618
FNUS54 KHGX 211106
FWFHGX
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST TEXAS
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
606 AM CDT TUE APR 21 2026
DISCUSSION
SOUTHEASTERLY WINDS GENERALLY IN THE 10-15 MPH RANGE WILL PERSIST
FOR MOST OF THE WEEK. WITH CHANCES FOR SHOWERS AND THUNDERSTORMS
INCREASING TODAY AND PERSISTING THROUGH THE END OF THE WEEK,
MINIMUM
RH VALUES WILL REMAIN GENERALLY ABOVE 60%.
TXZ163-164-212115-
HOUSTON-TRINITY-
INCLUDING THE CITIES OF CROCKETT, GROVETON, AND TRINITY
606 AM CDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 30 70
CHANCE OF THUNDER (%) 50 30 50
TEMP (24H TREND) 65 (-8) 57 (+1) 79
RH % (24H TREND) 73 (+37) 100 (+9) 63
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SE 5 LGT/VAR SE 5
MAX/MIN MIX HGT(M) 780 1110
MAX/MIN MIX HGT(FT) 2570 3650
TRANSPORT WND (KTS) SE 14 S 10
TRANSPORT WND (M/S) SE 7 S 5
VENT RATE (M/S-M) 5460 5550
CATEGORY DAY 3 3
SUNSHINE HOURS 2 6
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ176-195>198-212115-
BRAZOS-BURLESON-GRIMES-MADISON-WASHINGTON-
INCLUDING THE CITIES OF BRENHAM, BRYAN, CALDWELL,
COLLEGE STATION, MADISONVILLE, NAVASOTA, AND SOMERVILLE
606 AM CDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 40 60
CHANCE OF THUNDER (%) 50 40 50
TEMP (24H TREND) 67 (-1) 58 (0) 80
RH % (24H TREND) 81 (+28) 100 (+2) 64
WIND 20FT/EARLY(MPH) E 6 SE 6 LGT/VAR
WIND 20FT/LATE(MPH) E 9 LGT/VAR SE 6
MAX/MIN MIX HGT(M) 580 1130
MAX/MIN MIX HGT(FT) 1890 3700
TRANSPORT WND (KTS) E 17 SE 11
TRANSPORT WND (M/S) E 9 SE 6
VENT RATE (M/S-M) 5220 6780
CATEGORY DAY 3 3
SUNSHINE HOURS 2 5
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ177>179-199-200-212115-
MONTGOMERY-NORTHERN LIBERTY-POLK-SAN JACINTO-WALKER-
INCLUDING THE CITIES OF CLEVELAND, COLDSPRING, CONROE, CORRIGAN,
DAYTON, HUNTSVILLE, LIBERTY, LIVINGSTON, SHEPHERD,
AND THE WOODLANDS
606 AM CDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 40 80
CHANCE OF THUNDER (%) 50 40 70
TEMP (24H TREND) 68 (-4) 58 (0) 80
RH % (24H TREND) 76 (+33) 100 (+9) 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) E 5 LGT/VAR SE 5
MAX/MIN MIX HGT(M) 700 1170
MAX/MIN MIX HGT(FT) 2280 3830
TRANSPORT WND (KTS) E 13 SE 10
TRANSPORT WND (M/S) E 7 SE 5
VENT RATE (M/S-M) 4900 5850
CATEGORY DAY 3 3
SUNSHINE HOURS 2 5
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ212-213-227-237-238-212115-
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
606 AM CDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 40 80
CHANCE OF THUNDER (%) 50 40 70
TEMP (24H TREND) 73 (+3) 62 (0) 81
RH % (24H TREND) 74 (+14) 100 (+7) 62
WIND 20FT/EARLY(MPH) E 7 E 6 LGT/VAR
WIND 20FT/LATE(MPH) E 10 G17 LGT/VAR SE 7
MAX/MIN MIX HGT(M) 1040 1110
MAX/MIN MIX HGT(FT) 3410 3660
TRANSPORT WND (KTS) E 17 SE 12
TRANSPORT WND (M/S) E 9 SE 6
