Tropical Storm Alfred (2017)

Basin

South Pacific

Dates

February 15, 2017 to February 22, 2017

Peak strength

Tropical Storm, 50 kt (58 mph)

Lowest pressure

985 mb (29.09 inHg)

Landfall

Yes

Accumulated cyclone energy

1.3

Identifier

SH062017

No source this site reads carries a casualty or damage figure for this storm.

• Tropical Storm BartSouth Pacific · 2017Tropical Storm40 kt · 993 mb
• Unnamed tropical stormSouth Pacific · 2017Tropical Storm45 kt · 989 mb
• Tropical Storm BlancheSouth Pacific · 2017Tropical Storm55 kt · 982 mb
• Cyclone DebbieSouth Pacific · 2017Cat 4115 kt · 937 mb
• Unnamed tropical stormSouth Pacific · 2017Tropical Storm40 kt · 993 mb
• Cyclone CookSouth Pacific · 2017Cat 290 kt · 956 mb
• Cyclone FrancesSouth Pacific · 2017Cat 180 kt · 963 mb
• Cyclone DonnaSouth Pacific · 2017Cat 4125 kt · 929 mb
• Cyclone EllaSouth Pacific · 2017Cat 170 kt · 970 mb

A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.

Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.