Hurricanes & Tropical Storms - July 2011


NCDC transitioned to the nClimDiv dataset on Thursday, March 13, 2014. This was coincident with the release of the February 2014 monthly monitoring report. For details on this transition, please visit our public FTP site and our U.S. Climate Divisional Database site.


Note: This report catalogs recent tropical cyclones and places each basin's tropical cyclone activity in a climate-scale context. It is not updated in real time. Users seeking real time status and forecasts of tropical cyclones should visit The National Hurricane Center.

East North Pacific Basin

Calvin
Tropical Storm Calvin Satellite Image
Calvin Track
Tropical Storm Calvin Forecast Track


Safir Simpson Color Legend for Track Map from Unisys
Saffir-Simpson Scale Color Legend
Tropical Cyclone Summary
Tropical Cyclone Calvin
Cyclogenesis Date 07/08
Cyclolysis Date 07/10
Highest Saffir-Simpson Category Cat 1
Maximum 6-hr Sustained Wind 92 mph (80 kt or 148 km/h)
Min Pressure 984 mbar
Accumulated Cyclone Energy (ACE*) Index (kt2) 3.5950 x 104
Landfall Information (date, location and sustained winds)
Deaths 0
*The (ACE) Index calculations are based on preliminary data.


Dora
Tropical Storm Dora Satellite Image
Dora Track
Tropical Storm Dora Forecast Track


Safir Simpson Color Legend for Track Map from Unisys
Saffir-Simpson Scale Color Legend
Tropical Cyclone Summary
Tropical Cyclone Dora
Cyclogenesis Date 07/18
Cyclolysis Date 07/24
Highest Saffir-Simpson Category Cat 4
Maximum 6-hr Sustained Wind 138 mph (120 kt or 222 km/h)
Min Pressure 929 mbar
Accumulated Cyclone Energy (ACE*) Index (kt2) 14.6675 x 104
Landfall Information (date, location and sustained winds)
Deaths 0
*The (ACE) Index calculations are based on preliminary data.


Eugene
Tropical Storm Eugene Satellite Image
Eugene Track
Tropical Storm Eugene Forecast Track


Safir Simpson Color Legend for Track Map from Unisys
Saffir-Simpson Scale Color Legend
Tropical Cyclone Summary
Tropical Cyclone Eugene
Cyclogenesis Date 07/31
Cyclolysis Date 08/06
Highest Saffir-Simpson Category Cat 4
Maximum 6-hr Sustained Wind 138 mph (120 kt or 222 km/h)
Min Pressure 942 mbar
Accumulated Cyclone Energy (ACE*) Index (kt2) 14.6675 x 104
Landfall Information (date, location and sustained winds)
Deaths 0
*The (ACE) Index calculations are based on preliminary data.


West North Pacific Basin

Ma-on
Tropical Storm Ma-on Satellite Image
Ma-on Track
Tropical Storm Ma-on Forecast Track


Safir Simpson Color Legend for Track Map from Unisys
Saffir-Simpson Scale Color Legend
Tropical Cyclone Summary
Tropical Cyclone Ma-on
Cyclogenesis Date 07/12
Cyclolysis Date 07/21
Highest Saffir-Simpson Category Cat 4
Maximum 6-hr Sustained Wind 132 mph (115 kt or 213 km/h)
Min Pressure 935 mbar
Accumulated Cyclone Energy (ACE*) Index (kt2) 24.8525 x 104
Landfall Information (date, location and sustained winds) 07/19 - Southern coast of Shikoku Island, Japan (65 kt or 120 km/h)
Deaths 0
*The (ACE) Index calculations are based on preliminary data.


