Severe Cold Wave ● Monitoring
Freeze Warning issued October 15 at 9:26PM MDT until October 17 at 10:00AM MDT by NWS Grand Junction CO, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
* WHAT...For the first Freeze Warning, sub-freezing temperatures as
low as 24 expected. For the second Freeze Warning, sub-freezing
temperatures as low as 27 expected.
* WHERE...Central Yampa River Basin, Lower Yampa River Basin, Upper
Yampa River Basin, San Juan River Basin, and Central Colorado River
Basin.
* WHEN...For the first Freeze Warning, until 10 AM MDT Friday. For
the second Freeze Warning, from midnight Friday Night to 10 AM MDT
Saturday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Lower Yampa River Basin; Central Yampa River Basin; Upper Yampa River Basin; Central Colorado River Basin; San Juan River Basin |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-16T10:00:00-06:00 |
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 reportThis event as JSON · API and licence
Source updated 3 days ago (Oct 16, 2026 03:27 UTC) · we last heard from WMO Alert Hub (national weather services) 26 seconds ago
On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.
Internet connectivity at the time
Internet connectivity in United States dropped 45 hours after this event, and stayed disrupted for about 1 hour.
From 18 Oct 2026 00:00 UTC to 18 Oct 2026 01:00 UTC. Detected by active probing — networks that stopped answering.
Internet outages have many causes — damaged cables, power failures, network maintenance and deliberate shutdowns among them. IODA detects the loss of connectivity and does not attribute it to anything. This is shown because it happened at the same time, not because one caused the other.
Measured by IODA, Georgia Institute of Technology.
About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Lower Yampa River Basin; Central Yampa River Basin; Upper Yampa River Basin; Central Colorado River Basin; San Juan River Basin
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →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 →Earlier cold wave events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
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.