Tropical Storm Iselle (2020)

Basin

Eastern Pacific

Dates

August 25, 2020 to August 31, 2020

Peak strength

Tropical Storm, 50 kt (58 mph)

Lowest pressure

997 mb (29.44 inHg)

Landfall

No; closest approach 100 km (62 mi)

Accumulated cyclone energy

2.5

Tropical-storm-force wind reached

90 nmi (167 km, 104 mi) from the center at its widest

Eyewall radius at its peak

20 nmi (37 km, 23 mi)

Overall size

160 nmi (296 km, 184 mi) to the outermost closed isobar

Peak gust in the best track

60 kt (69 mph)

Fastest the center moved

9 kt (10 mph)

Identifier

EP142020

The sources count different things and are not added together.

• Unnamed tropical depressionEastern Pacific · 2020Tropical Depression30 kt · 1006 mb
• Tropical Storm AmandaEastern Pacific · 2020 · 40 deathsTropical Storm35 kt · 1003 mb
• Tropical Storm BorisEastern Pacific · 2020Tropical Storm35 kt · 1005 mb
• Unnamed tropical depressionEastern Pacific · 2020Tropical Depression25 kt · 1006 mb
• Tropical Storm CristinaEastern Pacific · 2020Tropical Storm60 kt · 993 mb
• Unnamed tropical depressionEastern Pacific · 2020Tropical Depression30 kt · 1007 mb
• Unnamed tropical stormEastern Pacific · 2020Tropical Storm35 kt · 1006 mb
• Hurricane DouglasEastern Pacific · 2020Cat 4115 kt · 954 mb
• Hurricane ElidaEastern Pacific · 2020Cat 290 kt · 971 mb
• Unnamed tropical depressionEastern Pacific · 2020Tropical Depression30 kt · 1004 mb
• Tropical Storm FaustoEastern Pacific · 2020Tropical Storm35 kt · 1004 mb
• Hurricane GenevieveEastern Pacific · 2020 · 6 deathsCat 4115 kt · 950 mb
• Tropical Storm HernanEastern Pacific · 2020Tropical Storm40 kt · 1001 mb
• Tropical Storm JulioEastern Pacific · 2020Tropical Storm40 kt · 1004 mb
• Tropical Storm KarinaEastern Pacific · 2020Tropical Storm50 kt · 996 mb
• Tropical Storm LowellEastern Pacific · 2020Tropical Storm45 kt · 1001 mb
• Hurricane MarieEastern Pacific · 2020Cat 4120 kt · 945 mb
• Tropical Storm NorbertEastern Pacific · 2020Tropical Storm50 kt · 1000 mb
• Tropical Storm OdalysEastern Pacific · 2020Tropical Storm45 kt · 1000 mb
• Tropical Storm PoloEastern Pacific · 2020Tropical Storm40 kt · 1004 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.

• Tropical cyclone report, National Hurricane Center
• Every advisory and discussion NHC issued while it was live
• Best track as KMZ, National Hurricane Center
• Best track as a shapefile, National Hurricane Center