Forecast track

The official forecast track, drawn by this site from NHC’s Best track (). Not an official NHC product. Data: NOAA/NHC. NHC’s own.
Current advisory context · 55 kt · 63 mph · 988 hPa · N at 5 kt
Storm Mode · NHC Best track ·
Latest published best-track state

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The cone describes center uncertainty; impacts can extend outside it.
Recorded weather · gaps are marked. Coverage begins with recording activation.
Live sources keep independent clocks.
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.
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Open the complete replay reader (works without scripting or WebGL)Choose Forecast for a pinned issuance and valid time.
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.

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.
| Pressure | Height | Temperature | Dew point | Wind |
|---|---|---|---|---|
| 1001 mb | 173 m | 20.4 | 7.4 | calm |
| 1000 mb | 189 m | 23.0 | 9.0 | 090° 8 kt |
| 989 mb | 285 m | 22.6 | 6.6 | — |
| 952 mb | 610 m | 19.6 | 5.3 | 080° 9 kt |
| 925 mb | 858 m | 17.4 | 4.4 | 040° 6 kt |
| 909 mb | 1006 m | 16.2 | 4.2 | — |
| 886 mb | 1219 m | 14.8 | -0.2 | 045° 6 kt |
| 864 mb | 1435 m | 13.4 | -4.6 | — |
| 850 mb | 1572 m | 13.2 | -6.8 | 065° 4 kt |
| 828 mb | 1792 m | 12.4 | -7.6 | — |
| 795 mb | 2134 m | 11.1 | -11.8 | 265° 3 kt |
| 783 mb | 2258 m | 10.6 | -13.4 | — |
| 766 mb | 2438 m | 9.5 | -13.6 | 275° 3 kt |
| 738 mb | 2743 m | 7.9 | -17.1 | 285° 12 kt |
| 713 mb | 3032 m | 6.4 | -20.6 | — |
| 700 mb | 3182 m | 5.4 | -20.6 | 350° 5 kt |
| 685 mb | 3353 m | 4.3 | -20.9 | 335° 3 kt |
| 667 mb | 3574 m | 2.8 | -21.2 | — |
| 635 mb | 3962 m | -0.0 | -24.8 | 005° 6 kt |
| 612 mb | 4267 m | -2.7 | -17.6 | 355° 7 kt |
| 590 mb | 4550 m | -5.3 | -6.8 | — |
| 575 mb | 4751 m | -6.7 | -9.8 | — |
| 557 mb | 4999 m | -7.7 | -13.7 | — |
| 544 mb | 5182 m | -9.0 | -13.6 | 320° 8 kt |
| 528 mb | 5412 m | -10.7 | -13.4 | — |
| 515 mb | 5603 m | -11.3 | -15.5 | — |
| 503 mb | 5784 m | -10.9 | -25.9 | — |
| 500 mb | 5830 m | -11.1 | -26.1 | 355° 13 kt |
| 483 mb | 6096 m | -13.3 | -25.4 | 025° 10 kt |
| 464 mb | 6401 m | -15.9 | -24.7 | 035° 9 kt |
| 445 mb | 6706 m | -18.5 | -23.9 | 000° 6 kt |
| 432 mb | 6936 m | -19.5 | -27.5 | — |
| 421 mb | 7129 m | -19.3 | -36.3 | — |
| 411 mb | 7308 m | -19.3 | -39.3 | — |
| 400 mb | 7510 m | -20.3 | -42.3 | 340° 24 kt |
| 378 mb | 7925 m | -22.8 | -44.8 | 340° 26 kt |
| 363 mb | 8230 m | -24.2 | -46.2 | 345° 34 kt |
| 348 mb | 8534 m | -26.3 | -47.8 | 350° 36 kt |
| 333 mb | 8839 m | -28.2 | -49.2 | 335° 35 kt |
| 319 mb | 9144 m | -29.1 | -50.1 | 335° 44 kt |
| 306 mb | 9449 m | -30.4 | -50.8 | 340° 38 kt |
| 300 mb | 9590 m | -31.1 | -51.1 | 340° 39 kt |
| 281 mb | 10058 m | -34.4 | -53.4 | 340° 40 kt |
| 269 mb | 10363 m | -36.5 | -54.8 | 340° 31 kt |
| 257 mb | 10668 m | -38.7 | -56.2 | 335° 32 kt |
| 250 mb | 10860 m | -40.1 | -57.1 | 330° 34 kt |
| 235 mb | 11278 m | -42.9 | -59.3 | 335° 31 kt |
| 224 mb | 11582 m | -45.0 | -61.0 | 335° 32 kt |
| 214 mb | 11887 m | -47.0 | -62.6 | 330° 32 kt |
| 201 mb | 12317 m | -49.9 | -64.9 | — |
| 200 mb | 12350 m | -50.3 | -65.3 | 335° 30 kt |
| 178 mb | 13106 m | -54.5 | -67.9 | 335° 22 kt |
| 162 mb | 13716 m | -57.9 | -71.1 | 320° 28 kt |
| 150 mb | 14180 m | -60.5 | -72.5 | 325° 25 kt |
| 140 mb | 14630 m | -61.7 | -73.7 | 305° 25 kt |
| 126 mb | 15240 m | -64.8 | -76.0 | 335° 22 kt |
| 115 mb | 15809 m | -68.5 | -78.5 | — |
| 104 mb | 16408 m | -70.7 | -79.7 | — |
| 100 mb | 16640 m | -70.9 | -80.9 | 320° 23 kt |
SPC observed soundings checked · Data: NOAA/SPC
Forecast cycle . Center position belongs to the official state’s time, not imagery time.
