On the map: every storm report logged this day.
On the map
Storm reports for December 21, 2018
On December 21, 2018, 1 hail, 11 damaging-wind and 0 tornado reports were logged across 2 states.
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← Dec 20, 2018 All 2018 storm days · December 2018 Dec 24, 2018 →
On December 21, 2018, 1 hail, 11 damaging-wind and 0 tornado reports were logged across 2 states. The largest hail reported was 1.00″ (quarter size) in Carroll County, MD.
Storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Radar hail estimates start October 2019.
Storm reports by state
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| MD | 1 | 8 | 0 | 1.00″ |
| VA | 0 | 3 | 0 | – |
Hail reports (1)
| Time (UTC) | Size | Location |
|---|---|---|
| 21:48 | 1.00″ | Carroll County, MD |
Damage, injuries and deaths
National Weather Service offices recorded 12 hail, wind or tornado events across the US on this storm day, with no damage estimate, injury or death entered. Injuries and deaths are those the events caused directly.
What the National Weather Service wrote
- Montgomery County, MD (near Gaithersburg) · Thunderstorm wind 58 mph
“A tree was blown down blocking the right lane and shoulder of southbound I-270 near Exit 10 for westbound MD-117.” - Frederick County, MD (near Urbana) · Thunderstorm wind 58 mph
“A tree was blown down on I-270 near Exit 26 for MD-80 Fingerboard Road.” - Frederick County, MD (near Plane Number Four) · Thunderstorm wind 58 mph
“A tree was blown down near the intersection of Bill Moxley Road and Autumn Crest Drive.” - Carroll County, MD (near Watersville) · Thunderstorm wind 58 mph
“A tree was blown down near the intersection of Gillis Falls Road and Davis Road.” - Carroll County, MD (near Sams Creek) · Thunderstorm wind 58 mph
“A tree was blown down in the 3500 block of Sams Creek Road.” - Loudoun County, VA (near Sterling) · Thunderstorm wind 58 mph
“A tree was blown down near the intersection of Prentice Drive and Broderick Drive.”
Event narratives from NWS Storm Data, shortened. Up to six per day, chosen by deaths, injuries, damage and size.
Source: NOAA National Centers for Environmental Information (NCEI), Storm Events Database, as entered by National Weather Service offices; data through July 31, 2026. Damage is in dollars of the year, not adjusted for inflation.
Guides: What radar-estimated hail (MESH) is and isn't · Storm reports: preliminary vs final
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