The tropics remains quiet for now. NHC stop posting on 96L but it is still being watched. Sahara dry air and dust in the area not favorable for development at this time. Also models have dropped it as well. An area of showers and storms near 50°W and 15°N is still holding together so I will continue to watch it. Other than that all is quiet.
RTW http://ralphstropicalweather.myfreesites.net
Thursday, July 20, 2017
Wednesday, July 19, 2017
TROPICAL WEATHER OUTLOOK JULY 19 2017 0453 PM EDT
The tropics remain quiet for now. As for INVEST 96L they have not released another model run for this system at this time. However, I noticed that there has been a burst of convection (thunderstorms) with this system, and if this trend continues then slow development is possible tonight and tomorrow. This maybe a temporary burst of thunderstorms so I will continue to monitor it. As for now there is no tropical cyclone threat.
RTW http://ralphstropicalweather.myfreesites.net
RTW http://ralphstropicalweather.myfreesites.net
MIAMI AND VICINITY 7-DAY FORECAST
Today Jul 19, 2017
Mostly cloudy with scattered thunderstorms during the day: Highs
around 90°F. Heat index around 97°F. East southeast wind to 5 MPH, gusting to
10 MPH. Chance of rain 50 percent.
Mostly cloudy with scattered thunderstorms during the night:
Lows around 79°F. East southeast wind to 5 MPH. Chance of rain 40 percent.
Thursday Jul 20
Mostly cloudy with showers likely during the day: Highs
around 90°F. Heat index around 100°F. South wind to 5 MPH. Chance of rain 60 percent.
Mostly cloudy with scattered thunderstorms during the night:
Lows around 79°F. East southeast wind to 5 MPH. Chance of rain 50 percent.
Friday Jul 21
Mostly cloudy with thunderstorms likely during the day: Highs
around 90°F. Heat index around 100°F. West southwest wind to 6 MPH, gusting to
12 MPH. Chance of rain 60 percent.
Partly cloudy with thunderstorms likely during the night: Lows
around 81°F. Heat index around 93°F. South wind to 6 MPH, gusting to 12 MPH. Chance
of rain 60 percent.
Saturday Jul 22
Partly cloudy with scattered thunderstorms during the day: Highs
around 90°F. Heat index around 99°F. South southeast wind to 9 MPH. Chance of rain
30 percent.
Partly cloudy with scattered thunderstorms during the night:
Lows around 81°F. Heat index around 91°F. East southeast wind to 8 MPH. Chance
of rain 30 percent.
Sunday Jul 23
Isolated Storms Day:
Partly cloudy with isolated thunderstorms. Highs around 90°F. Heat index around
99°F. East southeast wind to 10 MPH. Chance of rain 20 percent.
Partly cloudy with scattered thunderstorms during the night:
Lows around 81°F. Heat index around 91°F. East southeast wind to 10 MPH. Chance
of rain 20 percent.
Monday Jul 24
Partly cloudy with scattered thunderstorms during the day: Highs
around 90°F. Heat index around 100°F. East southeast wind to 11 MPH. Chance of rain
30 percent.
Partly cloudy with scattered thunderstorms during the night:
Lows around 81°F. Heat index around 91°F. East southeast wind to 11 MPH. Chance
of rain 30 percent.
Tuesday Jul 25
Partly cloudy with scattered thunderstorms
during the day: Highs around 90°F. Heat index around 99°F. East wind to 10 MPH.
Chance of rain 40
percent.
FORECAST MAPS AND LIVE RADAR ARE COURTESY OF N.W.S. IN MIAMI FLORIDA
TROPICAL WEATHER OUTLOOK JULY 19, 2017 0105 PM EDT
The tropics remains quiet for now, but I am still monitoring Storm Invest 96L over the Central Atlantic. This system is still encountering Sahara dust and dry air.
RTW http://ralphstropicalweather.myfreesites.net
RTW http://ralphstropicalweather.myfreesites.net
Tuesday, July 18, 2017
INVEST 96L 00Z MODEL UPDATE JULY 18, 2017 1128 PM EDT
96L MOVING THROUGH SAHARA DUST AND DRY AIR. THIS SYSTEM IS STRUGGLING AT THIS TIME BUT STILL HAS A CHANCE FOR SOME DEVELOPMENT.
