Heavy Rain, Androscoggin
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Androscoggin forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.166, -70.206 (the zone’s center; the record gives no point)
Heavy Rain in Maine, September 10 to 11, 1999
Heavy rains developed over the entire state as a southeast flow of tropical moisture developed ahead of an approaching cold front. Rainfall amounts generally ranged from 2 to 4 1/2 inches statewide with less than an inch in the downeast area.
Where it happened
Every event with a place to put it; 17 filed by county or forecast zone are drawn at its center, in a lighter ring. 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 17
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.
What happened
The episode as NWS GYX wrote it up.
Heavy rains developed over the entire state as a southeast flow of tropical moisture developed ahead of an approaching cold front. Rainfall amounts generally ranged from 2 to 4 1/2 inches statewide with less than an inch in the downeast area. Gorham reported the greatest rainfall amount with 5.9 inches. The heavy rains came as a relief to the many people who had been suffering through a drought that had plagued southern and western sections of the state since April.
The radar
The national radar mosaic for the moment the first event began.
Event by event
17 heavy rain. Local standard time, as filed.
Heavy Rain, Central Somerset
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Central Somerset forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 45.514, -69.959 (the zone’s center; the record gives no point)
Heavy Rain, Coastal Cumberland
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Coastal Cumberland forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.806, -70.330 (the zone’s center; the record gives no point)
Heavy Rain, Coastal Waldo
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Coastal Waldo forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.485, -69.122 (the zone’s center; the record gives no point)
Heavy Rain, Coastal York
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Coastal York forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.429, -70.670 (the zone’s center; the record gives no point)
Heavy Rain, Interior Cumberland
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Interior Cumberland forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.806, -70.330 (the zone’s center; the record gives no point)
Heavy Rain, Interior Waldo
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Interior Waldo forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.485, -69.122 (the zone’s center; the record gives no point)
Heavy Rain, Interior York
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Interior York forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.429, -70.670 (the zone’s center; the record gives no point)
Heavy Rain, Kennebec
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Kennebec forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.409, -69.767 (the zone’s center; the record gives no point)
Heavy Rain, Knox
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Knox forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.076, -69.126 (the zone’s center; the record gives no point)
Heavy Rain, Lincoln
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Lincoln forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.998, -69.526 (the zone’s center; the record gives no point)
Heavy Rain, Northern Franklin
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Northern Franklin forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.974, -70.444 (the zone’s center; the record gives no point)
Heavy Rain, Northern Oxford
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Northern Oxford forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.500, -70.757 (the zone’s center; the record gives no point)
Heavy Rain, Sagadahoc
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Sagadahoc forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.912, -69.839 (the zone’s center; the record gives no point)
Heavy Rain, Southern Franklin
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Southern Franklin forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.974, -70.444 (the zone’s center; the record gives no point)
Heavy Rain, Southern Oxford
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Southern Oxford forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.500, -70.757 (the zone’s center; the record gives no point)
Heavy Rain, Southern Somerset
- When
- September 10, 9:00 AM EST to September 11, 6:00 AM EST
- Where
- Southern Somerset forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 45.514, -69.959 (the zone’s center; the record gives no point)
What these are
- 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.
The same day elsewhere
- Tornado and Flood in Oklahoma, September 10, 1999
- Tornado and Hail in Oklahoma, September 10, 1999
- Heavy Rain in New Hampshire, September 10, 1999
- Flash Flooding and Heavy Rain in Massachusetts, September 10 to 11, 1999
- Hail in Kansas, September 10, 1999
- Flash Flood and Heavy Rain in Rhode Island, September 10, 1999
- Heavy Rain in Connecticut, September 10, 1999
- Waterspouts in Ohio, September 10 to 16, 1999
- Wildfire in Oregon, September 10 to 12, 1999
- High Wind in Alaska, September 10, 1999
- Wildfire in Wyoming, September 10 to 11, 1999
- Flood in New York, September 10, 1999
More
Every storm in Maine in 1999Every state in 1999This day in weather historyWarnings in Maine, September 1999
Sources
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 2026-09-24. Each event’s entry at NCEI: 5717454, 5717455, 5717456, 5717457, 5717458, 5717459, 5717460, 5717461, 5717462, 5717463, 5717565, 5717566, 5717567, 5717568, 5717569, 5717570, 5717571.