* Tornado Watch for portions of northwest Arkansas central and eastern Oklahoma northwest Texas
* effective this Monday afternoon and evening from 110 PM until 1000 PM CDT.
* Primary threats include... several tornadoes possible numerous large hail events likely with a few very large hail events to 4 inches in diameter possible numerous damaging wind gusts to 70 mph likely
The Tornado Watch area is approximately along and 115 statute miles east and west of a line from 30 miles northwest of Grove Oklahoma to 40 miles east of Wichita Falls Texas. For a complete depiction of the watch see the associated watch outline update (wous64 kwns wou1).
Remember... a Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings.
Other watch information... continue... ww 189... ww 190...
Discussion... rapid intense storm development is expected during the next few hours... both near a stalled surface front roughly west of the I-35 corridor... and near the pre-frontal dryline nosing northeastward into south central Oklahoma by late afternoon. Isolated supercells are likely along the dryline... with the most prominent tornado threat... which probably will increase by early evening as the southerly low-level jet strengthens and enlarges low-level hodographs. One or two strong tornadoes may not be out of the question. Otherwise... large hail is likely... some very large... with increasing damaging wind potential across eastern Oklahoma as convection consolidates and evolves into an organized cluster.
Aviation... tornadoes and a few severe thunderstorms with hail surface and aloft to 4 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 600. Mean storm motion vector 25035.
Public Information Statement
Statement as of 12:52 PM EDT on May 20, 2013
1150 am CDT Monday may 20 2013
Severe thunderstorms are expected across parts of the area. The National Weather Service in Norman urges you to take this time to think about what you will do to stay safe if storms approach.
Make sure you have more than one source of local weather warnings and information. If you have a weather radio, be sure it is working properly. Think about how you'll receive a warning if you lose cell phone or internet service.
Check the weather often throughout the day. If you will be traveling or have outdoor activities planned, be sure you can get the latest weather information and keep up with developing severe weather.
If storms threaten you, remember these basic safety guidelines:
Severe thunderstorms produce large hail and damaging winds. If you hear a Severe Thunderstorm Warning for your location, seek shelter in a sturdy building, and stay away from doors and windows. If you're driving, find substantial shelter to avoid being caught in large hail and strong winds. And remember that every thunderstorm produces dangerous lightning, and that no place outside is safe.
If you hear a Tornado Warning for your location, or feel threatened by a tornado, you need to act quickly to protect yourself. An underground shelter or safe room is the safest place. If no underground shelter is available, take cover in a sturdy building. Go to the lowest floor and stay away from doors, windows and outside walls. Your goal is to put as many walls between you and the tornado as you can. You should protect yourself from flying and falling debris with pillows or blankets. Mobile homes and vehicles are not safe in a tornado, so be sure you have plenty of time to get to a sturdy shelter.
Monitor the latest information from the National Weather Service in Norman by listening to weather radio or by visiting our website at weather.Gov/Norman.
Find the Weather for any City, State or ZIP Code, or Airport Code or Country:
Custom Weather Services
In addition to this website, we provide a number of free and professional weather services.