655
FNUS74 KLIX 181906
FWSLIX
SPOT FORECAST FOR ROSELAND EVENT...TANGIPAHOA PARISH EM
NATIONAL WEATHER SERVICE NEW ORLEANS LA
206 PM CDT SAT OCT 18 2025
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
WE CAN BE REACHED AT (985) 649-0357 IF YOU HAVE QUESTIONS OR CONCERNS
WITH THIS FORECAST.
DISCUSSION
HIGH PRESSURE HAS MOVED EAST OF THE AREA WITH RELATIVE HUMIDITIES
MODERATING. MINIMUM RH VALUES WILL LIKELY BE AROUND 60 PERCENT FOR
MOST OF THE AREA TODAY. A COLD FRONT IS EXPECTED TO MOVE THROUGH
THE AREA LATE TONIGHT INTO SUNDAY MORNING. SHOWERS AND
THUNDERSTORMS ARE EXPECTED TO ACCOMPANY THE FRONT, BUT AREAL
AVERAGE RAINFALL AMOUNTS ARE EXPECTED TO REMAIN BELOW ONE INCH
ACROSS MOST OR ALL OF THE AREA. DRIER WEATHER IS AGAIN EXPECTED
BEHIND THIS FRONTAL PASSAGE, WITH MINIMUM RH VALUES NEAR
40 PERCENT SUNDAY AFTERNOON. MONDAY HAS THE LOWEST POTENTIAL
MIN RH VALUES WITH LIT REACHING THE LOW 30S TO POSSIBLY CRITICAL
VALUES.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). SLIGHT CHANCE OF
SHOWERS LATE IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE DAY. CHANCE OF
SHOWERS LATE IN THE AFTERNOON.
CHANCE OF PCPN......50 PERCENT.
MAX TEMPERATURE.....AROUND 86.
MIN HUMIDITY........63 PERCENT.
MAX APPARENT TEMP...92.
SURFACE WINDS (MPH).SOUTH WINDS 14 TO 16 MPH.
MIXING HEIGHT (M)...1036-1250 METERS AGL.
TRANSPORT WINDS.....SOUTH 16 TO 17 MPH.
TRANSPORT WINDS M/S.SOUTH 7 TO 8 METERS/SECOND.
CEILING (KFT).......8.5 INCREASING TO 9.5 LATE IN THE AFTERNOON.
WIND (20 FT)........SOUTH WINDS 12 TO 14 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS.
TIME (CDT) 3PM 4PM 5PM
SKY (%).........38 59 62
WEATHER COV.....SCH CHC CHC
WEATHER TYPE....RW RW RW
TSTM COV........SCH SCH SCH
CHC OF PCPN (%).20 30 50
TEMP............86 84 83
RH..............63 65 67
APARNT TMP (F)..92 89 88
20 FT WIND DIR..S SSE SSE
20 FT WIND SPD..16 15 14
20 FT WIND GUST.23 22 22
SURFACE WND DIR.S SSE SSE
SURFACE WND SPD.16 15 14
SURFACE WND GST.23 22 22
MIX HGT (KM)....1.2 1.0 1.0
TRANSP WIND DIR.S S S
TRANSP WIND SPD.16 17 17
TRANS WIND DIR..S S S
TRANS SPD (M/S).7 8 8
CEILING (KFT)...8.5 8.5 9.5
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SHOWERS LIKELY
IN THE EVENING. CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. SHOWERS OVERNIGHT.
CHANCE OF PCPN......90 PERCENT.
MIN TEMPERATURE.....AROUND 68.
MAX HUMIDITY........100 PERCENT.
MAX APPARENT TEMP...85.
SURFACE WINDS (MPH).SOUTHWEST WINDS 6 TO 14 MPH SHIFTING TO THE
WEST AROUND 7 MPH AFTER 3 AM.
MIXING HEIGHT (M)...183-1036 METERS AGL.
TRANSPORT WINDS.....SOUTH 13 TO 17 MPH SHIFTING TO THE WEST AROUND
9 MPH AFTER 3 AM.
TRANSPORT WINDS M/S.SOUTH AROUND 8 METERS/SECOND SHIFTING TO THE
WEST AROUND 4 METERS/SECOND AFTER 3 AM.
CEILING (KFT).......8.5 DECREASING TO 5.8 EARLY IN THE EVENING,
THEN INCREASING TO 9.5 EARLY IN THE EVENING
DECREASING TO 5.8 LATE IN THE EVENING
DECREASING TO 3.5 DECREASING TO 1.8 OVERNIGHT
DECREASING TO 0.7 DECREASING TO 0.5 AFTER 3 AM
DECREASING TO 0.3.
