STORM MODEWeather tracking workspace

Tropical Storm Pena

Tropical Storm 46 mph (40 kt) · 1002 hPa · W at 7 mph (6 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 San Diego, CA (NKX), 12Z. Its levels are in the table below.
Observed Sounding at San Diego, CA (NKX), 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 (56)
San Diego, CA (NKX): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
1000 mb137 m18.24.2040° 7 kt
977 mb340 m25.21.2—
955 mb537 m23.70.9070° 14 kt
925 mb814 m21.60.6075° 9 kt
907 mb982 m20.10.9075° 10 kt
871 mb1330 m17.01.6115° 11 kt
857 mb1468 m15.81.8—
850 mb1538 m15.41.4110° 12 kt
835 mb1689 m15.0-1.0—
808 mb1965 m13.3-5.6085° 1 kt
786 mb2197 m11.6-8.4—
772 mb2347 m10.4-8.6—
755 mb2532 m10.2-12.8—
735 mb2754 m8.6-15.2050° 15 kt
725 mb2867 m7.8-18.2—
711 mb3028 m9.8-39.2—
700 mb3157 m10.8-38.2065° 21 kt
682 mb3373 m10.4-32.6—
659 mb3655 m7.9-29.1055° 17 kt
631 mb4011 m4.8-24.6065° 16 kt
578 mb4713 m-1.1-32.1020° 16 kt
552 mb5081 m-4.2-36.9020° 17 kt
539 mb5268 m-5.7-24.7—
528 mb5429 m-7.3-24.3—
514 mb5638 m-9.3-27.3—
501 mb5835 m-11.1-27.1—
500 mb5850 m-11.3-25.3355° 19 kt
477 mb6211 m-12.5-36.6355° 16 kt
467 mb6374 m-12.6-43.8020° 14 kt
449 mb6673 m-14.2-43.7035° 15 kt
423 mb7122 m-17.9-43.7050° 12 kt
408 mb7392 m-20.4-44.3025° 17 kt
400 mb7540 m-21.7-44.7035° 16 kt
382 mb7877 m-24.8-45.1035° 16 kt
371 mb8089 m-25.9-48.9—
351 mb8485 m-29.1-50.4000° 15 kt
337 mb8776 m-31.5-51.5—
322 mb9096 m-33.4-53.9330° 13 kt
308 mb9407 m-35.3-56.3—
300 mb9590 m-36.9-57.9350° 19 kt
283 mb9987 m-40.2-56.4320° 10 kt
269 mb10332 m-43.1-55.1—
252 mb10767 m-46.5-61.5—
250 mb10820 m-46.9-58.9330° 20 kt
229 mb11395 m-52.1-59.1—
207 mb12042 m-56.6-64.9290° 23 kt
200 mb12260 m-57.3-69.3260° 24 kt
186 mb12718 m-59.3-71.3—
174 mb13134 m-60.7-74.7—
163 mb13538 m-62.4-78.1295° 23 kt
150 mb14050 m-63.9-79.9255° 26 kt
139 mb14514 m-65.8-82.2260° 37 kt
129 mb14967 m-66.3-84.8275° 34 kt
119 mb15454 m-68.7-85.7—
109 mb15979 m-69.3-87.3—
100 mb16490 m-72.5-87.5290° 45 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
11.5°N, 154.7°WTropical storm46 mph (40 kt)

+3 h from forecast cycle
11.5°N, 155.0°WTropical storm46 mph (40 kt)

+12 h from forecast cycle
11.5°N, 156.3°WTropical storm40 mph (35 kt)

+24 h from forecast cycle
11.5°N, 158.1°WTropical storm40 mph (35 kt)

+36 h from forecast cycle
11.4°N, 160.3°WTropical storm46 mph (40 kt)

+48 h from forecast cycle
11.3°N, 162.5°WTropical storm52 mph (45 kt)

+60 h from forecast cycle
11.1°N, 164.4°WTropical storm52 mph (45 kt)

+72 h from forecast cycle
10.9°N, 166.4°WTropical storm58 mph (50 kt)

+96 h from forecast cycle
11.0°N, 172.0°WTropical storm58 mph (50 kt)

+120 h from forecast cycle
12.5°N, 177.4°WTropical storm58 mph (50 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.

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.

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Outside NWS coverageTropical Storm Pena
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