615
NWUS55 KCYS 232232
LSRCYS
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
432 PM MDT SAT MAY 23 2026
.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON
.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.
..REMARKS..
0800 PM WILDFIRE 20 N BILL 43.50N 105.24W
05/13/2026 CONVERSE WY OTHER FEDERAL
AFTERNOON DRY THUNDERSTORMS WERE OBSERVED IN
THE AREA WHICH LIKELY INFLUENCED THIS FIRE.
NO LIGHTNING STRIKE WAS RECORDED BY GROUND
BASED NETWORKS WITHIN THE FIRE PERIMETER
HOWEVER. A NEARBY RAWS STATION IN ROCHELLE
HILLS WAS SAMPLING RELATIVE HUMIDITY VALUES
DOWN TO 8% AND WIND GUSTS TO 42 MPH LEADING
UP TO THE FIRE START. THE PERIMETER OF THE
FIRE IN THE CYS AREA BASED ON HIGH
RESOLUTION SATELLITE IMAGERY IS
APPROXIMATELY 720 ACRES, OUT OF 1318 TOTAL
ACREAGE. THE FIRE WAS CONTAINED BY MAY 20TH.
0947 PM WILDFIRE 10 ESE CRAWFORD 42.63N 103.24W
05/13/2026 DAWES NE OTHER FEDERAL
THIS WILDFIRE IS ESTIMATED TO HAVE REACHED
ABOUT 1,028 ACRES OF BURNED FOREST AND
GRASSLANDS. A PROBABLE CAUSE OF THE FIRE IS
FROM LIGHTNING. THE TIMING IS BASED ON A
NEARBY LIGHTNING STRIKE DETECTED BY GROUND
BASED DETECTION NETWORK. DURING THE EVENING
OF MAY 14 THE FIRE INCREASED IN INTENSITY ON
THE GOES SHORTWAVE INFRARED CHANNEL WITH AN
APPARENT INCREASE IN THE SMOKE PLUME
OBSERVED ON VISIBLE. THE PEAK SHORTWAVE
TEMPERATURE VALUE REACHED WAS 160 DEGREES
FAHRENHEIT. BY THE MORNING OF MAY 20TH THE
FIRE WAS REPORTED TO BE 100 PERCENT
CONTAINED.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page