EF0 tornado, Aguadilla, Puerto Rico, August 25, 2009

1. EF065 to 85 mphthis tornado

   Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

2. EF186 to 110 mph

   Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

3. EF2111 to 135 mph

   Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

4. EF3136 to 165 mph

   Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

5. EF4166 to 200 mph

   Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

6. EF5over 200 mph

   Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

7. Unrated

   The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

Rating

EF0

Date

August 25, 2009

Touchdown

3:30 PM CDT (20:30 UTC)

Lifted

3:35 PM CDT (20:35 UTC)

On the ground

5 minutes

Path length

0.0 miles (0.1 km)

Path width

1 yards (1 m)

Deaths

0

Injuries

0

Property damage

$15,000

County

Not recorded

Touchdown point

18.504, -67.125

Lift-off point

18.504, -67.125

Record number

0908251430-01

A tropical wave passed to the north of Puerto Rico and produced scattered showers and isolated strong thunderstorms across the northwest section. These thunderstorms moved slwoly north northwest and produced a waterspout that was reported moving inland near the Ramey sector of Aguadilla. Two homes suffered exterior damage due to the wind gusts that were estimated by residents around 40 mph.

Residents of Ramey sector in Aguadilla reported to emergency managers that a waterspout moved inland and impacted two homes in Kelly and Grubbs streets, causing damage to the exterior facade, fence, zinc roof, roof satellite TV dishes, yard equipment, and storage sheds.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The San Juan radar (TJUA), 119 km away, was scanning. The volume nearest the touchdown began at 20:28 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

The live radar over the trackEvery 2009 tornado in Puerto RicoEvery tornado in Puerto Rico since 1950Warnings in force in Puerto Rico nowThe forecast where you are

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.