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Tropical Storm Erick Discussion Number   3
NWS National Hurricane Center Miami FL       EP052025
300 AM CST Tue Jun 17 2025

Satellite imagery shows that the system is gradually becoming 
better organized.  TAFB determined a Dvorak data T-number of T2.5 
which is confirmed from a spiral banding measurement of roughly a 
0.5 wrap on enhanced IR images.  Therefore, the intensity estimate 
is set at 35 kt for this advisory, and the cyclone is being named.

Based on the latest center fixes, the motion remains 300/10 kt, as 
in the previous advisory.  A mid-level ridge to the north of the 
storm is forecast to weaken a bit by the global models, and this 
should result in a west-northwestward to northwestward motion at a 
slower forward speed.  The track guidance is in fairly good 
agreement and similar to the previous model runs.  It should 
be noted that the complexity of the track moving parallel to the 
coast of southern Mexico means that small changes in the system's 
heading will cause substantial differences in where and when the 
most significant wind impacts will occur.  The official track 
forecast is close to the various consensus solutions including the 
FSU Superensemble.  Users are reminded that the average 60-hour NHC 
track error is a little more than 60 n mi.

Erick is situated in an atmospheric and oceanic environment which 
appears to be very conducive for strengthening, with low shear, 
water temperatures near 29 deg C and mid-tropospheric humidities of 
75-80 percent.  The official intensity forecast is a little higher 
than the previous one, but some of the numerical guidance shows 
even more strengthening than that.  Moreover, the various Rapid 
Intensification (RI) indices show a significant chance for RI 
before landfall.  Thus, the NHC forecast for the peak strength of 
Erick could be conservative.

 
KEY MESSAGES:
 
1. Erick is expected to strengthen significantly before 
reaching the coast of southern Mexico, where a Hurricane Watch is 
in effect.
 
2. Erick will likely produce heavy rainfall across portions of 
Central America and southern Mexico through this week. 
Life-threatening flooding and mudslides are possible, especially in
areas of steep terrain.
 
3. A storm surge could produce coastal flooding near where the 
center crosses the coast.
 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  17/0900Z 11.9N  93.6W   35 KT  40 MPH
 12H  17/1800Z 12.5N  94.4W   45 KT  50 MPH
 24H  18/0600Z 13.2N  95.3W   55 KT  65 MPH
 36H  18/1800Z 14.0N  96.4W   65 KT  75 MPH
 48H  19/0600Z 15.3N  97.6W   85 KT 100 MPH
 60H  19/1800Z 16.8N  99.0W   85 KT 100 MPH...INLAND
 72H  20/0600Z 18.3N 101.0W   40 KT  45 MPH...INLAND
 96H  21/0600Z 20.0N 104.0W   20 KT  25 MPH...POST-TROP/INLAND
120H  22/0600Z...DISSIPATED
 
$$
Forecaster Pasch
 
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