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Solid: Best track ·
Dashed: Advisory 1 ·
Solid: NHC Best track ·
Dashed: NHC Advisory 1 · . Comparison uses each record’s own geometry. A revision is not a landfall or impact prediction.
| Field | Selected issuance | Comparison issuance | Change |
|---|---|---|---|
| Maximum sustained wind | 55 kt · 63 mph | 55 kt · 63 mph | 0 kt |
| Minimum pressure | 988 hPa | 990 hPa | -2 hPa |
| Center position | 37.5°N, 69.5°W | 37.4°N, 69.5°W | Different observation times; not a forecast shift |
| Valid time | Selected position / wind | Previous position / wind | Wind revision |
|---|---|---|---|
| 37.1°N, 69.6°W 55 kt · 63 mph | 37.1°N, 69.6°W 55 kt · 63 mph | 0 kt | |
| 37.4°N, 69.5°W 55 kt · 63 mph | 37.4°N, 69.5°W 55 kt · 63 mph | 0 kt | |
| 38.1°N, 69.0°W 60 kt · 69 mph | 38.1°N, 69.0°W 60 kt · 69 mph | 0 kt | |
| 39.6°N, 66.2°W 65 kt · 75 mph | 39.6°N, 66.2°W 65 kt · 75 mph | 0 kt | |
| 41.4°N, 61.6°W 70 kt · 81 mph | 41.4°N, 61.6°W 70 kt · 81 mph | 0 kt | |
| 43.3°N, 56.9°W 60 kt · 69 mph | 43.3°N, 56.9°W 60 kt · 69 mph | 0 kt | |
| 44.1°N, 53.5°W 50 kt · 58 mph | 44.1°N, 53.5°W 50 kt · 58 mph | 0 kt | |
| 44.4°N, 50.4°W 45 kt · 52 mph | 44.4°N, 50.4°W 45 kt · 52 mph | 0 kt | |
| 43.5°N, 37.5°W 40 kt · 46 mph | 43.5°N, 37.5°W 40 kt · 46 mph | 0 kt |
NHC/CPHC track, coastal alerts, probabilities and wind timing retain separate coverage and issuance.
Geographic context: Natural Earth boundaries and representative place labels. Radar coverage is limited offshore. Satellite pixels keep their source palette and actual observation time. Missing imagery is not clear weather.
No supported U.S. NWS monitoring area for this advisory. This does not mean no warnings worldwide.
Total lightning, including in-cloud activity. Not ground-strike locations or a safe-to-go-outside signal.
Cached lightning observations have not loaded. An empty map is not zero lightning.
Interactive layer controls load on this device. Published products remain available below.
None: no U.S. state or territory is under NHC’s coastal watches or warnings or inside the cone, Best track. Current geographical context; these alerts are not attributed to the cyclone.
No U.S. state or territory is under NHC’s coastal watches or warnings or inside the cone. The storm’s own panels are shown, and no NWS alert is listed.
NHC Best track · advisory · forecast cycle . Forecast positions are future estimates, not observed imagery. Classification is shown only where published.
| Valid time / lead | Position | Classification | Sustained wind |
|---|---|---|---|
+0 h from forecast cycle | 37.1°N, 69.6°W | subtropical storm | 55 kt · 63 mph |
+3 h from forecast cycle | 37.4°N, 69.5°W | subtropical storm | 55 kt · 63 mph |
+12 h from forecast cycle | 38.1°N, 69.0°W | subtropical storm | 60 kt · 69 mph |
+24 h from forecast cycle | 39.6°N, 66.2°W | extratropical | 65 kt · 75 mph |
+36 h from forecast cycle | 41.4°N, 61.6°W | extratropical | 70 kt · 81 mph |
+48 h from forecast cycle | 43.3°N, 56.9°W | extratropical | 60 kt · 69 mph |
+60 h from forecast cycle | 44.1°N, 53.5°W | extratropical | 50 kt · 58 mph |
+72 h from forecast cycle | 44.4°N, 50.4°W | post tropical cyclone | 45 kt · 52 mph |
+96 h from forecast cycle | 43.5°N, 37.5°W | post tropical cyclone | 40 kt · 46 mph |
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.
| Official issuance | Revision kind | Record |
|---|---|---|
| NHC Unnumbered state · | advisory | Snapshot 77cf7e1f · Selected |
| NHC Advisory 1 · | first | Snapshot a2f96dd0 |
The storm’s area, by its warning centre’s products: everything listed is in force in this area, never “from this storm”.

