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Tropical Storm Pena

Tropical Storm 46 mph (40 kt) · 1002 hPa · W at 8 mph (7 kt)

CPHC Advisory 18 ·

Latest advisory

CPHC forecast for Tropical Storm Pena, Advisory 18; rendered by MaverickWX
Published advisory track · Advisory 18

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.

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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 Reno, NV (REV), 00Z. Its levels are in the table below.
Observed Sounding at Reno, NV (REV), for (3 h 21 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 (61)
Reno, NV (REV): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
855 mb1516 m19.2-1.8130° 4 kt
850 mb1565 m17.6-3.4170° 4 kt
824 mb1829 m15.1-4.1175° 5 kt
795 mb2134 m12.3-4.8150° 5 kt
780 mb2289 m10.8-5.2—
768 mb2418 m9.8-8.2—
738 mb2743 m8.6-11.7200° 6 kt
719 mb2963 m7.2-8.8—
707 mb3101 m6.0-11.0—
700 mb3182 m5.4-10.6245° 10 kt
685 mb3353 m4.0-9.7250° 6 kt
675 mb3478 m3.0-9.0—
660 mb3658 m1.9-11.4280° 7 kt
636 mb3962 m0.2-15.5315° 7 kt
612 mb4267 m-1.6-19.5315° 7 kt
596 mb4476 m-3.3-19.3—
582 mb4664 m-4.9-21.9—
566 mb4877 m-6.8-20.8345° 11 kt
545 mb5182 m-8.8-21.7010° 3 kt
528 mb5422 m-10.1-22.1—
503 mb5791 m-12.8-26.5035° 13 kt
500 mb5840 m-13.1-27.1035° 12 kt
483 mb6096 m-15.2-30.3010° 9 kt
471 mb6291 m-16.7-32.7—
445 mb6706 m-20.4-35.5270° 5 kt
427 mb7010 m-23.1-37.4270° 6 kt
410 mb7315 m-25.6-40.3255° 8 kt
400 mb7490 m-27.1-42.1220° 6 kt
366 mb8122 m-32.1-47.1—
345 mb8534 m-35.6-48.9095° 9 kt
316 mb9144 m-40.6-52.8020° 7 kt
302 mb9449 m-42.6-54.6355° 9 kt
300 mb9490 m-42.9-54.9310° 14 kt
289 mb9741 m-45.3-57.3—
276 mb10058 m-47.0-58.4315° 13 kt
265 mb10317 m-48.3-59.3—
251 mb10668 m-49.6-59.7300° 29 kt
250 mb10700 m-49.7-59.7305° 27 kt
240 mb10966 m-51.3-61.3—
229 mb11278 m-52.8-62.8330° 40 kt
218 mb11587 m-52.1-62.1—
207 mb11920 m-53.9-62.9—
200 mb12140 m-54.9-64.9320° 67 kt
189 mb12497 m-57.0-66.6320° 67 kt
172 mb13106 m-60.2-69.2295° 55 kt
161 mb13505 m-58.7-68.7—
150 mb13950 m-59.1-69.1310° 70 kt
136 mb14557 m-63.3-72.3—
126 mb15024 m-65.5-73.5—
116 mb15545 m-66.2-74.7295° 65 kt
105 mb16154 m-67.5-75.5295° 58 kt
100 mb16420 m-68.9-76.9305° 23 kt
89 mb17141 m-71.1-79.1—
78 mb17902 m-69.4-79.7300° 34 kt
68 mb18724 m-67.9-81.5280° 37 kt
48 mb20830 m-65.4-84.3270° 14 kt
38 mb22262 m-63.9-86.8245° 5 kt
28 mb24134 m-62.4-86.4285° 24 kt
18 mb26881 m-59.3-83.7300° 31 kt
8 mb32045 m-50.2-76.5265° 68 kt
6 mb33828 m-47.1-65.1260° 85 kt

SPC observed soundings checked · Data: NOAA/SPC

Impacts

No supported U.S. monitoring area
Official forecast table

Forecast points

CPHC Advisory 18 · 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
10.5°N, 165.6°WTropical storm46 mph (40 kt)

+3 h from forecast cycle
10.5°N, 166.0°WTropical storm46 mph (40 kt)

+12 h from forecast cycle
10.4°N, 167.3°WTropical storm52 mph (45 kt)

+24 h from forecast cycle
10.4°N, 169.7°WTropical storm52 mph (45 kt)

+36 h from forecast cycle
10.8°N, 172.9°WTropical storm46 mph (40 kt)

+48 h from forecast cycle
11.2°N, 176.2°WTropical storm40 mph (35 kt)

+60 h from forecast cycle
11.6°N, 179.0°WTropical storm40 mph (35 kt)

+72 h from forecast cycle
12.0°N, 178.1°ETropical depression35 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 Advisory 18 · advisorySnapshot 73e56ebc · Selected
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, Advisory 18
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 Advisory 18

The official forecast track, drawn by this site from CPHC’s Advisory 18 (). 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 170w41%9%1%
10n 175w10%——

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, Advisory 18, 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 Advisory 18

The official intensity forecast, drawn by this site from CPHC’s Advisory 18 (). 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 29° 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 Advisory 18

The models’ tracks, which are not a forecast, drawn by this site from CPHC’s Advisory 18 (). 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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