STORM MODEWeather tracking workspace

Tropical Storm Pena

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

CPHC Best track ·

Latest best track

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.

Open the complete replay reader (works without scripting or WebGL)

Choose Forecast for a pinned issuance and valid time.

Analysis

Choose product

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 Charleston, SC (CHS), 12Z. Its levels are in the table below.
Observed Sounding at Charleston, SC (CHS), for (8 h 23 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 (54)
Charleston, SC (CHS): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
1017 mb15 m11.68.8050° 3 kt
1000 mb154 m11.85.8045° 21 kt
985 mb281 m15.26.2—
947 mb610 m13.42.6055° 12 kt
925 mb810 m12.02.0040° 10 kt
914 mb914 m11.41.1035° 9 kt
885 mb1179 m10.0-2.0—
854 mb1477 m11.6-11.4—
850 mb1516 m11.4-11.6235° 7 kt
839 mb1625 m11.6-14.4—
819 mb1829 m10.5-11.8265° 11 kt
802 mb2000 m9.8-14.2—
789 mb2134 m8.8-14.4260° 17 kt
779 mb2240 m9.0-18.0—
761 mb2438 m8.2-21.1285° 15 kt
735 mb2720 m7.4-20.6—
722 mb2866 m6.8-24.2—
706 mb3048 m5.4-23.5295° 20 kt
700 mb3119 m4.8-23.2295° 20 kt
680 mb3353 m3.1-26.9295° 21 kt
655 mb3658 m0.6-26.1280° 19 kt
607 mb4261 m-2.7-33.7—
584 mb4572 m-3.9-35.9275° 27 kt
561 mb4877 m-6.0-32.6285° 29 kt
519 mb5486 m-10.4-25.8275° 38 kt
500 mb5770 m-12.5-26.5275° 37 kt
479 mb6096 m-15.3-26.8270° 38 kt
459 mb6420 m-17.5-26.5—
442 mb6706 m-19.6-29.8265° 48 kt
424 mb7010 m-21.9-33.3270° 43 kt
407 mb7315 m-23.5-36.2275° 44 kt
400 mb7440 m-24.1-37.1260° 51 kt
360 mb8199 m-30.5-32.4—
346 mb8479 m-32.9-36.1—
331 mb8789 m-35.7-37.6—
317 mb9089 m-36.1-49.1—
301 mb9449 m-38.2-53.0260° 73 kt
300 mb9470 m-38.3-53.3265° 77 kt
288 mb9754 m-40.4-54.7265° 84 kt
275 mb10058 m-42.1-55.3265° 90 kt
261 mb10413 m-43.9-55.9—
250 mb10700 m-45.9-56.9270° 102 kt
235 mb11109 m-49.3-59.3—
222 mb11480 m-52.1-62.1—
211 mb11807 m-54.1-63.1—
200 mb12150 m-55.3-65.3265° 106 kt
189 mb12497 m-57.7-67.0265° 105 kt
175 mb12988 m-61.3-69.3—
163 mb13411 m-64.3-71.4260° 108 kt
150 mb13930 m-64.7-73.7260° 106 kt
137 mb14484 m-65.5-75.5—
124 mb15090 m-65.5-77.5—
109 mb15850 m-67.8-81.8270° 60 kt
100 mb16390 m-67.7-82.7255° 43 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
11.6°N, 155.6°WTropical storm46 mph (40 kt)

+3 h from forecast cycle
11.6°N, 156.1°WTropical storm46 mph (40 kt)

+12 h from forecast cycle
11.6°N, 157.4°WTropical storm46 mph (40 kt)

+24 h from forecast cycle
11.6°N, 159.4°WTropical storm46 mph (40 kt)

+36 h from forecast cycle
11.5°N, 161.5°WTropical storm46 mph (40 kt)

+48 h from forecast cycle
11.4°N, 163.4°WTropical storm52 mph (45 kt)

+60 h from forecast cycle
11.3°N, 165.4°WTropical storm52 mph (45 kt)

+72 h from forecast cycle
11.2°N, 167.7°WTropical storm58 mph (50 kt)

+96 h from forecast cycle
11.6°N, 174.0°WTropical storm52 mph (45 kt)

+120 h from forecast cycle
13.6°N, 179.7°ETropical storm52 mph (45 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

Chance of sustained wind of at least 34, 50 and 64 knots, by place
Place34 kt50 kt64 kt
10n 170w9%——
10n 165w5%——
10n 175w5%——

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 20° from the storm's meridian.

Open the storm’s page

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.

Open the radar

Drawn live: if the radar fails, nothing older is shown in its place.

My places

Add a place

Saved places are read from this device after scripting starts.

Search for a place

Search stays in this browser. A town point is not an address; no address-level surge is calculated.

Outside NWS coverageTropical Storm Pena
Check local warning authorities.