The official forecast track, drawn by this site from NHC’s Best track (). Not an official NHC product. Data: NOAA/NHC. NHC’s own.
| Place | 34 kt | 50 kt | 64 kt |
|---|---|---|---|
| Nantucket MA | 99% | — | — |
| Sable Island | 92% | 36% | 6% |
| Hyannis MA | 66% | — | — |
| Montauk Point | 63% | — | — |
| Eddy Point NS | 59% | — | — |
| Cape Race Nfld | 57% | 7% | 2% |
| Ile St Pierre | 56% | 3% | — |
| Yarmouth NS | 54% | — | — |
| Providence RI | 50% | — | — |
| Sydney NS | 48% | — | — |
| Halifax NS | 45% | — | — |
| Burgeo Nfld | 32% | — | — |
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 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.

The official intensity forecast, drawn by this site from NHC’s Best track (). Not an official NHC product. Data: NOAA/NHC. NHC’s own.
The storm’s page shows it on NASA GIBS (NOAA GOES, JMA Himawari)’s imagery, loaded by your browser. GOES-East at 6° from the storm's meridian.
Imagery from NASA GIBS: NOAA GOES and JMA Himawari.

The models’ tracks, which are not a forecast, drawn by this site from NHC’s Best track (). Not an official NHC product. Data: NOAA/NHC. NHC’s own.
NOAA’s radar for the area, loaded by your browser as on the Radar page.
Live tiles; the radar keeps no last-good copy.
NHC best track, as published checked
Radar live tiles, no last-good copy
Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.