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In the Beginning...

The first Cheyenne Weather Office was established by the U.S. Signal Service in 1870. Sergeant Asa Dobbins was in charge and operated the station with a barometer, self registering anemometer, wind vane, and wet and dry bulb temperatures. He recorded weather information from 1870 until 1878.

Asa Dobbins

Asa Dobbins the first weather observer at Cheyenne

Walter Sherman Palmer

Walter Sherman Palmer the Weather Bureau Secretary Director in Cheyenne (1898-1910)

 

The first office was located on the second floor on 16th Street between Carey Avenue and Capital Avenue In 1883, the Weather Bureau of the United States began to utilize the office in Cheyenne. The Weather Bureau was established through and signed by Ulysses S. Grant to provide meteorological observations to military stations. The office moved eight times before moving to it's National Weather Service location on Airport Parkway.

 

Cheyenne old office

Old weather service office located 

Cheyenne old office

at the Municipal Airport from 1975 until1993

About Cheyenne...

Cheyenne is located in the southeastern corner of Wyoming at an elevation of 6,120 feet. The surrounding country is mostly rolling prairie. The elevation climbs west to the Laramie Mountain Ridge about 9,000 feet, approximately 30 miles west of Cheyenne. The current population has been on the rise since the early 2000s following the oil boom, currently over 62,000.

 

The Forecast...

The National Weather Service Forecast Office in Cheyenne provides forecasts for southeast Wyoming and the western Nebraska Panhandle. Some of the products that are issued include: severe thunderstorm and tornado warnings, flash flood watches/warnings, high wind watches/warning, winter weather watches/warning, aviation, and fire weather forecasts.

 

Forecast Area

NWS Cheyenne County Warning and Forecast Area

All of the forecasts provided are prepared by meteorologists. The office is staffed 24 hours, 7 days a week, 365 days a year. The forecasters are constantly monitoring the latest weather, radar and satellite data, local media outlets, and surrounding National Weather Service Forecast Offices to ensure the accuracy and consistency of the weather forecast.

The Forecast...

We issue 7 day forecasts for southeast Wyoming and the western Nebraska panhandle. Meteorologists utilize the Advanced Weather Integrated Processing System (AWIPS) to analyze computer model forecasts, radar data, satellites, and much more. In addition to a 7 day forecast, the forecasters issue watches, warnings, and advisories. Fire weather and aviation forecasts are also disseminated. Aviation forecasts are produced for Cheyenne, Laramie, Rawlins, Chadron, Scottsbluff, Sidney, and Alliance terminals. Fire weather forecasts are especially important to support firefighter efforts.

operations                                                A few of the Cheyenne

operationsmeteorologists working

 

Watch, Warnings, and Advisories

Meteorologists issue watches, warnings, and advisories during weather events that require additional precautions.

 

Example watch and warning

NWS Cheyenne front page showing color coded watches and warnings. 

Watches are issued when conditions are favorable for events the will begin the next day or two. Watches can be issued for many different types of weather events such as: severe thunderstorm, tornado, floods, high winds, fire weather, and winter weather. Watches are designed to ensure that there is plenty of time to prepare and take the necessary precautions before warnings are issued.

 

Warnings are much more serious and are issued when events are imminent or currently observed. Warnings are urgent and action should be taken immediately.

 

In addition to the watches and warnings, the weather service also issues advisories. These are generally non-life threatening.

 

Most of the watches and warning are issued by the forecast office. Although, in the event of severe thunderstorms and tornadoes, watches are prepared in collaboration with the Storm Prediction Center (SPC) in Norman, OK. After the watch is issued by the SPC, the local forecast office monitors the radar to make the decision to issue warnings.