Chart / Storms

Tropical Storm Lowell

Archived — final advisory 59 · 1100 AM HST Thu Sep 10 2026 · complete life replay
This storm is no longer active. This page is its permanent record: the complete observed track, peak intensity, the final NHC forecast cone, and the last advisories as issued.
5 140
kt at peak
922
mb minimum
16.3
days tracked
0
vessels in final cone
Intensity over the storm's life — NHC best track
Sustained wind (kt, solid) and central pressure (mb, dashed) from the ATCF best track. Bands mark tropical-storm and hurricane category thresholds.
Final NHC Statements
Public Advisory (final captured)
000
WTPZ32 KNHC 300950
TCPEP2
 
BULLETIN
Tropical Storm Lowell Advisory Number  11
NWS National Hurricane Center Miami FL       EP122026
1100 PM HST Sat Aug 29 2026
 
...LOWELL HOLDING STEADY ON A WESTWARD TRACK...
 
 
SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION
-----------------------------------------------
LOCATION...13.2N 139.1W
ABOUT 1150 MI...1850 KM ESE OF HILO HAWAII
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES
 
 
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 1100 PM HST (0900 UTC), the center of Tropical Storm Lowell was
located near latitude 13.2 North, longitude 139.1 West. Lowell is
moving toward the west near 10 mph (17 km/h), and this general
motion will continue during the next several days.
 
Maximum sustained winds are near 50 mph (85 km/h) with higher gusts.
Gradual strengthening is expected during the next few days, and
Lowell could become a hurricane by Monday or Monday night.
 
Tropical-storm-force winds extend outward up to 80 miles (130 km)
from the center.
 
The estimated minimum central pressure is 1000 mb (29.53 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
None
 
 
NEXT ADVISORY
-------------
This is the last public advisory issued by the National Hurricane 
Center on this system. Future information on this system can be 
found in Public Advisories issued by the Central Pacific Hurricane 
Center beginning at 500 AM HST, under AWIPS header HFOTCPCP4, WMO 
header WTPA34 PHFO. Products will continue to be available on the 
web at hurricanes.gov
 
$$
Forecaster Gibbs
Forecast Discussion — the forecaster's reasoning
000
WTPZ42 KNHC 300836
TCDEP2
 
Tropical Storm Lowell Discussion Number  11
NWS National Hurricane Center Miami FL       EP122026
1100 PM HST Sat Aug 29 2026

Lowell remains a sheared tropical cyclone this evening. Moderate 
easterly vertical wind shear continues to displace the bulk of the 
deep convection over and west of the low-level circulation center. 
With little change in the satellite presentation, a blend of a 
scatterometer pass this evening, the latest objective intensity 
estimates, and the subjective Dvorak intensity estimate from TAFB 
supports holding the initial intensity at 45 kt for this advisory.
 
Lowell is moving westward, or 270/9 kt. A low- to mid-level ridge 
positioned north of the cyclone should remain the primary steering 
influence during the next couple of days, resulting in a continued 
generally westward motion. The track guidance remains in relatively 
good agreement during this period. Thereafter, considerable 
cross-track spread persists, likely due in part to the potential 
influence of Hurricane Karina to the northeast on Lowell's steering 
flow. The latest HCCA and Google DeepMind ensemble mean have changed 
little over the past several cycles and remain near the southern 
edge of the guidance envelope, while the GFS, regional hurricane 
models, and simple consensus (TVCN) continue to favor a gradual 
west-northwestward to northwestward turn later in the forecast 
period. Given the considerable spread among these solutions, the 
latest NHC track forecast continues to reflect a blend of the 
previous forecast, HCCA, and Google DeepMind ensemble mean.
 
Moderate easterly vertical wind shear continues to affect Lowell and 
should temper the rate of strengthening in the short term. The shear 
is forecast to decrease during the next day or so, which should 
allow the cyclone to become better organized. Gradual strengthening 
is forecast through about 36 h, followed by a faster rate of 
intensification through 72 h as environmental conditions become more 
favorable. Although some mid-level dry air could limit the rate of 
intensification, all of the intensity guidance supports continued 
strengthening, with Lowell forecast to become a hurricane in about 
48 h, with some additional strengthening thereafter. The intensity 
forecast becomes increasingly uncertain later in the period due to 
Lowell's potential interaction with Karina. A slower and more 
northwestward track, as shown by the GFS and some of the regional 
hurricane models, would bring Lowell closer to Karina and could 
expose the cyclone to stronger vertical wind shear associated with 
Karina's outflow, resulting in a weaker cyclone. Conversely, a 
farther-south track would likely keep the two cyclones sufficiently 
separated and allow Lowell to maintain its strength or continue 
strengthening. The latest NHC intensity forecast remains near the 
middle of the guidance envelope and is close to the consensus 
(IVCN).
 
Lowell is forecast to reach the central Pacific basin in the next 
few hours, and the next advisory will be issued by the Central 
Pacific Hurricane Center at 1500 UTC/500 AM HST. Users will not need 
to change where they obtain information on Lowell, which will 
continue to be available on the web at hurricanes.gov.
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  30/0900Z 13.2N 139.1W   45 KT  50 MPH
 12H  30/1800Z 13.0N 140.9W   50 KT  60 MPH
 24H  31/0600Z 13.0N 143.1W   55 KT  65 MPH
 36H  31/1800Z 13.1N 145.2W   60 KT  70 MPH
 48H  01/0600Z 13.3N 147.2W   70 KT  80 MPH
 60H  01/1800Z 13.4N 149.1W   80 KT  90 MPH
 72H  02/0600Z 13.5N 150.9W   90 KT 105 MPH
 96H  03/0600Z 14.0N 154.0W   95 KT 110 MPH
120H  04/0600Z 14.9N 157.6W   95 KT 110 MPH
 
$$
Forecaster Gibbs
Data & citation
Transit counts are gate-line crossings computed hourly from ChartNav's own live AIS network (terrestrial receivers; coverage varies by zone — the coverage figure above says how complete the picture is, and reporting gaps are only flagged for vessels that were underway and stopped reporting globally). Baselines are rolling medians of complete days. Numbers may differ from weekly satellite-AIS datasets such as IMF PortWatch, which lag by several days but see areas terrestrial receivers cannot.