STORM MODEWeather tracking workspace

Tropical Storm Pena

Tropical Storm 40 mph (35 kt) · 1004 hPa · W at 9 mph (8 kt)

CPHC Best track ·

Source down · last complete advisory retained

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 International Falls, MN (INL), 12Z. Its levels are in the table below.
Observed Sounding at International Falls, MN (INL), for (8 h 37 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)
International Falls, MN (INL): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
968 mb357 m4.02.7190° 4 kt
958 mb442 m5.12.5170° 19 kt
940 mb598 m7.12.1190° 28 kt
925 mb730 m8.81.8195° 36 kt
911 mb856 m10.4-3.6—
896 mb995 m10.4-0.6—
874 mb1201 m9.4-1.9235° 39 kt
851 mb1421 m7.7-2.4240° 38 kt
850 mb1431 m7.6-2.4240° 38 kt
805 mb1878 m5.6-1.7240° 27 kt
792 mb2011 m5.8-0.2—
767 mb2273 m4.4-2.6—
757 mb2380 m3.5-3.5265° 34 kt
745 mb2509 m3.4-4.6—
731 mb2663 m2.6-5.4—
715 mb2841 m1.2-6.8275° 32 kt
700 mb3012 m-0.1-8.1275° 32 kt
682 mb3216 m-1.7-8.8275° 33 kt
661 mb3462 m-3.6-9.8275° 33 kt
640 mb3715 m-5.6-10.7275° 38 kt
602 mb4196 m-9.3-12.5275° 39 kt
585 mb4421 m-11.1-13.3—
572 mb4593 m-12.2-14.4270° 41 kt
561 mb4741 m-13.1-15.4—
532 mb5144 m-16.1-17.8—
520 mb5316 m-16.5-18.4275° 56 kt
500 mb5610 m-17.9-19.4270° 61 kt
487 mb5805 m-19.2-20.4270° 63 kt
472 mb6037 m-20.5-22.0270° 62 kt
458 mb6258 m-21.7-23.0—
438 mb6582 m-23.6-25.2270° 55 kt
413 mb7008 m-26.0-28.1275° 58 kt
400 mb7240 m-27.3-29.7275° 52 kt
383 mb7546 m-29.7-32.7275° 53 kt
369 mb7809 m-31.8-35.2275° 54 kt
351 mb8162 m-34.6-38.6275° 59 kt
325 mb8704 m-38.9-43.9280° 62 kt
312 mb8984 m-41.5-46.5280° 61 kt
300 mb9250 m-43.9-48.9280° 63 kt
285 mb9591 m-46.9-51.5—
275 mb9825 m-49.1-53.3—
262 mb10139 m-52.1-56.0280° 68 kt
251 mb10414 m-54.5-58.0280° 69 kt
250 mb10440 m-54.7-58.2280° 69 kt
238 mb10752 m-57.3-60.6280° 72 kt
223 mb11162 m-59.7-63.1—
210 mb11537 m-60.9-63.9—
200 mb11840 m-61.9-65.3280° 79 kt
190 mb12157 m-62.1-66.8285° 73 kt
179 mb12527 m-60.8-67.3285° 72 kt
169 mb12884 m-59.3-67.3275° 75 kt
155 mb13425 m-58.7-67.7285° 60 kt
150 mb13630 m-59.7-69.7280° 47 kt
138 mb14149 m-59.9-71.9—
124 mb14816 m-59.1-73.1—
114 mb15339 m-61.7-76.6270° 29 kt
104 mb15907 m-61.3-78.2250° 46 kt
100 mb16150 m-60.7-78.7250° 44 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, 159.1°WTropical storm40 mph (35 kt)

+3 h from forecast cycle
11.4°N, 159.5°WTropical storm40 mph (35 kt)

+12 h from forecast cycle
11.4°N, 161.6°WTropical storm40 mph (35 kt)

+24 h from forecast cycle
11.3°N, 163.6°WTropical storm40 mph (35 kt)

+36 h from forecast cycle
11.1°N, 165.6°WTropical storm46 mph (40 kt)

+48 h from forecast cycle
11.1°N, 168.0°WTropical storm46 mph (40 kt)

+60 h from forecast cycle
11.4°N, 170.7°WTropical storm46 mph (40 kt)

+72 h from forecast cycle
12.0°N, 173.8°WTropical storm46 mph (40 kt)

+96 h from forecast cycle
13.4°N, 180.0°WTropical storm40 mph (35 kt)

+120 h from forecast cycle
14.7°N, 175.3°ETropical storm40 mph (35 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

Chance of sustained wind of at least 34, 50 and 64 knots, by place
Place34 kt50 kt64 kt
10n 170w6%——
10n 165w4%——

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 24° 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 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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