512
FNUS63 KABR 201927
RFDABR
RANGELAND FIRE DANGER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
227 PM CDT THU AUG 20 2026
DISCUSSION
A WEAK COLD FRONT WILL CONTINUE TO SINK SOUTHEAST OVER PORTIONS OF
EASTERN SOUTH DAKOTA AND MINNESOTA THROUGH THE REST OF THE DAYTIME
HOURS. THE MAIN RESULT OF THIS COLD FRONT WILL BE WINDS SHIFTING OUT
OF A NORTH TO NORTHWESTERLY DIRECTION AND INCREASING, WITH GUSTS OF
20 TO NEAR 25 MPH. THESE WINDS WILL RELAX THIS EVENING WITH THE LOSS
OF DAYTIME HEATING AND MIXING. RELATIVE HUMIDITY OF 20 TO 30% OVER
CENTRAL SOUTH DAKOTA WILL IMPROVE TO 70% OR GREATER TONIGHT.
FRIDAY WILL BRING WINDS MAINLY OUT OF AN EAST TO NORTHERLY DIRECTION,
WITH RELATIVE HUMIDITY VALUES FALLING TO 30 TO 40% OVER CENTRAL
SOUTH DAKOTA, WHILE STAYING ABOVE 40-50% OVER NORTHEASTERN SOUTH
DAKOTA AND WEST CENTRAL MINNESOTA. MAINLY DRY WEATHER WILL CONTINUE
THROUGH THE DAY SATURDAY.
SDZ003-015-210930-
CORSON-DEWEY-
INCLUDING THE CITIES OF MCINTOSH AND ISABEL
127 PM MDT THU AUG 20 2026
..HIGH FIRE DANGER
UNFAVORABLE WEATHER CONDITIONS AND LOW MOISTURE CONTENT OF GRASSES,
AND OTHER DRY ORGANIC MATERIAL ON THE GROUND, INDICATE THAT THERE
IS HIGH POTENTIAL FOR A FIRE TO SPREAD. OUTDOOR BURNING SHOULD BE
RESTRICTED TO EARLY MORNING OR EVENING HOURS WHEN WIND SPEEDS ARE
USUALLY LOWER AND THE RELATIVE HUMIDITY IS HIGHER.
THE OUTLOOK FOR FRIDAY AFTERNOON...THE GRASSLAND FIRE DANGER INDEX
WILL REACH THE MODERATE CATEGORY.
SDZ004-005-009-010-016-017-033>036-045-048-210930-
CAMPBELL-MCPHERSON-WALWORTH-EDMUNDS-POTTER-FAULK-STANLEY-SULLY-
HUGHES-HYDE-JONES-LYMAN-
INCLUDING THE CITIES OF HERREID, EUREKA, MOBRIDGE, IPSWICH,
GETTYSBURG, FAULKTON, FORT PIERRE, ONIDA, PIERRE, HIGHMORE, MURDO,
AND KENNEBEC
227 PM CDT THU AUG 20 2026 /127 PM MDT THU AUG 20 2026/
..MODERATE FIRE DANGER
MARGINAL WEATHER CONDITIONS OR LOWERING MOISTURE CONTENT OF GRASSES,
AND OTHER DRY ORGANIC MATERIAL ON THE GROUND, INDICATE THAT THERE IS
SOME POTENTIAL FOR A FIRE TO SPREAD. ANY OUTDOOR BURNING SHOULD BE
CLOSELY MONITORED.
THE OUTLOOK FOR FRIDAY AFTERNOON...THE GRASSLAND FIRE DANGER INDEX
WILL REACH THE LOW TO MODERATE CATEGORY.
MNZ039-046-SDZ006>008-011-018>023-037-051-210930-
TRAVERSE-BIG STONE-BROWN-MARSHALL-ROBERTS-DAY-SPINK-CLARK-CODINGTON-
GRANT-HAMLIN-DEUEL-HAND-BUFFALO-
INCLUDING THE CITIES OF WHEATON, ORTONVILLE, ABERDEEN, BRITTON,
SISSETON, WEBSTER, REDFIELD, CLARK, WATERTOWN, MILBANK, HAYTI,
CLEAR LAKE, MILLER, AND FORT THOMPSON
227 PM CDT THU AUG 20 2026
..LOW FIRE DANGER
FAVORABLE WEATHER CONDITIONS OR A HIGH MOISTURE CONTENT OF GRASSES,
AND OTHER DRY ORGANIC MATERIAL ON THE GROUND, INDICATE THAT THE
PROBABILITY OF A FAST MOVING FIRE IS LOW. OUTDOOR BURNING UNDER
THESE CONDITIONS CAN USUALLY BE PERFORMED WITH REASONABLE SAFETY
PRECAUTIONS, BUT SHOULD BE MONITORED.
THE OUTLOOK FOR FRIDAY AFTERNOON...THE GRASSLAND FIRE DANGER INDEX
WILL REACH THE LOW CATEGORY.
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