091
FNUS73 KBIS 291912
FWSBIS
SPOT FORECAST FOR GRANT COUNTY WILDFIRE...NORTH DAKOTA WATCH CENTER
NATIONAL WEATHER SERVICE BISMARCK ND
212 PM CDT WED JUL 29 2026
FORECAST IS BASED ON FORECAST START TIME OF 1400 CDT ON JULY 29.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
..HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING
DISCUSSION
HOT CONDITIONS WILL CONTINUE AT THE BURN SITE, WITH HIGH TEMPERATURES
AND HEAT INDEX VALUES AROUND 100 DEGREES. WINDS REMAIN SOUTHERLY GUSTING
UP TO 25 MPH.
CHANCES FOR SHOWERS AND THUNDERSTORMS INCREASE LATE THIS AFTERNOON INTO
TONIGHT. IF A SHOWER OR THUNDERSTORM APPROACHES, BE PREPARED FOR THE
POSSIBILITY OF STRONG AND SHIFTING WINDS. WINDS WILL BE SOUTHEASTERLY, DECREASING
BY LATE EVENING. OVERNIGHT, WINDS WILL BE SHIFTING AS A FRONTAL BOUNDARY LINGERS
NEAR THE BURN SITE. HIGHER CHANCES FOR SHOWERS AND THUNDERSTORMS ARE EXPECTED FOR THURSDAY,
WITH HUMIDITY VALUES REMAINING ELEVATED.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY WITH PATCHY SMOKE. A SLIGHT
CHANCE OF A LATE AFTERNOON SHOWER OR THUNDERSTORM.
WINDS WILL BE VARIABLE AND GUSTY IN THE VICINITY OF
ANY SHOWER OR THUNDERSTORM.
CWR.................5 PERCENT.
CHANCE OF PCPN......20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 101.
MIN HUMIDITY........23 PERCENT.
WIND (20 FT)........SOUTH WINDS 15 TO 17 MPH WITH GUSTS TO 25 MPH.
MIXING HEIGHT.......9500 FT AGL.
TRANSPORT WINDS.....SOUTH 23 TO 25 MPH.
SMOKE DISPERSAL.....EXCELLENT.
TIME (CDT) 2PM 3PM 4PM 5PM
SKY (%).........30 25 37 60
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 5
CHC OF PCPN (%).0 0 0 20
CHC OF THDR (%).0 0 0 0
TEMP............98 98 99 100
RH..............29 27 23 23
20 FT WIND DIR..S S S S
20 FT WIND SPD..15 15 16 17
20 FT WIND GUST.22 22 23 25
MIX HGT (KFT)...8.1 9.0 9.5 9.2
TRANSP WIND DIR.S S S S
TRANSP WIND SPD.23 23 23 24
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH THE NIGHT.
CWR.................25 PERCENT.
CHANCE OF PCPN......40 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....AROUND 65.
MAX HUMIDITY........93 PERCENT.
WIND (20 FT)........SOUTHEASTERLY WINDS 13 TO 20 MPH WITH GUSTS TO
AROUND 25 MPH DECREASING TO AROUND 10 MPH IN THE
LATE EVENING. WINDS THEN BECOME VARIABLE AROUND 7
MPH AFTER MIDNIGHT. GUSTY AND ERRATIC WINDS
EXPECTED NEAR SHOWERS AND THUNDERSTORMS.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 14 TO 23 MPH SHIFTING TO THE SOUTH 9
TO 13 MPH OVERNIGHT.
SMOKE DISPERSAL.....EXCELLENT EARLY IN THE EVENING DECREASING TO POOR
AROUND MID-EVENING.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS.
CWR.................50 PERCENT.
CHANCE OF PCPN......70 PERCENT.
CHANCE OF THUNDER...50 PERCENT.
MAX TEMPERATURE.....AROUND 83.
MIN HUMIDITY........62 PERCENT.
WIND (20 FT)........VARIABLE AROUND 6 MPH IN THE MORNING BECOMING NORTHEAST
7 TO 13 MPH MID-DAY. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS.
MIXING HEIGHT.......3100 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH, THEN SHIFTING
TO THE NORTHEAST 8 TO 15 MPH IN THE LATE
MORNING AND EARLY AFTERNOON.
SMOKE DISPERSAL.....POOR EARLY IN THE MORNING INCREASING TO FAIR IN THE
AFTERNOON.
FORECASTER...SCHILD
REQUESTED BY...TYLER AND TRAVIS
TYPE OF REQUEST...WILDFIRE
.TAG 2618601.0/BIS
.DELDT 07/29/26
.FORMATTERVERSION 2.0.0
.EMAIL JEFFREY.SCHILD@NOAA.GOV,WATCHCENTER@ND.GOV
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