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Tropical Storm Allison

Jun 5, 2001 to Jun 19, 2001Peak 58 mph1000 mb

Tropical Storm Allison passed within 50 miles of 31 counties in 4 states. It was strongest near Brazoria County, TX, as a tropical storm on June 5, 2001.

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

Tropical Storm Allison · 2001

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

Tropical Storm Allison on June 5, 2001, about 4 hours before landfall in Brazoria County, TX.

Tropical Storm Allison on June 5, 2001, about 4 hours before landfall in Brazoria County, TX.
True-colour image from MODIS, aboard NASA’s Terra satellite, on its late-morning pass, around 16:50 UTC. Imagery: NASA Global Imagery Browse Services (GIBS), part of NASA’s Earth Observing System Data and Information System.

The storm

Peak strength
Tropical storm
58 mph, 50 kt
Lowest pressure
1000 mb
Over the whole track
Counties within 50 miles
31
AL, LA, MS, TX
Counties within 100 miles
59
AL, CT, LA, MS, NJ, NY, TX
Strongest near the U.S.
Tropical storm
Brazoria County, TX, 0.0 mi, Jun 5, 2001
Landfalls recorded
2
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
St. Tammany ParishLA0.0Subtropical stormJun 11, 2001
Brazoria CountyTX0.0Tropical stormJun 5, 2001
Stone CountyMS0.0Subtropical stormJun 11, 2001
Mobile CountyAL0.0Subtropical stormJun 11, 2001
Pearl River CountyMS0.0Subtropical stormJun 11, 2001
St. Charles ParishLA0.0Subtropical stormJun 11, 2001
George CountyMS0.0Subtropical stormJun 11, 2001
Harris CountyTX0.0Tropical stormJun 6, 2001
St. John the Baptist ParishLA1.5Subtropical stormJun 11, 2001
Greene CountyMS1.5Subtropical stormJun 11, 2001
Tangipahoa ParishLA1.6Subtropical stormJun 11, 2001
Galveston CountyTX3.2Tropical stormJun 6, 2001
Jefferson ParishLA3.3Subtropical stormJun 11, 2001
Hancock CountyMS4.9Subtropical stormJun 11, 2001
Harrison CountyMS5.0Subtropical stormJun 11, 2001
Orleans ParishLA5.0Subtropical stormJun 11, 2001
Perry CountyMS5.7Subtropical stormJun 11, 2001
Jackson CountyMS8.0Subtropical stormJun 11, 2001
Forrest CountyMS8.7Subtropical stormJun 11, 2001
Livingston ParishLA13.9Subtropical stormJun 11, 2001
Ascension ParishLA14.3Subtropical stormJun 11, 2001
Washington ParishLA14.5Subtropical stormJun 11, 2001
St. Bernard ParishLA18.9Subtropical stormJun 11, 2001
Lamar CountyMS19.3Subtropical stormJun 11, 2001
Plaquemines ParishLA24.0Subtropical stormJun 11, 2001
Marion CountyMS25.8Subtropical stormJun 11, 2001
Walthall CountyMS32.6Subtropical stormJun 11, 2001
St. Helena ParishLA38.7Subtropical stormJun 11, 2001
Jones CountyMS38.9Subtropical stormJun 11, 2001
Pike CountyMS47.1Subtropical stormJun 11, 2001
Covington CountyMS48.0Subtropical stormJun 11, 2001
Jefferson Davis CountyMS51.7Subtropical stormJun 11, 2001
East Feliciana ParishLA52.0Subtropical stormJun 11, 2001
Amite CountyMS57.2Subtropical stormJun 11, 2001
Lawrence CountyMS58.0Subtropical stormJun 11, 2001
Jasper CountyMS63.9Subtropical stormJun 11, 2001
Monmouth CountyNJ64.8Subtropical stormJun 17, 2001
Lincoln CountyMS65.9Subtropical stormJun 11, 2001
Smith CountyMS70.2Subtropical stormJun 11, 2001
Nassau CountyNY74.8Subtropical stormJun 17, 2001
Wilkinson CountyMS75.3Subtropical stormJun 11, 2001
Simpson CountyMS75.4Subtropical stormJun 11, 2001
Franklin CountyMS79.7Subtropical stormJun 11, 2001
Queens CountyNY83.5Subtropical stormJun 17, 2001
Copiah CountyMS84.3Subtropical stormJun 11, 2001
Middlesex CountyNJ85.8Subtropical stormJun 17, 2001
Kings CountyNY86.6Subtropical stormJun 17, 2001
Newton CountyMS89.8Subtropical stormJun 11, 2001
Richmond CountyNY92.0Subtropical stormJun 17, 2001
Rankin CountyMS94.3Subtropical stormJun 11, 2001
Fairfield CountyCT95.4Subtropical stormJun 17, 2001
Bronx CountyNY96.8Subtropical stormJun 17, 2001
New York CountyNY96.8Subtropical stormJun 17, 2001
Hudson CountyNJ97.5Subtropical stormJun 17, 2001
Jefferson CountyMS97.7Subtropical stormJun 11, 2001
Union CountyNJ97.7Subtropical stormJun 17, 2001
Scott CountyMS97.8Subtropical stormJun 11, 2001
Adams CountyMS98.1Subtropical stormJun 11, 2001
Somerset CountyNJ98.3Subtropical stormJun 17, 2001

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.