VENT RATE (M/S-M) 9360 6660
CATEGORY DAY 4 3
SUNSHINE HOURS 3 5
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ210-211-226-235-236-212115-
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
606 AM CDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 30 70
CHANCE OF THUNDER (%) 50 30 50
TEMP (24H TREND) 74 (+5) 63 (+1) 82
RH % (24H TREND) 76 (+9) 100 (+1) 59
WIND 20FT/EARLY(MPH) E 8 G17 E 6 LGT/VAR
WIND 20FT/LATE(MPH) E 10 G17 LGT/VAR SE 7
MAX/MIN MIX HGT(M) 980 1120
MAX/MIN MIX HGT(FT) 3230 3670
TRANSPORT WND (KTS) SE 16 SE 10
TRANSPORT WND (M/S) SE 8 SE 5
VENT RATE (M/S-M) 7840 5600
CATEGORY DAY 3 3
SUNSHINE HOURS 3 5
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ214-300-313-338-212115-
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
606 AM CDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 50 80
CHANCE OF THUNDER (%) 50 50 70
TEMP (24H TREND) 74 (+2) 62 (-1) 79
RH % (24H TREND) 68 (+15) 100 (+14) 67
WIND 20FT/EARLY(MPH) E 7 E 7 SE 6
WIND 20FT/LATE(MPH) E 10 LGT/VAR SE 9
MAX/MIN MIX HGT(M) 1060 1050
MAX/MIN MIX HGT(FT) 3490 3440
TRANSPORT WND (KTS) E 16 SE 12
TRANSPORT WND (M/S) E 8 SE 6
VENT RATE (M/S-M) 8480 6300
CATEGORY DAY 4 3
SUNSHINE HOURS 3 6
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ335>337-212115-
COASTAL BRAZORIA-COASTAL JACKSON-COASTAL MATAGORDA-
INCLUDING THE CITIES OF CLUTE, FREEPORT, LAKE JACKSON,
AND PALACIOS
606 AM CDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 30 60
CHANCE OF THUNDER (%) 50 30 50
TEMP (24H TREND) 76 (+4) 67 (+1) 82
RH % (24H TREND) 72 (+4) 100 (+6) 66
WIND 20FT/EARLY(MPH) E 10 SE 8 SE 6
WIND 20FT/LATE(MPH) SE 12 SE 5 SE 9
MAX/MIN MIX HGT(M) 1060 1060
MAX/MIN MIX HGT(FT) 3460 3490
TRANSPORT WND (KTS) SE 17 SE 12
TRANSPORT WND (M/S) SE 9 SE 6
VENT RATE (M/S-M) 9540 6360
CATEGORY DAY 4 3
SUNSHINE HOURS 3 6
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ436>439-212115-
BOLIVAR PENINSULA-BRAZORIA ISLANDS-GALVESTON ISLAND-
MATAGORDA ISLANDS-
INCLUDING THE CITIES OF GALVESTON AND SURFSIDE BEACH
606 AM CDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 40 70
CHANCE OF THUNDER (%) 50 40 50
TEMP (24H TREND) 75 (+2) 69 (0) 79
RH % (24H TREND) 71 (+8) 97 (+14) 74
WIND 20FT/EARLY(MPH) SE 12 SE 11 SE 8
WIND 20FT/LATE(MPH) E 13 SE 9 SE 10
MAX/MIN MIX HGT(M) 1090 930
MAX/MIN MIX HGT(FT) 3570 3040
TRANSPORT WND (KTS) SE 18 SE 12
TRANSPORT WND (M/S) SE 9 SE 6
VENT RATE (M/S-M) 9810 5580
CATEGORY DAY 4 3
SUNSHINE HOURS 4 6
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY
PARTLY 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. SOUTH WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 70S. HIGHS IN THE MID
80S. SOUTH WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 70S. HIGHS IN THE MID
80S. SOUTH WINDS AROUND 10 MPH.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page