Particularly Dangerous Situation (PDS) Tornado Watch 123 (IN, IL, MI, far NW OH), also AR, MO

NOAA ^ | 4/18/13

[dirtboy]

URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 123 NWS STORM PREDICTION CENTER NORMAN OK 935 AM EDT THU APR 18 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF EASTERN ILLINOIS CENTRAL AND EASTERN INDIANA SOUTHERN LOWER MICHIGAN NORTHWEST OHIO OHIO LAKE MICHIGAN

* EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 935 AM UNTIL 500 PM EDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

* PRIMARY THREATS INCLUDE... SEVERAL INTENSE TORNADOES LIKELY SEVERAL SIGNIFICANT DAMAGING WIND GUSTS TO 80 MPH POSSIBLE A FEW VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES EAST NORTHEAST OF SOUTH BEND INDIANA TO 60 MILES SOUTH SOUTHWEST OF TERRE HAUTE INDIANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 122...

DISCUSSION...DISCRETE SUPERCELL DEVELOPMENT IS POSSIBLE AHEAD OF THE INTENSIFYING PRE-FRONTAL SQUALL LINE THAT WILL RAPIDLY MOVE NORTHEASTWARD ACROSS THE WATCH AREA THIS MORNING. GIVEN THE STRENGTH OF THE LOW-LEVEL SHEAR...A FEW TORNADOES ARE POSSIBLE...BOTH IN SUPERCELLS AND WITHIN MESO VORTICES EMBEDDED WITHIN THE LINE. ACTIVITY MAY BE CAPABLE OF PRODUCING STRONG TO LOCALLY EXTREME WIND DAMAGE...REGARDLESS OF WHETHER TORNADIC OR STRAIGHT LINE IN NATURE,

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 24050.

[Mrs. P]

Quick, everyone go turn in all your guns!

[chae]

Tornado touched down in MO last night, in Monroe County, a bit southeast of where I live.

[TheOldLady]

Thank you, dear. We're in northeast Ohio, so the tornadoes should be a state away to the west.

It's bright and sunny here with puffy white clouds, and it's 82° with a south wind at 8-15 MPH.

The barometer was dropping, but is now leveling off again.

And we live in The Fortress, our brick home that survived the last tornado that passed through here.

[dirtboy]

Yep, they sure wiffed on that PDS watch. Had some wind reports along the western edge and then nothing the rest of the day.

The entire moderate risk of severe weather yesterday from the Gulf Coast to Michigan largely didn't pan out.