Alert archive / Maryland / Tornado Warnings in 2021
Tornado Warning 40, NWS Baltimore/Washington
NWS Baltimore/Washington issued this tornado warning at Sep 1, 2021, 1:56 PM EDT for Anne Arundel County, Prince George's County, Maryland. It was in force for 34 min. 1 report 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
- Sep 1, 2021, 1:56 PM EDT (17:56 UTC)
- Expired
- Sep 1, 2021, 2:30 PM EDT
- In force
- 34 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Anne Arundel County, MD, Prince George's County, MD
The radar
The Sterling radar (KLWX), 83 km from the middle of the area, began a volume at 17:59 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 |
|---|---|---|---|
| Sep 1, 2:00 PM EDT | TORNADO | 3 W Galesville, MD | EF-2 WITH ESTIMATED PEAK WINDS OF 125 MPH PATH LENGTH: 11.25 MILES MAX WIDTH: 200 YARDS |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 1, 11:46 AM EDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 5.9 hours before the alert went out and 75 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
- 558 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 575 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 223 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.6
The text
As transmitted.
927
WFUS51 KLWX 011756
TORLWX
MDC003-033-011830-
/O.NEW.KLWX.TO.W.0040.210901T1756Z-210901T1830Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Baltimore MD/Washington DC
156 PM EDT Wed Sep 1 2021
The National Weather Service in Sterling Virginia has issued a
* Tornado Warning for...
Central Anne Arundel County in central Maryland...
East central Prince Georges County in central Maryland...
* Until 230 PM EDT.
* At 156 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Upper Marlboro, moving northeast at 35 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...
Annapolis, Mayo, Naval Academy, Severn River, South River, Rhode
River, Severna Park, Arnold, Parole, Londontowne, Edgewater, Riva,
Herald Harbor, Crownsville, Galesville, Highland Beach, Lothian,
Davidsonville, Navy-Marine Corps Stadium and Eastport.
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 or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 3896 7645 3891 7646 3877 7663 3880 7672
3911 7661 3899 7640
TIME...MOT...LOC 1756Z 210DEG 32KT 3883 7665
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
LEE2 follow-up statements
119
WWUS51 KLWX 011810
SVSLWX
Severe Weather Statement
National Weather Service Baltimore MD/Washington DC
210 PM EDT Wed Sep 1 2021
MDC033-011820-
/O.CAN.KLWX.TO.W.0040.000000T0000Z-210901T1830Z/
Prince Georges MD-
210 PM EDT Wed Sep 1 2021
...THE TORNADO WARNING FOR EAST CENTRAL PRINCE GEORGES COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 700 PM EDT for central
Maryland.
LAT...LON 3896 7645 3891 7646 3886 7657 3890 7665
3909 7659 3899 7640
TIME...MOT...LOC 1810Z 210DEG 32KT 3894 7657
$$
MDC003-011830-
/O.CON.KLWX.TO.W.0040.000000T0000Z-210901T1830Z/
Anne Arundel MD-
210 PM EDT Wed Sep 1 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM EDT FOR CENTRAL
ANNE ARUNDEL COUNTY...
At 210 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Londontowne, or near Mayo, moving northeast at 35
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...
Annapolis, Mayo, Naval Academy, Severn River, South River, Severna
Park, Arnold, Parole, Londontowne, Edgewater, Riva, Herald Harbor,
Crownsville, Highland Beach, Hillsmere Shores, Sherwood Forest,
Davidsonville, Navy-Marine Corps Stadium, Eastport and Bay Ridge.
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 or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 3896 7645 3891 7646 3886 7657 3890 7665
3909 7659 3899 7640
TIME...MOT...LOC 1810Z 210DEG 32KT 3894 7657
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
LEE318
WWUS51 KLWX 011815
SVSLWX
Severe Weather Statement
National Weather Service Baltimore MD/Washington DC
215 PM EDT Wed Sep 1 2021
MDC003-011830-
/O.CON.KLWX.TO.W.0040.000000T0000Z-210901T1830Z/
Anne Arundel MD-
215 PM EDT Wed Sep 1 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM EDT FOR EAST
CENTRAL ANNE ARUNDEL COUNTY...
At 214 PM EDT, a confirmed tornado was located over Londowntowne, or
over Annapolis, moving northeast at 35 mph.
HAZARD...Damaging tornado.
SOURCE...Radar confirmed tornado.
IMPACT...For those in the direct path of a tornado touchdown, flying
debris will be dangerous to those caught without shelter.
Damage to roofs, siding, and windows may occur. Mobile
homes may be damaged or destroyed. Tree damage is likely.
This tornado will be near...
Parole at 215 PM EDT.
Severn River around 220 PM EDT.
Arnold around 230 PM EDT.
Other locations impacted by this tornadic thunderstorm include
Sherwood Forest, Riva, Edgewater, Navy-Marine Corps Stadium,
Eastport, Edgewater Beach, Crownsville and Herald Harbor.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.
