2018 Pacific hurricane season: Difference between revisions

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{{Infobox hurricane current
|name=HurricaneTropical Storm Rosa
|category=cat1storm
|type=hurricanetropical storm
|time=25:00 ap.m. [[Pacific Time Zone|PDT]] (0900:00 [[UTC]]) September 30
|image=Rosa 2018-09-29 0925Z.jpg
|track=143930 5day cone no line and wind.png
|lat=2325.36|N|lon=118.8|W
|within_units=15 [[nautical mile|nm]]
|distance_from=About 385235 mi (625380 km) SW of [[Punta Eugenia|Punta Eugenia, Mexico]]<br>About 585420 mi (940675 km) SSW of [[San Felipe, Baja California]]
|1sustained=6560 kt (7570 mph; 140110 km/h)
|gusts=80 kt (90 mph; 165145 km/h)
|pressure=984985 [[mbar]] ([[Pascal (unit)|hPa]]; 2829.8009 [[Inches of Mercury|inHg]])
|movement=[[Points of the compass|NNNE]] at 10 kt (12 mph; 19 km/h)
}}
At 18:00 UTC on September 19, the NHC forecasted an area of low pressure that would develop in a few days.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/xgtwo/gtwo_archive.php?current_issuance=201809192048&basin=epac&fdays=5|title=NHC Graphical Outlook Archive|website=www.nhc.noaa.gov|access-date=2018-09-19}}</ref> At 00:00 UTC on September 23, a broad area of disturbed weather formed where the NHC predicted.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/xgtwo/gtwo_archive.php?current_issuance=201809222324&basin=epac&fdays=5|title=NHC Graphical Outlook Archive|website=www.nhc.noaa.gov|access-date=2018-09-22}}</ref> Gradual development occurred and the system organized into a tropical depression at 09:00 UTC on September 25.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/xgtwo/gtwo_archive.php?current_issuance=201809250844&basin=epac&fdays=5|title=NHC Graphical Outlook Archive|website=www.nhc.noaa.gov|access-date=2018-09-24}}</ref> The depression then developed into a tropical storm and was given the name, ''Rosa'', at 15:00 UTC on the same day.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/xgtwo/gtwo_archive.php?current_issuance=201809251435&basin=epac&fdays=5|title=NHC Graphical Outlook Archive|website=www.nhc.noaa.gov|access-date=2018-09-25}}</ref> Rosa gradually strengthened and at 03:00 UTC on September 26, Rosa intensified into a hurricane.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/2018/ep20/ep202018.public.006.shtml?|title=Hurricane Rosa Advisory Number 6|author=Dave Roberts|publisher=National Hurricane Center|date=September 26, 2018|accessdate=September 26, 2018|location=Miami, Florida}}</ref> At 21:00 UTC on September 27, Rosa then rapidly intensified and became the seventh Category 4 hurricane of the season.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/2018/ep20/ep202018.public.012.shtml?|title=Hurricane Rosa Advisory Number 12|author= Eric Blake|publisher=National Hurricane Center|date=September 27, 2018|accessdate=September 27, 2018|location=Miami, Florida}}</ref> Late on September 28, Rosa started weakening due to an eyewall replacement cycle and rapidly lost structure, falling to Category 3 status. Early on September 29 Rosa weakened below Category 3 status. By the afternoon Rosa started re-intensifying after the eyewall replacement was completed. Late on September 29, Rosa started to weaken yet again as it was hit by high amounts of wind shear and by early morning on September 30, weakened to a Category 1 Hurricane en-route to Baja California.
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