He National Weather Service (SNM) This afternoon, an urban flood warning was issued for the San Juan area. due to a strong thunderstorm that was leaving intense rain activity over the capital.
According to preliminary estimates from the TJUA Doppler radar, between one and two inches of rain have already fallen on sectors of said town. An additional inch of rain is possible in the next few hours.
The product warning will be in effect until 3:15 p.m.
The new day anticipated this morning in its weather forecast that there was a possibility that urban flood warning products would be issued due to a day of moderate to heavy downpours that would develop this afternoon.
Although the precipitation began in the metropolitan area, towns in the interior towards the northwest of the island are also likely to experience similar conditions in the coming hours.
In fact, some isolated thunderstorms may develop with thunderstorms.
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An urban flood warning is issued when gradual flooding is possible in areas prone to ponding due to poor drainage or being near streams or creeks. Such flooding can occur hours after the rain starts, because it occurs more slowly than flash floods.
The difference between urban flooding and flash flooding is that the latter type of flooding occurs when water is likely to accumulate rapidly hours after a heavy downpour or during a period of rain. Flash floods can occur in areas with poor drainage or near rapidly rising rivers. This type of event represents a threat to life and property.
This rain pattern should end late at night and then give way to a short period of dry weather before the instability associated with the approach of the storm begins. Hurricane Lee.
Carlos Tolentino Rosario is a journalist who covers weather, climate change and science, among others. He holds a certification in weather forecasting from the Department of Meteorology and Atmospheric Sciences at Pennsylvania State University (PSU). He is also a member of the American Meteorological Society (AMS).