954
FNUS74 KBRO 011507
FWSBRO
SPOT FORECAST FOR SAN FRANCISCO BANCO...USFWS
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1007 AM CDT THU OCT 1 2026
FORECAST IS BASED ON FORECAST START TIME OF 1000 CDT ON OCTOBER 01.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
RELATIVE HUMIDITY VALUES ARE EXPECTED TO DROP INTO
THE MID 40S THIS AFTERNOON WITH SOUTHEASTERLY WINDS GUSTING
OCCASIONALLY TO 25 MPH. THE CHANCE OF SHOWERS AND THUNDERSTORMS
INCREASES INTO THE AFTERNOON AND EVENING, BRINGING ERRATIC WINDS
NEAR ANY SHOWER OR THUNDERSTORM, AND A CHANCE OF CLOUD TO GROUND
LIGHTNING. THE CHANCE OF SHOWERS WITH HEAVY RAINFALL INCREASES
TONIGHT INTO FRIDAY, WITH HUMIDITY VALUES EXPECTED TO REMAIN
ELEVATED.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (55-75 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY IN THE
AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS
LATE IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 103.
MIN HUMIDITY........43 PERCENT.
EYE LEVEL WINDS.....SOUTHEAST WINDS 5 TO 10 MPH.
WIND (20 FT)........SOUTHEAST WINDS 8 TO 12 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS LATE IN THE
AFTERNOON.
MIXING HEIGHT.......7300 FT AGL.
TRANSPORT WINDS.....SOUTH 12 TO 18 MPH.
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........50 41 65 66 77 75 79 71
WEATHER COV..... SCH CHC CHC CHC
WEATHER TYPE.... RW RW RW RW
TSTM COV........ SCH CHC CHC CHC
TEMP............91 94 98 100 101 102 100 98
RH..............68 62 53 48 46 43 46 51
20 FT WIND DIR..SE S S S SE SE SE SE
20 FT WIND SPD..10 12 12 10 9 9 9 9
20 FT WIND GUST.21 21 21 20 18 17 18 18
EYE LVL WND DIR.SE S S S SE SE SE SE
EYE LVL WND SPD.6 7 7 6 5 5 5 5
EYE LVL WND GST.13 13 13 12 11 10 11 11
MIX HGT (KFT)...4.1 5.0 5.9 6.6 7.1 7.3 7.1 6.3
TRANSP WIND DIR.S S S S S S SE SE
TRANSP WIND SPD.18 18 16 15 13 12 12 14
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SHOWERS AND
CHANCE OF THUNDERSTORMS.
MIN TEMPERATURE.....AROUND 77.
MAX HUMIDITY........96 PERCENT.
EYE LEVEL WINDS.....SOUTHEAST WINDS UP TO 5 MPH WITH GUSTS TO
AROUND 12 MPH EARLY IN THE EVENING BECOMING
LIGHT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 7 MPH WITH GUSTS TO AROUND
20 MPH EARLY IN THE EVENING BECOMING LIGHT.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS IN THE EVENING AND OVERNIGHT.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS AFTER 3 AM.
MIXING HEIGHT.......1400 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 9 TO 15 MPH.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........89 89 87 87 93 91 89 83 89 71 72 66
WEATHER COV.....LKY LKY LKY DEF DEF DEF LKY DEF DEF LKY CHC DEF
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC SCH SCH
TEMP............94 89 86 84 84 83 82 81 81 79 79 78
RH..............59 72 77 80 81 84 85 87 88 89 89 91
20 FT WIND DIR..E SE SE SE SE SE N S E SE SE SE
20 FT WIND SPD..8 8 7 5 3 1 0 2 2 2 3 3
20 FT WIND GUST.20 18 17 15 12 10 8 8 9 9 10 10
EYE LVL WND DIR.E SE SE SE SE SE N S E SE SE SE
EYE LVL WND SPD.5 5 4 3 2 1 0 1 1 1 2 2
EYE LVL WND GST.12 11 10 9 7 6 5 5 5 5 6 6
MIX HGT (KFT)...5.2 4.1 3.3 2.7 2.3 1.9 1.7 1.6 1.6 1.6 1.6 1.4
TRANSP WIND DIR.SE E SE SE SE SE SE S SE SE SE SE
TRANSP WIND SPD.15 15 15 14 14 14 14 12 12 10 10 9
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. SHOWERS LIKELY
THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
MAX TEMPERATURE.....AROUND 92.
MIN HUMIDITY........61 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING NORTHEAST UP TO 4 MPH LATE
IN THE MORNING.
WIND (20 FT)........NORTHEAST WINDS 5 TO 6 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING NORTHEAST 5 TO 6
MPH LATE IN THE MORNING. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE
MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE MORNING. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN
THE AFTERNOON.
MIXING HEIGHT.......2000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 9 TO 13 MPH SHIFTING TO THE NORTHEAST
10 TO 12 MPH IN THE AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........68 74 69 62 81 77 78 80 82 89 83 75
WEATHER COV.....LKY SCH SCH CHC CHC LKY CHC CHC CHC LKY LKY LKY
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........SCH SCH SCH SCH CHC CHC CHC CHC CHC
TEMP............78 77 77 80 84 86 88 89 91 90 90 89
RH..............91 92 96 95 84 78 72 68 62 61 61 64
20 FT WIND DIR..SE E E E E E NE NE NE NE NE NE
20 FT WIND SPD..2 2 2 3 3 5 5 5 5 6 6 6
20 FT WIND GUST.9 9 8 8 9 9 9 9 10 12 13 14
EYE LVL WND DIR.SE E E E E E NE NE NE NE NE NE
EYE LVL WND SPD.1 1 1 2 2 3 3 3 3 4 4 4
EYE LVL WND GST.5 5 5 5 5 5 5 5 6 7 8 8
MIX HGT (KFT)...1.1 1.0 0.9 1.0 1.1 1.1 1.1 1.2 1.5 1.8 2.0 1.6
TRANSP WIND DIR.SE SE SE SE SE S SE E E N E N
TRANSP WIND SPD.9 9 12 13 12 12 10 10 10 10 12 10
FORECASTER...HALLMAN
REQUESTED BY...MIKE LERMA
TYPE OF REQUEST...WILDFIRE
.TAG 2622807.1/BRO
.DELDT 10/01/26
.FORMATTERVERSION 2.0.0
.EMAIL ISMAEL_LERMA@FWS.GOV,LETY_HANDY@FWS.GOV
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