Maryland, 2000

Flash Flood and Damaging Winds in Maryland, June 26, 2000

June 26, 2000 · NWS LWX · 6 events in 4 counties and zones

Thunderstorms developed across the area on the afternoon of the 26th. The strongest storms produced winds in excess of 55 MPH, frequent lightning, and heavy rainfall.

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

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The toll

Deaths
0
Injuries
0
Property damage
$19,000
Crop damage
None recorded
Events
6

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.

Thunderstorms developed across the area on the afternoon of the 26th. The strongest storms produced winds in excess of 55 MPH, frequent lightning, and heavy rainfall. In Frederick County, lightning downed trees and power lines in Emmitsburg, New Market and Ijamsville. A home was struck by lightning in New Midway and Middletown and a garage fire was started by lightning in Woodsboro. Pea sized hail was reported in Mar-Lu-Ridge. In Montgomery County, high winds downed trees onto Frederick Road. In addition, flooding was reported on Route 355 at the intersection of Frederick Road. In Howard County, trees were downed near Brighton Dam and on Highland Road. Savage Park reported a total of 1.39 inches of rain. In Calvert County, tree limbs were downed in Prince Frederick and a radio tower in Island Creek was damaged by lightning.

The radar

The Sterling radar (KLWX), 30 km away, was scanning. The volume nearest the first event began at 20:17 UTC.

Open the radar archive at this moment

Event by event

3 thunderstorm wind, 2 lightning, 1 flash flood. Local standard time, as filed.

Thunderstorm Wind, Montgomery

When
June 26, 3:15 PM EST
Where
Montgomery County, Countywide
Property damage
$2,000
Reported by
NEWSPAPER
Coordinates
39.133, -77.200

Trees were downed onto Frederick Road.

Flash Flood, Montgomery

When
June 26, 3:50 PM EST to 4:30 PM EST
Where
Montgomery County, North Portion
Reported by
EMERGENCY MANAGER
Coordinates
39.136, -77.204 (the zone’s center; the record gives no point)

Route 355 was flooded at the intersection of Frederick Road.

Thunderstorm Wind, Calvert

When
June 26, 5:02 PM EST
Where
Calvert County, Prince Frederick
Property damage
$1,000
Reported by
EMERGENCY MANAGER
Coordinates
38.533, -76.550

Tree limbs were downed.

Lightning, Calvert

When
June 26, 5:15 PM EST
Where
Calvert County, Island Creek
Property damage
$5,000
Reported by
EMERGENCY MANAGER
Coordinates
38.535, -76.531 (the zone’s center; the record gives no point)

A radio tower was damaged by lightning.

Thunderstorm Wind, Howard

When
June 26, 6:52 PM EST
Where
Howard County, Clarksville
Property damage
$500
Reported by
AMATEUR RADIO
Coordinates
39.200, -76.883

Trees were downed near Brighton Dam and on Highland Road.

Lightning, Frederick

When
June 26, 9:00 PM EST
Where
Frederick County, Countywide
Property damage
$10,000
Reported by
EMERGENCY MANAGER
Coordinates
39.472, -77.398 (the zone’s center; the record gives no point)

Lightning downed trees and power lines in Emmitsburg, New Market, and Ijamsville.

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
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.
Lightning
A lightning strike that killed, injured or caused damage.

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, June 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: 5154489, 5154490, 5154795, 5154796, 5154797, 5153242.