Potchefstroom, Mahikeng, Vanderbijlpark (Vaal) — WRF 3 km, convection-permitting — init 2026-08-23 06:00 UTC (20260823_06z). Times shown are SAST.
Next 24h at a glance: STORM RAIN WIND HI WBGT THI FROST SPRAY FIRE SCHED
Storm/lightning-proxy risk (CAPE + graupel flux + reflectivity + hail)
Hourly rainfall rate
10 m wind gust
Hours per day with damaging wind:
| Date (SAST) | Hours >=strong breeze | Hours >=gale |
|---|---|---|
| 23 Aug | 0 | 0 |
| 24 Aug | 0 | 0 |
| 25 Aug | 0 | 0 |
| 26 Aug | 0 | 0 |
NWS apparent-temperature (temp + humidity, public-facing heat metric)
Simplified outdoor Wet Bulb Globe Temperature
Moderate heat load expected (peak WBGT approx 20 degC around 16:00 SAST). Athletes not yet used to these conditions should ease into full-intensity outdoor sessions and keep fluids available; a short acclimatization block is worth considering if this pattern continues.
Temperature-Humidity Index
Species breakdown (peak THI ~68 over next 24h): Cattle: OK Sheep: OK Goats: OK Pigs: OK Poultry: OK
2 m temperature + radiative-cooling conditions
Hours per night below each frost threshold:
| Date (SAST) | Hours <2C | Hours <0C | Hours <-2C |
|---|---|---|---|
| 23 Aug | 0 | 0 | 0 |
| 24 Aug | 0 | 0 | 0 |
| 25 Aug | 0 | 0 | 0 |
| 26 Aug | 0 | 0 | 0 |
Rain-free + workable wind for agrochemical application
Fire-weather proxy: low humidity + wind + within-window dry spell.
Combines Irrigation Need + Evaporative Demand into one recommendation. Based only on model-simulated, rain-driven soil moisture -- not on any irrigation already applied.
Next 24h at a glance: STORM RAIN WIND HI WBGT THI FROST SPRAY FIRE SCHED
Storm/lightning-proxy risk (CAPE + graupel flux + reflectivity + hail)
Hourly rainfall rate
10 m wind gust
Hours per day with damaging wind:
| Date (SAST) | Hours >=strong breeze | Hours >=gale |
|---|---|---|
| 23 Aug | 0 | 0 |
| 24 Aug | 0 | 0 |
| 25 Aug | 0 | 0 |
| 26 Aug | 0 | 0 |
NWS apparent-temperature (temp + humidity, public-facing heat metric)
Simplified outdoor Wet Bulb Globe Temperature
Moderate heat load expected (peak WBGT approx 21 degC around 16:00 SAST). Athletes not yet used to these conditions should ease into full-intensity outdoor sessions and keep fluids available; a short acclimatization block is worth considering if this pattern continues.
Temperature-Humidity Index
Species breakdown (peak THI ~70 over next 24h): Cattle: OK Sheep: OK Goats: OK Pigs: OK Poultry: OK
2 m temperature + radiative-cooling conditions
Hours per night below each frost threshold:
| Date (SAST) | Hours <2C | Hours <0C | Hours <-2C |
|---|---|---|---|
| 23 Aug | 0 | 0 | 0 |
| 24 Aug | 0 | 0 | 0 |
| 25 Aug | 0 | 0 | 0 |
| 26 Aug | 0 | 0 | 0 |
Rain-free + workable wind for agrochemical application
Fire-weather proxy: low humidity + wind + within-window dry spell.
Combines Irrigation Need + Evaporative Demand into one recommendation. Based only on model-simulated, rain-driven soil moisture -- not on any irrigation already applied.
Next 24h at a glance: STORM RAIN WIND HI WBGT THI FROST SPRAY FIRE SCHED
Storm/lightning-proxy risk (CAPE + graupel flux + reflectivity + hail)
Hourly rainfall rate
10 m wind gust
Hours per day with damaging wind:
| Date (SAST) | Hours >=strong breeze | Hours >=gale |
|---|---|---|
| 23 Aug | 0 | 0 |
| 24 Aug | 0 | 0 |
| 25 Aug | 0 | 0 |
| 26 Aug | 0 | 0 |
NWS apparent-temperature (temp + humidity, public-facing heat metric)
Simplified outdoor Wet Bulb Globe Temperature
Moderate heat load expected (peak WBGT approx 19 degC around 15:00 SAST). Athletes not yet used to these conditions should ease into full-intensity outdoor sessions and keep fluids available; a short acclimatization block is worth considering if this pattern continues.
Temperature-Humidity Index
Species breakdown (peak THI ~67 over next 24h): Cattle: OK Sheep: OK Goats: OK Pigs: OK Poultry: OK
2 m temperature + radiative-cooling conditions
Hours per night below each frost threshold:
| Date (SAST) | Hours <2C | Hours <0C | Hours <-2C |
|---|---|---|---|
| 23 Aug | 0 | 0 | 0 |
| 24 Aug | 0 | 0 | 0 |
| 25 Aug | 0 | 0 | 0 |
| 26 Aug | 0 | 0 | 0 |
Rain-free + workable wind for agrochemical application
Fire-weather proxy: low humidity + wind + within-window dry spell.
Combines Irrigation Need + Evaporative Demand into one recommendation. Based only on model-simulated, rain-driven soil moisture -- not on any irrigation already applied.