Special Weather Statement
NWS Riverton WY ยท US
New
Details
A Strong Thunderstorm Will Impact Northwestern Lincoln And Southwestern Teton Counties Through 145 AM MDT
- Event
- Special Weather Statement
- Issued
- Onset
- Message expires
- Category
- Meteorological
- Urgency
- Expected
- Severity
- Moderate
- Certainty
- Observed
- Response
- Execute
Description
Overview
At 1254 AM MDT, Doppler radar was tracking a strong thunderstorm near Palisades Reservoir, moving northeast at 35 mph.
Hazard
Wind gusts up to 40 mph and penny inch hail.
Source
Radar indicated.
Impacts
Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Rafter J Ranch and Jackson.
Instructions
If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle.
Affected areas
- Teton and Gros Ventre Mountains
- Jackson Hole
- Star Valley
Public contact
- Issuer
- NWS Riverton WY
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~1m8s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M2SMRA0J4QXZ6VZZ619ABP2D
- Identifier
- urn:oid:2.49.0.1.840.0.1580283f53341b64b354386af477e2e752288ca4.001.1
- 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.1719
- 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 | SPS |
| NationalWeatherService | SPS |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | SPSRIW |
| WMOidentifier | WWUS85 KRIW 180654 |
| NWSheadline | A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN LINCOLN AND SOUTHWESTERN TETON COUNTIES THROUGH 145 AM MDT |
| eventMotionDescription | 2026-09-18T06:54:00-00:00...storm...246DEG...31KT...43.3,-111.1 |
| maxWindGust | 40 MPH |
| maxHailSize | 0.50 |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| EAS-ORG | WXR |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Teton and Gros Ventre Mountains
- Jackson Hole
- Star Valley
| Name | Value |
|---|---|
| SAME | 056013 |
| SAME | 056023 |
| SAME | 056035 |
| SAME | 056039 |
| UGC | WYZ012 |
| UGC | WYZ013 |
| UGC | WYZ023 |
- Polygons
- 43.48,-111.04 43.58,-110.72 43.29,-110.57 43.27,-110.58 43.18,-111.04 43.48,-111.04