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Tropical Storm Pena

Tropical Storm 46 mph (40 kt) · 1002 hPa · W at 12 mph (10 kt)

CPHC Advisory 2 ·

Latest advisory

CPHC forecast for Tropical Storm Pena, Advisory 2; rendered by MaverickWX
Published advisory track · Advisory 2

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.

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Analysis

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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 Oakland, CA (OAK), 00Z. Its levels are in the table below.
Observed Sounding at Oakland, CA (OAK), for (6 h 19 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)
Oakland, CA (OAK): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
1019 mb3 m21.69.6285° 7 kt
1005 mb121 m20.07.0—
1000 mb164 m19.66.6295° 8 kt
985 mb294 m19.24.2—
949 mb610 m18.03.3000° 7 kt
925 mb832 m17.6-7.4355° 10 kt
884 mb1219 m16.5-20.9005° 15 kt
853 mb1524 m15.5-11.7355° 17 kt
850 mb1551 m15.4-10.6015° 15 kt
822 mb1829 m14.6-6.6025° 14 kt
810 mb1958 m14.2-4.8—
795 mb2115 m13.4-15.6—
765 mb2437 m12.0-4.0—
737 mb2743 m9.8-5.4000° 18 kt
700 mb3173 m6.6-7.4355° 19 kt
660 mb3658 m3.9-19.1005° 15 kt
648 mb3801 m3.0-14.0—
634 mb3977 m1.8-13.2—
611 mb4267 m-0.7-13.4005° 20 kt
589 mb4564 m-3.1-15.1—
579 mb4699 m-3.9-16.9—
566 mb4877 m-5.1-16.1355° 23 kt
544 mb5182 m-7.1-14.8345° 27 kt
521 mb5523 m-8.7-20.7—
503 mb5791 m-11.1-19.9320° 26 kt
500 mb5840 m-11.5-20.5315° 25 kt
484 mb6096 m-13.5-25.5315° 20 kt
467 mb6360 m-15.7-28.7—
455 mb6555 m-16.9-25.9—
445 mb6722 m-18.3-29.3—
430 mb6977 m-19.9-30.9—
418 mb7186 m-21.7-30.7—
400 mb7510 m-23.3-32.3295° 24 kt
382 mb7846 m-26.3-33.3—
368 mb8116 m-27.3-45.3—
356 mb8355 m-28.5-47.5—
300 mb9560 m-38.1-51.1325° 20 kt
289 mb9816 m-40.3-46.3—
277 mb10104 m-42.7-51.7—
267 mb10351 m-44.1-50.1—
250 mb10790 m-47.3-53.3325° 30 kt
238 mb11113 m-49.9-54.3—
225 mb11477 m-52.5-56.4—
214 mb11799 m-54.1-64.1—
204 mb12104 m-55.3-70.3—
200 mb12230 m-55.9-70.9330° 43 kt
169 mb13291 m-60.1-76.1—
150 mb14030 m-62.7-80.7325° 33 kt
140 mb14454 m-64.1-82.1—
129 mb14935 m-67.1-83.3315° 19 kt
117 mb15539 m-67.1-85.1—
106 mb16133 m-69.3-86.3—
100 mb16480 m-70.9-86.9280° 26 kt
89 mb17198 m-70.7-86.7—
77 mb18026 m-71.9-87.7305° 11 kt
67 mb18852 m-68.0-89.3280° 11 kt
47 mb20988 m-64.7-88.7280° 11 kt
37 mb22447 m-65.2-89.5305° 14 kt
26 mb24566 m-61.1-88.1—
16 mb27626 m-61.0-88.1270° 33 kt
8 mb31954 m-51.9-83.9270° 81 kt

SPC observed soundings checked · Data: NOAA/SPC

Impacts

No supported U.S. monitoring area
Official forecast table

Forecast points

CPHC Advisory 2 · 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

+0 h from forecast cycle
11.2°N, 150.6°WTropical storm46 mph (40 kt)

+3 h from forecast cycle
11.2°N, 151.1°WTropical storm46 mph (40 kt)

+12 h from forecast cycle
11.4°N, 152.7°WTropical storm58 mph (50 kt)

+24 h from forecast cycle
11.3°N, 154.7°WTropical storm63 mph (55 kt)

+36 h from forecast cycle
11.3°N, 156.7°WTropical storm69 mph (60 kt)

+48 h from forecast cycle
11.3°N, 158.3°WTropical storm69 mph (60 kt)

+60 h from forecast cycle
11.3°N, 160.0°WTropical storm69 mph (60 kt)

+72 h from forecast cycle
11.4°N, 161.8°WTropical storm69 mph (60 kt)

+96 h from forecast cycle
11.7°N, 165.9°WHurricane75 mph (65 kt)

+120 h from forecast cycle
12.8°N, 171.9°WHurricane75 mph (65 kt)
Advisory history and records

Advisory history

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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 issuanceRevision kindRecord
CPHC Advisory 2 · advisorySnapshot 6eb780c9 · Selected
CPHC Unnumbered state · advisorySnapshot c16d8efc
CPHC Advisory 1 · firstSnapshot 5be09be7
Monitoring geography
Area
None: no U.S. state or territory is under NHC’s coastal watches or warnings or inside the cone, Advisory 2
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 for Tropical Storm Pena, CPHC Advisory 2

The official forecast track, drawn by this site from CPHC’s Advisory 2 (). Not an official CPHC product. Data: NOAA/NHC. CPHC’s own.

Wind speed probabilities

Chance of sustained wind of at least 34, 50 and 64 knots, by place
Place34 kt50 kt64 kt
15n 170w15%4%1%
10n 165w12%3%—
15n 175w9%——
10n 170w8%——
10n 160w6%——
10n 175w3%——
15n 165w3%——
Johnston Isl3%——

NHC’s chance of sustained wind of at least each speed at each place it lists, through ; the places with the highest chance of 34 kt first. Issued . Data: NOAA/NHC. NHC’s table.

NHC’s coastal watches and warnings

NHC has no coastal watch or warning in effect for this storm.

In NHC’s words, Advisory 2, issued . The areas NHC names, in the United States and abroad; for a place outside the United States its national service is the warning authority. Data: NOAA/NHC. NHC’s advisory.

Intensity forecast

The official intensity forecast for Tropical Storm Pena, CPHC Advisory 2

The official intensity forecast, drawn by this site from CPHC’s Advisory 2 (). Not an official CPHC product. Data: NOAA/NHC. CPHC’s own.

Satellite

The storm’s page shows it on NASA GIBS (NOAA GOES, JMA Himawari)’s imagery, loaded by your browser. GOES-West at 14° 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 Tropical Storm Pena, CPHC Advisory 2

The models’ tracks, which are not a forecast, drawn by this site from CPHC’s Advisory 2 (). 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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Outside NWS coverageTropical Storm Pena
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