Moderate

Possible threat to life or property

South Dakota Dense Fog Advisory | Effective 04/13/2026 06:05

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of north central and northeast South Dakota. * WHEN...Until 11 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. Instruction:<br /> If driving, slow down, use your headlights, and leave plenty of<br /> distance ahead of you.

Guam, Northern Mariana Islands High Surf Warning | Effective 04/13/2026 05:07

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> Corrected addtional details for clarity. ...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 5 AM CHST<br /> THURSDAY...<br /> ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY... * WHAT...For the High Surf Warning, dangerously large breaking waves<br /> of 12 to 16 feet for Guam and 15 to 20 ft for Rota and 20 to 30<br /> ft at Tinian and Saipan. For the Coastal Flood Warning,<br /> significant coastal flooding 1 to 3 ft for Guam, and 3 to 5 ft for<br />

Iowa Special Weather Statement | Effective 04/13/2026 05:20

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> WHAT...Areas of localized, shallow fog with visibilities around<br /> or under one half mile WHERE...Parts of north central Iowa, including parts of I-35 and<br /> US Highway 20 WHEN...Through 9 am IMPACTS...Drivers should be alert for reduced visibility at times. PREPAREDNESS AND PRECAUTIONARY ACTIONS...If driving this morning,<br /> please use low beam headlights. Instruction:

North Dakota Special Weather Statement | Effective 04/13/2026 04:27

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> Areas of fog will reduce the visibility to one quarter mile in<br /> parts of southwest North Dakota this morning. Motorists should be<br /> prepared for rapidly changing visibilities, and should use extra<br /> caution traveling. Use low beam headlights and be extra cautious<br /> at intersections and railroad crossings. The fog is expected to dissipate mid to late morning. Instruction:

Iowa Special Weather Statement | Effective 04/13/2026 04:17

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> Fog has developed across portions of eastern Iowa and could<br /> become locally dense with visibilities down to a quarter mile at<br /> times. If you are headed out early this morning, be prepared for<br /> rapid changes in visibility over short distances and keep plenty<br /> of stopping distance in front of you. The fog will dissipate by<br /> the mid morning. Instruction:

Iowa, Minnesota Special Weather Statement | Effective 04/13/2026 03:26

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> WHAT...Areas of localized, shallow dense fog with visibilities<br /> around or under one half mile. WHERE...Parts of north-central and northeast Iowa and far southern<br /> Minnesota just east of I-35. WHEN...Through 8am this morning. IMPACTS...Drivers should be alert for localized areas of reduced<br /> visibility. PREPAREDNESS AND PRECAUTIONARY ACTIONS...If driving this morning,<br /> allow yourself extra time and please use low beam headlights. Instruction:

Virginia Special Weather Statement | Effective 04/13/2026 02:52

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> The combination of low relative humidity values in the 25 to 30<br /> percent range, dry fuels, and SW winds gusting up to 20-25 mph<br /> will result in an increased risk for the rapid spread of wildfires<br /> across much of central and eastern Virginia, including the<br /> Richmond Metro area, the Virginia Piedmont, and inland portions of<br /> the Virginia Northern Neck. Residents are urged to exercise caution handling any potential<br />

Georgia, South Carolina Special Weather Statement | Effective 04/13/2026 02:22

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> Patchy fog will continue to expand across parts of the South Carolina<br /> Lowcountry into Southeast Georgia through sunrise. The fog could<br /> become locally dense with visibilities dropping to 1/4 mile or less<br /> at times. The nature of the fog is such that visibilities will vary<br /> greatly over short distances with the risk for locally dense fog<br /> being the greatest near bodies of water and other low-lying areas<br />

Florida, Georgia Special Weather Statement | Effective 04/13/2026 02:08

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> Areas of dense fog with visibilities of 1/4 mile or less have<br /> developed early this morning from the I-10 corridor northward<br /> across inland Southeast Georgia. These conditions will continue<br /> until just after sunrise, then improving visibilities are<br /> expected between 8am and 9am this morning. Fog could also be increasingly dense near areas of smoke produced<br /> by wildfires. Use caution while driving this morning, leaving<br />
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