Moderate Cold Wave ● Active

ColdWave Advisory — Siheung, Republic of Korea

Event time: Oct 21, 2026 01:00 UTC Last updated: 1 hr ago South Korea

Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

(1) ColdWave Advisory Announcement : 2026-10-21T21:00:00+09:00
When any of the following is expected between October and April: ① Morning minimum temperature is predicted to drop by more than 10℃ than the previous day to below 3℃ and to lower by 3℃ compared to the climatological normal year ② Morning minimum temperature of -12℃ or less is expected for more than 2 days ③ Serious damage is expected due to rapid temperature drop.

Measurements

Coordinates	37.3844, 126.7700
Region	Siheung
Location Precision	polygon
Issuing Authority	Republic of Korea — kr-kma-weather-en
Cap Urgency	Future
Cap Certainty	Observed

Official source

Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.

This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.

Severity as published by WMO Alert Hub (national weather services).

View original report

This event as JSON · API and licence

Source updated 1 hour ago (Oct 21, 2026 01:03 UTC) · we last heard from WMO Alert Hub (national weather services) 34 seconds ago

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Official authorities in South Korea

If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.

Korea Meteorological Administration

More for South Korea →

What to do

Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.

Hypothermia and frostbite prevention, home heating safety, and surviving being stranded in a vehicle.

Open Severe Cold & Winter Storm Safety →

Nearby & related events

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Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.