813
FNUS54 KHGX 200630
FWFHGX
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST TEXAS
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
130 AM CDT MON APR 20 2026
DISCUSSION
NORTHEASTERLY WINDS WILL TRANSITION TO EASTERLY BY MONDAY MORNING
AND SOUTHEASTERLY BY LATE MONDAY 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.
TXZ163-164-202115-
HOUSTON-TRINITY-
INCLUDING THE CITIES OF CROCKETT, GROVETON, AND TRINITY
130 AM CDT MON APR 20 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS TSTMS
CHANCE PRECIP (%) 0 40 70
CHANCE OF THUNDER (%) 0 0 50
TEMP (24H TREND) 74 (+3) 53 (+3) 66
RH % (24H TREND) 30 (-1) 94 (+20) 70
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR E 5
MAX/MIN MIX HGT(M) 1460 780
MAX/MIN MIX HGT(FT) 4800 2570
TRANSPORT WND (KTS) SE 8 SE 15
TRANSPORT WND (M/S) SE 4 SE 8
VENT RATE (M/S-M) 5840 6240
CATEGORY DAY 3 3
SUNSHINE HOURS 5 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ176-195>198-202115-
BRAZOS-BURLESON-GRIMES-MADISON-WASHINGTON-
INCLUDING THE CITIES OF BRENHAM, BRYAN, CALDWELL,
COLLEGE STATION, MADISONVILLE, NAVASOTA, AND SOMERVILLE
130 AM CDT MON APR 20 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 30 70 80
CHANCE OF THUNDER (%) 0 20 50
TEMP (24H TREND) 70 (-1) 56 (+2) 68
RH % (24H TREND) 43 (+8) 97 (+27) 75
WIND 20FT/EARLY(MPH) E 5 LGT/VAR E 6
WIND 20FT/LATE(MPH) E 5 LGT/VAR E 8
MAX/MIN MIX HGT(M) 1190 680
MAX/MIN MIX HGT(FT) 3910 2220
TRANSPORT WND (KTS) E 10 SE 17
TRANSPORT WND (M/S) E 5 SE 9
VENT RATE (M/S-M) 5950 6120
CATEGORY DAY 3 3
SUNSHINE HOURS 2 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ177>179-199-200-202115-
MONTGOMERY-NORTHERN LIBERTY-POLK-SAN JACINTO-WALKER-
INCLUDING THE CITIES OF CLEVELAND, COLDSPRING, CONROE, CORRIGAN,
DAYTON, HUNTSVILLE, LIBERTY, LIVINGSTON, SHEPHERD,
AND THE WOODLANDS
130 AM CDT MON APR 20 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 50 80
CHANCE OF THUNDER (%) 0 0 50
TEMP (24H TREND) 74 (+3) 55 (+2) 70
RH % (24H TREND) 33 (-2) 92 (+21) 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR E 6
MAX/MIN MIX HGT(M) 1450 740
MAX/MIN MIX HGT(FT) 4750 2410
TRANSPORT WND (KTS) E 8 E 15
TRANSPORT WND (M/S) E 4 E 8
VENT RATE (M/S-M) 5800 5920
CATEGORY DAY 3 3
SUNSHINE HOURS 3 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ212-213-227-237-238-202115-
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
130 AM CDT MON APR 20 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 40 60 80
CHANCE OF THUNDER (%) 0 20 50
TEMP (24H TREND) 71 (+3) 59 (+1) 73
RH % (24H TREND) 52 (+7) 95 (+21) 71
WIND 20FT/EARLY(MPH) E 8 LGT/VAR E 6
WIND 20FT/LATE(MPH) E 8 LGT/VAR E 10
MAX/MIN MIX HGT(M) 1100 860
MAX/MIN MIX HGT(FT) 3600 2830
TRANSPORT WND (KTS) E 12 E 14
TRANSPORT WND (M/S) E 6 E 7
VENT RATE (M/S-M) 6600 6020
