Puerto Rico, 2022Flash Flooding and Heavy Rain in Puerto Rico, January 31, 2022
January 31, 2022 · NWS SJU · 9 events in 2 counties and zones
The combination of a pre-frontal trough and a shearline increased low-level convergence of moisture along the north-central and northeastern sections of Puerto Rico on the evening of January 31st. This led to the rapid development of thunderstorms and locally heavy showers concentrating over the San Juan metropolitan area and nearby municipalities.
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 9
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The combination of a pre-frontal trough and a shearline increased low-level convergence of moisture along the north-central and northeastern sections of Puerto Rico on the evening of January 31st. This led to the rapid development of thunderstorms and locally heavy showers concentrating over the San Juan metropolitan area and nearby municipalities. Between 2 and 5 inches of rain fell in a period of 2-3 hours, this caused flash flooding across many urban areas of San Juan and Guaynabo.
Heavy Rain, Guaynabo
- When
- January 31, 5:00 PM AST to 8:00 PM AST
- Where
- Guaynabo County, 7.81 mi NW of Guaynabo
- Reported by
- Mesonet
- Coordinates
- 18.412, -66.112
The rain gauge at Quebrada Margarita reported 3.48 inches in a period of 3 hours, from 5 to 8 PM.
Flash Flood, Guaynabo
- When
- January 31, 6:44 PM AST to 7:44 PM AST
- Where
- Guaynabo County, 6.64 mi WNW of Guaynabo to 6.48 mi WNW of Guaynabo
- Cause
- Heavy Rain
- Reported by
- 911 Call Center
- Coordinates
- 18.367, -66.123
Flooding from heavy rainfall affected residences in Torrecillas street in Guaynabo.
Flash Flood, Guaynabo
- When
- January 31, 6:51 PM AST to 9:45 PM AST
- Where
- Guaynabo County, 6.96 mi NW of Guaynabo to 6.98 mi NW of Guaynabo
- Cause
- Heavy Rain
- Reported by
- State Official
- Coordinates
- 18.399, -66.107
Two people were trapped in their car due to flash flooding in PR-119, AVE. Luis Vigoreaux.
Flash Flood, San Juan
- When
- January 31, 6:54 PM AST to 9:45 PM AST
- Where
- San Juan County, 3.02 mi W of San Juan to 2.98 mi W of San Juan
- Cause
- Heavy Rain
- Reported by
- State Official
- Coordinates
- 18.387, -66.096
Several People were trapped in their cars due to flooding in Ave. San Alfonso, Rio Piedras.
Flash Flood, Guaynabo
- When
- January 31, 6:54 PM AST to 9:45 PM AST
- Where
- Guaynabo County, 5.8 mi WNW of Guaynabo to 5.38 mi WNW of Guaynabo
- Cause
- Heavy Rain
- Reported by
- State Official
- Coordinates
- 18.373, -66.106
Flash flooding was reported in Street 20, near House 174 at Urb. Ponce de Leon.
Flash Flood, San Juan
- When
- January 31, 6:54 PM AST to 9:45 PM AST
- Where
- San Juan County, 2.4 mi SW of San Juan to 2.34 mi SW of San Juan
- Cause
- Heavy Rain
- Reported by
- State Official
- Coordinates
- 18.354, -66.075
Flash flooding was reported at Tulip Street, Urb. Vilanova.
Flash Flood, Guaynabo
- When
- January 31, 6:54 PM AST to 9:45 PM AST
- Where
- Guaynabo County, 4.64 mi WNW of Guaynabo to 4.65 mi WNW of Guaynabo
- Cause
- Heavy Rain
- Reported by
- State Official
- Coordinates
- 18.363, -66.091
Flash flooding was reported at Onfala Street, near Ave. Apolo in Guaynabo.
Flash Flood, San Juan
- When
- January 31, 6:58 PM AST to 9:45 PM AST
- Where
- San Juan County, 2.41 mi WNW of San Juan to 2.39 mi WNW of San Juan
- Cause
- Heavy Rain
- Reported by
- State Official
- Coordinates
- 18.393, -66.084
Two people were trapped in their car due to flooding in Ave. de Diego in front of a Puma Gas Station and Suiza Dairy.
Flash Flood, Guaynabo
- When
- January 31, 6:58 PM AST to 9:45 PM AST
- Where
- Guaynabo County, 6.9 mi NW of Guaynabo to 6.88 mi NW of Guaynabo
- Cause
- Heavy Rain
- Reported by
- State Official
- Coordinates
- 18.399, -66.106
A person was trapped in a car in Aldebarran Street, near Ave. Martinez Nadal in Guaynabo.
- Heavy Rain
- Rainfall totals unusual for the place and season that did not produce a flood.
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Winter Weather in Washington, January 31, 20221 death · 1 event
- High Wind in North Dakota, January 31, 202264 kt wind · 36 events
- High Wind in Wyoming, January 31, 202274 kt wind · 12 events
- High Wind in Montana, January 31, 202261 kt wind · 10 events
- High Wind in Montana, January 31, 202258 kt wind · 9 events
- High Wind in Wyoming, January 31, 202276 kt wind · 7 events
- High Wind in South Dakota, January 31, 202263 kt wind · 6 events
- High Wind in Nebraska, January 31, 202256 kt wind · 5 events
- High Wind in Nevada, January 31, 202252 kt wind · 1 event
- High Wind in Wyoming, January 31, 202255 kt wind · 1 event
- Marine High Wind in Lake Superior, January 31, 20221 event
- High Wind in South Dakota, January 31, 202254 kt wind · 1 event
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 999065, 999057, 999058, 999059, 999062, 999063, 999064, 999060, 999061.