Alert archive / Maryland / Flash Flood Warnings in 2020

Flash Flood Warning 35, NWS Baltimore/Washington

August 7, 2020Baltimore County, Harford County, Maryland

NWS Baltimore/Washington issued this flash flood warning at Aug 7, 2020, 7:41 PM EDT for Baltimore County, Harford County, Maryland. It was in force for 104 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 7, 2020, 7:41 PM EDT (23:41 UTC)
Expired
Aug 7, 2020, 9:25 PM EDT
In force
104 min
Issued by
NWS Baltimore/Washington
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

Counties Baltimore County, MD, Harford County, MD

The radar

The Sterling radar (KLWX), 105 km from the middle of the area, began a volume at 23:41 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 office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 6, 8:54 PM EDTAreal Flood WarningLWXLoudoun6 hr
Aug 6, 8:56 PM EDTSevere Thunderstorm WarningLWXLoudoun49 min
Aug 6, 9:06 PM EDTFlash Flood Warning Considerable damage threatLWXLoudoun3 hr
Aug 6, 9:34 PM EDTAreal Flood WarningLWXSpotsylvania2 hr
Aug 6, 10:09 PM EDTFlash Flood Warning Considerable damage threatLWXLoudoun4 hr
Aug 6, 10:13 PM EDTFlash Flood Warning EmergencyCatastrophic damage threatLWXLoudoun96 min
Aug 7, 2:04 AM EDTAreal Flood WarningLWXLoudoun3 hr
Aug 7, 2:21 AM EDTAreal Flood WarningLWXLoudoun5 hr
Aug 7, 3:46 AM EDTFlash Flood WatchLWXAlbemarle, Amherst, Arlington, Augusta, Culpeper, Fairfax and 22 more21 hr
Aug 7, 2:33 PM EDTSevere Thunderstorm WarningLWXAugusta, Rockingham42 min
Aug 7, 4:39 PM EDTSevere Thunderstorm WarningLWXAugusta, Rockingham, City of Staunton51 min
Aug 7, 5:13 PM EDTSevere Thunderstorm WarningLWXAugusta, City of Waynesboro47 min
Aug 7, 5:39 PM EDTSpecial Marine WarningLWX2 hr
Aug 7, 6:52 PM EDTSpecial Marine WarningLWX2 hr
Aug 7, 7:08 PM EDTSevere Thunderstorm WarningLWXAugusta, City of Waynesboro52 min
Aug 6, 9:07 PM EDTSevere Thunderstorm WarningLWXFrederick38 min
Aug 7, 2:08 PM EDTSevere Thunderstorm WarningLWXFrederick, Washington52 min
Aug 7, 2:48 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick36 min
Aug 7, 4:26 PM EDTSevere Thunderstorm WarningLWXAllegany49 min
Aug 7, 4:53 PM EDTSevere Thunderstorm WarningLWXAllegany27 min
Aug 7, 5:03 PM EDTSevere Thunderstorm WarningLWXAllegany42 min
Aug 7, 5:28 PM EDTAreal Flood WarningLWXBaltimore, Harford4 hr
Aug 7, 5:36 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford39 min
Aug 7, 6:04 PM EDTSevere Thunderstorm WarningLWXHarford41 min
Aug 7, 6:12 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford48 min
Aug 7, 6:15 PM EDTAreal Flood WarningLWXHarford6 hr
Aug 7, 7:39 PM EDTAreal Flood WarningLWXAnne Arundel, Baltimore5 hr
Aug 7, 5:15 PM EDTSevere Thunderstorm WarningLWXPendleton45 min
Aug 7, 5:40 PM EDTSevere Thunderstorm WarningLWXPendleton50 min

Nearby

Flash Flood Warnings in Maryland, 2020Every flash flood warning in 2020

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.