610
FNUS54 KHGX 201103
FWFHGX
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST TEXAS
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
603 AM CDT WED MAY 20 2026
DISCUSSION
SHOWERS AND THUNDERSTORM ACTIVITY WILL GRADUALLY DIMINISH AS THE
MORNING PROGRESSES. LOCALLY HEAVY RAINFALL IS LIKELY THIS MORNING
NEAR THE COAST. ADDITIONAL ROUNDS OF SHOWERS AND THUNDERSTORMS ARE
EXPECTED LATER TONIGHT THROUGH THE WEEKEND. THEY WILL BE
DIFFICULT TO TIME BEYOND ABOUT 12-24 HOURS OUT. STORMS COULD BE
STRONG AT TIMES AND RAINFALL LOCALLY HEAVY. THE NEXT DISTURBANCE
COMING IN FROM THE WEST IS EXPECTED EITHER LATE TONIGHT OR
THURSDAY.
TXZ163-164-202130-
HOUSTON-TRINITY-
INCLUDING THE CITIES OF CROCKETT, GROVETON, AND TRINITY
603 AM CDT WED MAY 20 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 40 90
CHANCE OF THUNDER (%) 30 40 90
TEMP (24H TREND) 81 (-8) 68 (+2) 80
RH % (24H TREND) 68 (+7) 100 (0) 74
WIND 20FT/EARLY(MPH) NE 5 G17 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
MAX/MIN MIX HGT(M) 1010 940
MAX/MIN MIX HGT(FT) 3300 3070
TRANSPORT WND (KTS) E 6 SE 6
TRANSPORT WND (M/S) E 3 SE 3
VENT RATE (M/S-M) 3030 2820
CATEGORY DAY 2 2
SUNSHINE HOURS 2 1
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ176-195>198-202130-
BRAZOS-BURLESON-GRIMES-MADISON-WASHINGTON-
INCLUDING THE CITIES OF BRENHAM, BRYAN, CALDWELL,
COLLEGE STATION, MADISONVILLE, NAVASOTA, AND SOMERVILLE
603 AM CDT WED MAY 20 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 50 90
CHANCE OF THUNDER (%) 30 50 90
TEMP (24H TREND) 82 (-7) 69 (+1) 79
RH % (24H TREND) 66 (+4) 100 (0) 74
WIND 20FT/EARLY(MPH) NE 6 G18 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR S 5
MAX/MIN MIX HGT(M) 1060 940
MAX/MIN MIX HGT(FT) 3470 3070
TRANSPORT WND (KTS) E 7 SE 6
TRANSPORT WND (M/S) E 4 SE 3
VENT RATE (M/S-M) 4240 2820
CATEGORY DAY 3 2
SUNSHINE HOURS 2 1
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ177>179-199-200-202130-
MONTGOMERY-NORTHERN LIBERTY-POLK-SAN JACINTO-WALKER-
INCLUDING THE CITIES OF CLEVELAND, COLDSPRING, CONROE, CORRIGAN,
DAYTON, HUNTSVILLE, LIBERTY, LIVINGSTON, SHEPHERD,
AND THE WOODLANDS
603 AM CDT WED MAY 20 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 40 90
CHANCE OF THUNDER (%) 30 40 90
TEMP (24H TREND) 83 (-6) 69 (+2) 83
RH % (24H TREND) 67 (+6) 100 (0) 70
WIND 20FT/EARLY(MPH) NE 6 G18 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
MAX/MIN MIX HGT(M) 940 1110
MAX/MIN MIX HGT(FT) 3070 3640
TRANSPORT WND (KTS) SE 5 SE 8
TRANSPORT WND (M/S) SE 3 SE 4
VENT RATE (M/S-M) 2820 4440
CATEGORY DAY 2 3
SUNSHINE HOURS 2 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ212-213-227-237-238-202130-
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
603 AM CDT WED MAY 20 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 40 80
CHANCE OF THUNDER (%) 30 40 70
TEMP (24H TREND) 84 (-6) 71 (+1) 82
RH % (24H TREND) 65 (+6) 100 (0) 68
WIND 20FT/EARLY(MPH) E 6 G23 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) E 5 LGT/VAR S 6
MAX/MIN MIX HGT(M) 1090 1350
MAX/MIN MIX HGT(FT) 3580 4430
TRANSPORT WND (KTS) SE 7 S 12
TRANSPORT WND (M/S) SE 4 S 6
VENT RATE (M/S-M) 4360 8100
