Maryland, 2000

Heavy Rain in Maryland, September 1, 2000

September 1, 2000 · NWS LWX · 2 events in 2 counties and zones

During the early morning hours of the 1st, isolated thunderstorms dropped heavy rainfall across eastern Frederick and western Montgomery Counties. 87 inches fell in Damascus.

Where it happened

Every event with a place to put it; 2 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

Open the live radar over this ground

The toll

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.

What happened

The episode as NWS LWX wrote it up.

During the early morning hours of the 1st, isolated thunderstorms dropped heavy rainfall across eastern Frederick and western Montgomery Counties. A total of 2.10 inches was reported in Germantown and 1.87 inches fell in Damascus. Two separate observers in Frederick reported rainfall totals of 2.67 inches and 1.65 inches respectively.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

2 heavy rain. Local standard time, as filed.

Heavy Rain, Montgomery

When
September 1, 3:00 AM EST to 5:00 AM EST
Where
Montgomery County, Countywide
Reported by
TRAINED SPOTTER
Coordinates
39.136, -77.204 (the zone’s center; the record gives no point)

Heavy Rain, Frederick

When
September 1, 3:00 AM EST to 5:00 AM EST
Where
Frederick County, Countywide
Reported by
TRAINED SPOTTER
Coordinates
39.472, -77.398 (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

More

Every storm in Maryland in 2000Every state in 2000This day in weather historyWarnings in Maryland, September 2000

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: 5156307, 5156308.