Alert archive / Maryland / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 231, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Aug 18, 2017, 5:59 PM EDT for 4 counties in Maryland. It was in force for 46 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 18, 2017, 5:59 PM EDT (21:59 UTC)
- Expired
- Aug 18, 2017, 6:45 PM EDT
- In force
- 46 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Calvert County, MD, Charles County, MD, Prince George's County, MD, Saint Mary's County, MD
The radar
The Sterling radar (KLWX), 83 km from the middle of the area, began a volume at 22:00 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 18, 2:27 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 3:42 AM EDT | Heat Advisory | LWX | Arlington, Fairfax, King George, Spotsylvania, Stafford, City of Alexandria and 3 more | 15 hr |
| Aug 18, 5:45 AM EDT | Small Craft Advisory | LWX | 27 hr | |
| Aug 18, 8:42 AM EDT | Special Marine Warning | LWX | 93 min | |
| Aug 18, 12:35 PM EDT | Flash Flood Watch | LWX | Arlington, Culpeper, Fairfax, Fauquier, King George, Loudoun and 9 more | 8 hr |
| Aug 18, 4:36 PM EDT | Special Marine Warning | LWX | 114 min | |
| Aug 18, 4:39 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Aug 18, 5:12 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Aug 18, 5:17 PM EDT | Special Marine Warning | LWX | 118 min | |
| Aug 18, 5:38 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Aug 18, 5:55 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Aug 18, 6:34 PM EDT | Flash Flood Warning | LWX | Arlington, Fairfax | 3 hr |
| Aug 18, 6:38 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Aug 18, 6:42 PM EDT | Severe Thunderstorm Warning | LWX | King George | 63 min |
| Aug 18, 7:40 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Aug 18, 7:54 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Aug 18, 7:59 PM EDT | Special Marine Warning | LWX | 91 min | |
| Aug 18, 10:58 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Saint Mary's | 19 hr |
| Aug 18, 4:35 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 55 min |
| Aug 18, 5:07 PM EDT | Flash Flood Warning | LWX | Baltimore, Howard, City of Baltimore | 3 hr |
| Aug 18, 5:10 PM EDT | Flash Flood Warning | LWX | Harford | 4 hr |
| Aug 18, 5:14 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Harford, Howard, City of Baltimore | 91 min |
| Aug 18, 5:29 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 46 min |
| Aug 18, 5:32 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 73 min |
| Aug 18, 7:14 PM EDT | Flash Flood Warning | LWX | Harford | 3 hr |
| Aug 18, 7:36 PM EDT | Flash Flood Warning | LWX | Calvert, Charles, Saint Mary's | 4 hr |
| Aug 18, 7:51 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 84 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2017Every severe thunderstorm warning in 2017
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.