( cyclocane is a CYCLOne and hurriCANE tracker by hayley )
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 30 knots / 35 MPH
Max Predicted Wind Speed 30 knots / 35 MPH at
Spaghetti models for DOUGLAS can be found here:
000 WTPA32 PHFO 291435 TCPCP2 BULLETIN Post-Tropical Cyclone Douglas Advisory Number 37 NWS Central Pacific Hurricane Center Honolulu HI EP082020 500 AM HST Wed Jul 29 2020 ...DOUGLAS DEGENERATES TO A POST-TROPICAL LOW... ...WILL CROSS THE INTERNATIONAL DATE LINE LATER TODAY... SUMMARY OF 500 AM HST...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...24.7N 175.4W ABOUT 1135 MI...1830 KM WNW OF HONOLULU HAWAII ABOUT 270 MI...435 KM SSE OF MIDWAY ISLAND MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...W OR 275 DEGREES AT 23 MPH...37 KM/H MINIMUM CENTRAL PRESSURE...1012 MB...29.89 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... The Tropical Storm Warning for portions of the Papahanaumokuakea Marine National Monument from Maro Reef to Lisianski has been discontinued. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... None. DISCUSSION AND OUTLOOK ---------------------- At 500 AM HST (1500 UTC), the center of Post-Tropical Cyclone Douglas was located near latitude 24.7 North, longitude 175.4 West. The post-tropical cyclone is moving toward the west near 23 mph (37 km/h), and this general motion is expected to continue until Douglas crosses the International Date Line later today. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Weakening is forecast, and Douglas is expected to dissipate shortly after crossing the Date Line. The estimated minimum central pressure is 1012 mb (29.89 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Large seas and swells generated by Douglas will impact portions of the Papahanaumokuakea Marine National Monument west of Maro Reef today, then diminish tonight. NEXT ADVISORY ------------- This is the last public advisory issued by the Central Pacific Hurricane Center on this system. Additional information on the post-tropical low can be found in high seas forecasts issued by the National Weather Service under AWIPS head HFOHSFNP, WMO header FZPN40 PHFO, and on the web at https://www.weather.gov/hfo/HSFNP. $$ Forecaster Birchard
Public Advisory not available for this storm.
000 WTPA42 PHFO 291452 CCA TCDCP2 Post-Tropical Cyclone Douglas Discussion Number 37...CORRECTED NWS Central Pacific Hurricane Center Honolulu HI EP082020 452 AM HST Wed Jul 29 2020 A cluster of thunderstorms north of Douglas' center is producing an impressive amount of lightning this morning, but is not indicative of system reorganization. While these thunderstorms are indeed associated with Douglas' deteriorating circulation, they are removed from the center, and will soon be sheared away by persistent southerly vertical wind shear. Satellite imagery shows the exposed low-level circulation center becoming increasingly elongated, while an earlier ASCAT pass indicated little in the way of westerly flow in the southern semicircle. Douglas has degenerated into a post- tropical remnant low (and may already be an open wave) with maximum winds on the north side estimated to be near 30 kt. With Douglas' initial motion vector of 275/20 kt, associated hazards have moved west of the Papahanaumokuakea Marine National Monument, and the Tropical Storm Warning has been discontinued. A strong low-level ridge to the north will steer Douglas rapidly westward, with the remnant low expected to cross the International Date Line later today. As the remnant low rounds the ridge, it is expected to gain some latitude over the next 24 hours or so before dissipating, in line with global model guidance and the previous forecast. This is the last advisory issued by the Central Pacific Hurricane Center on Douglas. Additional information on this system can be found in the High Seas Forecasts issued by the National Weather Service in Honolulu under AWIPS header HFOHSFNP and WMO header FZPN40 PHFO. FORECAST POSITIONS AND MAX WINDS INIT 29/1500Z 24.7N 175.4W 30 KT 35 MPH...POST-TROP/REMNT LOW 12H 30/0000Z 25.0N 178.6W 30 KT 35 MPH...POST-TROP/REMNT LOW 24H 30/1200Z 25.9N 177.2E 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 31/0000Z...DISSIPATED $$ Forecaster Birchard
|30 knots||24.7, -175.4|
|30 knots||25.0, -178.6||POST-TROPICAL CYCLONE|
|25 knots||25.9, 177.2||POST-TROPICAL CYCLONE|
|0 knots||translation missing: en.DISSIPATED|
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