Forecast for Friday 25th of August 2023, South Island, south of the Rangitata river

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Please bear in mind these are just forecasts, and forecasts can be wrong.


Thermal Forecasts:

Thermal Updraft Velocity and Bouyancy/Shear RatioViewer09101115One big page
Surface TemperatureViewer09101115One big page
Normalised Surface SunViewer09101115One big page
Thermal Height UncertaintyViewer09101115One big page
Thermaling HeightViewer09101115One big page
Surface HeatingViewer09101115One big page
 

Cloud Forecasts:

Cumulus PotentialViewer09101115One big page
Cumulus Cloudbase where CuPotential is more than 0Viewer09101115One big page
OverDevelopment PotentialViewer09101115One big page
OverDevelopment Cloudbase where ODPotential is more than 0Viewer09101115One big page
Boundary Layer Cloud CoverViewer09101115One big page
Convective Available Potential Energy (CAPE)Viewer09101115One big page
1 Hour Accumulated RainViewer09101115One big page
 

Wind and Lower Level Forecasts:

Surface WindViewer09101115One big page
Boundary Layer Average WindViewer09101115One big page
Boundary Layer Max Up/Down (Convergence)Viewer09101115One big page
 

Upper Level Forecasts:

Vertical Velocity and Wind at 250 mb (~34,000 feet)Viewer09101115One big page
Vertical Velocity and Wind at 300 mb (~30,000 feet)Viewer09101115One big page
Vertical Velocity and Wind at 400 mb (~23,500 feet)Viewer09101115One big page
Vertical Velocity and Wind at 500 mb (~18,000 feet)Viewer09101115One big page
Vertical Velocity and Wind at 600 mb (~14,000 feet)Viewer09101115One big page
Vertical Velocity and Wind at 700 mb (~10,000 feet)Viewer09101115One big page
Vertical Velocity and Wind at 850 mb (~5,000 feet)Viewer09101115One big page
 

Upper Air Soundings (SkewT-LogP):

OmaramaViewer09101115One big page
Central Otago Flying Club, AlexandraViewer09101115One big page
South Canterbury Gliding Club, TimaruViewer09101115One big page
Gliding South, Five RiversViewer09101115One big page
QueenstownViewer09101115One big page
OturehuaViewer09101115One big page
TekapoViewer09101115One big page
Branches StationViewer09101115One big page
Erewhon StationViewer09101115One big page
near Mavora LakesViewer09101115One big page
Dunedin Airport (NZDN)Viewer09101115One big page
 

Atmospheric Cross-Sections, Parallel to Upper Level Wind:

 

Above are the RASP forecasts generated for this region and day. Forecasts appear here bit by bit as they are generated. Check forecasts for a previous day to see which times can be expected to be available. If there are only some or no forecast times listed then either something has gone wrong, or no forecasts are ready yet. If so please check back in half an hour to an hour.

Each forecast image has a timestamp in the upper right corner, this timestamp shows at what time the forecast was generated, and how far in the future the forecast is from the actual observations it was based on. For example, the timestamp "[22hrFcst@0409z]" means the forecast was generated at 04:09 GMT, and the forecast is for 22 hours into the future from the time the actual observations were made. Note that the observations were not made at 04:09 GMT.


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