053
FNUS54 KHGX 202009
FWFHGX
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST TEXAS
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
309 PM CDT MON APR 20 2026
DISCUSSION
EASTERLY WINDS ARE GRADUALLY BECOMING SOUTHEASTERLY THIS AFTERNOON.
EXPECT MINIMUM RH VALUES IN THE 40-60% RANGE ON MONDAY. CHANCES FOR RAIN SHOWERS
INCREASE
FROM WEST TO EAST THROUGHOUT THE DAY ON MONDAY WITH CHANCES FOR
THUNDERSTORMS RETURNING TUESDAY INTO WEDNESDAY. THE INCREASED
MOISTURE WILL KEEP MINIMUM RH VALUES GENERALLY ABOVE 60% THROUGH
THE REMAINDER OF THE WORK WEEK.
TXZ163-164-210930-
HOUSTON-TRINITY-
INCLUDING THE CITIES OF CROCKETT, GROVETON, AND TRINITY
309 PM CDT MON APR 20 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 80 30 60
CHANCE OF THUNDER (%) 0 50 30 50
TEMP (24H TREND) 54 (+4) 66 (-7) 57 78
RH % (24H TREND) 99 (+25) 74 (+38) 100 70
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR SE 5 LGT/VAR SE 5
MAX/MIN MIX HGT(M) 860 1220
MAX/MIN MIX HGT(FT) 2810 4010
TRANSPORT WND (KTS) SE 17 S 12
TRANSPORT WND (M/S) SE 9 S 6
VENT RATE (M/S-M) 7740 7320
CATEGORY DAY 3 3
SUNSHINE HOURS 2 5
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ176-195>198-210930-
BRAZOS-BURLESON-GRIMES-MADISON-WASHINGTON-
INCLUDING THE CITIES OF BRENHAM, BRYAN, CALDWELL,
COLLEGE STATION, MADISONVILLE, NAVASOTA, AND SOMERVILLE
309 PM CDT MON APR 20 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 80 40 60
CHANCE OF THUNDER (%) 50 50 40 50
TEMP (24H TREND) 57 (+3) 68 (0) 60 79
RH % (24H TREND) 100 (+30) 81 (+28) 100 71
WIND 20FT/EARLY(MPH) LGT/VAR E 6 SE 5 LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR SE 9 LGT/VAR SE 6
MAX/MIN MIX HGT(M) 700 1140
MAX/MIN MIX HGT(FT) 2310 3730
TRANSPORT WND (KTS) SE 18 S 10
TRANSPORT WND (M/S) SE 9 S 5
VENT RATE (M/S-M) 6300 5700
CATEGORY DAY 3 3
SUNSHINE HOURS 2 4
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ177>179-199-200-210930-
MONTGOMERY-NORTHERN LIBERTY-POLK-SAN JACINTO-WALKER-
INCLUDING THE CITIES OF CLEVELAND, COLDSPRING, CONROE, CORRIGAN,
DAYTON, HUNTSVILLE, LIBERTY, LIVINGSTON, SHEPHERD,
AND THE WOODLANDS
309 PM CDT MON APR 20 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 80 40 70
CHANCE OF THUNDER (%) 20 50 40 70
TEMP (24H TREND) 56 (+3) 69 (-3) 59 78
RH % (24H TREND) 96 (+25) 73 (+30) 100 73
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR SE 6 LGT/VAR SE 5
MAX/MIN MIX HGT(M) 820 1200
MAX/MIN MIX HGT(FT) 2700 3940
TRANSPORT WND (KTS) SE 15 SE 12
TRANSPORT WND (M/S) SE 8 SE 6
VENT RATE (M/S-M) 6560 7200
CATEGORY DAY 3 3
SUNSHINE HOURS 2 4
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ212-213-227-237-238-210930-
FORT BEND-INLAND BRAZORIA-INLAND GALVESTON-INLAND HARRIS-WALLER-
INCLUDING THE CITIES OF ALVIN, ANGLETON, BROOKSHIRE,
FIRST COLONY, FRIENDSWOOD, HEMPSTEAD, HOUSTON, LEAGUE CITY,
MISSION BEND, MISSOURI CITY, PEARLAND, PECAN GROVE, PRAIRIE VIEW,
ROSENBERG, SUGAR LAND, AND WALLER
309 PM CDT MON APR 20 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 70 50 80
CHANCE OF THUNDER (%) 50 50 50 50
TEMP (24H TREND) 60 (+2) 73 (+3) 63 80
RH % (24H TREND) 97 (+24) 74 (+14) 99 69
WIND 20FT/EARLY(MPH) E 5 E 7 E 6 LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR E 10 G17 LGT/VAR SE 7
MAX/MIN MIX HGT(M) 840 1160
MAX/MIN MIX HGT(FT) 2760 3810
TRANSPORT WND (KTS) E 16 SE 12
TRANSPORT WND (M/S) E 8 SE 6
