Severe Thunderstorm Warning
NWS Denver CO ยท US
Updated
This event was updated at .
Details
Severe Thunderstorm Warning Remains In Effect Until 11 PM MDT For Southwestern Weld County
- Event
- Severe Thunderstorm Warning
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Immediate
- Severity
- Severe
- Certainty
- Observed
- Response
- Shelter
Description
Overview
At 1027 PM MDT, a severe thunderstorm was located 4 miles south of Milton Reservoir, or 18 miles south of Greeley, moving southeast at 25 mph.
Hazard
60 mph wind gusts and quarter size hail.
Source
Radar indicated.
Impacts
Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Hudson, Keenesburg, Milton Reservoir, Prospect Valley and Roggen.
Instructions
Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.
Affected areas
- Weld County, CO
Public contact
- Issuer
- NWS Denver CO
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~1m10s
- CAP status
- Actual
- CAP message type
- Update
- Lifecycle
- Updated
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M313HC7BYPCP4H7SPCYKPGHC
- Identifier
- urn:oid:2.49.0.1.840.0.e0518ef1314d22d0c5c20e078306d4b2242f0e37.001.1
- 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.6560
- WMO heading
- XOUS55
- WMO data type
- CAP alert message XML (XO)
- WMO geography
- United States (US)
- WMO bulletin number
- 55
References
- Sender
- w-nws.webmaster@noaa.gov
- Sent
Event codes
| Name | Value |
|---|---|
| SAME | SVS |
| NationalWeatherService | SVW |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | SVSBOU |
| WMOidentifier | WWUS55 KBOU 210427 |
| NWSheadline | SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 11 PM MDT FOR SOUTHWESTERN WELD COUNTY |
| eventMotionDescription | 2026-09-21T04:09:00-00:00...storm...293DEG...19KT...40.21,-104.75 |
| windThreat | RADAR INDICATED |
| maxWindGust | 60 MPH |
| hailThreat | RADAR INDICATED |
| maxHailSize | 1.00 |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| EAS-ORG | WXR |
| VTEC | /O.CON.KBOU.SV.W.0410.000000T0000Z-260921T0500Z/ |
| eventEndingTime | 2026-09-20T23:00:00-06:00 |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Weld County, CO
| Name | Value |
|---|---|
| SAME | 008123 |
| UGC | COC123 |
- Polygons
- 40.32,-104.74 40.3,-104.27 40.0,-104.43 40.0,-104.55 40.17,-104.79 40.32,-104.74