Basin: Atlantic — Wallet 2
Tue, 21 Jul 2026 20:54:00 GMT
Tropical Storm Bertha wind speed probabilities number 10
NWS National Hurricane Center Miami, FL al022026
2100 utc Tuesday July 21 2026
At 2100z the center of Tropical Storm Bertha was located near
Latitude 29.4 north…longitude 87.2 west with maximum sustained
Winds near 50 kts
…60 MPH…
95 km/h.
UTC indicates coordinated universal time (greenwich)
Atlantic standard time (ast)…subtract 4 hours from UTC time
Eastern daylight time (Eastern Daylight Time)…subtract 4 hours from UTC time
Central daylight time (Central Daylight Time)…subtract 5 hours from UTC time
Wind speed probability table for specific locations
Chances of sustained (1-minute average) wind speeds of at least
…34 knots (39 mph… 63 km/h)…
…50 knots (58 mph… 93 km/h)…
…64 knots (74 mph…119 km/h)…
For locations and time periods during the next 5 days
Probabilities for locations are given as op(cp) where
Op is the probability of the event beginning during
An individual time period (onset probability)
(cp) is the probability of the event occurring between
18z Tuesday and the forecast hour (cumulative probability)
Probabilities are given in percent
X indicates probabilities less than 1 percent
Probabilities for 34 knots and 50 knots are shown at a given location when
The 5-day cumulative probability is at least 3 percent.
Probabilities for 34…50…64 knots shown when the 5-day
64-knots cumulative probability is at least 1 percent.
– – – – wind speed probabilities for selected locations – – – –
From from from from from from from
Time 18z Tuesday 06z Wednesday 18z Wednesday 06z Thursday 18z Thursday 18z Friday 18z Saturday
Periods to to to to to to to
06z Wednesday 18z Wednesday 06z Thursday 18z Thursday 18z Friday 18z Saturday 18z Sunday
Forecast hour (12) (24) (36) (48) (72) (96) (120)
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Location knots
Destin exec ap 34 3 x( 3) x( 3) x( 3) x( 3) x( 3) x( 3)
Pensacola fl 34 6 1( 7) x( 7) x( 7) x( 7) x( 7) x( 7)
Gfam 290n 870w 34 99 x(99) x(99) x(99) x(99) x(99) x(99)
Gfam 290n 870w 50 12 1(13) x(13) x(13) x(13) x(13) x(13)
Mobile al 34 1 3( 4) x( 4) x( 4) x( 4) x( 4) x( 4)
Gulfport ms 34 x 8( 8) 1( 9) x( 9) x( 9) x( 9) x( 9)
Stennis ms 34 x 5( 5) 3( 8) x( 8) x( 8) x( 8) x( 8)
Buras la 34 x 27(27) 13(40) x(40) x(40) x(40) x(40)
Gfam 280n 890w 34 x 11(11) 2(13) x(13) x(13) x(13) x(13)
New orleans la 34 x 3( 3) 8(11) x(11) x(11) x(11) x(11)
Houma la 34 x 2( 2) 16(18) x(18) x(18) x(18) x(18)
Gfam 280n 910w 34 x 1( 1) 13(14) 2(16) x(16) x(16) x(16)
Morgan city la 34 x x( x) 12(12) 2(14) x(14) x(14) x(14)
Lafayette la 34 x x( x) 2( 2) 3( 5) x( 5) x( 5) x( 5)
New iberia la 34 x x( x) 5( 5) 3( 8) x( 8) x( 8) x( 8)
Gfam 280n 930w 34 x x( x) 3( 3) 9(12) 1(13) x(13) x(13)
Lake charles 34 x x( x) x( x) 3( 3) 2( 5) x( 5) x( 5)
Cameron la 34 x x( x) 2( 2) 18(20) 4(24) x(24) x(24)
Kountze tx 34 x x( x) x( x) 1( 1) 3( 4) x( 4) x( 4)
Port arthur tx 34 x x( x) x( x) 2( 2) 4( 6) x( 6) x( 6)
Galveston tx 34 x x( x) x( x) 8( 8) 14(22) x(22) x(22)
Galveston tx 50 x x( x) x( x) 1( 1) 2( 3) x( 3) x( 3)
Houston tx 34 x x( x) x( x) x( x) 6( 6) x( 6) x( 6)
Austin tx 34 x x( x) x( x) x( x) 4( 4) x( 4) x( 4)
Freeport tx 34 x x( x) x( x) 1( 1) 4( 5) x( 5) x( 5)
Gfam 280n 950w 34 x x( x) x( x) 3( 3) 4( 7) x( 7) x( 7)
High island tx 34 x x( x) x( x) 3( 3) 5( 8) x( 8) x( 8)
Matagorda tx 34 x x( x) x( x) 1( 1) 9(10) x(10) x(10)
Port o connor 34 x x( x) x( x) x( x) 7( 7) x( 7) x( 7)
Forecaster reinhart
About The Author