&&
LAT...LON 3897 7647 3893 7651 3890 7655 3893 7661
3905 7658 3901 7645
TIME...MOT...LOC 1814Z 210DEG 32KT 3897 7655
TORNADO...OBSERVED
MAX HAIL SIZE...0.00 IN
$$
LEEThe office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 9:06 PM EDT | Coastal Flood Watch | LWX | Anne Arundel | 22 hr |
| Aug 31, 9:36 PM EDT | River Flood Warning | LWX | Washington | 68 hr |
| Aug 31, 9:44 PM EDT | River Flood Watch | LWX | Frederick | 25 hr |
| Aug 31, 9:44 PM EDT | River Flood Watch | LWX | Montgomery | 48 hr |
| Aug 31, 9:44 PM EDT | River Flood Watch | LWX | Washington | 25 hr |
| Aug 31, 9:44 PM EDT | River Flood Watch | LWX | Montgomery | 25 hr |
| Sep 1, 3:23 AM EDT | Areal Flood Warning | LWX | Montgomery | 8 hr |
| Sep 1, 3:24 AM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 51 min |
| Sep 1, 3:50 AM EDT | Areal Flood Warning | LWX | Montgomery, Prince George's | 6 hr |
| Sep 1, 4:00 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 60 min |
| Sep 1, 4:10 AM EDT | Areal Flood Warning | LWX | Anne Arundel, Baltimore, Howard, City of Baltimore | 6 hr |
| Sep 1, 4:34 AM EDT | Areal Flood Warning | LWX | Montgomery | 6 hr |
| Sep 1, 4:39 AM EDT | Areal Flood Warning | LWX | Anne Arundel, Baltimore, Howard, City of Baltimore | 5 hr |
| Sep 1, 4:50 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 40 min |
| Sep 1, 5:41 AM EDT | Areal Flood Warning | LWX | Cecil, Harford | 5 hr |
| Sep 1, 6:15 AM EDT | Areal Flood Warning | LWX | Cecil | 5 hr |
| Sep 1, 8:39 AM EDT | Flash Flood Warning | LWX | Allegany, Garrett | 5 hr |
| Sep 1, 10:14 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Cecil, Harford, Saint Mary's and 1 more | 19 hr |
| Sep 1, 12:52 PM EDT | Areal Flood Warning | LWX | Allegany | 22 hr |
| Sep 1, 1:11 PM EDT | Tornado Warning | LWX | Charles, Prince George's | 34 min |
| Sep 1, 1:23 PM EDT | Tornado Warning | LWX | Charles | 17 min |
| Sep 1, 1:30 PM EDT | Areal Flood Warning | LWX | Carroll, Frederick, Washington | 27 hr |
| Sep 1, 1:31 PM EDT | Tornado Warning | LWX | Charles, Saint Mary's | 29 min |
| Sep 1, 1:46 PM EDT | Areal Flood Warning | LWX | Allegany, Garrett | 16 hr |
| Sep 1, 2:12 PM EDT | Tornado Warning | LWX | Baltimore | 33 min |
| Sep 1, 2:23 PM EDT | Tornado Warning | LWX | Baltimore | 15 min |
| Sep 1, 2:26 PM EDT | Flash Flood Warning | LWX | Carroll, Frederick | 6 hr |
| Sep 1, 2:26 PM EDT | Tornado Warning | LWX | Baltimore, Harford | 14 min |
| Sep 1, 2:27 PM EDT | Tornado Warning | LWX | Anne Arundel | 15 min |
| Sep 1, 2:48 PM EDT | Tornado Warning | LWX | Baltimore, Harford | 27 min |
| Sep 1, 3:10 PM EDT | Tornado Warning | LWX | Baltimore | 16 min |
| Sep 1, 3:17 PM EDT | Tornado Warning | LWX | Harford | 28 min |
| Sep 1, 3:25 PM EDT | Flash Flood Warning | LWX | Carroll, Frederick | 5 hr |
| Sep 1, 3:34 PM EDT | Flash Flood Warning | LWX | Cecil, Harford | 3 hr |
| Sep 1, 3:36 PM EDT | Wind Advisory | LWX | Allegany, Carroll, Frederick, Washington | 7 hr |
| Sep 1, 3:49 PM EDT | Tornado Warning | LWX | Cecil, Harford | 26 min |
| Sep 1, 4:13 PM EDT | River Flood Watch | LWX | Cecil | 7 hr |
| Sep 1, 4:13 PM EDT | River Flood Warning | LWX | Allegany | 7 hr |
| Sep 1, 4:14 PM EDT | River Flood Warning | LWX | Allegany | 9 hr |
| Sep 1, 4:37 PM EDT | Areal Flood Warning | LWX | Baltimore, Carroll, Harford | 13 hr |
| Sep 1, 5:46 PM EDT | Tornado Warning | LWX | Cecil | 29 min |
| Sep 1, 6:08 PM EDT | Areal Flood Warning | LWX | Cecil, Harford | 17 hr |
| Sep 1, 6:12 PM EDT | Tornado Warning | LWX | Cecil | 19 min |
| Sep 1, 7:03 PM EDT | Coastal Flood Warning | LWX | Anne Arundel | 8 hr |
| Sep 1, 7:27 PM EDT | Areal Flood Warning | LWX | Allegany, Washington | 15 hr |
| Sep 1, 7:59 PM EDT | Areal Flood Warning | LWX | Carroll, Frederick | 2 hr |
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.