public-safety
Dense Fog Advisory issued Sept. 19, 2026 by NWS Aberdeen SD
Dense Fog Advisory issued September 19 at 4:02AM CDT until September 19 at 10:00AM CDT by NWS Aberdeen SD. Areas named: Campbell; McPherson; Marshall; Roberts; Walworth; Edmunds; Day; Potter; Faulk; Grant; Deuel; Sully; Hughes; Hyde; Hand; Lyman; Buffalo.
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NWS Aberdeen SD issued a Dense Fog Advisory on Sept. 19, 2026, 3:02 a.m. MDT / 4:02 a.m. CDT, according to the National Weather Service's public alert record.
The alert states an effective time of Sept. 19, 2026, 3:02 a.m. MDT / 4:02 a.m. CDT, an onset of Sept. 19, 2026, 3:02 a.m. MDT / 4:02 a.m. CDT, and an expiry of Sept. 19, 2026, 9 a.m. MDT / 10 a.m. CDT. South Dakota spans two time zones and this alert may reach both, so each instant is shown in Mountain and then Central time; the office's own published offset is preserved in the machine-readable record.
The alert separately states that the hazard itself ends at Sept. 19, 2026, 9 a.m. MDT / 10 a.m. CDT. That is a different field from the message's expiry above and the two can differ.
Whether this alert is currently in effect is not stated in this text, deliberately: it depends on the time you are reading, so 605Buzz computes it from the expiry above each time the page is loaded rather than storing an answer that would go out of date without anyone noticing. The status shown at the top of this page is the computed one.
The issuing office classified this message as severity "Moderate", certainty "Likely" and urgency "Expected". Those are the National Weather Service's own categories, reproduced exactly; 605Buzz does not re-rank them or translate them into a scale of its own.
The recommended response type on the message is "Execute".
The alert names these areas: Campbell; McPherson; Marshall; Roberts; Walworth; Edmunds; Day; Potter; Faulk; Grant; Deuel; Sully; Hughes; Hyde; Hand; Lyman; Buffalo. The National Weather Service zone codes are SDZ004, SDZ005, SDZ007, SDZ008, SDZ009, SDZ010, SDZ011, SDZ016, SDZ017, SDZ021, SDZ023, SDZ034, SDZ035, SDZ036, SDZ037, SDZ048 and SDZ051.
The issuing office's own summary line, as written on Sept. 19, 2026, 3:02 a.m. MDT / 4:02 a.m. CDT:
DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
The full text of the alert as issued on Sept. 19, 2026, 3:02 a.m. MDT / 4:02 a.m. CDT, reproduced without changes:
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Portions of central, north central, and northeast South Dakota.
* WHEN...Until 10 AM CDT this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
The message carries no separate protective-action text.
This alert is a work of the United States federal government — the National Weather Service, part of NOAA — and is in the public domain; no copyright is claimed on it and none is asserted here. 605Buzz reproduces the record and does not add meteorological judgement. For live conditions and alerts, go to the National Weather Service.
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