VENT RATE (M/S-M) 6720 6960
CATEGORY DAY 3 3
SUNSHINE HOURS 2 4
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ210-211-226-235-236-210930-
AUSTIN-COLORADO-INLAND JACKSON-INLAND MATAGORDA-WHARTON-
INCLUDING THE CITIES OF BAY CITY, BELLVILLE, COLUMBUS,
EAGLE LAKE, EDNA, EL CAMPO, GANADO, SEALY, WEIMAR, AND WHARTON
309 PM CDT MON APR 20 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 60 40 70
CHANCE OF THUNDER (%) 50 50 40 50
TEMP (24H TREND) 59 (+1) 76 (+7) 63 82
RH % (24H TREND) 100 (+23) 74 (+7) 100 65
WIND 20FT/EARLY(MPH) E 5 E 8 G17 E 7 LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR E 11 G18 LGT/VAR SE 7
MAX/MIN MIX HGT(M) 990 1260
MAX/MIN MIX HGT(FT) 3250 4120
TRANSPORT WND (KTS) E 16 SE 10
TRANSPORT WND (M/S) E 8 SE 5
VENT RATE (M/S-M) 7920 6300
CATEGORY DAY 3 3
SUNSHINE HOURS 2 4
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ214-300-313-338-210930-
CHAMBERS-COASTAL GALVESTON-COASTAL HARRIS-SOUTHERN LIBERTY-
INCLUDING THE CITIES OF ANAHUAC, BAYTOWN, DEVERS, DICKINSON,
LA MARQUE, MONT BELVIEU, OLD RIVER-WINFREE, PASADENA, STOWELL,
TEXAS CITY, AND WINNIE
309 PM CDT MON APR 20 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 70 50 80
CHANCE OF THUNDER (%) 0 50 50 70
TEMP (24H TREND) 60 (+3) 74 (+2) 63 78
RH % (24H TREND) 89 (+16) 68 (+15) 100 74
WIND 20FT/EARLY(MPH) E 6 E 7 E 7 SE 6
WIND 20FT/LATE(MPH) E 5 E 11 SE 5 SE 10
MAX/MIN MIX HGT(M) 980 1040
MAX/MIN MIX HGT(FT) 3200 3430
TRANSPORT WND (KTS) SE 16 SE 14
TRANSPORT WND (M/S) SE 8 SE 7
VENT RATE (M/S-M) 7840 7280
CATEGORY DAY 3 3
SUNSHINE HOURS 2 4
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ335>337-210930-
COASTAL BRAZORIA-COASTAL JACKSON-COASTAL MATAGORDA-
INCLUDING THE CITIES OF CLUTE, FREEPORT, LAKE JACKSON,
AND PALACIOS
309 PM CDT MON APR 20 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 50 50 70
CHANCE OF THUNDER (%) 50 50 50 50
TEMP (24H TREND) 65 (+4) 77 (+5) 68 81
RH % (24H TREND) 91 (+10) 71 (+3) 98 69
WIND 20FT/EARLY(MPH) E 9 E 11 G18 SE 9 SE 6
WIND 20FT/LATE(MPH) E 8 E 13 SE 6 SE 10
MAX/MIN MIX HGT(M) 1020 1090
MAX/MIN MIX HGT(FT) 3330 3570
TRANSPORT WND (KTS) SE 17 SE 12
TRANSPORT WND (M/S) SE 9 SE 6
VENT RATE (M/S-M) 9180 6540
CATEGORY DAY 4 3
SUNSHINE HOURS 2 5
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ436>439-210930-
BOLIVAR PENINSULA-BRAZORIA ISLANDS-GALVESTON ISLAND-
MATAGORDA ISLANDS-
INCLUDING THE CITIES OF GALVESTON AND SURFSIDE BEACH
309 PM CDT MON APR 20 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 60 60 70
CHANCE OF THUNDER (%) 20 50 50 50
TEMP (24H TREND) 67 (+1) 76 (+3) 69 78
RH % (24H TREND) 82 (+12) 68 (+5) 91 75
WIND 20FT/EARLY(MPH) E 13 E 13 SE 13 SE 9
WIND 20FT/LATE(MPH) SE 12 E 14 SE 10 SE 11
MAX/MIN MIX HGT(M) 1020 890
MAX/MIN MIX HGT(FT) 3360 2910
TRANSPORT WND (KTS) SE 18 SE 13
TRANSPORT WND (M/S) SE 9 SE 7
VENT RATE (M/S-M) 9180 6230
CATEGORY DAY 4 3
SUNSHINE HOURS 3 5
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. HIGHS IN THE
LOWER 80S. SOUTHEAST WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 70S. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 70S. HIGHS IN THE
LOWER 80S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 70S. HIGHS IN THE MID
80S. SOUTHEAST WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 70S. HIGHS IN THE MID
80S. SOUTH WINDS AROUND 10 MPH.
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