Wednesday, April 26, 2017

Severe Weather And Flooding

An area of strong to severe thunderstorms will cross the state from west to east today.  The newest data indicates this may move through faster than anticipated.  This raises concerns for the kids in school and I urge all school admins and teachers to review your severe weather safety plans.  

The main threats will be damaging winds and hail.  Tornadoes will also be possible.  Remember, there are only two things which make a storm severe: hail 1''+ in diameter and/or winds 58mph or greater.  Lightning does not make a storm severe, but it's still very dangerous.  When the thunder roars, get indoors.

The next system arrives Friday evening with the threat for severe weather and flooding.  There could be more than 6'' of rain across northern Arkansas through the weekend which will become a big concern.  I expect flash flood watch for much of the northern half of the state this weekend.  Severe weather will also be possible for much of the state.

The following maps of future radar is the HRRR from Weatherbell.com.  Remember, radar simulation is never perfect.

11AM


Noon
1pm

2pm

3pm

4pm

5pm

6pm
Morning severe weather outlook from the SPC



Rainfall through Sunday morning could exceed 6'' across northern Arkansas.  I have seen modeling which shows much higher totals possible.  Flash flooding and river flooding possible.

No comments:

NOAA Winter Guidance