Forecast Details for Porum, OK

Recent Locations: Grapevine, TX Porum, OK

Current Alerts for Porum, OK: Tornado Watch

This Afternoon: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 78. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and possibly a thunderstorm before midnight, then showers and thunderstorms likely after midnight. Some of the storms could be severe. Low around 49. South wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Saturday: A chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and 3pm. Partly sunny, with a high near 65. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Saturday Night: Cloudy during the early evening, then gradual clearing, with a low around 39. North wind around 5 mph becoming calm in the evening.

Sunday: Sunny, with a high near 72. Calm wind becoming south around 5 mph.

Sunday Night: Mostly clear, with a low around 51. Calm wind becoming south around 5 mph after midnight.

Monday: Sunny, with a high near 79. South wind 5 to 15 mph, with gusts as high as 25 mph.

Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. South wind around 10 mph.

Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Cloudy, with a high near 78. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

Tuesday Night: Showers and possibly a thunderstorm. Low around 57. South wind around 10 mph. Chance of precipitation is 80%.

Wednesday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 69. Southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

Wednesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 43. North wind 5 to 10 mph.

Thursday: Sunny, with a high near 66. North wind 5 to 10 mph becoming southeast in the afternoon.

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North America Water Vapor (Moisture)

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Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

Weather Topic: What is Sleet?

Home - Education - Precipitation - Sleet

Sleet Next Topic: Snow

Sleet is a form of precipitation in which small ice pellets are the primary components. These ice pellets are smaller and more translucent than hailstones, and harder than graupel. Sleet is caused by specific atmospheric conditions and therefore typically doesn't last for extended periods of time.

The condition which leads to sleet formation requires a warmer body of air to be wedged in between two sub-freezing bodies of air. When snow falls through a warmer layer of air it melts, and as it falls through the next sub-freezing body of air it freezes again, forming ice pellets known as sleet. In some cases, water droplets don't have time to freeze before reaching the surface and the result is freezing rain.

Next Topic: Snow