CATEGORY DAY 3 4
SUNSHINE HOURS 2 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ210-211-226-235-236-202130-
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
603 AM CDT WED MAY 20 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 40 70
CHANCE OF THUNDER (%) 30 40 70
TEMP (24H TREND) 86 (-5) 70 (-1) 83
RH % (24H TREND) 62 (+5) 100 (0) 66
WIND 20FT/EARLY(MPH) E 6 G28 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) E 5 LGT/VAR S 6
MAX/MIN MIX HGT(M) 1100 1110
MAX/MIN MIX HGT(FT) 3600 3640
TRANSPORT WND (KTS) SE 9 S 10
TRANSPORT WND (M/S) SE 5 S 5
VENT RATE (M/S-M) 5500 5550
CATEGORY DAY 3 3
SUNSHINE HOURS 2 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ214-300-313-338-202130-
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
603 AM CDT WED MAY 20 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 40 60
CHANCE OF THUNDER (%) 30 40 60
TEMP (24H TREND) 84 (-3) 72 (+3) 84
RH % (24H TREND) 68 (-2) 99 (-1) 69
WIND 20FT/EARLY(MPH) E 6 G24 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SE 5 LGT/VAR S 7
MAX/MIN MIX HGT(M) 960 1280
MAX/MIN MIX HGT(FT) 3140 4190
TRANSPORT WND (KTS) SE 7 S 13
TRANSPORT WND (M/S) SE 4 S 7
VENT RATE (M/S-M) 3840 8960
CATEGORY DAY 2 4
SUNSHINE HOURS 2 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ335>337-202130-
COASTAL BRAZORIA-COASTAL JACKSON-COASTAL MATAGORDA-
INCLUDING THE CITIES OF CLUTE, FREEPORT, LAKE JACKSON,
AND PALACIOS
603 AM CDT WED MAY 20 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 30 70
CHANCE OF THUNDER (%) 50 30 70
TEMP (24H TREND) 86 (-2) 75 (+3) 84
RH % (24H TREND) 65 (+2) 96 (-4) 68
WIND 20FT/EARLY(MPH) SE 9 G33 SE 5 SE 6
WIND 20FT/LATE(MPH) SE 8 LGT/VAR S 9
MAX/MIN MIX HGT(M) 980 1140
MAX/MIN MIX HGT(FT) 3200 3750
TRANSPORT WND (KTS) SE 9 S 12
TRANSPORT WND (M/S) SE 5 S 6
VENT RATE (M/S-M) 4900 6840
CATEGORY DAY 3 3
SUNSHINE HOURS 2 2
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
TXZ436>439-202130-
BOLIVAR PENINSULA-BRAZORIA ISLANDS-GALVESTON ISLAND-
MATAGORDA ISLANDS-
INCLUDING THE CITIES OF GALVESTON AND SURFSIDE BEACH
603 AM CDT WED MAY 20 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 30 60
CHANCE OF THUNDER (%) 50 30 60
TEMP (24H TREND) 84 (-1) 76 (+3) 84
RH % (24H TREND) 72 (+7) 95 (-5) 72
WIND 20FT/EARLY(MPH) SE 13 G34 SE 8 SE 8
WIND 20FT/LATE(MPH) SE 8 SE 7 S 10
MAX/MIN MIX HGT(M) 770 910
MAX/MIN MIX HGT(FT) 2520 3000
TRANSPORT WND (KTS) SE 9 S 14
TRANSPORT WND (M/S) SE 5 S 7
VENT RATE (M/S-M) 3850 6370
CATEGORY DAY 2 3
SUNSHINE HOURS 2 3
REMARKS...
FOG POTENTIAL (FIRST 24 HOURS)...LOW
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLOUDY WITH SHOWERS AND THUNDERSTORMS LIKELY.
LOWS IN THE MID 70S. HIGHS IN THE MID 80S. SOUTHEAST WINDS AROUND
5 MPH.
SATURDAY
SHOWERS WITH THUNDERSTORMS LIKELY. LOWS IN THE MID
70S. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN THE MID
70S. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY. SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 70S. HIGHS IN THE LOWER 80S.
NORTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE MID 80S. SOUTHEAST WINDS AROUND
5 MPH.
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