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This is the final warning / advisory for this storm as it has weakened below warning levels and/or the storm system is no longer a tropical cyclone.
Current Wind Speed 45 knots / 50 MPH
Max Predicted Wind Speed 45 knots / 50 MPH at
Spaghetti models for NORMAN can be found here:
NORMAN spaghetti models page »
725 WTPA34 PHFO 082124 TCPCP4 BULLETIN Tropical Storm Norman Advisory Number 47 NWS Central Pacific Hurricane Center Honolulu HI EP162018 1100 AM HST Sat Sep 08 2018 ...NORMAN QUICKLY BECOMING POST-TROPICAL... ...THIS IS THE LAST ADVISORY... SUMMARY OF 1100 AM HST...2100 UTC...INFORMATION ----------------------------------------------- LOCATION...26.9N 154.6W ABOUT 440 MI...705 KM NNE OF HONOLULU HAWAII ABOUT 500 MI...800 KM N OF HILO HAWAII MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...N OR 360 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 AM HST (2100 UTC), the center of Tropical Storm Norman was located near latitude 26.9 North, longitude 154.6 West. Norman is moving toward the north near 10 mph (17 km/h), and this general motion is expected to continue for the next couple of days. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Although Norman is becoming post-tropical, little change in intensity is expected over the next couple of days. Tropical-storm-force winds extend outward up to 140 miles (220 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 Central Pacific Hurricane Center on this system. For additional information on the post-tropical low, please see High Seas Forecasts issued by the National Weather Service, under AWIPS header HFOHSFNP, WMO header FZPN40 PHFO, and on the web at http://www.prh.noaa.gov/hnl/pages/HSFNP.php $$ Forecaster Birchard
Public Advisory not available for this storm.
685 WTPA44 PHFO 082123 TCDCP4 Tropical Storm Norman Discussion Number 47...RESENT NWS Central Pacific Hurricane Center Honolulu HI EP162018 1100 AM HST Sat Sep 08 2018 Norman is quickly losing the characteristics of a tropical cyclone as strong vertical wind shear is taking its toll. The low-level circulation center (LLCC) has been exposed for the better part of a day now, with sporadic deep convection in the northern semicircle remaining well removed from the center. Visible satellite imagery shows the LLCC becoming increasingly elongated, now marked by a 90 nm X 30 nm wide clear area. Intensity estimates support lowering the initial intensity to 45 kt for this advisory as Norman continues to spin down. The track forecast takes Norman generally toward the north through day 3 before briefly turning it northwestward before dissipation on day 5, in line with GFEX. It appears that Norman will still produce at least gale force winds for the next couple of days as it interacts with a developing cold-core low to its northwest, with GFS indicating winds in excess of 50 kt in 24-36 hours. While this seems a little extreme, the official intensity forecast indicates little change in intensity through day 2, with gradual weakening thereafter. This will be the last advisory issued by CPHC on this system. FORECAST POSITIONS AND MAX WINDS INIT 08/2100Z 26.9N 154.6W 45 KT 50 MPH 12H 09/0600Z 28.4N 154.6W 40 KT 45 MPH...POST-TROPICAL 24H 09/1800Z 30.2N 154.4W 40 KT 45 MPH...POST-TROPICAL 36H 10/0600Z 32.0N 154.1W 40 KT 45 MPH...POST-TROPICAL 48H 10/1800Z 33.5N 154.2W 35 KT 40 MPH...POST-TROPICAL 72H 11/1800Z 35.0N 155.5W 30 KT 35 MPH...POST-TROP/REMNT LOW 96H 12/1800Z 35.5N 157.0W 20 KT 25 MPH...POST-TROP/REMNT LOW 120H 13/1800Z...DISSIPATED $$ Forecaster Birchard
Time | Speed | Location | Status |
---|---|---|---|
45 knots | 26.9, -154.6 | ||
40 knots | 28.4, -154.6 | translation missing: en.POST-TROPICAL | |
40 knots | 30.2, -154.4 | translation missing: en.POST-TROPICAL | |
40 knots | 32.0, -154.1 | translation missing: en.POST-TROPICAL | |
35 knots | 33.5, -154.2 | translation missing: en.POST-TROPICAL | |
30 knots | 35.0, -155.5 | POST-TROPICAL CYCLONE | |
20 knots | 35.5, -157.0 | POST-TROPICAL CYCLONE | |
0 knots | translation missing: en.DISSIPATED |
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