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
- 2
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.
Surface trough moving across the area in combination with upper level low and associated trough north of Puerto Rico, produced numerous showers and isolated thunderstorms across the U.S. Virgin Islands. The heavy rains Monday caused flooding problems across St. Thomas and St. John. Saint Thomas Airport rain sensor recorded 1.92 inches for the 24 hour period ending at midnight.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Juan, PR wrote its last area forecast discussion before the first event at May 4, 4:53 AM AST, 2 hours 30 minutes earlier.
Area forecast discussion, May 4, 4:53 AM AST, 2 hours 30 minutes before
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</html>Hazardous weather outlook, May 4, 6:06 AM AST, 1 hour 17 minutes before
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</html>Heavy Rain, St. John
- When
- May 4, 7:23 AM AST to 4:00 PM AST
- Where
- St. John County, St John
- Reported by
- Newspaper
- Coordinates
- 18.330, -64.730
The bridge across the road near the Westin Resort and Villas on St. John was closed. Localized flooding was also reported near the Marketplace shopping center and in Cruz Bay. There were also rock slides on Bordeaux Mountain.
Heavy Rain, St. Thomas
- When
- May 4, 7:23 AM AST to 4:00 PM AST
- Where
- St. Thomas County, St Thomas
- Reported by
- Newspaper
- Coordinates
- 18.350, -64.930
Mandela Circle in the Havensight area of St. Thomas was reported flooded. The area around Mandela Circle also flooded Monday afternoon. Vitraco Mall area was reported flooded.
- Heavy Rain
- Rainfall totals unusual for the place and season that did not produce a flood.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Flooding and Heavy Rain in West Virginia, May 4 to 5, 20091 death · 1 injured · $464,000 · 12 events
- Flood in Alaska, May 4 to 7, 2009$6.3 million · 1 event
- Flooding in Arkansas, May 4 to 31, 2009$4.5 million · 7 events
- Tornado in Louisiana, May 4, 20093 injured · $75,000 · EF1 · 1 event
- Flooding in West Virginia, May 4 to 5, 2009$200,000 · 4 events
- Flooding in Pennsylvania, May 4 to 5, 2009$160,000 · 2 events
- Flooding in Illinois, May 4 to 28, 2009$120,000 · 5 events
- Tornado and Hail in Virginia, May 4, 20091 injured · $33,000 · EF0 · 15 events
- Flood in Arkansas, May 4 to 12, 2009$50,000 · 1 event
- Hail and Damaging Winds in South Carolina, May 4, 2009$28,000 · 1 in hail · 6 events
- Tornado in Mississippi, May 4, 2009$8,000 · EF1 · 1 event
- Tornado and Damaging Winds in South Carolina, May 4, 2009$22,000 · EF0 · 6 events
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: 158746, 158747.