OFFICIAL WEATHER ALERT · ACTIVE

Dense Fog Advisory

Dense Fog Advisory issued November 3 at 8:49PM CST until November 4 at 10:00AM CST by NWS Grand Forks ND

Moderate

What is happening

* WHAT...Visibility one quarter to one half mile in dense fog. * WHERE...Benson, Cavalier, Eddy, Nelson, Ramsey, Towner, Western Walsh, Griggs, and Steele Counties. * WHEN...Dense Fog is ongoing or expected to develop lasting until 10 AM CST Wednesday. * IMPACTS...Low visibility could make driving conditions hazardous.

Official instructions

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Original message from NWS Grand Forks ND. Wording is preserved from the source.

Source information

Open official source

Other current warnings

MinorActive

Small Craft Advisory

Sheboygan to Port Washington WI; Port Washington to North Point Light WI; North Point Light to Wind Point WI; Wind Point WI to Winthrop Harbor IL

NWS Milwaukee/Sullivan WIIssued 4 Nov, 03:55 UTCExpires 4 Nov, 12:00 UTC

MinorUpcoming

Coastal Flood Advisory

North Bay Interior Valleys; San Francisco Bay Shoreline

NWS San Francisco CAIssued 4 Nov, 03:51 UTCExpires 4 Nov, 12:00 UTC

MinorUpcoming

Coastal Flood Advisory

San Francisco

NWS San Francisco CAIssued 4 Nov, 03:51 UTCExpires 4 Nov, 12:00 UTC

Understand the warning

A bright lightning bolt cuts through gray storm clouds above silhouetted palm trees.

UNDERSTAND THE ALERT

Weather warning levels, explained

Understand severity, certainty and urgency before the weather changes.

Read the guide

WEATHER EXPLAINED

From a forecast to an official weather alert

Where warnings come from, how they update, and why coverage matters.

Read the guide

WEATHER EXPLAINED

Weather radar and alert maps are different

What each view can tell you—and the questions it cannot answer.

Read the guide