Hail, Frederick
- When
- September 18, 3:00 PM CST
- Where
- Frederick County
- Measured
- 1.75 in hail
- Coordinates
- 39.380, -77.250
Hail and Damaging Winds in Maryland, September 18, 1991
3 hail, 2 thunderstorm wind, as filed by the National Weather Service.
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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 5
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.
Event by event
3 hail, 2 thunderstorm wind. Local standard time, as filed.
Hail, Carroll
- When
- September 18, 3:25 PM CST
- Where
- Carroll County
- Measured
- 0.88 in hail
- Coordinates
- 39.380, -77.150
Thunderstorm Wind, Carroll
- When
- September 18, 4:15 PM CST
- Where
- Carroll County
- Coordinates
- 39.400, -76.950
Hail, Washington
- When
- September 18, 4:26 PM CST
- Where
- Washington County
- Measured
- 0.75 in hail
- Coordinates
- 39.500, -77.750
Thunderstorm Wind, Carroll
- When
- September 18, 5:30 PM CST
- Where
- Carroll County
- Coordinates
- 39.600, -77.020
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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
- Tornadoes and Hail in Pennsylvania, September 18, 1991
- Hail and Damaging Winds in West Virginia, September 18, 1991
- Damaging Wind in Tennessee, September 18, 1991
- Damaging Wind in Florida, September 18, 1991
- Damaging Wind in Kentucky, September 18, 1991
- Damaging Wind in Ohio, September 18, 1991
- Damaging Wind in Mississippi, September 18, 1991
More
Every storm in Maryland in 1991Every state in 1991This day in weather historyWarnings in Maryland, September 1991
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: 10038107, 10038108, 10038109, 10038110, 10038111.