Heavy Rain, Sussex
- When
- January 3, 4:00 AM EST to 12:00 PM EST
- Where
- Sussex County, Countywide
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 38.683, -75.339 (the zone’s center; the record gives no point)
Heavy Rain in Delaware, January 3, 1999
On the evening of the 2nd, as one low pressure system headed into the Great Lakes, a second low pressure system formed along its frontal boundary along the coastal plains of the South Atlantic States. Not only did this second low pressure system increase the pressure gradient (or surface pressure difference between it and a strong high pressure system over the Canadian Maritimes), but it also…
Where it happened
Every event with a place to put it; 3 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
- 3
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 PHI wrote it up.
On the evening of the 2nd, as one low pressure system headed into the Great Lakes, a second low pressure system formed along its frontal boundary along the coastal plains of the South Atlantic States. Not only did this second low pressure system increase the pressure gradient (or surface pressure difference between it and a strong high pressure system over the Canadian Maritimes), but it also brought heavy rain into the region. Heavy rain fell for most of the morning of the 3rd. Storm totals for the entire event included 2.82 inches in Milford (Kent County), 2.70 inches at Dover AFB, 2.68 inches in Greenwood (Sussex County), 1.89 inches in Wilmington (New Castle County), 1.60 inches in Newark (New Castle County) and 1.49 inches at the New Castle County Airport. The usual poor drainage flooding occurred, but no other serious flooding was reported.
The radar
The national radar mosaic for the moment the first event began.
Event by event
3 heavy rain. Local standard time, as filed.
Heavy Rain, Kent
- When
- January 3, 5:30 AM EST to 12:00 PM EST
- Where
- Kent County, Countywide
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 39.096, -75.505 (the zone’s center; the record gives no point)
Heavy Rain, New Castle
- When
- January 3, 7:00 AM EST to 12:00 PM EST
- Where
- New Castle County, Countywide
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 39.578, -75.639 (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
- Wildfire and Rip Current in California, January 3, 1999
- Flash Flooding and Flooding in New York, January 3, 1999
- Damaging Winds in Florida, January 3, 1999
- Damaging Wind in Florida, January 3, 1999
- Damaging Wind in Florida, January 3, 1999
- Winter Storm in Vermont, January 3, 1999
- Flash Flooding and Heavy Rain in New Jersey, January 3, 1999
- Winter Storm and Winter Weather in Maine, January 3, 1999
- Damaging Wind in Florida, January 3, 1999
- Damaging Wind in Virginia, January 3, 1999
- High Wind and Winter Weather in Massachusetts, January 3, 1999
- Heavy Snow and Winter Weather in Michigan, January 3, 1999
More
Every storm in Delaware in 1999Every state in 1999This day in weather historyWarnings in Delaware, January 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: 5684524, 5684522, 5684523.