WIND (20 FT)........SOUTH WINDS 5 TO 12 MPH SHIFTING TO THE WEST
AROUND 6 MPH AFTER 3 AM. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE
EVENING. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS IN THE LATE EVENING AND
OVERNIGHT. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS AFTER 3 AM.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........63 77 70 70 72 62 69 81 62 79 80 66
WEATHER COV.....LKY CHC CHC CHC CHC CHC LKY DEF DEF DEF CHC SCH
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........SCH CHC CHC CHC CHC CHC CHC SCH SCH
CHC OF PCPN (%).60 50 50 40 40 40 60 80 90 80 50 20
TEMP............81 77 74 74 73 73 72 73 71 71 71 70
RH..............74 85 93 93 100 97 100 97 100 100 100 100
APARNT TMP (F)..85 77 74 74 73 73 72 73 71 71 71 70
20 FT WIND DIR..S SSE SSE S S S S S SW WSW WSW W
20 FT WIND SPD..14 10 12 10 10 9 7 6 6 7 7 7
20 FT WIND GUST.22 20 20 20 18 18 17 15 16 16 15 15
SURFACE WND DIR.S SSE SSE S S S S S SW WSW WSW W
SURFACE WND SPD.14 10 12 10 10 9 7 6 6 7 7 7
SURFACE WND GST.22 20 20 20 18 18 17 15 16 16 15 15
MIX HGT (KM)....1.0 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
TRANSP WIND DIR.S S S S S S S SW SW SW W W
TRANSP WIND SPD.17 13 13 13 15 15 15 14 14 14 9 9
TRANS WIND DIR..S S S S S S S SW SW SW W W
TRANS SPD (M/S).8 6 6 6 7 7 7 6 6 6 4 4
CEILING (KFT)...8.5 5.8 9.5 5.8 5.8 3.5 3.5 1.8 1.8 0.7 0.5 0.3
SUNDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 81.
MIN HUMIDITY........45 PERCENT.
MAX APPARENT TEMP...79.
SURFACE WINDS (MPH).NORTH WINDS 7 TO 16 MPH SHIFTING TO THE 14 TO
16 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT (M)...152-1250 METERS AGL.
TRANSPORT WINDS.....NORTHWEST 9 TO 15 MPH SHIFTING TO THE NORTH 16
TO 20 MPH IN THE LATE MORNING AND AFTERNOON.
TRANSPORT WINDS M/S.NORTH 7 TO 9 METERS/SECOND.
CEILING (KFT).......0.2 INCREASING TO 25.
WIND (20 FT)........NORTHWEST WINDS 6 TO 14 MPH SHIFTING TO THE
NORTH 12 TO 14 MPH LATE IN THE AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........43 31 21 14 46 31 27 10 8 4 5 4
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 10 0 0 0 0 0 0 0 0 0 0
TEMP............70 69 68 70 73 75 78 79 78 79 77 76
RH..............100 100 100 100 87 76 62 54 50 45 45 45
APARNT TMP (F)..70 69 68 70 73 75 78 79 78 79 77 76
20 FT WIND DIR..WNW NW NW NNW NNW NNW NNW NNW NNW N N N
20 FT WIND SPD..7 7 10 13 14 15 15 15 16 16 15 14
20 FT WIND GUST.15 15 16 18 18 18 21 20 23 23 22 21
SURFACE WND DIR.WNW NW NW NNW NNW NNW NNW NNW NNW N N N
SURFACE WND SPD.7 7 10 13 14 15 15 15 16 16 15 14
SURFACE WND GST.15 15 16 18 18 18 21 20 23 23 22 21
MIX HGT (KM)....0.2 0.2 0.2 0.2 0.7 0.7 0.7 1.2 1.2 1.2 1.2 1.2
TRANSP WIND DIR.W NW NW NW N N N N N N N N
TRANSP WIND SPD.9 15 15 15 20 20 20 20 20 20 16 16
TRANS WIND DIR..W NW NW NW N N N N N N N N
TRANS SPD (M/S).4 7 7 7 9 9 9 9 9 9 7 7
CEILING (KFT)...0.2 0.2 0.2 1.8 25 25 25 25 25 25 25 25
FORECASTER...LIM
REQUESTED BY...DAWSON PRIMES
TYPE OF REQUEST...HAZMAT
.TAG 2523508.5/LIX
.DELDT 10/18/25
.FORMATTERVERSION 2.0.0
.EMAIL SCHROEDER.HOPE@EPA.GOV,SR-LIX.FORECASTERS@NOAA.GOV,DAWSON.PRIMES@TANGIPAHOA.ORG,VTRAVIS@TANGIPAHOA.ORG
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