Flash Flood Warning
NWS Denver CO ยท US
Details
Flash Flood Warning Issued September 22 At 7:33PM MDT Until September 22 At 10:30PM MDT By NWS Denver CO
- Event
- Flash Flood Warning
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Immediate
- Severity
- Severe
- Certainty
- Likely
- Response
- Avoid
Description
Overview
FFWBOU The National Weather Service in Denver has issued a * Flash Flood Warning for... Western Arapahoe County in northeastern Colorado... Northeastern Douglas County in northeastern Colorado... * Until 1030 PM MDT. * At 733 PM MDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 2 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly.
Hazard
Flash flooding caused by thunderstorms.
Source
Radar and automated gauges.
Impacts
Flash flooding of small creeks and streams, gulches, roads, and poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Eastern Centennial, eastern Highlands Ranch, northern Castle Rock, Parker, Greenwood Village, Lone Tree, Castle Pines, The Pinery, Foxfield and Cherry Creek Reservoir.
Instructions
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Excessive runoff from this storm will cause flash flooding of small creeks and streams, highways, streets, underpasses, drainage areas and other low lying spots.
Affected areas
- Western Arapahoe County, CO
- Douglas County, CO
Public contact
- Issuer
- NWS Denver CO
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~1m17s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M35YCD7QDYJA6CDWMVKR32QW
- Identifier
- urn:oid:2.49.0.1.840.0.8317f4f140c23cd2dcc15b37cf36ddb416458f82.001.1
- Sender
- w-nws.webmaster@noaa.gov
- Scope
- Public
- CAP source
- 211803 v2.3.0
- Handling codes
- IPAWSv1.0
- Issuing office
- NWS Denver CO
- AWIPS ID
- CAPBOU
- NWWS sequence
- nwws_processor.2329
- WMO heading
- XOUS55
- WMO data type
- CAP alert message XML (XO)
- WMO geography
- United States (US)
- WMO bulletin number
- 55
Event codes
| Name | Value |
|---|---|
| SAME | FFW |
| NationalWeatherService | FFW |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | FFWBOU |
| WMOidentifier | WGUS55 KBOU 230133 |
| flashFloodDetection | RADAR AND GAUGE INDICATED |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| EAS-ORG | WXR |
| VTEC | /O.NEW.KBOU.FF.W.0038.260923T0133Z-260923T0430Z/ |
| eventEndingTime | 2026-09-22T22:30:00-06:00 |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Western Arapahoe County, CO
- Douglas County, CO
| Name | Value |
|---|---|
| SAME | 408005 |
| SAME | 008035 |
| UGC | COC005 |
| UGC | COC035 |
- Polygons
- 39.62,-104.9 39.62,-104.89 39.64,-104.89 39.65,-104.88 39.64,-104.88 39.66,-104.85 39.66,-104.87 39.67,-104.87 39.67,-104.88 39.66,-104.88 39.66,-104.89 39.68,-104.88 39.68,-104.87 39.6,-104.72 39.58,-104.7 39.45,-104.74 39.38,-104.85 39.45,-104.96 39.62,-104.9