Tropical Storm Ana (2015)

Basin

North Atlantic

Dates

May 6, 2015 to May 12, 2015

Peak strength

Tropical Storm, 50 kt (58 mph)

Lowest pressure

998 mb (29.47 inHg)

Landfall

Yes

Accumulated cyclone energy

1.2

Tropical-storm-force wind reached

140 nmi (259 km, 161 mi) from the center at its widest

Eyewall radius at its peak

60 nmi (111 km, 69 mi)

Overall size

210 nmi (389 km, 242 mi) to the outermost closed isobar

Peak gust in the best track

60 kt (69 mph)

Fastest the center moved

37 kt (43 mph)

Identifier

AL012015

Radar at KLTX as it neared land, May 10, 10:00 UTC

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

$20,500

Crop damage

none recorded

Events recorded

18 in 7 reports from 3 states and marine areas

State by state

What was recorded

12 tropical storm, 2 high surf, 1 tornado, 1 marine thunderstorm wind, 1 strong wind, 1 thunderstorm wind.

1 tornado recorded in the United States, strongest first.

The Weather Prediction Center attributes 2,177 rain gauge totals over the contiguous United States to this storm. The wettest reached 6.89 inches (175 mm).

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

The strongest winds National Weather Service offices recorded with this storm. An estimated figure is a forecaster’s judgment from the damage, not an instrument reading.

From the Storm Events narratives, unedited.

Slow moving Tropical Storm Ana produced tropical storm force winds with torrential rain for two days along the coast. A 43 kt gust was recorded at North Myrtle Beach with numerous reports over 35 kts along the coast. Rainfall amounts were between five and six inches. Some sporadic reports of street flooding were noted. The tidal surge was recorded at 2.3 feet at the Springmaid Pier with moderate beach erosion observed.

Coastal Horry, South Carolina · Tropical Storm · May 9, 13:00 UTC

Slow moving Tropical Storm Ana produced tropical storm force winds with torrential rain for two days along the coast. A 52 kt gust was recorded at the Ocean Crest Pier with numerous reports of 40 kts along the coast. Rainfall amounts over six inches were recorded at Oak Island and Southport. The storm surge produced one to three feet of overwash along East 5th Street and Shallotte Blvd.

Coastal Brunswick, North Carolina · Tropical Storm · May 9, 13:00 UTC

Slow moving Tropical Storm Ana produced tropical storm force winds with torrential rain for two days along the coast. Winds away from the coast gusted to around 35 kts at times. Rainfall amounts were between four and five inches. Sporadic reports of street flooding were noted.

Inland Horry, South Carolina · Tropical Storm · May 9, 13:00 UTC

A waterspout developed over the Croatan Sound and lifted northeast moving onshore over parts of Roanoke Island as a weak EF0 tornado producing minor damage. Winds were estimated at 80 mph with a few small trees blown down. One house on Vista Lake Drive had a portion of the roof partially removed. There were no injuries or fatalities. This water spout/weak tornado developed along a band of showers occurring on the backside of the remnants of Tropical Storm Ana.

Dare, North Carolina · Tornado · May 11, 21:10 UTC

• Tropical Storm BillNorth Atlantic · 2015Tropical Storm50 kt · 997 mb
• Tropical Storm ClaudetteNorth Atlantic · 2015Tropical Storm45 kt · 1003 mb
• Hurricane DannyNorth Atlantic · 2015Cat 3110 kt · 960 mb
• Tropical Storm ErikaNorth Atlantic · 2015 · 25 deathsTropical Storm45 kt · 1001 mb
• Hurricane FredNorth Atlantic · 2015Cat 175 kt · 986 mb
• Tropical Storm GraceNorth Atlantic · 2015Tropical Storm50 kt · 1000 mb
• Tropical Storm HenriNorth Atlantic · 2015Tropical Storm45 kt · 1003 mb
• Unnamed tropical depressionNorth Atlantic · 2015Tropical Depression30 kt · 1006 mb
• Tropical Storm IdaNorth Atlantic · 2015Tropical Storm45 kt · 1001 mb
• Hurricane JoaquinNorth Atlantic · 2015 · 34 deaths · $200 millionCat 4135 kt · 931 mb
• Hurricane KateNorth Atlantic · 2015Cat 175 kt · 980 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: Tropical Storm Ana