Maryland, 1999

Damaging Winds in Maryland, May 24, 1999

May 24, 1999 · NWS LWX · 4 events in 4 counties and zones

A line of thunderstorms moved across North Central Maryland during the early afternoon. These storms produced winds in excess of 55 MPH which felled hundreds of trees and knocked out power to 47,000 customers.

Where it happened

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

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The toll

Deaths
0
Injuries
0
Property damage
$60,000
Crop damage
None recorded
Events
4

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.

A line of thunderstorms moved across North Central Maryland during the early afternoon. These storms produced winds in excess of 55 MPH which felled hundreds of trees and knocked out power to 47,000 customers. The hardest hit counties were Montgomery, Howard, Harford and Southern Baltimore. One tree at the intersection of Holder and Echodale Avenue near Baltimore fell onto a minivan and totaled the vehicle. A second tree that fell onto Route 1 near Sandy Hook Road in Harford County nearly missed hitting a moving car. A third tree on Philadelphia Road in Aberdeen fell onto a truck and car. Heavy downpours that accompanied these storms led to minor flooding and lowered visibility, a contributing factor in two serious automobile accidents. One car on Interstate 495 near Greenbelt in Prince Georges County hydroplaned and overturned, killing the 19 year old driver. Another vehicle, an empty tractor trailer, lost traction on Interstate 95 near Halethorpe in Baltimore County and slid into a jersey barrier. The impact of the crash ruptured the gas tank and the vehicle caught on fire, seriously injuring the 50 year old driver.

The radar

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

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Event by event

4 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Montgomery

When
May 24, 1:00 PM EST
Where
Montgomery County, Countywide
Property damage
$10,000
Reported by
NEWSPAPER
Coordinates
39.130, -77.200

Several trees and power lines downed

Thunderstorm Wind, Baltimore City (C)

When
May 24, 1:15 PM EST
Where
Baltimore City (C) County, Countywide
Property damage
$20,000
Reported by
LAW ENFORCEMENT
Coordinates
39.300, -76.600

Several trees and power lines downed

Thunderstorm Wind, Howard

When
May 24, 1:15 PM EST
Where
Howard County, Countywide
Property damage
$10,000
Reported by
NEWSPAPER
Coordinates
39.270, -76.920

Several trees and power lines downed

Thunderstorm Wind, Harford

When
May 24, 1:45 PM EST
Where
Harford County, Countywide
Property damage
$20,000
Reported by
LAW ENFORCEMENT
Coordinates
39.580, -76.300

Several trees and power lines downed

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.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Maryland in 1999Every state in 1999This day in weather historyWarnings in Maryland, May 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: 5697108, 5697105, 5697107, 5697106.