STORM MODEWeather tracking workspace

Tropical Storm Pena

Tropical Storm 40 mph (35 kt) · 1006 hPa

CPHC Best track ·

Latest best track

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.

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Choose Forecast for a pinned issuance and valid time.

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 Riverton, WY (RIW), 00Z. Its levels are in the table below.
Observed Sounding at Riverton, WY (RIW), for (10 h 28 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 (58)
Riverton, WY (RIW): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
835 mb1703 m15.2-0.8155° 4 kt
823 mb1825 m13.4-0.6—
810 mb1958 m12.2-0.8—
797 mb2093 m12.0-2.0—
764 mb2438 m9.6-3.3315° 6 kt
737 mb2743 m7.4-4.4310° 15 kt
716 mb2976 m5.8-5.2—
700 mb3160 m4.8-6.2290° 17 kt
684 mb3353 m3.5-8.0315° 10 kt
660 mb3638 m2.0-11.0—
641 mb3873 m0.2-11.8—
610 mb4267 m-2.7-16.4320° 22 kt
592 mb4505 m-4.5-17.5—
565 mb4877 m-7.6-21.4335° 26 kt
543 mb5182 m-9.9-21.6345° 25 kt
522 mb5486 m-12.2-20.7330° 27 kt
501 mb5791 m-14.2-21.2340° 35 kt
500 mb5810 m-14.3-21.3340° 35 kt
481 mb6096 m-16.2-24.3335° 32 kt
462 mb6401 m-18.3-27.6325° 28 kt
443 mb6706 m-20.3-30.8320° 29 kt
426 mb7010 m-22.7-33.4325° 26 kt
408 mb7315 m-25.3-35.5325° 25 kt
400 mb7460 m-26.5-36.5325° 29 kt
375 mb7925 m-30.6-41.5325° 29 kt
364 mb8135 m-32.3-44.3—
344 mb8534 m-35.5-47.5330° 30 kt
329 mb8839 m-38.1-50.1335° 28 kt
315 mb9144 m-40.7-52.7345° 29 kt
301 mb9449 m-43.3-54.4355° 28 kt
300 mb9470 m-43.5-54.5355° 29 kt
287 mb9754 m-45.6-55.2350° 33 kt
274 mb10058 m-47.9-56.0350° 41 kt
262 mb10363 m-50.2-56.7350° 46 kt
250 mb10668 m-52.5-57.5340° 47 kt
250 mb10670 m-52.5-57.5335° 51 kt
238 mb10973 m-52.9-57.8330° 53 kt
227 mb11278 m-54.5-59.2340° 70 kt
217 mb11575 m-56.1-61.1—
207 mb11873 m-56.3-61.3—
200 mb12090 m-57.7-62.7335° 68 kt
186 mb12546 m-59.7-65.7320° 65 kt
173 mb13002 m-57.7-65.5320° 88 kt
154 mb13716 m-58.7-68.2320° 66 kt
150 mb13900 m-59.3-69.3315° 56 kt
138 mb14419 m-60.9-72.9—
127 mb14935 m-64.3-77.4310° 52 kt
112 mb15690 m-66.9-82.9—
100 mb16370 m-68.7-85.7305° 51 kt
87 mb17204 m-67.5-87.3325° 34 kt
77 mb17976 m-69.1-90.1—
65 mb19008 m-66.5-90.5—
54 mb20079 m-65.9-91.9—
44 mb21338 m-63.7-90.7325° 20 kt
34 mb22911 m-63.1-91.1345° 11 kt
24 mb25051 m-63.4-90.4325° 13 kt
14 mb28398 m-60.9-89.0320° 24 kt
6 mb33536 m-46.5-69.5—

SPC observed soundings checked · Data: NOAA/SPC

Impacts

No supported U.S. monitoring area
Official forecast table

Forecast points

CPHC Best track · 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
9.8°N, 171.3°WTropical storm40 mph (35 kt)

+3 h from forecast cycle
9.8°N, 172.0°WTropical depression35 mph (30 kt)

+12 h from forecast cycle
9.9°N, 174.3°WTropical depression35 mph (30 kt)

+24 h from forecast cycle
10.0°N, 177.4°WPost tropical cyclone35 mph (30 kt)

+36 h from forecast cycle
10.2°N, 180.0°WPost tropical cyclone35 mph (30 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 issuanceRevision kindRecord
CPHC Unnumbered state · advisorySnapshot d9a5c932 · Selected
CPHC Unnumbered state · advisorySnapshot ebb84fec
CPHC Unnumbered state · advisorySnapshot 1e8dd0ec
CPHC Unnumbered state · advisorySnapshot 4ce1bc5a
CPHC Advisory 19 · advisorySnapshot df019665
CPHC Unnumbered state · advisorySnapshot 328312e5
CPHC Advisory 18 · advisorySnapshot 73e56ebc
CPHC Unnumbered state · advisorySnapshot 0349dae4
CPHC Advisory 17 · advisorySnapshot 323daddf
CPHC Unnumbered state · advisorySnapshot ccf21749
CPHC Advisory 16 · advisorySnapshot d4220ca3
CPHC Unnumbered state · advisorySnapshot 1b3d972c
CPHC Advisory 15 · advisorySnapshot d09d1ec3
CPHC Unnumbered state · advisorySnapshot 0abb013b
CPHC Advisory 14 · advisorySnapshot 6ab29e69
CPHC Unnumbered state · advisorySnapshot 0bcec4c9
CPHC Advisory 13 · advisorySnapshot f9ae50f7
CPHC Unnumbered state · advisorySnapshot 7c8b78ee
CPHC Advisory 12 · advisorySnapshot 0a3a81cd
CPHC Unnumbered state · advisorySnapshot 20477de4
CPHC Advisory 11 · advisorySnapshot 1dbe26fd
CPHC Unnumbered state · advisorySnapshot 5f4e816f
CPHC Advisory 10 · advisorySnapshot 0bcae4ab
CPHC Unnumbered state · advisorySnapshot d9b6706d
CPHC Advisory 9 · advisorySnapshot 23b015f2
CPHC Unnumbered state · advisorySnapshot 7081a2c1
CPHC Advisory 8 · advisorySnapshot 9cccd530
CPHC Unnumbered state · advisorySnapshot 72fa3e5c
CPHC Advisory 7 · advisorySnapshot 9d4bd068
CPHC Unnumbered state · advisorySnapshot 34f11ed6
CPHC Advisory 6 · advisorySnapshot 7b6af387
CPHC Unnumbered state · advisorySnapshot feb3dd6a
CPHC Advisory 5 · advisorySnapshot 056a0eb5
CPHC Unnumbered state · advisorySnapshot e296178e
CPHC Advisory 4 · advisorySnapshot 8e23913e
CPHC Unnumbered state · advisorySnapshot 9ce314ee
CPHC Advisory 3 · advisorySnapshot f167fe92
CPHC Unnumbered state · advisorySnapshot b161830f
CPHC Advisory 2 · advisorySnapshot 6eb780c9
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, 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 for Tropical Storm Pena, CPHC Best track

The official forecast track, drawn by this site from CPHC’s Best track (). 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
10n 175w18%——

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, Best track, 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 Best track

The official intensity forecast, drawn by this site from CPHC’s Best track (). 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 34° from the storm's meridian.

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 (). 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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Drawn live: if the radar fails, nothing older is shown in its place.

My places

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Outside NWS coverageTropical Storm Pena
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