Alert archive / Maryland / Flash Flood Warnings in 2011

Flash Flood Warning 160, NWS Baltimore/Washington

September 10, 2011Baltimore County, Harford County, Maryland

NWS Baltimore/Washington issued this flash flood warning at Sep 10, 2011, 7:41 PM EDT for Baltimore County, Harford County, Maryland. It was in force for 90 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: Sep 10, 2011, 7:41 PM EDT (23:41 UTC)
Expired: Sep 10, 2011, 9:11 PM EDT
In force: 90 min
Issued by: NWS Baltimore/Washington
Area: Storm-based polygon
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 23:43 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 forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Baltimore/Washington wrote its last area forecast discussion before this flash flood warning went out at Sep 10, 2:34 PM EDT, 5 hours 7 minutes earlier.

Area forecast discussion, Sep 10, 2:34 PM EDT, 5 hours 7 minutes before

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Hazardous weather outlook, Sep 10, 3:00 PM EDT, 4 hours 41 minutes before

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In the hours before

Special weather statement, Sep 10, 7:36 PM EDT, 5 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 9, 8:27 PM EDT	River Flood Warning	LWX	Washington	25 hr
Sep 10, 7:36 PM EDT	Special Weather Statement	LWX	Harford	24 min

Nearby

Flash Flood Warnings in Maryland, 2011 Every flash flood 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.