1 thunderstorm wind, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Cheyenne, WY wrote its last area forecast discussion before the first event at Jun 21, 2:22 PM MST, 2 hours 10 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 322 PM MDT FRI JUN 21 2002 SOUTH TO SOUTHWEST WINDS HAVE FLUSHED OUT SOME LOW LEVEL MOISTURE WEST OF THE RANGES...BUT DEW POINTS IN THE 50S HAVE BEEN LINGERING EAST OF THE MOUNTAINS. A FEW THUNDERSTORMS MOVING NORTH OUT OF COLORADO LATE THIS AFTERNOON SHOULD BE ABLE TO MAKE IT INTO THE SOUTHERN PART OF THE FORECAST AREA BEFORE SUNSET. OTHER SHOWERS AND THUNDERSTORMS POSSIBLE IN THE NORTHERN PART OF THE AREA AS SOUTHEAST WINDS INTERACT WITH A WARM FRONT. MOST OF THE OVERNIGHT HOURS SHOULD REMAIN DRY...WITH A FEW MORE LATE DAY SHOWERS AND THUNDERSTORMS ON SATURDAY. TEMPS ARE THE MAIN CONCERN TOMORROW... WITH 700 MB TEMPS SUPPORTING ANOTHER DAY OF 80S AND 90S. A WEAK COLD FRONT COMES THROUGH EARLY SUNDAY...WHICH SHOULD HOLD TEMPS DOWN SOME. HOWEVER...THE RESPITE FROM HIGH TEMPS AND LOW RH LOOKS TO BE SHORT- LIVED. .EXTENDED... THE TREND IS STILL TOWARD HOT AND CONTINUED DRY FOR THE EXTENDED PERIOD. A PERSISTENT UPPER LEVEL RIDGE IS EXPECTED TO INTENSIFY OVER THE INTER-MOUNTAIN REGION WITH A STRONG NEGATIVE HEIGHT ANOMALY OVER ALASKA. THIS HAS BEEN WELL ADVERTISED AND IS IN ALL LONG RANGE MODELS. ASIDE FROM SOME PM THUNDERSTORMS IN EXTREME SOUTHEAST WYOMING IN THE EARLY PART OF NEXT WEEK...HOT AND DRY SHOULD BE THE MESSAGE AFTER WEDNESDAY. .CYS... WY...NONE. NE...NONE. RGB/WTP
The Cheyenne radar (KCYS), 95 km away, was scanning. The volume nearest the first event began at 23:34 UTC.
1 thunderstorm wind. Local standard time, as filed.
Microburst winds resulted in several downed trees, some onto homes, in Laramie, WY.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2002Every state in 2002This day in weather historyWarnings in Wyoming, June 2002
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5296533.