Severe Weather Charts
Operational Model Forecasts
GEM REGIONAL DETERMINISTIC PREDICTION SYSTEM (RDPS)
Specialized model output is often used to help with the forecasting of severe weather. Since the factors most likely to indicate severe weather vary with the seasons, the charts are divided in broad categories of "Summer" and "Winter".
| Wind1 | Stability and Moisture2 | Energy, wind shear and helicity3 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hr | 00z | 06z | 12z | 18z | 00z | 06z | 12z | 18z | 00z | 06z | 12z | 18z |
| 00 | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) |
| 03 | 323 (1:2) | 323 (1:2) | ||||||||||
| 06 | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | ||||||||
| 09 | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | ||||||||
| 12 | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | ||||
| 15 | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | ||||||||
| 18 | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | ||||
| 21 | 323 (1:2) | 323 (1:2) | ||||||||||
| 24 | 323 (1:2) | 323 (1:2) | 323 (1:2) | 323 (1:2) | ||||||||
xxx = kbytes full size image
(1:2) = image scaled by 1/2
- Wind, Tropopause and 250 hPa heights
- Stability indices, Dewpoints, Water Content
- Buoyant energy, Helicity, Storm Severity Index
00z Production Run (Normally updated between 5:00 and 6:00 UTC), 12z Production Run (Normally updated between 17:00 and 18:00 UTC)
| Pressure, thicknesses, precipitation types | 250 hPa, wind, moisture * | |||||||
|---|---|---|---|---|---|---|---|---|
| Hr | 00z | 06z | 12z | 18z | 00z | 06z | 12z | 18z |
| 12 | 265 (1:2) | 265 (1:2) | 272 (1:2) | 272 (1:2) | 276 (1:2) | 276 (1:2) | 276 (1:2) | 276 (1:2) |
| 18 | 261 (1:2) | 261 (1:2) | 269 (1:2) | 269 (1:2) | 274 (1:2) | 274 (1:2) | 274 (1:2) | 274 (1:2) |
| 24 | 260 (1:2) | 260 (1:2) | 262 (1:2) | 262 (1:2) | 270 (1:2) | 270 (1:2) | 270 (1:2) | 270 (1:2) |
| 30 | 260 (1:2) | 260 (1:2) | 259 (1:2) | 259 (1:2) | 269 (1:2) | 269 (1:2) | 269 (1:2) | 269 (1:2) |
| 36 | 261 (1:2) | 261 (1:2) | 258 (1:2) | 258 (1:2) | ||||
| 42 | 260 (1:2) | 260 (1:2) | 258 (1:2) | 258 (1:2) | ||||
| 48 | 258 (1:2) | 258 (1:2) | 256 (1:2) | 256 (1:2) | ||||
xxx = kbytes of full size image
(1:2) = image scaled by 1/2
* chart is updated daily October to April only
- Date modified: