49 kt
320 mb	9165 m	-30.9	-34.1	—
302 mb	9573 m	-34.1	-39.1	—
300 mb	9620 m	-34.5	-39.5	245° 51 kt
274 mb	10244 m	-39.9	-42.0	—
250 mb	10860 m	-45.3	-48.2	250° 60 kt
235 mb	11271 m	-48.1	-57.1	—
200 mb	12320 m	-54.1	-67.1	250° 56 kt
183 mb	12876 m	-57.2	-71.0	260° 56 kt
150 mb	14120 m	-64.7	-77.7	260° 60 kt
130 mb	14978 m	-70.8	-81.2	265° 56 kt
100 mb	16520 m	-75.9	-83.9	260° 27 kt

Every station with a sounding (75)

SPC observed soundings checked 21:00Z · Data: NOAA/SPC

Impacts

No supported U.S. monitoring area

Coastal alertsNot retained with this historical record 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

CPHC Best track · advisory 12:00Z · 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
06:00Z +0 h from forecast cycle	11.5°N, 154.7°W	Tropical storm	46 mph (40 kt)
09:00Z +3 h from forecast cycle	11.5°N, 155.0°W	Tropical storm	46 mph (40 kt)
18:00Z +12 h from forecast cycle	11.5°N, 156.3°W	Tropical storm	40 mph (35 kt)
9 Nov 06:00Z +24 h from forecast cycle	11.5°N, 158.1°W	Tropical storm	40 mph (35 kt)
9 Nov 18:00Z +36 h from forecast cycle	11.4°N, 160.3°W	Tropical storm	46 mph (40 kt)
10 Nov 06:00Z +48 h from forecast cycle	11.3°N, 162.5°W	Tropical storm	52 mph (45 kt)
10 Nov 18:00Z +60 h from forecast cycle	11.1°N, 164.4°W	Tropical storm	52 mph (45 kt)
11 Nov 06:00Z +72 h from forecast cycle	10.9°N, 166.4°W	Tropical storm	58 mph (50 kt)
12 Nov 06:00Z +96 h from forecast cycle	11.0°N, 172.0°W	Tropical storm	58 mph (50 kt)
13 Nov 06:00Z +120 h from forecast cycle	12.5°N, 177.4°W	Tropical storm	58 mph (50 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
CPHC Advisory 9 · 21:00Z	advisory	Snapshot 23b015f2
CPHC Unnumbered state · 18:00Z	advisory	Snapshot 7081a2c1
CPHC Advisory 8 · 15:00Z	advisory	Snapshot 9cccd530
CPHC Unnumbered state · 12:00Z	advisory	Snapshot 72fa3e5c · Selected
CPHC Advisory 7 · 09:00Z	advisory	Snapshot 9d4bd068
CPHC Unnumbered state · 06:00Z	advisory	Snapshot 34f11ed6
CPHC Advisory 6 · 03:00Z	advisory	Snapshot 7b6af387
CPHC Unnumbered state · 00:00Z	advisory	Snapshot feb3dd6a
CPHC Advisory 5 · 7 Nov 21:00Z	advisory	Snapshot 056a0eb5
CPHC Unnumbered state · 7 Nov 18:00Z	advisory	Snapshot e296178e
CPHC Advisory 4 · 7 Nov 15:00Z	advisory	Snapshot 8e23913e
CPHC Unnumbered state · 7 Nov 12:00Z	advisory	Snapshot 9ce314ee
CPHC Advisory 3 · 7 Nov 09:00Z	advisory	Snapshot f167fe92
CPHC Unnumbered state · 7 Nov 06:00Z	advisory	Snapshot b161830f
CPHC Advisory 2 · 7 Nov 03:00Z	advisory	Snapshot 6eb780c9
CPHC Unnumbered state · 7 Nov 00:00Z	advisory	Snapshot c16d8efc
CPHC Advisory 1 · 6 Nov 21:00Z	first	Snapshot 5be09be7

Monitoring geography

Area: None: no U.S. state or territory is under NHC’s coastal watches or warnings or inside the cone, Best track
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: CPHC’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 CPHC’s Best track (12:00Z). Not an official CPHC product. Data: NOAA/NHC. CPHC’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 CPHC’s Best track (12:00Z). Not an official CPHC product. Data: NOAA/NHC. CPHC’s own.

Satellite

The storm’s page shows it on the satellite, loaded by your browser.

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 Tropical Storm Pena, CPHC Best track

The models’ tracks, which are not a forecast, drawn by this site from CPHC’s Best track (12:00Z). Not an official CPHC product. Data: NOAA/NHC. CPHC’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.

Details

CPHC Best track · 12:00Z

Center position: 11.6°N, 155.6°W
Minimum pressure: 1002 hPa
Maximum sustained wind: 46 mph (40 kt)
Movement: W at 7 mph (6 kt)
Since the advisory compared: Wind 0 kt · pressure 0 hPa
Compared with Advisory 7 · 09:00Z

Read official track data ↗

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

Cached lightning observations have not loaded. An empty map is not zero lightning.

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

Interactive layer controls load on this device. Published products remain available below.

Advisory comparison

Show previous forecast as a dashed line

Solid: Best track · 12:00Z
Dashed: Advisory 7 · 09:00Z

Compare positions and intensity

Solid: CPHC Best track · 12:00Z
Dashed: CPHC Advisory 7 · 09:00Z. 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	46 mph (40 kt)	46 mph (40 kt)	0 kt
Minimum pressure	1002 hPa	1002 hPa	0 hPa
Center position	11.6°N, 155.6°W	11.5°N, 155.0°W	Different observation times; not a forecast shift

Official forecast revisions at matching valid times
Valid time	Selected position / wind	Previous position / wind
06:00Z	11.5°N, 154.7°W 46 mph (40 kt)	11.5°N, 154.7°W 46 mph (40 kt)
09:00Z	11.5°N, 155.0°W 46 mph (40 kt)	11.5°N, 155.0°W 46 mph (40 kt)
18:00Z	11.5°N, 156.3°W 40 mph (35 kt)	11.5°N, 156.3°W 40 mph (35 kt)
9 Nov 06:00Z	11.5°N, 158.1°W 40 mph (35 kt)	11.5°N, 158.1°W 40 mph (35 kt)
9 Nov 18:00Z	11.4°N, 160.3°W 46 mph (40 kt)	11.4°N, 160.3°W 46 mph (40 kt)
10 Nov 06:00Z	11.3°N, 162.5°W 52 mph (45 kt)	11.3°N, 162.5°W 52 mph (45 kt)
10 Nov 18:00Z	11.1°N, 164.4°W 52 mph (45 kt)	11.1°N, 164.4°W 52 mph (45 kt)
11 Nov 06:00Z	10.9°N, 166.4°W 58 mph (50 kt)	10.9°N, 166.4°W 58 mph (50 kt)
12 Nov 06:00Z	11.0°N, 172.0°W 58 mph (50 kt)	11.0°N, 172.0°W 58 mph (50 kt)
13 Nov 06:00Z	12.5°N, 177.4°W 58 mph (50 kt)	12.5°N, 177.4°W 58 mph (50 kt)

None: no U.S. state or territory is under NHC’s coastal watches or warnings or inside the cone, Best track. Current geographical context; these alerts are not attributed to the cyclone and are not part of the historical advisory.

Data coverage

NHC/CPHC track, coastal alerts, probabilities and wind timing retain separate coverage and issuance.

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

CPHC best track, as published checked 21:10Z
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 coverageTropical Storm Pena

Check local warning authorities.

21:11Z