CATEGORY DAY 3 3
SUNSHINE HOURS 2 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ210-211-226-235-236-202115-
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
130 AM CDT MON APR 20 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 60 60 70
CHANCE OF THUNDER (%) 0 20 50
TEMP (24H TREND) 69 (+2) 59 (+1) 76
RH % (24H TREND) 62 (+14) 97 (+19) 71
WIND 20FT/EARLY(MPH) NE 8 E 5 E 7
WIND 20FT/LATE(MPH) E 9 LGT/VAR E 10
MAX/MIN MIX HGT(M) 1030 980
MAX/MIN MIX HGT(FT) 3390 3200
TRANSPORT WND (KTS) E 13 E 16
TRANSPORT WND (M/S) E 7 E 8
VENT RATE (M/S-M) 7210 7840
CATEGORY DAY 3 3
SUNSHINE HOURS 1 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ214-300-313-338-202115-
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
130 AM CDT MON APR 20 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 40 70
CHANCE OF THUNDER (%) 0 0 50
TEMP (24H TREND) 74 (+6) 59 (+2) 74
RH % (24H TREND) 47 (+1) 87 (+14) 65
WIND 20FT/EARLY(MPH) E 9 E 6 E 7
WIND 20FT/LATE(MPH) E 9 E 5 E 10
MAX/MIN MIX HGT(M) 1190 1050
MAX/MIN MIX HGT(FT) 3910 3440
TRANSPORT WND (KTS) E 12 E 13
TRANSPORT WND (M/S) E 6 E 7
VENT RATE (M/S-M) 7140 7350
CATEGORY DAY 3 3
SUNSHINE HOURS 3 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ335>337-202115-
COASTAL BRAZORIA-COASTAL JACKSON-COASTAL MATAGORDA-
INCLUDING THE CITIES OF CLUTE, FREEPORT, LAKE JACKSON,
AND PALACIOS
130 AM CDT MON APR 20 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 50 50 70
CHANCE OF THUNDER (%) 0 20 50
TEMP (24H TREND) 72 (+5) 63 (+2) 76
RH % (24H TREND) 60 (+4) 93 (+11) 70
WIND 20FT/EARLY(MPH) E 11 E 9 E 10
WIND 20FT/LATE(MPH) E 13 E 8 SE 13
MAX/MIN MIX HGT(M) 1130 1020
MAX/MIN MIX HGT(FT) 3700 3330
TRANSPORT WND (KTS) E 15 SE 16
TRANSPORT WND (M/S) E 8 SE 8
VENT RATE (M/S-M) 9040 8160
CATEGORY DAY 4 4
SUNSHINE HOURS 2 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ436>439-202115-
BOLIVAR PENINSULA-BRAZORIA ISLANDS-GALVESTON ISLAND-
MATAGORDA ISLANDS-
INCLUDING THE CITIES OF GALVESTON AND SURFSIDE BEACH
130 AM CDT MON APR 20 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 40 50 70
CHANCE OF THUNDER (%) 0 20 50
TEMP (24H TREND) 73 (+5) 67 (+1) 76
RH % (24H TREND) 56 (0) 85 (+15) 68
WIND 20FT/EARLY(MPH) E 15 E 13 SE 13
WIND 20FT/LATE(MPH) E 14 SE 12 SE 14
MAX/MIN MIX HGT(M) 1210 1030
MAX/MIN MIX HGT(FT) 3960 3360
TRANSPORT WND (KTS) E 16 SE 18
TRANSPORT WND (M/S) E 8 SE 9
VENT RATE (M/S-M) 9680 9270
CATEGORY DAY 4 4
SUNSHINE HOURS 2 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLOUDY. SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE UPPER 70S. EAST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. HIGHS AROUND
80. 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
LOWER 80S. SOUTHEAST WINDS 5 TO 10 MPH.
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