Alabama Severo Climate: What is a PDS Tornado clock?

All alabama faces the risk of See the severe weather todayAccording to the National Meteorological Service.

The NOAA storm prediction center has placed a level 5 of 5 For a severe climate in a large part of the State, which means that numerous severe storms are expected.

Here is the last perspective of severe climate for Alabama:

Severe storms are expected to track through Alabama This afternoon and tonight, according to forecasting.

The NOAA storm prediction center has issued a tornado clock for part of the state, and it is likely that more Alabama parts will be put under tornado watches before the end of the night.

The current clock is what is called a PDS tornado watch. PDS means “particularly dangerous situation.”

It will be in force until 8 pm on Saturday.

The storm prediction center said that “severe threat will increase during the afternoon, including the potential of multiple intense and destructive tornadoes.”

Alabama counties on the clock are: Autauga, Bibb, Blount, Butler, Calhoun, Chilton, Choctaw, Clarke, Colbert, Conecuh, Coosa, Cullman, Dallas, Dekalb, Elmore, Etowah, Fayette, Franklin, Greene, Hale, Jackson, Jefferson, Lamar, Lauderdale, Lauderdale, Lauderdale, Lauderdale, Lauderdale, Lauderdale, Lauderdale, Lauderdale, Lauderdale, Lauderdale, Lauderdale, Lauderdale, Lauderdale, Lauderdale Limno, Limno, Limno, Liwes, Liwes, Liwes, Liwnes, Liwne Madison, Marengo, Marion, Marshall, Monroe, Montgomery, Morgan, Perry, Pickens, Shelby, St. Clair, Sumter, Talladega, Tuscaloosa, Walker, Washington, Wilcox and Winston.

A PDS clock is not used frequently and makes climate observers realize why it means a greater risk of strong or violent tornadoes.

On today’s clock is written in the top of the clock:

“This is a particularly dangerous situation”

The storm prediction center issued all severe tornadoes and storms, which is located in Norman, Okla.

However, his local office of the National Meteorological Service office issues tornado warnings.

According to the storm prediction center, a PDS clock is issued when “the forecast has a high confidence that multiple strong (EF-2 or EF-3 on the improved Fujita scale) or violent tornadoes (EF-4 and EF-5) will occur in the surveillance area.”

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According to a study of most SPC deaths and tornado damage are caused by EF-2 tornadoes to EF-5, although they represent less than 10 percent of all informed tornadoes.

That was the motivation to create a PDS watch, to highlight the “unusually high threat,” according to the SPC.

PDS watches are rarely broadcast. According to the SPC of the 3,058 tornado watches issued from 1996 to 2005, only 7 percent were PDS watches.

The Alabama Tornado PDS clock is the second PDS watch of the day. Parts of Mississippi and Louisiana were placed under a PDS watch on Saturday.