247
FNUS63 KFSD 120946
RFDFSD
RANGELAND FIRE DANGER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
446 AM CDT THU MAR 12 2026
DISCUSSION
SOUTHERLY FLOW WILL QUICKLY INCREASE BY MID-MORNING AND TURN A
BIT MORE SOUTHWEST TO WEST THROUGH THE AFTERNOON. WIND GUSTS OF
25 TO 40 MPH ARE EXPECTED THROUGH THE AFTERNOON. ALONG WITH THE
STRONG WINDS WILL BE DRY CONDITIONS WITH THE RELATIVE HUMIDITY
FALLING TO 25 TO 35 PERCENT GENERALLY NEAR AND SOUTH OF A HURON TO
SPENCER IA LINE. A RED FLAG WARNING IS IN EFFECT NEAR AND SOUTH
OF THIS LINE.
NEAR AND NORTH OF THIS LINE THE RELATIVE HUMIDITY WILL REMAIN
HIGHER ALONG WITH WHAT LOOKS TO BE A BIT MORE EXTENSIVE CLOUD
COVER. THERE WILL ALSO BE THE POTENTIAL FOR A FEW RAIN SHOWERS
IN THIS AREA.
WHILE THE RELATIVE HUMIDITY WILL IMPROVE THIS EVENING, A VERY
STRONG COLD FRONT WILL BRING NORTHWEST WINDS WITH GUSTS OF 55 TO
75 MPH LIKELY. BURNING IS HIGHLY DISCOURAGED THURSDAY.
POSTPONE BURNING DUE TO THE VERY HIGH TO EXTREME FIRE DANGER.
IAZ022-032-NEZ013-014-SDZ038-050-052-053-055-057>061-063>071-
121300-
BUENA VISTA-IDA-DIXON-DAKOTA-BEADLE-GREGORY-JERAULD-SANBORN-LAKE-
BRULE-AURORA-DAVISON-HANSON-MCCOOK-CHARLES MIX-DOUGLAS-HUTCHINSON-
TURNER-LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
..EXTREME FIRE DANGER
THE GRASSLAND FIRE DANGER INDEX WILL REACH THE EXTREME CATEGORY
THIS AFTERNOON. EXTREME WEATHER CONDITIONS AND VERY LOW
MOISTURE CONTENT OF GRASSES, AND OTHER DRY ORGANIC MATERIAL
ON THE GROUND, INDICATE THAT CRITICAL BURNING CONDITIONS EXIST.
ALL FIRES HAVE THE POTENTIAL TO BECOME LARGE AND SPREAD QUICKLY,
BECOMING ERRATIC WITH EXTREME BEHAVIORAL CHARACTERISTICS.
NO OUTDOOR BURNING SHOULD TAKE PLACE.
OUTLOOK FOR FRIDAY AFTERNOON...THE GRASSLAND FIRE DANGER INDEX
WILL REACH THE MODERATE CATEGORY.
THE GRASSLAND FIRE DANGER PRODUCT REFLECTS FIRE DANGER FOR NATIVE
GRASSES. IT IS NOT INTENDED FOR CURED AGRICULTURAL CROPS, NOR
WILL IT REFLECT CONDITIONS IN ROAD DITCHES WHICH HAVE BEEN MOWED.
IAZ001>003-012>014-020-021-031-MNZ071-072-080-081-089-090-097-098-
SDZ039-040-054-056-062-121300-
LYON-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY-PLYMOUTH-CHEROKEE-
WOODBURY-LINCOLN-MURRAY-COTTONWOOD-NOBLES-JACKSON-PIPESTONE-ROCK-
KINGSBURY-BROOKINGS-MINER-MOODY-MINNEHAHA-
..VERY HIGH FIRE DANGER
THE GRASSLAND FIRE DANGER INDEX WILL REACH THE VERY HIGH
CATEGORY THIS AFTERNOON. VERY POOR WEATHER CONDITIONS AND
VERY LOW MOISTURE CONTENT OF GRASSES, AND OTHER DRY
ORGANIC MATERIAL ON THE GROUND, INDICATE THAT DANGEROUS
BURNING CONDITIONS EXIST. FIRES WILL SPREAD RAPIDLY AND
SHOW ERRATIC BEHAVIOR. OUTDOOR BURNING IS NOT RECOMMENDED.
OUTLOOK FOR FRIDAY AFTERNOON...THE GRASSLAND FIRE DANGER INDEX
WILL REACH THE MODERATE CATEGORY.
THE GRASSLAND FIRE DANGER PRODUCT REFLECTS FIRE DANGER FOR NATIVE
GRASSES. IT IS NOT INTENDED FOR CURED AGRICULTURAL CROPS, NOR
WILL IT REFLECT CONDITIONS IN ROAD DITCHES WHICH HAVE BEEN MOWED.
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