Advisories

000
WTPA42 PHFO 250238
TCDCP2
 
Tropical Storm Lala Discussion Number  51
NWS Central Pacific Hurricane Center Honolulu HI   CP012026
Issued by NWS National Hurricane Center Miami FL
500 PM HST Mon Aug 24 2026

ASCAT data that arrived after the issuance of the previous advisory 
indicated that Lala has weakened slightly. The ASCAT-B pass showed 
maximum winds between 40-45 kt, with slightly smaller 34 kt wind 
radii than previously estimated. Accounting for some likely 
undersampling, the initial intensity has been set to 50 kt for this 
advisory. The ASCAT data also indicted Lala is centered slightly 
northeast of previous estimates.

The official track forecast for Lala has been shifted slightly 
northward, mainly due to the initial position adjustment. Otherwise, 
the reasoning behind the forecast is unchanged. Lala is expected to 
move slowly northwestward for the next several days, between a weak 
ridge to its northeast and a weak trough to its southwest. The NHC 
forecast track remains similar to the GDMI and HCCA forecasts 
through 72 h, and then weighs some of the global models a little 
more heavily after that for the post-tropical part of the forecast.
 
No change of note was made to the NHC intensity or size forecast for 
Lala. The tropical storm is moving over cool SSTs and through a 
moderately dry environment (RH less than 50 percent based on GFS and 
ECMWF SHIPS diagnostics). In about 2 days, an increase in south or 
southwesterly wind shear should contribute to Lala losing its deep 
convection and becoming a remnant low about a day after that, near 
the dateline. Simulated satellite imagery from the GFS, ECMWF and 
various hurricane models also agrees with that timing.
 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  25/0300Z 34.3N 175.6W   50 KT  60 MPH
 12H  25/1200Z 34.7N 176.3W   45 KT  50 MPH
 24H  26/0000Z 35.1N 177.2W   45 KT  50 MPH
 36H  26/1200Z 35.6N 178.0W   40 KT  45 MPH
 48H  27/0000Z 36.2N 178.7W   40 KT  45 MPH
 60H  27/1200Z 37.1N 179.3W   35 KT  40 MPH
 72H  28/0000Z 38.1N 180.0E   30 KT  35 MPH...POST-TROP/REMNT LOW
 96H  29/0000Z 40.0N 178.5E   25 KT  30 MPH...POST-TROP/REMNT LOW
120H  30/0000Z 43.0N 176.5E   20 KT  25 MPH...POST-TROP/REMNT LOW
 
$$
Forecaster D. Zelinsky