Warning Vector

Severe Thunderstorm Warning

NWS Riverton WY ยท US

Updated

Details

A Severe Thunderstorm Warning Remains In Effect Until 700 PM MDT For Central Natrona County

Event
Severe Thunderstorm Warning
Issued
Onset
Message expires
Expected end
Category
Meteorological
Urgency
Immediate
Severity
Severe
Certainty
Observed
Response
Shelter

Description

Overview

At 650 PM MDT, a severe thunderstorm was located over Goldeneye Reservoir, which is 23 miles northwest of Casper, moving east at 20 mph.

Hazard

Ping pong ball size hail and 60 mph wind gusts.

Source

Radar indicated.

Impacts

People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. This severe storm will be near... Goldeneye Reservoir around 655 PM MDT.

Instructions

For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.

Affected areas

  • Natrona County, WY

Public contact

Issuer
NWS Riverton WY

Message record

Received
Issue to receipt
~19s
CAP status
Actual
CAP message type
Update
Lifecycle
Updated
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M2Y4QJJ5Y2FSGNECSYHW2TX3
Identifier
urn:oid:2.49.0.1.840.0.0f4087aa6044ab45e55c8a895a1a083be5660a07.001.1
Sender
w-nws.webmaster@noaa.gov
Scope
Public
CAP source
211803 v2.3.0
Handling codes
IPAWSv1.0
Issuing office
NWS Riverton WY
AWIPS ID
CAPRIW
NWWS sequence
nwws_processor.1433
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

NameValue
SAMESVS
NationalWeatherServiceSVW

Parameters

NameValue
AWIPSidentifierSVSRIW
WMOidentifierWWUS55 KRIW 200051
NWSheadlineA SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM MDT FOR CENTRAL NATRONA COUNTY
eventMotionDescription2026-09-20T00:50:00-00:00...storm...269DEG...16KT...43.02,-106.73
windThreatRADAR INDICATED
maxWindGust60 MPH
hailThreatRADAR INDICATED
maxHailSize1.50
tornadoDetectionPOSSIBLE
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
EAS-ORGWXR
VTEC/O.CON.KRIW.SV.W.0062.000000T0000Z-260920T0100Z/
eventEndingTime2026-09-19T19:00:00-06:00
BLOCKCHANNELCMAS
Locations

Location data

  • Natrona County, WY
NameValue
SAME056025
UGCWYC025
Polygons
42.98,-106.84 43.07,-106.88 43.14,-106.65 42.92,-106.56 42.98,-106.84