Alert archive / Maryland / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 407, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Aug 21, 2011, 4:48 PM EDT for Anne Arundel County, Calvert County, Prince George's County, Maryland. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 21, 2011, 4:48 PM EDT (20:48 UTC)
- Expired
- Aug 21, 2011, 5:15 PM EDT
- In force
- 27 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
Counties Anne Arundel County, MD, Calvert County, MD, Prince George's County, MD
The radar
The Sterling radar (KLWX), 76 km from the middle of the area, began a volume at 20:48 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 21, 12:52 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 4:42 AM EDT | Small Craft Advisory | LWX | 44 hr | |
| Aug 21, 7:48 AM EDT | Special Marine Warning | LWX | 87 min | |
| Aug 21, 11:10 AM EDT | Flash Flood Watch | LWX | Arlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church | 7 hr |
| Aug 21, 12:05 PM EDT | Severe Thunderstorm Warning | LWX | Augusta, Highland | 25 min |
| Aug 21, 12:18 PM EDT | Special Weather Statement | LWX | Shenandoah | 27 min |
| Aug 21, 12:32 PM EDT | Special Weather Statement | LWX | Augusta | 28 min |
| Aug 21, 12:33 PM EDT | Special Weather Statement | LWX | Clarke, Loudoun | 27 min |
| Aug 21, 12:44 PM EDT | Special Weather Statement | LWX | Page | 31 min |
| Aug 21, 12:54 PM EDT | Special Weather Statement | LWX | Page | 36 min |
| Aug 21, 1:00 PM EDT | Special Weather Statement | LWX | Loudoun | 30 min |
| Aug 21, 1:09 PM EDT | Special Marine Warning | LWX | 96 min | |
| Aug 21, 1:12 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Loudoun, Prince William | 48 min |
| Aug 21, 1:19 PM EDT | Special Weather Statement | LWX | Fauquier | 26 min |
| Aug 21, 1:24 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Loudoun, Prince William | 51 min |
| Aug 21, 1:25 PM EDT | Special Weather Statement | LWX | Page, Rappahannock | 35 min |
| Aug 21, 1:40 PM EDT | Severe Thunderstorm Warning | LWX | Clarke, Loudoun | 50 min |
| Aug 21, 1:50 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Fauquier, Loudoun, Prince William | 40 min |
| Aug 21, 1:58 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Fauquier, Prince William, City of Manassas | 47 min |
| Aug 21, 2:05 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Fauquier, Madison, Prince William, Rappahannock, City of Manassas and 1 more | 40 min |
| Aug 21, 2:13 PM EDT | Special Marine Warning | LWX | 92 min | |
| Aug 21, 2:17 PM EDT | Special Marine Warning | LWX | 118 min | |
| Aug 21, 2:25 PM EDT | Special Weather Statement | LWX | Arlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church | 35 min |
| Aug 21, 2:27 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Aug 21, 2:28 PM EDT | Special Weather Statement | LWX | Albemarle, City of Charlottesville | 32 min |
| Aug 21, 2:46 PM EDT | Special Marine Warning | LWX | 89 min | |
| Aug 21, 2:50 PM EDT | Severe Thunderstorm Warning | LWX | Albemarle, City of Charlottesville | 21 min |
| Aug 21, 3:01 PM EDT | Special Weather Statement | LWX | Orange, Prince William, Spotsylvania, Stafford, City of Alexandria, City of Fredericksburg and 2 more | 29 min |
| Aug 21, 3:02 PM EDT | Special Weather Statement | LWX | Arlington, City of Alexandria, City of Falls Church | 28 min |
| Aug 21, 3:11 PM EDT | Severe Thunderstorm Warning | LWX | Arlington | 49 min |
| Aug 21, 3:12 PM EDT | Severe Thunderstorm Warning | LWX | Arlington | 48 min |
| Aug 21, 3:38 PM EDT | Special Marine Warning | LWX | 97 min | |
| Aug 21, 4:02 PM EDT | Special Weather Statement | LWX | King George, Spotsylvania, City of Fredericksburg | 28 min |
| Aug 21, 4:11 PM EDT | Special Marine Warning | LWX | 94 min | |
| Aug 21, 4:19 PM EDT | Special Marine Warning | LWX | 86 min | |
| Aug 21, 4:23 PM EDT | Special Marine Warning | LWX | 97 min | |
| Aug 21, 5:39 PM EDT | Special Marine Warning | LWX | 96 min | |
| Aug 21, 7:31 PM EDT | Special Marine Warning | LWX | 33 min | |
| Aug 21, 7:53 PM EDT | Special Weather Statement | LWX | Albemarle, Arlington, Clarke, Culpeper, Fairfax, Fauquier and 21 more | 7 min |
| Aug 21, 7:54 AM EDT | Special Weather Statement | LWX | Harford | 36 min |
| Aug 21, 8:04 AM EDT | Special Weather Statement | LWX | Harford | 26 min |
| Aug 21, 8:32 AM EDT | Special Weather Statement | LWX | Harford | 28 min |
| Aug 21, 1:11 PM EDT | Special Weather Statement | LWX | Baltimore, City of Baltimore | 34 min |
| Aug 21, 1:14 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 46 min |
| Aug 21, 1:20 PM EDT | Special Weather Statement | LWX | Howard | 25 min |
| Aug 21, 1:28 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's | 47 min |
| Aug 21, 1:29 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 46 min |
| Aug 21, 1:39 PM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 3 hr |
| Aug 21, 1:54 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Harford, City of Baltimore | 51 min |
| Aug 21, 2:01 PM EDT | Tornado Warning | LWX | Anne Arundel | 29 min |
| Aug 21, 2:19 PM EDT | Tornado Warning | LWX | Baltimore | 26 min |
| Aug 21, 2:23 PM EDT | Special Weather Statement | LWX | Howard | 37 min |
| Aug 21, 2:39 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 36 min |
| Aug 21, 2:51 PM EDT | Special Weather Statement | LWX | City of Baltimore | 24 min |
| Aug 21, 3:35 PM EDT | Special Weather Statement | LWX | Anne Arundel | 25 min |
| Aug 21, 4:06 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 39 min |
| Aug 21, 4:38 PM EDT | Special Weather Statement | LWX | Calvert | 37 min |
| Aug 21, 12:59 PM EDT | Special Weather Statement | LWX | Jefferson | 31 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2011Every severe thunderstorm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.