Alert archive / Maryland / Tornado Warnings in 2021
Tornado Warning 7, NWS Baltimore/Washington
NWS Baltimore/Washington issued this tornado warning at May 3, 2021, 8:31 PM EDT for Carroll County, Maryland. It was in force for 29 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 3, 2021, 8:31 PM EDT (00:31 UTC)
- Expired
- May 3, 2021, 9:00 PM EDT
- In force
- 29 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
County Carroll County, MD
The radar
The Sterling radar (KLWX), 68 km from the middle of the area, began a volume at 00:32 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 3, 8:47 PM EDT | TORNADO | 1 Ene Marston, MD | EF0 TORNADO. 0.2MI PATH LENGTH. 75 YARDS PATH WIDTH. PEAK WIND 80MPH. |
| May 3, 8:50 PM EDT | TSTM WND DMG | Westminster, MD | TWO SMALL FARM SHEDS DESTROYED AND MOVED ACROSS A FIELD. CALF INJURED FROM DEBRIS. |
| May 3, 8:58 PM EDT | TSTM WND DMG | Westminster, MD | TREES DOWN ALONG RT 27 AND SPRING MILLS RD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 0.5 hours before the alert went out and 68 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 528 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 824 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 219 m²/s²
- 0-3 km storm-relative helicity
- 297 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 2.4
The text
As transmitted.
179
WFUS51 KLWX 040031
TORLWX
MDC013-040100-
/O.NEW.KLWX.TO.W.0007.210504T0031Z-210504T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Baltimore MD/Washington DC
831 PM EDT Mon May 3 2021
The National Weather Service in Sterling Virginia has issued a
* Tornado Warning for...
Central Carroll County in north central Maryland...
* Until 900 PM EDT.
* At 831 PM EDT, a severe thunderstorm capable of producing a tornado
was located 7 miles north of Mount Airy, or 10 miles southwest of
Westminster, moving northeast at 20 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...For those in the direct path of a tornado touchdown,
flying debris will be dangerous to those caught without
shelter. Damage to roofs, siding, and windows may occur.
Mobile homes may be damaged or destroyed. Tree damage is
likely.
* Locations impacted include...
Westminster, New Windsor, Wagners Mill and Marston.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3948 7696 3945 7712 3948 7712 3950 7711
3951 7713 3952 7714 3952 7715 3953 7715
3953 7716 3960 7702
TIME...MOT...LOC 0031Z 246DEG 17KT 3949 7716
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
ADS1 follow-up statement
812
WWUS51 KLWX 040051
SVSLWX
Severe Weather Statement
National Weather Service Baltimore MD/Washington DC
851 PM EDT Mon May 3 2021
MDC013-040100-
/O.CON.KLWX.TO.W.0007.000000T0000Z-210504T0100Z/
Carroll MD-
851 PM EDT Mon May 3 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR CENTRAL
CARROLL COUNTY...
At 851 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Westminster, moving northeast at 20 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...For those in the direct path of a tornado touchdown, flying
debris will be dangerous to those caught without shelter.
Damage to roofs, siding, and windows may occur. Mobile
homes may be damaged or destroyed. Tree damage is likely.
Locations impacted include...
Westminster, New Windsor, Wagners Mill and Marston.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3948 7696 3947 7709 3953 7713 3954 7712
3960 7702
TIME...MOT...LOC 0051Z 246DEG 17KT 3953 7705
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
ADSThe office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 8:11 PM EDT | Tornado Warning | LWX | Frederick | 34 min |
| May 3, 8:47 PM EDT | Areal Flood Warning | LWX | Frederick | 3 hr |
| May 3, 8:49 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 26 min |
| May 3, 8:56 PM EDT | Tornado Warning | LWX | Carroll | 34 min |
| May 3, 9:22 PM EDT | Tornado Warning | LWX | Baltimore | 24 min |
| May 4, 12:12 PM EDT | Severe Thunderstorm Warning | LWX | Garrett | 48 min |
| May 4, 4:55 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Montgomery, Prince George's | 50 min |
| May 4, 5:27 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 33 min |
| May 4, 5:49 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 56 min |
Nearby
Tornado Warnings in Maryland, 2021Every tornado warning in 2021Tornadoes in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.