FNUS72 KMLB 180736 FWSMLB Spot Forecast for Cypress Creek NE...SFWMD National Weather Service Melbourne FL 336 AM EDT Mon May 18 2026 Forecast is based on ignition time of 0800 EDT on May 18. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... High pressure maintains easterly flow through this week, increasing to around 15 mph with gusts 20-25 mph behind the sea breeze each afternoon. Isolated to scattered showers will be possible, as moisture increases into this afternoon and cells drift onshore from the Atlantic. A few strong storms cannot be ruled out, with wind gusts up to 50 mph and small hail, in addition to lightning strikes. Elevated winds during the overnight hours are expected to limit any fog development. No min RH concerns, with good afternoon smoke dispersion. .TODAY... Sky/weather.........Mostly sunny (25-35 percent). Slight chance of showers and thunderstorms in the late morning and early afternoon. Then, chance of showers and thunderstorms late in the afternoon. Chance of pcpn......30 percent. Max temperature.....Around 87. Min humidity........65 percent. Wind (20 ft)........East winds 9 to 15 mph. Gusty and erratic winds expected near thunderstorms. Mixing height.......600 ft AGL increasing to 3800 ft AGL in the late morning and afternoon. Transport winds.....East 12 to 16 mph. Dispersion index....9 increasing to 56. LVORI...............4 decreasing to 1 in the afternoon. TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........23 23 31 31 32 31 35 33 31 33 Weather cov..... SCH SCH SCH SCH SCH SCH SCH CHC Weather type.... RW RW RW RW RW RW RW RW Tstm cov........ SCH SCH SCH SCH SCH CHC Chc of pcpn (%).0 10 20 20 20 20 20 20 20 30 Temp............80 82 84 84 85 86 86 86 85 85 RH..............79 74 70 70 67 65 65 65 67 67 20 FT wind dir..E E E E E E E E E E 20 FT wind spd..10 13 13 15 14 14 14 15 14 15 20 FT wind gust.17 17 20 22 22 22 23 22 23 22 Mix hgt (kft)...0.6 3.0 3.2 3.4 3.6 3.6 3.8 3.4 3.3 3.1 Transp wind dir.E E E E E E E E E E Transp wind spd.13 15 15 16 16 16 16 16 16 16 Dispersion idx..9 48 51 56 56 57 58 55 54 54 LVORI...........4 3 3 3 1 1 1 1 1 1 .TONIGHT... Sky/weather.........Partly cloudy (30-40 percent). Chance of thunderstorms in the evening. Chance of showers through the night. Chance of pcpn......30 percent. Min temperature.....Around 76. Max humidity........87 percent. Wind (20 ft)........East winds 6 to 14 mph. Gusty and erratic winds expected near thunderstorms. Mixing height.......1500 ft AGL decreasing to 400 ft AGL early in the evening. Transport winds.....East 12 to 16 mph. Dispersion index....46 decreasing to 9. LVORI...............4 increasing to 5 overnight. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky (%).........36 39 34 41 27 37 Weather cov.....CHANCE CHANCE CHANCE CHANCE Weather type....RNSHWR RNSHWR RNSHWR RNSHWR NONE NONE Tstm cov........CHANCE S CHC S CHC Chc of pcpn (%).30 30 30 30 10 10 Temp............84 80 79 78 78 77 RH..............70 79 82 85 82 85 20 ft wind......E 14 E 12 E 10 E 7 E 7 E 6 20 ft wind gust.22 20 18 17 17 16 Mix hgt (ft)....2700 600 500 500 400 500 Transport wind..E 16 E 13 E 15 E 13 E 13 E 12 Dispersion idx..46 8 108 5 5 LVORI...........3 4 4 4 4 5 .TUESDAY... Sky/weather.........Mostly sunny (30-40 percent). Chance of showers and thunderstorms. Chance of pcpn......40 percent. Max temperature.....Around 87. Min humidity........63 percent. Wind (20 ft)........East winds 7 to 13 mph. Gusty and erratic winds expected near thunderstorms. Mixing height.......800 ft AGL increasing to 4200 ft AGL in the late morning and afternoon. Transport winds.....East 12 to 16 mph. Dispersion index....10 increasing to 60 in the late morning. LVORI...............5 decreasing to 1. TIME (EDT) 6 AM 9 AM NOON 3 PM Sky (%).........32 34 43 31 Weather cov.....S CHC S CHC CHANCE CHANCE Weather type....RNSHWR RNSHWR RNSHWR RNSHWR Tstm cov........ S CHC CHANCE CHANCE Chc of pcpn (%).20 20 40 30 Temp............77 83 85 87 RH..............85 72 67 63 20 FT wind......E 7G16 E 10G18 E 13G20 E 13G21 Mix hgt (ft)....500 3100 4100 4100 Transport wind..E 12 E 15 E 15 E 16 Dispersion idx..5 51 58 60 LVORI...........5 3 1 1 $$ Forecaster...Wishard Requested by...James Schuette Type of request...PRESCRIBED .TAG 2613869.0/MLB .DELDT 05/18/26 .FormatterVersion 2.0.0 .EMAIL jschuett@sfwmd.gov