Alert archive / Alabama / Dense Fog Advisories in 2017

Dense Fog Advisory 13, NWS Birmingham, AL

April 21, 20179 counties in Alabama

NWS Birmingham, AL issued this dense fog advisory at Apr 21, 2017, 6:24 AM CDT for 9 counties in Alabama. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Apr 21, 2017, 6:24 AM CDT (11:24 UTC)
Expired: Apr 21, 2017, 9:00 AM CDT
In force: 3 hr
Issued by: NWS Birmingham, AL

Counties Autauga County, AL, Barbour County, AL, Bullock County, AL, Elmore County, AL, Lowndes County, AL, Macon County, AL, Montgomery County, AL, Pike County, AL, Russell County, AL

The radar

The Maxwell AFB radar (KMXX), 39 km from the middle of the area, began a volume at 11:22 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 dense fog advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Birmingham, AL wrote its last area forecast discussion before this dense fog advisory went out at Apr 21, 3:30 AM CDT, 2 hours 54 minutes earlier.

Area forecast discussion, Apr 21, 3:30 AM CDT, 2 hours 54 minutes before

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Hazardous weather outlook, Apr 21, 6:21 AM CDT, 3 minutes before

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Nearby

Dense Fog Advisories in Alabama, 2017 Every dense fog advisory 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.