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Hurricane Isaac

Aug 20, 2012 to Sep 1, 2012Peak 81 mph965 mb

Hurricane Isaac passed within 50 miles of 50 counties in 3 states. It was strongest near Lafourche Parish, LA, as a Category 1 on August 29, 2012.

  • Major hurricane
  • Hurricane
  • Tropical storm
  • Post-tropical
Watch how it happened

Hurricane Isaac · 2012

How it happened

Follow the storm’s path, strength and milestones.

About this replay
Date and time (UTC)—Historical replay — not a forecast
Wind speed—
Category—
Pressure—

From space

Hurricane Isaac on August 28, 2012, about 8 hours before landfall in Plaquemines Parish, LA.

Hurricane Isaac on August 28, 2012, about 8 hours before landfall in Plaquemines Parish, LA.
True-colour image from MODIS, aboard NASA’s Terra satellite, on its late-morning pass, around 16:25 UTC. Imagery: NASA Global Imagery Browse Services (GIBS), part of NASA’s Earth Observing System Data and Information System.

The storm

Peak strength
Category 1
81 mph, 70 kt
Lowest pressure
965 mb
Over the whole track
Counties within 50 miles
50
FL, LA, MS
Counties within 100 miles
78
FL, LA, MS, TX
Strongest near the U.S.
Category 1
Lafourche Parish, LA, 0.0 mi, Aug 29, 2012
Landfalls recorded
4
Anywhere on the track

Every county it passed

Closest approach to each county boundary, with the storm’s strength at that moment.

Counties within 100 miles
Lafourche ParishLA0.0Category 1Aug 29, 2012
Catahoula ParishLA0.0Tropical stormAug 30, 2012
Pointe Coupee ParishLA0.0Tropical stormAug 30, 2012
Jackson ParishLA0.0Tropical stormAug 30, 2012
Iberville ParishLA0.0Tropical stormAug 30, 2012
Winn ParishLA0.0Tropical stormAug 30, 2012
Ascension ParishLA0.0Tropical stormAug 30, 2012
LaSalle ParishLA0.0Tropical stormAug 30, 2012
Assumption ParishLA0.0Tropical stormAug 29, 2012
Terrebonne ParishLA0.0Category 1Aug 29, 2012
West Baton Rouge ParishLA0.0Tropical stormAug 30, 2012
Avoyelles ParishLA0.0Tropical stormAug 30, 2012
West Feliciana ParishLA1.3Tropical stormAug 30, 2012
Jefferson ParishLA1.4Category 1Aug 29, 2012
Concordia ParishLA2.2Tropical stormAug 30, 2012
Plaquemines ParishLA2.3Category 1Aug 29, 2012
Caldwell ParishLA2.7Tropical stormAug 30, 2012
St. James ParishLA3.3Tropical stormAug 29, 2012
East Baton Rouge ParishLA3.6Tropical stormAug 30, 2012
Wilkinson CountyMS5.1Tropical stormAug 30, 2012
Rapides ParishLA7.6Tropical stormAug 30, 2012
Grant ParishLA7.9Tropical stormAug 30, 2012
Iberia ParishLA8.5Tropical stormAug 30, 2012
St. Landry ParishLA8.7Tropical stormAug 30, 2012
St. Martin ParishLA10.7Tropical stormAug 29, 2012
Monroe CountyFL11.1Tropical stormAug 27, 2012
Adams CountyMS11.6Tropical stormAug 30, 2012
East Feliciana ParishLA12.2Tropical stormAug 30, 2012
St. John the Baptist ParishLA14.4Tropical stormAug 29, 2012
St. Mary ParishLA15.1Tropical stormAug 29, 2012
Livingston ParishLA17.9Tropical stormAug 30, 2012
St. Charles ParishLA19.8Tropical stormAug 29, 2012
Franklin ParishLA22.3Tropical stormAug 30, 2012
Richland ParishLA23.8Tropical stormAug 30, 2012
Natchitoches ParishLA27.5Tropical stormAug 30, 2012
Evangeline ParishLA30.4Tropical stormAug 30, 2012
St. Helena ParishLA31.0Tropical stormAug 30, 2012
Lafayette ParishLA31.7Tropical stormAug 30, 2012
Tensas ParishLA32.9Tropical stormAug 30, 2012
Amite CountyMS35.8Tropical stormAug 30, 2012
Tangipahoa ParishLA37.5Tropical stormAug 29, 2012
Orleans ParishLA40.1Tropical stormAug 29, 2012
Franklin CountyMS40.8Tropical stormAug 30, 2012
Acadia ParishLA41.1Tropical stormAug 30, 2012
Jefferson CountyMS43.2Tropical stormAug 30, 2012
St. Bernard ParishLA44.8Category 1Aug 29, 2012
Vermilion ParishLA45.1Tropical stormAug 30, 2012
Madison ParishLA47.8Tropical stormAug 30, 2012
Allen ParishLA49.3Tropical stormAug 30, 2012
Vernon ParishLA50.0Tropical stormAug 30, 2012
St. Tammany ParishLA51.0Tropical stormAug 29, 2012
Claiborne CountyMS52.5Tropical stormAug 30, 2012
De Soto ParishLA55.9Tropical stormAug 30, 2012
West Carroll ParishLA56.1Tropical stormAug 30, 2012
Sabine ParishLA61.2Tropical stormAug 30, 2012
Pike CountyMS62.3Tropical stormAug 30, 2012
East Carroll ParishLA62.8Tropical stormAug 30, 2012
Jefferson Davis ParishLA63.8Tropical stormAug 30, 2012
Warren CountyMS65.2Tropical stormAug 30, 2012
Washington ParishLA65.4Tropical stormAug 30, 2012
Lincoln CountyMS68.8Tropical stormAug 30, 2012
Beauregard ParishLA70.2Tropical stormAug 30, 2012
Copiah CountyMS73.8Tropical stormAug 30, 2012
Walthall CountyMS76.4Tropical stormAug 30, 2012
Hancock CountyMS76.7Category 1Aug 29, 2012
Cameron ParishLA77.1Tropical stormAug 30, 2012
Issaquena CountyMS81.1Tropical stormAug 30, 2012
Pearl River CountyMS81.8Tropical stormAug 29, 2012
Shelby CountyTX85.5Tropical stormAug 30, 2012
Hinds CountyMS85.6Tropical stormAug 30, 2012
Sabine CountyTX87.1Tropical stormAug 30, 2012
Calcasieu ParishLA88.0Tropical stormAug 30, 2012
Newton CountyTX88.8Tropical stormAug 30, 2012
Lawrence CountyMS89.6Tropical stormAug 30, 2012
Harrison CountyMS91.5Category 1Aug 29, 2012
Sharkey CountyMS92.3Tropical stormAug 30, 2012
Marion CountyMS94.0Tropical stormAug 30, 2012
San Augustine CountyTX100.0Tropical stormAug 30, 2012

Distances are measured from hourly positions interpolated between the National Hurricane Center’s six-hourly fixes to each county boundary. Strength is shown only where the storm was still tropical. Methodology.

National Hurricane Center HURDAT2. Storm totals cover the Atlantic and Northeast and Central Pacific basins.