DON DOWNGRADED TO AN OPEN TROPICAL WAVE JULY 18, 2017 1110 PM EDT
ZCZC MIATCPAT5 ALL TTAA00 KNHC DDHHMM BULLETIN Remnants Of Don Advisory Number 6 NWS National Hurricane Center Miami FL AL052017 1100 PM AST Tue Jul 18 2017 ...DON DEGENERATES TO AN OPEN WAVE OVER THE FAR SOUTHEASTERN CARIBBEAN SEA... ...THIS IS THE LAST ADVISORY... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...11.9N 62.5W ABOUT 55 MI...90 KM WSW OF GRENADA MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...W OR 275 DEGREES AT 25 MPH...41 KM/H MINIMUM CENTRAL PRESSURE...1012 MB...29.89 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Trinidad and Tobago has discontinued the Tropical Storm Warning for Grenada. The government of Barbados has discontinued the Tropical Storm Warning for St. Vincent and the Grenadines. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: There are no coastal watches and warnings in effect. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ Data from an Air Force Reserve reconnaissance aircraft indicate that Don no longer has a center of circulation. At 1100 PM AST (0300 UTC), the remnants of Don were located near latitude 11.9 North, longitude 62.5 West. The remnants are moving quickly toward the west near 25 mph (41 km/h), and this motion is expected to continue during the next couple of days. The aircraft data indicate that maximum sustained winds are near 40 mph (65 km/h) with higher gusts. These winds are occurring over the waters of the far southeastern Caribbean Sea. Tropical-storm-force winds extend outward up to 45 miles (75 km) to the north of the center. The estimated minimum central pressure is 1012 mb (29.89 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Gusts to tropical storm force in squalls are still possible across the Windward Islands overnight. RAINFALL: The remnants of Don are expected to produce total rain accumulations of 3 to 6 inches, with isolated higher amounts, across Trinidad and Tobago, the southern Windward Islands, and northeastern Venezuela through Wednesday. These rains could produce life-threatening flash floods and mudslides, especially in mountainous areas. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on this system. Additional information on this system can be found in High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and available on the Web at http://www.opc.ncep.noaa.gov/shtml/NFDHSFAT1.shtml. $$ Forecaster Berg NNNN
BRIEF MAP UPDATE FOR DON'S POSITION AND 00Z MODELS 0952 PM EDT
000 WTNT35 KNHC 182355 TCPAT5 BULLETIN Tropical Storm Don Intermediate Advisory Number 5A NWS National Hurricane Center Miami FL AL052017 800 PM AST Tue Jul 18 2017 ...DON ACCELERATING WESTWARD AS IT APPROACHES GRENADA... SUMMARY OF 800 PM AST...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...11.9N 61.4W ABOUT 25 MI...40 KM SE OF GRENADA ABOUT 100 MI...155 KM S OF ST. VINCENT MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...W OR 275 DEGREES AT 23 MPH...37 KM/H MINIMUM CENTRAL PRESSURE...1011 MB...29.85 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of the Netherlands has discontinued the Tropical Storm Watch for Bonaire. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Grenada * St. Vincent and the Grenadines Interests in Trinidad and Tobago, Bonaire, Curacao, and Aruba should continue to monitor the progress of Don. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 800 PM AST (0000 UTC), the center of Tropical Storm Don was located near latitude 11.9 North, longitude 61.4 West. Don is moving toward the west near 23 mph (37 km/h). This general motion is expected through Wednesday. On the forecast track, the center of Don will move across the Windward Islands within the next few hours, and then move westward across the southeastern Caribbean Sea late tonight and Wednesday. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Little change in strength is forecast during the next 24 hours. The system is forecast to degenerate into a trough of low pressure tonight or Wednesday. Tropical-storm-force winds extend outward up to 35 miles (55 km) from the center. The estimated minimum central pressure is 1011 mb (29.85 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected to spread across the Windward Islands within the warning area during the next several hours. RAINFALL: Don is expected to produce total rain accumulations of 3 to 6 inches, with isolated higher amounts, across Trinidad and Tobago and the southern Windward Islands through Wednesday. These rains could produce life-threatening flash floods and mudslides, especially in mountainous areas. NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Berg
TROPICAL STORM DON JULY 18, 2017 0510 PM EDT
