PARTICULARLY DANGEROUS SITUATION: HAARP Driven Severe Weather Racing Across Great Lakes, Midwest, and Moving to East Coast

DAY 2 CONVECTIVE OUTLOOK CORR 1
NWS STORM PREDICTION CENTER NORMAN OK
0105 AM CDT TUE JUN 11 2013

VALID 121200Z - 131200Z

...SYNOPSIS...
AMPLIFICATION OF THE LARGE-SCALE FLOW FIELD ALOFT IS FORECAST THIS
PERIOD...AS CENTRAL U.S. RIDGING RE-INTENSIFIES. THE SHORT-WAVE
TROUGH INITIALLY OVER THE NRN AND CENTRAL PLAINS IS PROGGED TO BEGIN
DIGGING SEWD INTO THE MIDWEST/OH VALLEY REGION -- WITH THE RIDGE
AMPLIFYING IN ITS WAKE. UPSTREAM...PROGRESSION OF THE UPPER
LOW/TROUGH LINGERING INVOF THE W COAST WILL BE HINDERED BY
DOWNSTREAM RIDGING -- AND THUS SOME DIGGING/AMPLIFICATION OF THE
TROUGH IS EXPECTED.

IN THE EAST...THE AFOREMENTIONED/ENERGETIC SHORT-WAVE TROUGH DIGGING
SEWD ACROSS THE MIDWEST/OH VALLEY WILL MOVE QUICKLY -- EMBEDDED
WITHIN BELT OF 50-PLUS KT MID-LEVEL WNWLYS. THIS TROUGH -- AND AN
ASSOCIATED LOW/COLD FRONT MOVING QUICKLY ACROSS THE AREA WILL FOCUS
A ZONE OF STORMS/SEVERE POTENTIAL THROUGH THE AFTERNOON AND EVENING
HOURS.

...MIDWEST/OH VALLEY/SRN GREAT LAKES REGION...
POTENTIALLY WIDESPREAD/SIGNIFICANT SEVERE WEATHER THREAT APPEARS TO
BE SETTING UP FOR DAY 2/WEDNESDAY ACROSS THE RISK AREA.

CONVECTION SHOULD BE ONGOING AT THE START OF THE PERIOD INVOF IA/SRN
MN...AHEAD OF THE UPPER SYSTEM AND NEAR THE NOSE OF A VEERED/REMNANT
LOW-LEVEL JET. STORMS -- AND LIMITED SEVERE THREAT -- MAY CONTINUE
EWD THROUGH THE MORNING TOWARD WI/NRN IL...WHILE THE AIRMASS AWAY
FROM THE ONGOING CLOUDS/CONVECTION HEATS/DESTABILIZES.

BY AFTERNOON...WITH THE LOW PROGGED OVER THE ERN IA VICINITY AND A
WARM FRONT LYING ESEWD ACROSS NRN IL/NRN INDIANA AND INTO OH/WRN PA
STORMS ARE FORECAST TO BEGIN REDEVELOPING -- BOTH INVOF THE LOW OVER
IA...AND IN A MORE ISOLATED FASHION EXTENDING EWD ALONG THE WARM
FRONT. INITIAL STORMS WILL LIKELY BE SUPERCELLULAR...GIVEN
FAVORABLE INSTABILITY AND STRONG SHEAR -- AND THUS A FEW TORNADOES
WILL BE POSSIBLE ALONG WITH LARGE HAIL AND DAMAGING WINDS. UPSCALE
GROWTH IS EXPECTED HOWEVER -- PARTICULARLY OVER WRN PORTIONS OF THE
AREA CLOSEST TO THE UPPER SYSTEM...WITH STORMS EVENTUALLY EXPECTED
TO EVOLVE INTO ONE OR MORE BOWING MCS WHICH WILL SHIFT QUICKLY ESEWD
ACROSS THE AREA. AS THIS OCCURS...THREAT FOR DAMAGING WINDS IS
FORECAST TO INCREASE...ALONG WITH LARGE HAIL. THE BOWING BAND OR
BANDS OF STORMS ARE PROGGED TO SHIFT QUICKLY EWD -- REACHING THE
UPPER OH VALLEY LATE IN THE EVENING WITH ONGOING/POTENTIALLY
WIDESPREAD DAMAGING WINDS.

[link to www.spc.noaa.gov]

Last Edited by DoorBert on 06/12/2013 07:16 PM