Nock-ten
Tropical Storm Nock-ten Satellite Image
Nock-ten Track
Tropical Storm Nock-ten Forecast Track


Safir Simpson Color Legend for Track Map from Unisys
Saffir-Simpson Scale Color Legend
Tropical Cyclone Summary
Tropical Cyclone Nock-ten(Juaning)
Cyclogenesis Date 07/26
Cyclolysis Date 07/30
Highest Saffir-Simpson Category Cat 1
Maximum 6-hr Sustained Wind 75 mph (65 kt or 120 km/h)
Min Pressure 984 mbar
Accumulated Cyclone Energy (ACE*) Index (kt2) 4.4325 x 104
Landfall Information (date, location and sustained winds) 07/27 - Northern coast of Luzon, Philippines (65 kt or 120 km/h)
07/29 - Southern China (55 kt or 102 km/h)
07/30 - Northern coast of Vietnam (45 kt or 83 km/h)
Deaths 100
*The (ACE) Index calculations are based on preliminary data.



Muifa
Tropical Storm Muifa Satellite Image
Muifa Track
Tropical Storm Muifa Forecast Track


Safir Simpson Color Legend for Track Map from Unisys
Saffir-Simpson Scale Color Legend
Tropical Cyclone Summary
Tropical Cyclone Muifa(Kabayan)
Cyclogenesis Date 07/28
Cyclolysis Date 08/08
Highest Saffir-Simpson Category Cat 5
Maximum 6-hr Sustained Wind 161 mph (140 kt or 259 km/h)
Min Pressure 930 mbar
Accumulated Cyclone Energy (ACE*) Index (kt2) 36.2025 x 104
Landfall Information (date, location and sustained winds) 08/08 - Yalu River (50 kt or 93 km/h)
Deaths 22
*The (ACE) Index calculations are based on preliminary data.


Atlantic Basin

Bret
Tropical Storm Bret Satellite Image
Bret Track
Tropical Storm Bret Forecast Track


Safir Simpson Color Legend for Track Map from Unisys
Saffir-Simpson Scale Color Legend
Tropical Cyclone Summary
Tropical Cyclone Bret
Cyclogenesis Date 07/18
Cyclolysis Date 07/21
Highest Saffir-Simpson Category TS
Maximum 6-hr Sustained Wind 63 mph (55 kt or 102 km/h)
Min Pressure 996 mbar
Accumulated Cyclone Energy (ACE*) Index (kt2) 2.9450 x 104
Landfall Information (date, location and sustained winds)
Deaths 0
*The (ACE) Index calculations are based on preliminary data.


Cindy
Tropical Storm Cindy Satellite Image
Cindy Track
Tropical Storm Cindy Forecast Track


Safir Simpson Color Legend for Track Map from Unisys
Saffir-Simpson Scale Color Legend
Tropical Cyclone Summary
Tropical Cyclone Cindy
Cyclogenesis Date 07/20
Cyclolysis Date 07/22
Highest Saffir-Simpson Category TS
Maximum 6-hr Sustained Wind 58 mph (50 kt or 93 km/h)
Min Pressure 1000 mbar
Accumulated Cyclone Energy (ACE*) Index (kt2) 1.8425 x 104
Landfall Information (date, location and sustained winds)
Deaths 0
*The (ACE) Index calculations are based on preliminary data.


Don
Tropical Storm Don Satellite Image
Don Track
Tropical Storm Don Forecast Track


Safir Simpson Color Legend for Track Map from Unisys
Saffir-Simpson Scale Color Legend
Tropical Cyclone Summary
Tropical Cyclone Don
Cyclogenesis Date 07/28
Cyclolysis Date 07/29
Highest Saffir-Simpson Category TS
Maximum 6-hr Sustained Wind 52 mph (45 kt or 83 km/h)
Min Pressure 998 mbar
Accumulated Cyclone Energy (ACE*) Index (kt2) 1.3325 x 104
Landfall Information (date, location and sustained winds)
Deaths 0
*The (ACE) Index calculations are based on preliminary data.

Citing This Report

NOAA National Climatic Data Center, State of the Climate: Hurricanes & Tropical Storms for July 2011, published online August 2011, retrieved on December 20, 2014 from http://www.ncdc.noaa.gov/sotc/tropical-cyclones/2011/7.