Red Flag Warning
Issued by NWS Rapid City, SD

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000
WWUS83 KUNR 241050
RFWUNR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RAPID CITY SD
450 AM MDT THU APR 24 2014

...RED FLAG WARNING FROM NOON MDT /100 PM CDT/ TODAY TO
   600 PM MDT /700 PM CDT/ THIS EVENING FOR LOW RELATIVE HUMIDITY
   AND GUSTY WEST TO NORTHWEST WINDS FOR SOUTH DAKOTA FIRE WEATHER
   ZONE 265...

.DISCUSSION...A LOW PRESSURE SYSTEM TO THE NORTH OF THE AREA WILL
BRING GUSTY WINDS AND DRY AIR TO THE AREA TODAY. WEST TO NORTHWEST
WINDS OF 15 TO 30 MPH...WITH HIGHER GUSTS...CAN BE EXPECTED FROM
NORTHWEST TO SOUTH CENTRAL SD. THE DRY AIR AND MILD TEMPERATURES
WILL ALLOW RELATIVE HUMIDITIES TO DROP TO NEAR 15 PERCENT ACROSS
SOUTH CENTRAL SOUTH DAKOTA...WITH MINIMUM VALUES AROUND 20
PERCENT ELSEWHERE IN THE AREA. THE COMBINATION OF WIND AND LOW
HUMIDITY WILL LIKELY RESULT IN A PERIOD OF CRITICAL FIRE WEATHER
CONDITIONS DURING THE AFTERNOON OVER SOUTH DAKOTA FIRE ZONE 265.
FIRE WEATHER CONDITIONS ARE EXPECTED TO REMAIN BELOW CRITICAL
LEVELS THIS AFTERNOON IN SOUTH DAKOTA FIRE ZONES 263...264...AND
266 DUE TO THE HIGHER HUMIDITY. CONDITIONS WILL IMPROVE BY EARLY
EVENING.

SDZ263-264-266-241200-
/O.CAN.KUNR.FW.A.0001.140424T1800Z-140425T0100Z/
SOUTHWESTERN SOUTH DAKOTA-BADLANDS AREA-
CENTRAL SOUTH DAKOTA PLAINS-
450 AM MDT THU APR 24 2014

...FIRE WEATHER WATCH IS CANCELLED FOR FIRE WEATHER ZONES
263...264...AND 266...

THE NATIONAL WEATHER SERVICE IN RAPID CITY HAS CANCELLED THE FIRE
WEATHER WATCH.

ACROSS SOUTH DAKOTA FIRE WEATHER ZONES 263...264...AND
266...RELATIVE HUMIDITIES ARE EXPECTED TO DROP TO AROUND 20
PERCENT THIS AFTERNOON WITH WEST TO NORTHWEST WINDS OF 10 TO 25
MPH. FIRE WEATHER CONDITIONS ARE EXPECTED TO REMAIN BELOW CRITICAL
LEVELS THIS AFTERNOON DUE TO THE HIGHER HUMIDITY. HOWEVER...THE
GRASSLAND FIRE DANGER INDEX WILL RANGE FROM THE VERY HIGH TO
EXTREME CATEGORY ACROSS THESE AREAS THIS AFTERNOON.

$$

SDZ265-250000-
/O.UPG.KUNR.FW.A.0001.140424T1800Z-140425T0100Z/
/O.NEW.KUNR.FW.W.0002.140424T1800Z-140425T0000Z/
SOUTH CENTRAL SOUTH DAKOTA-
450 AM MDT THU APR 24 2014

...RED FLAG WARNING IN EFFECT FROM NOON MDT /100 PM CDT/ TODAY TO
   600 PM MDT /700 PM CDT/ THIS EVENING FOR LOW RELATIVE HUMIDITY
   AND GUSTY WEST TO NORTHWEST WINDS FOR SOUTH DAKOTA FIRE
   WEATHER ZONE 265...

THE NATIONAL WEATHER SERVICE IN RAPID CITY HAS ISSUED A RED FLAG
WARNING FOR LOW RELATIVE HUMIDITY AND GUSTY WEST TO NORTHWEST
WINDS...WHICH IS IN EFFECT FROM NOON MDT /100 PM CDT/ TODAY TO
600 PM MDT /700 PM CDT/ THIS EVENING. THE FIRE WEATHER WATCH IS
NO LONGER IN EFFECT.

* AFFECTED AREA...FIRE WEATHER ZONE 265 SOUTH CENTRAL SOUTH
  DAKOTA.

* WINDS...WEST TO NORTHWEST INCREASING TO 15 TO 25 MPH BY EARLY
  AFTERNOON...WITH GUSTS UP TO 35 MPH.

* TIMING...THIS AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 15 PERCENT THIS AFTERNOON.

* TEMPERATURES...HIGHS IN THE UPPER 60S.

* IMPACTS...THE COMBINATION OF LOW HUMIDITY...DRY FUELS...AND
  GUSTY WINDS WILL CREATE CRITICAL FIRE WEATHER CONDITIONS THIS
  AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$







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