000 WTNT35 KNHC 182036 TCPAT5 BULLETIN Tropical Storm Don Advisory Number 5 NWS National Hurricane Center Miami FL AL052017 500 PM AST Tue Jul 18 2017 ...BANDS OF HEAVY RAIN AND GUSTY WINDS SPREADING ACROSS THE WINDWARD ISLANDS... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...11.7N 60.0W ABOUT 120 MI...190 KM ESE OF GRENADA ABOUT 135 MI...220 KM SE OF ST. VINCENT MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...W OR 275 DEGREES AT 22 MPH...35 KM/H MINIMUM CENTRAL PRESSURE...1010 MB...29.83 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Grenada * St. Vincent and the Grenadines A Tropical Storm Watch is in effect for... * Bonaire Interests in Trinidad and Tobago, Aruba, and Curacao should monitor the progress of Don. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 500 PM AST (2100 UTC), the center of Tropical Storm Don was located near latitude 11.7 North, longitude 60.0 West. Don is moving toward the west near 22 mph (35 km/h). This general motion is expected through Wednesday. On the forecast track, the center of Don will move across the Windward Islands this evening, and then move westward across the southeastern Caribbean Sea late tonight and Wednesday. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Little change in strength is forecast during the next 24 hours. The system is forecast to degenerate into a trough of low pressure tonight or Wednesday. Tropical-storm-force winds extend outward up to 35 miles (55 km) from the center. The estimated minimum central pressure is 1010 mb (29.83 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected to spread across the Windward Islands within the warning area tonight. Tropical storm conditions are possible in the watch area by early Wednesday. RAINFALL: Don is expected to produce total rain accumulations of 3 to 6 inches, with isolated higher amounts across Barbados, Trinidad and Tobago, and the southern Windward Islands through Wednesday. These rains could produce life-threatening flash floods and mudslides, especially in mountainous areas. NEXT ADVISORY ------------- Next intermediate advisory at 800 PM AST. Next complete advisory at 1100 PM AST. $$ Forecaster Brown
http://ralphstropicalweather.myfreesites.net
TROPICAL WEATHER OUTLOOK JULY 18, 2017 0410 PM EDT
RTW http://ralphstropicalweather.myfreesites.net
TROPICAL WEATHER OUTLOOK JULY 18, 2017 1226 PM EDT
Other than Tropical storm Don approaching the Windward Islands and Invest 96L the tropics remain quiet for now.
RTW http://ralphstropicalweather.myfreesites.net
RTW http://ralphstropicalweather.myfreesites.net
TROPICAL STORM DON JULY 18, 2017 11 AM EDT
000 WTNT35 KNHC 181455 TCPAT5 BULLETIN Tropical Storm Don Advisory Number 4 NWS National Hurricane Center Miami FL AL052017 1100 AM AST Tue Jul 18 2017 ...RECONNAISSANCE AIRCRAFT FINDS DON WEAKER AS IT HEADS TOWARD THE WINDWARD ISLANDS... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...11.5N 58.0W ABOUT 155 MI...250 KM SE OF BARBADOS ABOUT 255 MI...410 KM E OF GRENADA MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...W OR 275 DEGREES AT 20 MPH...31 KM/H MINIMUM CENTRAL PRESSURE...1011 MB...29.86 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of St. Lucia has discontinued the Tropical Storm Watch for St. Lucia. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Grenada * St. Vincent and the Grenadines A Tropical Storm Watch is in effect for... * Barbados * Bonaire Interests in Trinidad and Tobago, Aruba, and Curacao should monitor the progress of Don. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 1100 AM AST (1500 UTC), the center of Tropical Storm Don was located near latitude 11.5 North, longitude 58.0 West. Don is moving toward the west near 20 mph (31 km/h). This general motion is expected through Wednesday. On the forecast track, the center of Don will move across the Windward Islands later today or tonight, and then move westward across the southeastern Caribbean Sea on Wednesday. Reports from an Air Force Reserve reconnaissance aircraft indicate that the maximum sustained winds have decreased to near 40 mph (65 km/h) with higher gusts. Little change in strength is forecast before Don moves through the Windward Islands. The tropical storm is forecast to degenerate into a trough of low pressure late Wednesday or Wednesday night. Tropical-storm-force winds extend outward up to 35 miles (55 km) from the center. The estimated minimum central pressure is 1011 mb (29.86 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected in the warning area by late this afternoon and tonight. Tropical storm conditions are possible in the watch area by tonight. RAINFALL: Don is expected to produce total rain accumulations of 3 to 6 inches, with isolated higher amounts across Barbados, Trinidad and Tobago, and the southern Windward Islands through Wednesday. These rains could produce life-threatening flash floods and mudslides, especially in mountainous areas. NEXT ADVISORY ------------- Next intermediate advisory at 200 PM AST. Next complete advisory at 500 PM AST. $$ Forecaster Brown
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