[LeArc] Tornado Watch till 8pm

[Duane Whittingham]

urgent - immediate broadcast requested
Tornado Watch number 130
NWS Storm Prediction Center Norman OK
1230 PM CDT sun Apr 2 2006

The NWS Storm Prediction Center has issued a
Tornado Watch for portions of

        southeast Iowa
        extreme W central Illinois
        much of central and northeast Missouri

Effective this Sunday afternoon and evening from 1230 PM until 800
PM CDT.

Tornadoes... hail to 2.5 inches in diameter... thunderstorm wind
gusts to 70 mph... and dangerous lightning are possible in these
areas.

The Tornado Watch area is approximately along and 70 statute miles
east and west of a line from 10 miles east northeast of Ottumwa
Iowa to 25 miles southwest of West Plains Missouri. For a
complete depiction of the watch see the associated watch outline
update (wous64 kwns wou0).

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 129...

Discussion... a pronounced mid level trough is rotating ewd from ern
KS to wrn MO... while an associated surface low is developing enewd
across far NW MO and SW IA. E of the low... the warm front is
lifting nwd into srn IA. The warm sector across MO and srn IA will
continue to destabilize through the afternoon... with convective
initiation becoming more probable with time along the N-S remnant
dryline that is moving into wrn MO. Very steep lapse rates and
MLCAPE cape values of 1500-2000 j/kg by mid afternoon... along with
strong deep layer shear... will favor supercell development along and
E of the dryline. Low-level shear and moisture will tend to be
maximized for storms moving across the surface warm front toward NE
MO/se IA later this afternoon... though a couple of tornadoes will
also be possible with the open warm sector across MO.
Otherwise... very large hail and damaging winds will be possible with
the strongest storms.

Aviation... tornadoes and a few severe thunderstorms with hail
surface and aloft to 2.5 inches. Extreme turbulence and surface
wind gusts to 60 knots. A few cumulonimbi with maximum tops to
500. Mean storm motion vector 25045.


... Thompson


TORNADO WATCH OUTLINE UPDATE FOR WT 130
NWS STORM PREDICTION CENTER NORMAN OK
203 PM CDT SUN APR 02 2006

TORNADO WATCH 130 REMAINS IN EFFECT UNTIL 800 PM CDT FOR THE
FOLLOWING LOCATIONS

ILC001-009-067-071-109-149-187-030100-
/O.CON.KWNS.TO.A.0130.000000T0000Z-060403T0100Z/

IL
.    ILLINOIS COUNTIES INCLUDED ARE

ADAMS                BROWN               HANCOCK
HENDERSON            MCDONOUGH           PIKE
WARREN
$$

-------------------------------------------------------
Amateur Radio Operator
Duane Whittingham - N9SSN
Skywarn, ARES/RACES, EMA/ESDA
Red Cross and SATERN