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 Bismarck, ND (BIS), 12Z. Its levels are in the table below.
Observed Sounding at Bismarck, ND (BIS), for (8 h 58 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 (60)
Bismarck, ND (BIS): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
961 mb506 m-1.9-4.4calm
937 mb710 m8.4-1.6—
925 mb815 m7.6-4.4315° 15 kt
903 mb1013 m6.5-4.6315° 11 kt
885 mb1178 m6.0-6.0—
867 mb1347 m8.8-8.2—
851 mb1500 m7.5-7.6310° 27 kt
850 mb1510 m7.4-7.6310° 27 kt
826 mb1744 m5.9-5.8300° 29 kt
807 mb1935 m4.6-4.4—
791 mb2099 m5.4-13.9320° 31 kt
776 mb2255 m6.3-23.0310° 33 kt
766 mb2361 m6.8-29.2—
753 mb2500 m5.7-29.3310° 32 kt
742 mb2620 m4.8-28.4310° 30 kt
718 mb2886 m2.8-26.4305° 30 kt
700 mb3092 m1.2-24.8310° 33 kt
686 mb3254 m0.3-21.0320° 34 kt
676 mb3372 m-0.3-18.3—
665 mb3503 m-0.9-18.1300° 34 kt
648 mb3709 m-1.9-17.9—
635 mb3870 m-2.7-19.7—
609 mb4198 m-5.1-19.0305° 35 kt
594 mb4394 m-6.5-18.6305° 36 kt
575 mb4648 m-8.4-18.1310° 35 kt
551 mb4979 m-10.5-19.5—
539 mb5148 m-11.8-19.4310° 41 kt
522 mb5392 m-13.2-21.3310° 39 kt
501 mb5705 m-14.9-24.9—
500 mb5720 m-14.9-24.9305° 40 kt
490 mb5871 m-16.1-25.0300° 37 kt
458 mb6374 m-20.4-28.5315° 39 kt
437 mb6719 m-22.7-30.7—
423 mb6956 m-24.3-31.3—
407 mb7235 m-26.1-34.5315° 51 kt
400 mb7360 m-26.9-35.9315° 52 kt
380 mb7727 m-29.8-39.7310° 48 kt
364 mb8031 m-32.5-41.5—
354 mb8225 m-34.1-43.4315° 51 kt
341 mb8486 m-36.3-46.0315° 52 kt
329 mb8734 m-38.5-48.5—
310 mb9138 m-41.9-50.6325° 57 kt
300 mb9360 m-43.7-51.7320° 62 kt
288 mb9633 m-45.9-53.2320° 62 kt
268 mb10106 m-49.9-56.5325° 64 kt
250 mb10560 m-53.7-59.7325° 65 kt
233 mb11011 m-57.1-63.1—
222 mb11316 m-58.8-64.6325° 69 kt
203 mb11877 m-62.0-67.0325° 66 kt
200 mb11970 m-62.5-67.4325° 68 kt
190 mb12285 m-63.8-68.7320° 73 kt
174 mb12822 m-65.7-70.2325° 65 kt
163 mb13223 m-62.1-68.1305° 66 kt
153 mb13616 m-59.1-66.1—
150 mb13740 m-58.9-66.9305° 40 kt
136 mb14353 m-59.5-69.5290° 41 kt
126 mb14829 m-60.0-71.0295° 51 kt
113 mb15502 m-62.5-75.0315° 29 kt
101 mb16189 m-64.6-78.4295° 37 kt
100 mb16250 m-64.7-78.7300° 35 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

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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.

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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Outside NWS coverageTropical Storm Pena
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