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 Pittsburgh, PA (PIT), 12Z. Its levels are in the table below.
Observed Sounding at Pittsburgh, PA (PIT), for (7 h 27 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)
Pittsburgh, PA (PIT): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
976 mb360 m4.43.5235° 4 kt
946 mb610 m3.01.7240° 21 kt
936 mb699 m3.41.1—
925 mb794 m2.60.8250° 24 kt
911 mb914 m1.70.5250° 22 kt
879 mb1205 m0.0-2.4—
869 mb1296 m0.4-5.6—
859 mb1389 m0.8-6.2—
850 mb1474 m2.8-33.2285° 24 kt
838 mb1589 m4.4-44.6—
827 mb1697 m4.4-29.6—
814 mb1829 m4.0-13.5295° 27 kt
800 mb1966 m4.0-40.0—
788 mb2089 m3.4-19.6—
774 mb2234 m3.0-17.0—
757 mb2414 m2.2-12.8—
744 mb2553 m1.8-18.2—
727 mb2739 m1.0-19.0—
713 mb2895 m-0.3-14.3—
700 mb3042 m-1.5-18.5305° 41 kt
687 mb3191 m-2.3-20.3—
660 mb3509 m-3.7-26.7—
648 mb3658 m-4.8-27.9305° 36 kt
637 mb3788 m-5.9-19.9—
617 mb4037 m-8.3-20.3—
599 mb4267 m-9.1-29.7315° 37 kt
586 mb4437 m-9.9-32.9—
573 mb4610 m-11.3-32.3—
557 mb4827 m-13.1-27.1—
531 mb5189 m-16.1-25.1—
517 mb5390 m-17.5-28.5—
501 mb5625 m-19.5-29.5—
500 mb5640 m-19.5-29.5300° 36 kt
490 mb5791 m-20.4-33.5305° 33 kt
476 mb6002 m-22.1-34.1—
458 mb6284 m-24.3-38.3—
443 mb6524 m-26.5-39.5—
417 mb6956 m-30.1-49.1—
401 mb7232 m-32.3-50.3—
400 mb7250 m-32.5-51.5325° 47 kt
390 mb7428 m-33.9-53.9—
379 mb7620 m-35.1-55.1325° 47 kt
348 mb8218 m-39.7-57.7—
332 mb8539 m-41.5-56.5—
306 mb9088 m-45.1-64.1—
300 mb9220 m-45.9-63.9330° 53 kt
277 mb9754 m-49.7-63.4335° 57 kt
265 mb10034 m-51.7-66.7—
252 mb10363 m-52.8-68.6335° 39 kt
250 mb10410 m-52.9-68.9310° 35 kt
238 mb10726 m-53.7-67.7—
227 mb11030 m-53.7-71.7—
208 mb11582 m-54.5-73.7290° 34 kt
200 mb11840 m-54.9-74.9285° 44 kt
189 mb12192 m-53.7-78.1290° 47 kt
167 mb13000 m-54.3-82.3—
150 mb13690 m-54.7-82.7275° 40 kt
117 mb15240 m-58.8-85.9275° 38 kt
106 mb15850 m-60.5-85.3255° 31 kt
100 mb16240 m-62.5-85.5270° 36 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.