The 2011 season

Tropical Storm Don (2011)

Tropical Storm Don peaked at 45 kt in the North Atlantic between July 27, 2011 and July 30, 2011, with a lowest pressure of 997 mb, and made landfall.

Radar

Reflectivity now over Tropical Storm Don. Open it to see storms, cones and warnings on the map.

Open the live radar with storms, cones and warnings

Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.

The storm

Basin
North Atlantic
Dates
July 27, 2011 to July 30, 2011
Peak strength
Tropical Storm, 45 kt (52 mph)
Lowest pressure
997 mb (29.44 inHg)
Landfall
Yes
Accumulated cyclone energy
1.6
Tropical-storm-force wind reached
60 nmi (111 km, 69 mi) from the center at its widest
Eyewall radius at its peak
20 nmi (37 km, 23 mi)
Overall size
110 nmi (204 km, 127 mi) to the outermost closed isobar
Peak gust in the best track
55 kt (63 mph)
Fastest the center moved
14 kt (16 mph)
Identifier
AL042011

Radar at KCRP as it neared land, Jul 30, 02:30 UTC

Deaths and damage

No source this site reads carries a casualty or damage figure for this storm.

Landfall

Time (UTC)WherePositionWindPressure
Jul 30, 02:30Sarita, TX, 39 km away27.3N 97.4W30 kt (35 mph)1007 mb

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

Track

Time (UTC)PositionWindPressureStatus
Jul 27, 06:0021.6N 85.7W30 kt1007 mbTropical depression
Jul 27, 12:0021.8N 86.2W30 kt1006 mbTropical depression
Jul 27, 18:0022.0N 86.7W35 kt1003 mbTropical storm
Jul 28, 00:0022.3N 87.4W35 kt1000 mbTropical storm
Jul 28, 06:0022.9N 88.4W35 kt1000 mbTropical storm
Jul 28, 12:0023.7N 89.5W40 kt1001 mbTropical storm
Jul 28, 18:0024.2N 90.7W40 kt1004 mbTropical storm
Jul 29, 00:0024.6N 91.9W45 kt997 mbTropical storm
Jul 29, 06:0025.1N 93.1W45 kt1000 mbTropical storm
Jul 29, 12:0025.8N 94.3W45 kt1002 mbTropical storm
Jul 29, 18:0026.4N 95.5W45 kt1004 mbTropical storm
Jul 30, 00:0027.0N 96.9W35 kt1006 mbTropical storm
Jul 30, 02:30 landfall27.3N 97.4W30 kt1007 mbTropical depression
Jul 30, 06:0027.8N 98.1W25 kt1009 mbLow

Other North Atlantic storms of 2011

What this means

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.

Sources

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.