509
FNUS54 KHGX 210531
FWFHGX
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST TEXAS
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1231 AM CDT FRI AUG 21 2026
DISCUSSION
THE VERY HOT AND DRY PATTERN WILL CONTINUE. INLAND RH VALUES ARE
EXPECTED TO DROP INTO THE 25-40% RANGE, WITH VALUES ABOVE 50% NEAR
THE COAST. FUELS HAVE BECOME DRIER IN RECENT WEEKS DUE TO THE HOT
AND DRY CONDITIONS. HOWEVER, THERE MAY BE A FEW THUNDERSTORMS
DURING THE LATE AFTERNOON AND EVENING OURS ON FRIDAY AND SATURDAY,
WITH THE HIGHEST RISK OF RAIN OCCURRING IN OUR PINEY WOODS ZONES.
TXZ163-164-212115-
HOUSTON-TRINITY-
INCLUDING THE CITIES OF CROCKETT, GROVETON, AND TRINITY
1231 AM CDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 30 20
CHANCE OF THUNDER (%) 20 20 20
TEMP (24H TREND) 103 (+1) 76 (-1) 103
RH % (24H TREND) 31 (-4) 85 (-4) 31
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
MAX/MIN MIX HGT(M) 2640 3400
MAX/MIN MIX HGT(FT) 8650 11160
TRANSPORT WND (KTS) SE 5 NE 5
TRANSPORT WND (M/S) SE 3 NE 3
VENT RATE (M/S-M) 7920 10200
CATEGORY DAY 3 4
SUNSHINE HOURS 10 8
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
1231 AM CDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 20 20
CHANCE OF THUNDER (%) 0 20 20
TEMP (24H TREND) 103 (+1) 76 (-1) 104
RH % (24H TREND) 30 (-5) 87 (-6) 29
WIND 20FT/EARLY(MPH) SW 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
MAX/MIN MIX HGT(M) 2680 3620
MAX/MIN MIX HGT(FT) 8790 11890
TRANSPORT WND (KTS) SE 6 E 6
TRANSPORT WND (M/S) SE 3 E 3
VENT RATE (M/S-M) 8040 10860
CATEGORY DAY 4 4
SUNSHINE HOURS 11 10
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
1231 AM CDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 30 20
CHANCE OF THUNDER (%) 0 20 20
TEMP (24H TREND) 103 (+2) 75 (-2) 103
RH % (24H TREND) 32 (-6) 90 (-3) 31
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
MAX/MIN MIX HGT(M) 2630 3230
MAX/MIN MIX HGT(FT) 8630 10610
TRANSPORT WND (KTS) SE 5 NE 5
TRANSPORT WND (M/S) SE 3 NE 3
VENT RATE (M/S-M) 7890 9690
CATEGORY DAY 3 4
SUNSHINE HOURS 11 9
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
1231 AM CDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE TSTMS NONE
CHANCE PRECIP (%) 0 20 0
CHANCE OF THUNDER (%) 0 20 0
TEMP (24H TREND) 101 (+2) 76 (-2) 102
RH % (24H TREND) 33 (-14) 96 (+2) 33
WIND 20FT/EARLY(MPH) LGT/VAR S 6 LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
MAX/MIN MIX HGT(M) 2360 2780
MAX/MIN MIX HGT(FT) 7730 9110
TRANSPORT WND (KTS) S 5 SE 7
TRANSPORT WND (M/S) S 3 SE 4
VENT RATE (M/S-M) 7080 11120
CATEGORY DAY 3 4
SUNSHINE HOURS 11 10
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
1231 AM CDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 102 (+3) 75 (-2) 102
RH % (24H TREND) 31 (-15) 98 (+2) 29
WIND 20FT/EARLY(MPH) LGT/VAR S 6 LGT/VAR
WIND 20FT/LATE(MPH) S 5 LGT/VAR LGT/VAR
MAX/MIN MIX HGT(M) 2710 3140
MAX/MIN MIX HGT(FT) 8900 10290
TRANSPORT WND (KTS) S 8 SE 9
TRANSPORT WND (M/S) S 4 SE 5
VENT RATE (M/S-M) 10840 15700
CATEGORY DAY 4 4
SUNSHINE HOURS 10 10
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
1231 AM CDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 20 20
CHANCE OF THUNDER (%) 0 20 20
TEMP (24H TREND) 99 (+3) 77 (-2) 99
RH % (24H TREND) 42 (-14) 94 (+1) 42
WIND 20FT/EARLY(MPH) LGT/VAR S 6 LGT/VAR
WIND 20FT/LATE(MPH) S 5 LGT/VAR LGT/VAR
MAX/MIN MIX HGT(M) 2030 2260
MAX/MIN MIX HGT(FT) 6650 7410
TRANSPORT WND (KTS) S 5 NE 6
TRANSPORT WND (M/S) S 3 NE 3
VENT RATE (M/S-M) 6090 6780
CATEGORY DAY 3 3
SUNSHINE HOURS 11 10
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
1231 AM CDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 95 (+2) 76 (-3) 97
RH % (24H TREND) 51 (-11) 97 (+5) 47
WIND 20FT/EARLY(MPH) SW 5 S 7 LGT/VAR
WIND 20FT/LATE(MPH) S 9 LGT/VAR S 7
MAX/MIN MIX HGT(M) 1700 1770
MAX/MIN MIX HGT(FT) 5580 5810
TRANSPORT WND (KTS) S 8 S 8
TRANSPORT WND (M/S) S 4 S 4
VENT RATE (M/S-M) 6800 7080
CATEGORY DAY 3 3
SUNSHINE HOURS 9 10
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
1231 AM CDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 92 (+2) 80 (-3) 93
RH % (24H TREND) 63 (-8) 88 (+3) 61
WIND 20FT/EARLY(MPH) SW 8 SW 11 SW 6
WIND 20FT/LATE(MPH) S 10 SW 9 S 9
MAX/MIN MIX HGT(M) 1020 970
MAX/MIN MIX HGT(FT) 3360 3170
TRANSPORT WND (KTS) SW 9 SW 8
TRANSPORT WND (M/S) SW 5 SW 4
VENT RATE (M/S-M) 5100 3880
CATEGORY DAY 3 2
SUNSHINE HOURS 9 10
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 70S. HIGHS IN THE MID
90S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS AROUND 80. HIGHS IN THE MID 90S.
SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 70S. HIGHS IN THE MID
90S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 70S. HIGHS IN THE
MID 90S. SOUTH WINDS AROUND 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 70S. HIGHS IN THE MID
90S. SOUTH WINDS AROUND 5 MPH.
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