Warning Vector

Severe Thunderstorm Warning

NWS Riverton WY ยท US

New
This event was updated at .

Details

Severe Thunderstorm Warning Issued September 19 At 6:59PM MDT Until September 19 At 7:30PM MDT By NWS Riverton WY

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

Description

Overview

SVRRIW The National Weather Service in Riverton has issued a * Severe Thunderstorm Warning for... Northeastern Natrona County in central Wyoming... * Until 730 PM MDT. * At 659 PM MDT, a severe thunderstorm was located near Goldeneye Reservoir, which is 22 miles northwest of Casper, moving east at 20 mph.

Hazard

60 mph wind gusts, quarter size hail, and accumulating hail.

Source

Radar indicated.

Impacts

Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * This severe thunderstorm will remain over mainly rural areas of northeastern Natrona County.

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
~52s
CAP status
Actual
CAP message type
Alert
Lifecycle
New
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M2Y577HXTE1AW0Z7DCK9N6G9
Identifier
urn:oid:2.49.0.1.840.0.1aa32dbad7116db28070c572cf10d3400d71d414.001.1
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.1698
WMO heading
XOUS55
WMO data type
CAP alert message XML (XO)
WMO geography
United States (US)
WMO bulletin number
55

Event codes

NameValue
SAMESVR
NationalWeatherServiceSVW

Parameters

NameValue
AWIPSidentifierSVRRIW
WMOidentifierWUUS55 KRIW 200059
eventMotionDescription2026-09-20T00:59:00-00:00...storm...262DEG...17KT...43.05,-106.66
windThreatRADAR INDICATED
maxWindGust60 MPH
hailThreatRADAR INDICATED
maxHailSize1.00
tornadoDetectionPOSSIBLE
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
EAS-ORGWXR
VTEC/O.NEW.KRIW.SV.W.0063.260920T0059Z-260920T0130Z/
eventEndingTime2026-09-19T19:30:00-06:00
BLOCKCHANNELCMAS
Locations

Location data

  • Natrona County, WY
NameValue
SAME056025
UGCWYC025
Polygons
42.99,-106.76 43.09,-106.78 43.16,-106.5 42.96,-106.45 42.99,-106.76