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Tropical Storm Pena

Tropical Storm 58 mph (50 kt) · 993 hPa · WNW at 9 mph (8 kt)

CPHC Best track · 8 Nov 00:00Z

Historical advisory selected · current imagery and impacts are not attached

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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

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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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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 Grand Junction, CO (GJT), 00Z. Its levels are in the table below. — Observed Sounding at Grand Junction, CO (GJT), for 00:00Z (4 h 22 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 (55)

Grand Junction, CO (GJT): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
Pressure	Height	Temperature	Dew point	Wind
859 mb	1475 m	15.2	4.2	290° 3 kt
850 mb	1563 m	13.2	4.2	315° 7 kt
839 mb	1672 m	12.2	4.2	—
826 mb	1803 m	11.8	3.0	305° 9 kt
811 mb	1956 m	10.7	1.7	320° 8 kt
797 mb	2101 m	10.7	0.7	305° 7 kt
780 mb	2280 m	9.4	0.4	—
769 mb	2398 m	9.0	-1.9	355° 4 kt
757 mb	2528 m	8.6	-4.4	—
734 mb	2780 m	6.4	-5.0	040° 8 kt
714 mb	3006 m	4.4	-5.6	055° 9 kt
703 mb	3133 m	3.3	-5.9	035° 11 kt
700 mb	3168 m	3.0	-6.0	035° 12 kt
673 mb	3484 m	0.1	-7.3	015° 13 kt
663 mb	3604 m	-0.8	-9.0	020° 12 kt
642 mb	3860 m	-1.8	-15.4	005° 11 kt
624 mb	4085 m	-2.8	-21.0	000° 13 kt
610 mb	4266 m	-3.5	-25.5	—
596 mb	4448 m	-5.0	-27.8	000° 22 kt
586 mb	4581 m	-5.5	-30.5	—
571 mb	4784 m	-5.1	-32.0	005° 20 kt
549 mb	5088 m	-7.4	-32.7	010° 24 kt
517 mb	5552 m	-11.1	-33.6	005° 22 kt
502 mb	5779 m	-12.9	-34.0	005° 26 kt
500 mb	5810 m	-13.1	-34.1	005° 26 kt
485 mb	6042 m	-15.0	-36.0	355° 25 kt
471 mb	6264 m	-16.9	-37.9	005° 19 kt
457 mb	6490 m	-18.9	-38.9	355° 23 kt
436 mb	6836 m	-21.9	-40.8	350° 18 kt
411 mb	7270 m	-25.6	-43.2	325° 23 kt
400 mb	7470 m	-27.3	-44.3	335° 22 kt
387 mb	7705 m	-29.3	-45.6	335° 25 kt
376 mb	7910 m	-31.0	-46.7	330° 21 kt
365 mb	8121 m	-32.8	-47.9	325° 20 kt
354 mb	8334 m	-34.5	-48.6	300° 21 kt
343 mb	8551 m	-36.2	-48.4	295° 24 kt
328 mb	8858 m	-38.6	-48.1	275° 27 kt
315 mb	9135 m	-40.8	-47.8	280° 34 kt
300 mb	9470 m	-43.5	-47.5	275° 35 kt
280 mb	9929 m	-46.9	-50.2	265° 43 kt
266 mb	10267 m	-49.3	-52.6	—
255 mb	10541 m	-51.2	-54.6	260° 49 kt
250 mb	10670 m	-52.1	-55.5	260° 52 kt
237 mb	11013 m	-54.9	-58.2	260° 52 kt
222 mb	11427 m	-57.9	-60.6	260° 57 kt
211 mb	11746 m	-59.7	-63.0	—
200 mb	12080 m	-60.3	-63.5	270° 54 kt
186 mb	12532 m	-60.9	-65.8	275° 46 kt
174 mb	12947 m	-61.1	-67.2	280° 52 kt
163 mb	13353 m	-60.9	-68.7	290° 45 kt
150 mb	13870 m	-60.1	-70.1	300° 44 kt
136 mb	14479 m	-61.3	-72.3	300° 37 kt
123 mb	15095 m	-62.9	-75.8	305° 41 kt
109 mb	15837 m	-64.9	-79.9	300° 40 kt
100 mb	16360 m	-66.5	-82.5	315° 36 kt

Every station with a sounding (76)

