772
FNUS63 KABR 210735
RFDABR
RANGELAND FIRE DANGER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
235 AM CDT TUE APR 21 2026
DISCUSSION
NORTHEASTERLY WINDS THIS MORNING WILL TURN TO BE FROM THE SOUTHEAST
THROUGH THE DAY. CENTRAL SOUTH DAKOTA COULD SEE WINDS GUST UP JUST
AROUND 25 MPH AT TIMES WHILE NORTHEASTERN SD WILL SEE WIND GUSTS
BELOW 15 MPH THIS AFTERNOON. MINIMUM RELATIVE HUMIDITY VALUES ARE
FORECAST TO STAY ABOVE 20 PERCENT FOR MOST OF NORTH CENTRAL AND
NORTHEASTERN SOUTH DAKOTA WHILE SOUTH CENTRAL SOUTH DAKOTA COULD SEE
VALUES BETWEEN 15 TO 20 PERCENT.
THERE WILL BE FAIRLY POOR RECOVERY TONIGHT IN RELATIVE HUMIDITY
VALUES AS WARM, DRY AIR MOVE IN. MINIMUM RELATIVE HUMIDITY VALUES
WEDNESDAY WILL BE BELOW 25 PERCENT WEST OF THE JAMES RIVER, WITH
SOUTH CENTRAL SD SEEING VALUES BETWEEN 15 TO 20 PERCENT. WINDS WILL
BE PICKING UP WEDNESDAY, WITH GUSTS IN THE AFTERNOON GETTING UP
AROUND 35 TO 45 MPH. THE STRONGER WINDS AND LOWER RELATIVE HUMIDITY
VALUES CREATE HIGHER FIRE WEATHER CONCERNS, AS SUCH A FIRE WEATHER
WATCH HAS BEEN ISSUED FOR PORTIONS OF CENTRAL SOUTH DAKOTA WEDNESDAY
AFTERNOON. EVEN AREAS NOT IN THE FIRE WEATHER WATCH HAVE ELEVATED
FIRE WEATHER CONCERNS, SO TAKE CAUTION BECAUSE IF A FIRE WERE TO
IGNITE, IT COULD SPREAD RAPIDLY AND BECOME DIFFICULT TO SUPPRESS OR
CONTROL.
SDZ003>005-009-016-212145-
CORSON-CAMPBELL-MCPHERSON-WALWORTH-POTTER-
INCLUDING THE CITIES OF MCINTOSH, HERREID, EUREKA, MOBRIDGE,
AND GETTYSBURG
235 AM CDT TUE APR 21 2026 /135 AM MDT TUE APR 21 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 WEDNESDAY AFTERNOON...THE GRASSLAND FIRE DANGER
INDEX WILL REACH THE VERY HIGH CATEGORY.
MNZ039-046-SDZ006>008-010-011-015-017>023-033>037-045-048-051-212145-
TRAVERSE-BIG STONE-BROWN-MARSHALL-ROBERTS-EDMUNDS-DAY-DEWEY-FAULK-
SPINK-CLARK-CODINGTON-GRANT-HAMLIN-DEUEL-STANLEY-SULLY-HUGHES-HYDE-
HAND-JONES-LYMAN-BUFFALO-
INCLUDING THE CITIES OF WHEATON, ORTONVILLE, ABERDEEN, BRITTON,
SISSETON, IPSWICH, WEBSTER, ISABEL, FAULKTON, REDFIELD, CLARK,
WATERTOWN, MILBANK, HAYTI, CLEAR LAKE, FORT PIERRE, ONIDA, PIERRE,
HIGHMORE, MILLER, MURDO, KENNEBEC, AND FORT THOMPSON
235 AM CDT TUE APR 21 2026 /135 AM MDT TUE APR 21 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 WEDNESDAY AFTERNOON...THE GRASSLAND FIRE DANGER
INDEX WILL REACH THE VERY HIGH TO EXTREME CATEGORY.
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