Hurricane Blanca (2015)

Basin

Eastern Pacific

Dates

May 31, 2015 to June 9, 2015

Peak strength

Category 4, 125 kt (144 mph)

Lowest pressure

936 mb (27.64 inHg)

Landfall

Yes

Accumulated cyclone energy

20.8

Tropical-storm-force wind reached

170 nmi (315 km, 196 mi) from the center at its widest

Hurricane-force wind reached

50 nmi (93 km, 58 mi) from the center at its widest

Eyewall radius at its peak

15 nmi (28 km, 17 mi)

Overall size

270 nmi (500 km, 311 mi) to the outermost closed isobar

Peak gust in the best track

145 kt (167 mph)

Fastest the center moved

18 kt (21 mph)

Identifier

EP022015

The sources count different things and are not added together.

Landfall points the US agencies flagged in the best track. The nearest town is named from the site’s gazetteer, not from the report.

NOAA’s Storm Events database, the record National Weather Service offices compile months after a storm, as compiled March 2026.

Deaths

0 (0 direct, 0 indirect)

Injuries

0

Property damage

none recorded

Crop damage

none recorded

Events recorded

1 in 1 reports from 1 states and marine areas

State by state

What was recorded

1 flash flood.

The Weather Prediction Center attributes 1,571 rain gauge totals over the contiguous United States to this storm. The wettest reached 2.70 inches (69 mm).

WPC’s storm rainfall file, 1900 to 2020, compiled by David Roth.

From the Storm Events narratives, unedited.

Strong thunderstorms produced flash flooding and mud/debris flows in southeast San Luis Obispo county. California Highway Patrol reported flash flooding at the intersection of Highway 33 and Highway 166.

San Luis Obispo, California · Flash Flood · Jun 11, 00:17 UTC

• Hurricane AndresEastern Pacific · 2015Cat 4125 kt · 937 mb
• Hurricane CarlosEastern Pacific · 2015Cat 180 kt · 978 mb
• Hurricane HalolaEastern Pacific · 2015Cat 285 kt · 959 mb
• Tropical Storm ElaEastern Pacific · 2015Tropical Storm40 kt · 1002 mb
• Tropical Storm IuneEastern Pacific · 2015Tropical Storm35 kt · 1004 mb
• Hurricane DoloresEastern Pacific · 2015Cat 4115 kt · 946 mb
• Tropical Storm EnriqueEastern Pacific · 2015Tropical Storm45 kt · 1000 mb
• Tropical Storm FeliciaEastern Pacific · 2015Tropical Storm35 kt · 1004 mb
• Hurricane GuillermoEastern Pacific · 2015Cat 295 kt · 967 mb
• Unnamed tropical depressionEastern Pacific · 2015Tropical Depression30 kt · 1006 mb
• Hurricane HildaEastern Pacific · 2015Cat 4125 kt · 937 mb
• Unnamed tropical depressionEastern Pacific · 2015Tropical Depression30 kt · 1003 mb
• Hurricane KiloEastern Pacific · 2015Cat 4120 kt · 940 mb
• Hurricane LokeEastern Pacific · 2015Cat 165 kt · 985 mb
• Hurricane IgnacioEastern Pacific · 2015Cat 4125 kt · 942 mb
• Hurricane JimenaEastern Pacific · 2015Cat 4135 kt · 932 mb
• Tropical Storm KevinEastern Pacific · 2015Tropical Storm50 kt · 998 mb
• Hurricane LindaEastern Pacific · 2015Cat 3110 kt · 950 mb
• Tropical Storm MaliaEastern Pacific · 2015Tropical Storm45 kt · 992 mb
• Unnamed tropical depressionEastern Pacific · 2015Tropical Depression30 kt · 1001 mb
• Tropical Storm NialaEastern Pacific · 2015Tropical Storm55 kt · 992 mb
• Hurricane MartyEastern Pacific · 2015Cat 170 kt · 987 mb
• Hurricane OhoEastern Pacific · 2015Cat 295 kt · 957 mb
• Unnamed tropical depressionEastern Pacific · 2015Tropical Depression30 kt · 1001 mb
• Tropical Storm NoraEastern Pacific · 2015Tropical Storm60 kt · 993 mb
• Hurricane OlafEastern Pacific · 2015Cat 4130 kt · 938 mb
• Hurricane PatriciaEastern Pacific · 2015 · $460 millionCat 5185 kt · 872 mb
• Tropical Storm RickEastern Pacific · 2015Tropical Storm35 kt · 1002 mb
• Hurricane SandraEastern Pacific · 2015Cat 4130 kt · 934 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
• Wikipedia article: Hurricane Blanca