SPC observed soundings checked 04:15Z · 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 8 Nov 00:00Z · forecast cycle 7 Nov 18:00Z. 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 Nov 18:00Z +0 h from forecast cycle	11.4°N, 153.5°W	Tropical storm	52 mph (45 kt)
7 Nov 21:00Z +3 h from forecast cycle	11.5°N, 153.9°W	Tropical storm	52 mph (45 kt)
8 Nov 06:00Z +12 h from forecast cycle	11.6°N, 155.1°W	Tropical storm	63 mph (55 kt)
8 Nov 18:00Z +24 h from forecast cycle	11.6°N, 156.8°W	Tropical storm	63 mph (55 kt)
9 Nov 06:00Z +36 h from forecast cycle	11.5°N, 158.7°W	Tropical storm	69 mph (60 kt)
9 Nov 18:00Z +48 h from forecast cycle	11.5°N, 160.8°W	Tropical storm	69 mph (60 kt)
10 Nov 06:00Z +60 h from forecast cycle	11.5°N, 162.9°W	Tropical storm	69 mph (60 kt)
10 Nov 18:00Z +72 h from forecast cycle	11.8°N, 165.0°W	Tropical storm	69 mph (60 kt)
18:00Z +96 h from forecast cycle	12.7°N, 170.5°W	Hurricane	75 mph (65 kt)
12 Nov 18:00Z +120 h from forecast cycle	14.5°N, 177.7°W	Hurricane	75 mph (65 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 18 · 03:00Z	advisory	Snapshot 73e56ebc
CPHC Unnumbered state · 00:00Z	advisory	Snapshot 0349dae4
CPHC Advisory 17 · 10 Nov 21:00Z	advisory	Snapshot 323daddf
CPHC Unnumbered state · 10 Nov 18:00Z	advisory	Snapshot ccf21749
CPHC Advisory 16 · 10 Nov 15:00Z	advisory	Snapshot d4220ca3
CPHC Unnumbered state · 10 Nov 12:00Z	advisory	Snapshot 1b3d972c
CPHC Advisory 15 · 10 Nov 09:00Z	advisory	Snapshot d09d1ec3
CPHC Unnumbered state · 10 Nov 06:00Z	advisory	Snapshot 0abb013b
CPHC Advisory 14 · 10 Nov 03:00Z	advisory	Snapshot 6ab29e69
CPHC Unnumbered state · 10 Nov 00:00Z	advisory	Snapshot 0bcec4c9
CPHC Advisory 13 · 9 Nov 21:00Z	advisory	Snapshot f9ae50f7
CPHC Unnumbered state · 9 Nov 18:00Z	advisory	Snapshot 7c8b78ee
CPHC Advisory 12 · 9 Nov 15:00Z	advisory	Snapshot 0a3a81cd
CPHC Unnumbered state · 9 Nov 12:00Z	advisory	Snapshot 20477de4
CPHC Advisory 11 · 9 Nov 09:00Z	advisory	Snapshot 1dbe26fd
CPHC Unnumbered state · 9 Nov 06:00Z	advisory	Snapshot 5f4e816f
CPHC Advisory 10 · 9 Nov 03:00Z	advisory	Snapshot 0bcae4ab
CPHC Unnumbered state · 9 Nov 00:00Z	advisory	Snapshot d9b6706d
CPHC Advisory 9 · 8 Nov 21:00Z	advisory	Snapshot 23b015f2
CPHC Unnumbered state · 8 Nov 18:00Z	advisory	Snapshot 7081a2c1
CPHC Advisory 8 · 8 Nov 15:00Z	advisory	Snapshot 9cccd530
CPHC Unnumbered state · 8 Nov 12:00Z	advisory	Snapshot 72fa3e5c
CPHC Advisory 7 · 8 Nov 09:00Z	advisory	Snapshot 9d4bd068
CPHC Unnumbered state · 8 Nov 06:00Z	advisory	Snapshot 34f11ed6
CPHC Advisory 6 · 8 Nov 03:00Z	advisory	Snapshot 7b6af387
CPHC Unnumbered state · 8 Nov 00:00Z	advisory	Snapshot feb3dd6a · Selected
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 (00:00Z). 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 (00:00Z). 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.

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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 (00:00Z). 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.

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Details

CPHC Best track · 8 Nov 00:00Z

Center position: 11.4°N, 154.1°W
Minimum pressure: 993 hPa
Maximum sustained wind: 58 mph (50 kt)
Movement: WNW at 9 mph (8 kt)
Since the advisory compared: Wind +5 kt · pressure -5 hPa
Compared with Advisory 5 · 7 Nov 21:00Z

Read official track data ↗

Forecast cycle 7 Nov 18:00Z. 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

Show previous forecast as a dashed line

Solid: Best track · 8 Nov 00:00Z
Dashed: Advisory 5 · 7 Nov 21:00Z

Compare positions and intensity

Solid: CPHC Best track · 8 Nov 00:00Z
Dashed: CPHC Advisory 5 · 7 Nov 21:00Z. 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	58 mph (50 kt)	52 mph (45 kt)	+5 kt
Minimum pressure	993 hPa	998 hPa	-5 hPa
Center position	11.4°N, 154.1°W	11.5°N, 153.9°W	Different observation times; not a forecast shift

Official forecast revisions at matching valid times
Valid time	Selected position / wind	Previous position / wind
7 Nov 18:00Z	11.4°N, 153.5°W 52 mph (45 kt)	11.4°N, 153.5°W 52 mph (45 kt)
7 Nov 21:00Z	11.5°N, 153.9°W 52 mph (45 kt)	11.5°N, 153.9°W 52 mph (45 kt)
8 Nov 06:00Z	11.6°N, 155.1°W 63 mph (55 kt)	11.6°N, 155.1°W 63 mph (55 kt)
8 Nov 18:00Z	11.6°N, 156.8°W 63 mph (55 kt)	11.6°N, 156.8°W 63 mph (55 kt)
9 Nov 06:00Z	11.5°N, 158.7°W 69 mph (60 kt)	11.5°N, 158.7°W 69 mph (60 kt)
9 Nov 18:00Z	11.5°N, 160.8°W 69 mph (60 kt)	11.5°N, 160.8°W 69 mph (60 kt)
10 Nov 06:00Z	11.5°N, 162.9°W 69 mph (60 kt)	11.5°N, 162.9°W 69 mph (60 kt)
10 Nov 18:00Z	11.8°N, 165.0°W 69 mph (60 kt)	11.8°N, 165.0°W 69 mph (60 kt)
18:00Z	12.7°N, 170.5°W 75 mph (65 kt)	12.7°N, 170.5°W 75 mph (65 kt)
12 Nov 18:00Z	14.5°N, 177.7°W 75 mph (65 kt)	14.5°N, 177.7°W 75 mph (65 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 04:20Z
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

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04:22Z