STORM MODEWeather tracking workspace

Tropical Storm Pena

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

CPHC Best track ·

Historical advisory selected · current imagery and impacts are not attached

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 Boise, ID (BOI), 12Z. Its levels are in the table below.
Observed Sounding at Boise, ID (BOI), for (3 h 13 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 (51)
Boise, ID (BOI): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
922 mb874 m8.21.2140° 5 kt
900 mb1077 m13.42.4—
870 mb1361 m11.02.4315° 10 kt
850 mb1556 m9.42.4300° 16 kt
838 mb1674 m8.42.4—
822 mb1833 m8.02.0280° 23 kt
799 mb2066 m6.11.1285° 25 kt
786 mb2201 m5.00.5—
760 mb2474 m3.2-1.8—
707 mb3055 m-2.1-3.1—
700 mb3134 m-2.5-4.0285° 19 kt
688 mb3271 m-3.2-5.5285° 18 kt
674 mb3434 m-4.1-7.2—
662 mb3576 m-4.7-7.6—
647 mb3757 m-5.9-9.4—
633 mb3928 m-6.1-13.1—
614 mb4166 m-8.1-13.1—
602 mb4320 m-8.9-19.9—
579 mb4621 m-11.3-21.3—
565 mb4809 m-10.9-29.9—
551 mb5002 m-11.9-26.9—
533 mb5256 m-13.1-29.1—
523 mb5400 m-14.1-36.1—
511 mb5576 m-15.5-35.5—
500 mb5740 m-16.7-37.7280° 38 kt
487 mb5937 m-18.2-41.0280° 36 kt
457 mb6410 m-20.3-37.3—
430 mb6857 m-24.3-37.3—
401 mb7362 m-28.5-41.5—
400 mb7380 m-28.7-42.7305° 59 kt
381 mb7725 m-31.7-42.0300° 61 kt
364 mb8045 m-34.3-47.3—
330 mb8720 m-40.7-51.7—
318 mb8971 m-42.7-53.7—
303 mb9294 m-45.3-56.3—
300 mb9360 m-45.5-59.5295° 55 kt
278 mb9861 m-49.5-59.6290° 43 kt
267 mb10127 m-51.7-59.7—
250 mb10550 m-55.5-63.5275° 48 kt
234 mb10971 m-56.3-70.3—
223 mb11276 m-58.5-70.5270° 59 kt
210 mb11654 m-59.2-70.6285° 71 kt
200 mb11960 m-58.5-73.5290° 55 kt
190 mb12280 m-60.1-75.1—
180 mb12618 m-59.2-77.4275° 46 kt
169 mb13011 m-58.1-80.1—
150 mb13770 m-56.3-82.3270° 32 kt
133 mb14526 m-60.1-83.5280° 49 kt
119 mb15223 m-58.3-84.3—
108 mb15823 m-62.6-85.3285° 33 kt
100 mb16300 m-66.1-86.1285° 41 kt

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
11.4°N, 153.5°WTropical storm52 mph (45 kt)

+3 h from forecast cycle
11.5°N, 153.9°WTropical storm52 mph (45 kt)

+12 h from forecast cycle
11.6°N, 155.1°WTropical storm63 mph (55 kt)

+24 h from forecast cycle
11.6°N, 156.8°WTropical storm63 mph (55 kt)

+36 h from forecast cycle
11.5°N, 158.7°WTropical storm69 mph (60 kt)

+48 h from forecast cycle
11.5°N, 160.8°WTropical storm69 mph (60 kt)

+60 h from forecast cycle
11.5°N, 162.9°WTropical storm69 mph (60 kt)

+72 h from forecast cycle
11.8°N, 165.0°WTropical storm69 mph (60 kt)

+96 h from forecast cycle
12.7°N, 170.5°WHurricane75 mph (65 kt)

+120 h from forecast cycle
14.5°N, 177.7°WHurricane75 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 issuanceRevision kindRecord
CPHC Advisory 16 · advisorySnapshot 75219303
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 · Selected
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

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 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 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 (). 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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