Glossary of Weather Terms
Allison, PA 15413
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- Convergence
- Convergence in a horizontal wind field indicates that more air is entering a given area than is leaving at that level. To compensate for the resulting "excess," vertical motion may result: upward forcing if convergence is at low levels, or downward forcing (subsidence) if convergence is at high levels. Upward forcing from low-level convergence increases the potential for thunderstorm development.
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Hourly Forecast for Allison, PA 15413
| Time | Conditions | Sky Cover | Chance of Precip. | Heat Index Wind Chill | Wind |
|---|---|---|---|---|---|
| Friday, February 10, 2012 | |||||
| 4 am |
| 51% | 14% | 18° F | From SW 7 mph |
| 5 am |
| 49% | 14% | 18° F | From SW 7 mph |
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