STORM MODEWeather tracking workspace

Tropical Storm Pena

Tropical Storm 46 mph (40 kt) · 1002 hPa · W at 12 mph (10 kt)

CPHC Advisory 1 ·

Historical advisory selected · current imagery and impacts are not attached

CPHC forecast for Tropical Storm Pena, Advisory 1; rendered by MaverickWX
Published advisory track · Advisory 1

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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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 Sterling, VA (IAD), 00Z. Its levels are in the table below.
Observed Sounding at Sterling, VA (IAD), for (6 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 (53)
Sterling, VA (IAD): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
1001 mb93 m16.013.7190° 5 kt
1000 mb98 m15.813.1190° 5 kt
979 mb278 m14.812.2—
965 mb401 m15.87.8—
941 mb610 m14.47.6185° 11 kt
925 mb759 m13.47.4195° 10 kt
908 mb914 m12.56.5200° 8 kt
886 mb1121 m11.25.2—
876 mb1219 m10.55.1300° 2 kt
850 mb1466 m8.64.7330° 10 kt
813 mb1829 m5.43.5315° 12 kt
783 mb2134 m2.72.4310° 12 kt
754 mb2438 m0.60.4290° 18 kt
726 mb2743 m-1.4-1.9285° 20 kt
716 mb2857 m-2.1-2.8—
703 mb3004 m1.6-12.4—
700 mb3038 m1.8-12.2250° 30 kt
686 mb3200 m0.8-14.2—
651 mb3617 m-2.5-16.5—
639 mb3765 m-2.9-18.9—
613 mb4094 m-2.9-26.9—
600 mb4267 m-4.2-23.9240° 37 kt
588 mb4421 m-5.3-21.3—
564 mb4746 m-7.5-26.5—
545 mb5011 m-9.7-26.7—
500 mb5670 m-13.7-43.7225° 61 kt
472 mb6096 m-17.1-42.8225° 67 kt
454 mb6401 m-19.8-42.2220° 71 kt
427 mb6846 m-23.5-51.5—
410 mb7142 m-26.1-51.1—
400 mb7320 m-27.1-49.1220° 76 kt
384 mb7620 m-29.3-52.5220° 74 kt
373 mb7820 m-30.7-55.7—
352 mb8230 m-34.0-47.1215° 80 kt
339 mb8492 m-36.3-42.3—
327 mb8741 m-38.3-48.3—
315 mb8998 m-39.9-54.9—
300 mb9330 m-41.9-58.9225° 84 kt
284 mb9699 m-44.0-60.4230° 89 kt
269 mb10063 m-45.1-64.1—
250 mb10550 m-47.7-66.7235° 79 kt
234 mb10973 m-49.7-69.1240° 81 kt
220 mb11384 m-51.3-71.3—
203 mb11904 m-52.1-73.1—
200 mb12000 m-52.7-73.7240° 71 kt
187 mb12433 m-53.5-76.5—
168 mb13106 m-57.0-79.2240° 73 kt
154 mb13665 m-59.1-81.1—
150 mb13830 m-58.7-81.7255° 64 kt
132 mb14628 m-61.3-83.3—
120 mb15240 m-63.8-84.8245° 62 kt
104 mb16090 m-65.3-85.3—
100 mb16330 m-63.5-85.5255° 43 kt

SPC observed soundings checked · Data: NOAA/SPC

Impacts

No supported U.S. monitoring area
Official forecast table

Forecast points

CPHC Advisory 1 · 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
11.2°N, 149.6°WTropical storm46 mph (40 kt)

+3 h from forecast cycle
11.3°N, 150.1°WTropical storm46 mph (40 kt)

+12 h from forecast cycle
11.5°N, 151.8°WTropical storm52 mph (45 kt)

+24 h from forecast cycle
11.4°N, 153.9°WTropical storm58 mph (50 kt)

+36 h from forecast cycle
11.3°N, 155.8°WTropical storm58 mph (50 kt)

+48 h from forecast cycle
11.3°N, 157.8°WTropical storm58 mph (50 kt)

+60 h from forecast cycle
11.2°N, 159.7°WTropical storm58 mph (50 kt)

+72 h from forecast cycle
11.0°N, 161.8°WTropical storm58 mph (50 kt)

+96 h from forecast cycle
11.3°N, 165.9°WTropical storm58 mph (50 kt)

+120 h from forecast cycle
11.9°N, 171.4°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.

Advisory history; retained records only
Official issuanceRevision kindRecord
CPHC Advisory 2 · advisorySnapshot 6eb780c9
CPHC Unnumbered state · advisorySnapshot c16d8efc
CPHC Advisory 1 · firstSnapshot 5be09be7 · Selected
Monitoring geography
Area
None: no U.S. state or territory is under NHC’s coastal watches or warnings or inside the cone, Advisory 1
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 1

The official forecast track, drawn by this site from CPHC’s Advisory 1 (). 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 Advisory 1

The official intensity forecast, drawn by this site from CPHC’s Advisory 1 (). 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 Advisory 1

The models’ tracks, which are not a forecast, drawn by this site from CPHC’s Advisory 1 (). 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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