Flash-flood risk, Day 1
- Marginal
WPC’s excessive rainfall outlook, to , issued : a chance of flash flooding, in four categories. Data: NOAA/WPC.
Storm Mode / Tracked area
8 warnings total · 0 tornado warnings · 9 alerts including watches and advisories
Current alert feed · checked
Places saved on this device appear here with scripting enabled.
NWS’s polygons as issued, or the zones a zone-issued alert names; SPC’s watches by their counties. Checked . Data: NOAA/NWS, NOAA/SPC.
Interactive imagery loads separately. Missing radar does not remove warnings or imply clear weather.
Alert outlines: NOAA/NWS; cell points/observed segments: IEM/NEXRAD. A warning polygon is not a tornado footprint.
Total lightning, including in-cloud activity. Not ground-strike locations or a safe-to-go-outside signal.
Cached lightning observations have not loaded. An empty map is not zero lightning.
Source-rendered snow depth and snow water equivalent for the lower 48. History changes this snow picture only; warnings and radar keep their own clocks.
Stored snow depth · footprint valid 2026-10-16 21:00:00 UTC, picture retrieved 2026-10-17 05:23:07.248 UTC.
No NOHRSC picture displayed on the interactive map.

NOHRSC footprint times are metadata; pixel analysis time is not independently verified. Snow-depth pixels have previously differed from the footprint time. This is modeled/assimilated snow analysis, not a measurement at a place. Unshaded and no-data areas do not establish zero snow.
Collector checked not reported; feed generated not reported. Zero cells does not establish coverage or clear weather. Observations from different radars are not merged.
Current NWS warning
Freeze Warning
Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.
The polygon is a warned area, not a tornado footprint. NWS detection tags are independent of radar algorithms and reports.
Freeze Warning issued October 16 at 8:38PM MDT until October 17 at 9:00AM MDT by NWS Denver CO
* WHAT...Sub-freezing temperatures of 26 to 29 degrees expected. * WHERE...Julesburg, and Holyoke. * WHEN...From midnight tonight to 9 AM MDT Saturday. * IMPACTS...Freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Most of the northeast plains of Colorado will drop below freezing tonight. However, this Freeze Warning will only be in effect for locations that did not see a hard or killing freeze (temperatures closer to 28F) last night.
Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.
No retained revisions are available in this recording window.
Data: NOAA/NWS · KBOU.FZ.W.0005
Source-message history is not recorded imagery replay. Recorded radar/satellite imagery is not available in this view.
Auto-updating checks this site’s cache every minute; each source keeps its own clock.
WPC’s excessive rainfall outlook, to , issued : a chance of flash flooding, in four categories. Data: NOAA/WPC.
No river, coastal or lake gauge in this area is in flood, observed or forecast.
NWS’s gauges at flood stage or above in the area, worst first, each with its forecast hydrograph on Rain & rivers. Data: NOAA/NWPS.
WPC’s rain forecast and MRMS’s radar estimate of the rain that fell, on the Briefing’s map for the area.
Data: NOAA/WPC, NOAA/NSSL MRMS.
NOAA’s radar for the area, loaded by your browser as on the Radar page.
Live tiles; the radar keeps no last-good copy.
Nothing has changed since 05:28Z.
The products’ own words and times, and what is no longer in force since the last read. Never written by AI.
An area you chose, not a storm’s footprint: everything here is in force in this area, never “from this storm”.
No warning, watch or advisory for these hazards is in force in this area.
NWS’s alerts checked : a successful check, so this is none in force, not “can’t tell”.
NWS warnings and SPC watches checked
NWS watches and advisories checked
WPC excessive rainfall checked
NWPS river gauges checked
Radar live tiles, no last-good copy
Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.