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Tropical Storm Katia Track Map & Archive

Dissipated

Local time · Active from 29 Aug 2023 23:00 GMT-1 to 15 Sep 2023 09:00 GMT-3

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Estimated Storm Impact Analysis

Real-time analysis of population and infrastructure exposure within the storm's wind field.

Radius: ~600 km
👥 Estimated Population at Risk
13.84Mpeople
🏥 Hospitals & Medical Centers
252facilities
🏕️ Evacuation Shelters & Centers
769centers
🏫 Schools & Critical Infrastructure
1846buildings
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AI Historical Storm Matches

Compare historical storms by track, pressure changes, and rapid intensification patterns.

AI Trajectory Match
Nadine96% Similarity Score
MAX: 90 m/s
MIN: 1002 hPa
⚡ Rapid Intensification Risk:High Risk
View Historical Storm Track↗
Philippe96% Similarity Score
MAX: 90 m/s
MIN: 998 hPa
⚡ Rapid Intensification Risk:High Risk
View Historical Storm Track↗
Gert96% Similarity Score
MAX: 90 m/s
MIN: 998 hPa
⚡ Rapid Intensification Risk:High Risk
View Historical Storm Track↗

Basic Information

Peak Category

Tropical Depression

Minimum Pressure

998 hPa

Maximum Wind Speed

90 km/h

Region

West Pacific

Key Events

Formation

29 Aug 2023 23:00 GMT-1

14.9°N, -21.3°E

Dissipation

15 Sep 2023 09:00 GMT-3

11.8°N, -48.8°E

Frequently Asked Questions about Katia

No, Katia is no longer active. It dissipated or transitioned into an extratropical cyclone on 2023-09-15T12:00:00.000Z.
Katia formed on 2023-08-30T00:00:00.000Z and dissipated on 2023-09-15T12:00:00.000Z, reaching a peak intensity of tropical_depression.

Storm Timeline

Katia at 11.8°N, 48.8°W as Tropical Depression with winds of 25 km/h (16 mph)

Katia at 12.1°N, 49.0°W as Tropical Depression with winds of 25 km/h (16 mph)

Katia at 12.4°N, 49.1°W as Tropical Depression with winds of 25 km/h (16 mph)

Katia at 12.7°N, 49.2°W as Tropical Depression with winds of 25 km/h (16 mph)

Katia at 13.0°N, 49.2°W as Tropical Depression with winds of 25 km/h (16 mph)

Katia at 13.3°N, 49.0°W as Tropical Depression with winds of 25 km/h (16 mph)

Katia at 13.6°N, 48.8°W as Tropical Depression with winds of 25 km/h (16 mph)

Katia at 13.9°N, 48.6°W as Tropical Depression with winds of 25 km/h (16 mph)

Katia at 14.2°N, 48.4°W as Tropical Depression with winds of 25 km/h (16 mph)

Katia at 14.4°N, 48.2°W as Tropical Depression with winds of 25 km/h (16 mph)

Short-Lived Tropical Storm Katia Weakens Over Eastern Atlantic

Tropical Storm Katia formed in the eastern Atlantic on 31 August 2023 after a tropical wave moved westward from the coast of Africa. Katia peaked on 2 September with maximum sustained winds of 50 mph (≈43 kt) over open waters. The storm remained far from land throughout its lifecycle and produced no reported fatalities or damage. Katia dissipated on 4 September after weakening over the Atlantic, according to the National Hurricane Center’s post-season analysis.

Tropical Wave Off Africa Sparks Katia’s Formation

Katia developed from a tropical wave that emerged from the west coast of Africa on 29 August 2023. The disturbance moved west-northwestward toward the eastern Atlantic, where satellite observations and surface data showed the gradual formation of a closed circulation.

The system passed near the Cabo Verde Islands while convection slowly became more organized. At 1800 UTC on 31 August, the National Hurricane Center classified the disturbance as a tropical depression after confirming sufficient circulation and persistent thunderstorm activity.

Forecast monitoring began before official formation. The National Hurricane Center’s Tropical Weather Outlook products identified the possibility of tropical cyclone development several days in advance, with the eventual genesis area remaining within the forecast guidance range.

Katia followed an eastern Atlantic development pathway but remained isolated from populated regions. The storm tracked over open ocean, avoiding the Caribbean Sea, the western Atlantic islands, and the North American coastline.

Katia Reaches 50 mph Peak Well Offshore

Katia strengthened into a tropical storm on 1 September as its circulation became better organized. The storm reached its peak intensity at 1800 UTC on 2 September, with maximum sustained winds of 50 mph (≈43 kt) and a minimum central pressure of 998 mb, according to NHC’s post-season analysis.

Satellite-based analysis supported the intensity estimate through several observation methods, including Dvorak technique assessments and objective satellite intensity tools. With no aircraft reconnaissance or direct surface measurements available, satellite observations provided the primary evidence for tracking Katia’s strength.

At peak intensity, Katia was located well away from land in the eastern Atlantic. The cyclone maintained tropical storm characteristics for only a short period before environmental conditions became unfavorable.

Increasing southwesterly wind shear disrupted the storm’s circulation, while dry and stable air reduced the convection needed to maintain a compact tropical structure. These conditions caused Katia’s organization to decline soon after reaching its maximum intensity.

Wind Shear and Dry Air Dismantle Katia

After its peak on 2 September, Katia entered a weakening phase as the storm moved through a less supportive atmospheric environment. Satellite imagery showed decreasing thunderstorm activity near the center and a gradual loss of tropical organization.

By 3 September, Katia’s winds had weakened, and the system continued moving over open waters without threatening coastal areas. Forecast discussions highlighted the effects of increasing wind shear and limited moisture availability on the storm’s decline.

Katia weakened into a tropical depression on 4 September as its circulation became increasingly disorganized. The remaining low-level system continued drifting over the Atlantic before eventually losing its tropical cyclone characteristics.

The storm’s final track remained entirely offshore. No coastal watches or warnings were issued, and there were no reports of fatalities or damage associated with Katia.

Katia’s Short Lifecycle in the 2023 Atlantic Season

Katia’s 2023 lifecycle lasted only a few days, from tropical depression formation on 31 August to dissipation on 4 September. The storm reached tropical storm intensity but never developed into a hurricane or produced land impacts.

The cyclone provided forecasters with another example of how tropical systems can strengthen briefly before weakening when atmospheric conditions change. Its monitoring relied heavily on satellite observations, numerical guidance, and operational analysis used for remote oceanic storms.

Katia caused no impacts, with its record limited to formation, brief peak intensity, and dissipation over the eastern Atlantic.