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Niobrara County weather alerts

2 active alerts for Niobrara County, Wyoming right now: a Severe Thunderstorm Warning and a Special Weather Statement.

10 in the last 30 days 10 in 12 months (since Aug 30) most common: Special Weather Statement Get alerts on your phone →

Active alerts for Niobrara County

Refreshed every few minutes; times in MDT.

Severe Immediate

Severe Thunderstorm Warning

Issued Sun, Sep 6, 9:17 PM MDT by NWS Cheyenne WY Until Sun, Sep 6, 10:00 PM MDT (in 26 min)

Area: Converse, WY; Niobrara, WY; Platte, WY

SVRCYS The National Weather Service in Cheyenne has issued a * Severe Thunderstorm Warning for... Southwestern Niobrara County in east central Wyoming... Northern Platte County in southeastern Wyoming... East central Converse County in east central Wyoming... * Until 1000 PM MDT. * At 916 PM MDT, severe thunderstorms were located along a line extending fr...

What it means: A storm with hail of 1 inch or larger, winds of 58 mph or more, or both, is occurring or imminent. Move indoors and away from windows.

Full alert with map and forecast →

Moderate Expected

Special Weather Statement

Issued Sun, Sep 6, 9:14 PM MDT by NWS Cheyenne WY Until Sun, Sep 6, 9:45 PM MDT (in 11 min)

Area: Converse County Lower Elevations; Niobrara County; North Laramie Range; Central Laramie Range and Southwest Platte County; East Platte County

At 913 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from Glendo State Park to near Wheatland. Movement was northeast at 50 mph. HAZARD...Wind gusts of 50 to 55 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetat...

What it means: A heads-up about conditions that do not meet warning or advisory criteria but still deserve attention, such as a strong storm, patchy fog or a brief burst of snow.

Full alert with map and forecast →

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Where

Niobrara County on the map

Alert polygons are NWS's own. Forecast Bar's radar shows the same warnings over live precipitation, with future radar and lightning. See the radar.

Last 30 days

Recent alerts for Niobrara County

Alert	Issued	Ended	Issued by
Severe Thunderstorm Warning	9:31 PM	10:00 PM	Cheyenne WY
Special Weather Statement	7:27 PM	8:30 PM	Cheyenne WY
Special Weather Statement	6:52 PM	7:15 PM	Cheyenne WY
Special Weather Statement	5:27 PM	6:00 PM	Cheyenne WY
Special Weather Statement	3:54 PM	4:30 PM	Cheyenne WY
Red Flag Warning	Sep 3, 6:34 PM	Cancelled Sep 3, 8:19 PM	Cheyenne WY
Red Flag Warning	Sep 3, 1:33 AM	Sep 3, 7:00 PM	Cheyenne WY
Red Flag Warning	Sep 2, 12:09 PM	Sep 3, 7:00 PM	Cheyenne WY

Pattern

What Niobrara County gets alerted for

Every alert that named Niobrara County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.

Special Weather Statement

Red Flag Warning

Severe Thunderstorm Warning

Plain English

What these alerts mean

A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.

Severe Thunderstorm Warning

A storm with hail of 1 inch or larger, winds of 58 mph or more, or both, is occurring or imminent. Move indoors and away from windows.

Special Weather Statement

A heads-up about conditions that do not meet warning or advisory criteria but still deserve attention, such as a strong storm, patchy fog or a brief burst of snow.

Red Flag Warning

Critical fire weather: dry fuels, low humidity and gusty winds. Any fire can spread rapidly; avoid outdoor burning.

Nearby

Alerts near Niobrara County

Neighbouring counties in Wyoming

Weston County Goshen County Converse County2 Platte County2 All of Wyoming →

Questions

About Niobrara County alerts

How do I get Niobrara County weather alerts on my iPhone?

Install Forecast Bar, add Niobrara County as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for Niobrara County then arrives as a push notification at the moment of issue, with Critical Alerts available for the most dangerous warnings. Forecast Bar also runs on iPad, Apple Watch, Mac and Apple TV.

Where do these alerts come from?

From the National Weather Service alert feed (api.weather.gov). NWS issues alerts by county and by forecast zone; this page lists every product that names Niobrara County. Forecast Bar checks the feed continuously and this page refreshes within a few minutes of a change.

What is the difference between a watch, a warning and an advisory?

A warning means the hazard is occurring, imminent or very likely: act now. A watch means conditions are favourable for it to develop: prepare and stay informed. An advisory covers a hazard that is less serious than a warning but can still cause real inconvenience or danger if you are not ready for it.

Can I get this data as JSON?

Yes. /weather-alerts/wy/niobrara-county.json returns the active alerts, the last 30 days and the 12-month counts for Niobrara County, refreshed every minute. Please cache responses and credit National Weather Service as the source.

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Add Niobrara County in Forecast Bar and every NWS warning, watch and advisory arrives as a push notification the moment it is issued, on iPhone, iPad, Apple Watch, Mac and Apple TV.

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