Alert archive / Tennessee / Dense Fog Advisories in 2021

Dense Fog Advisory 7, NWS Memphis, TN

April 29, 202116 counties in Tennessee; 5 counties in Arkansas

NWS Memphis, TN issued this dense fog advisory at Apr 29, 2021, 11:12 PM CDT for 16 counties in Tennessee; 5 counties in Arkansas. It took effect at Apr 30, 2021, 12:00 AM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Apr 29, 2021, 11:12 PM CDT (04:12 UTC)
In effect from: Apr 30, 2021, 12:00 AM CDT
Expired: Apr 30, 2021, 9:00 AM CDT
In force: 9 hr
Issued by: NWS Memphis, TN

All 21 counties

Clay County, AR, Craighead County, AR, Greene County, AR, Mississippi County, AR, Poinsett County, AR, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Gibson County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, Obion County, TN, Tipton County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 83 km from the middle of the area, began a volume at 04:15 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 Memphis, TN wrote its last area forecast discussion before this dense fog advisory went out at Apr 29, 6:28 PM CDT, 4 hours 44 minutes earlier.

Area forecast discussion, Apr 29, 6:28 PM CDT, 4 hours 44 minutes before

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Hazardous weather outlook, Apr 29, 11:06 AM CDT, 12 hours 6 minutes before

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Nearby

Dense Fog Advisories in Tennessee, 2021 Dense Fog Advisories in Arkansas, 2021 Every dense fog advisory in 2021

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.