STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK
DAY 1 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWE46 KWNS.
VALID 061630Z - 071200Z
THERE IS A MDT RISK OF SVR TSTMS OVER PORTIONS OF ERN KS...MUCH OF
MO AND AR...AND PARTS OF SRN IL AND NERN TX. THE MDT RISK IS TO
THE RIGHT OF A LINE FROM 35 E DAL 30 SSW MLC 15 N TUL 20 SSE EMP 15
ENE TOP 50 N SZL 45 SSE UIN 40 N SLO 40 SSE MTO 15 WNW EVV 35 SSW
PAH 60 ENE PBF 15 ENE ELD 30 NNW GGG 35 E DAL.
THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM
25 NNE SSI 55 NNW AYS 35 N ABY 30 NNE DHN 15 NNW CEW 20 NE MOB
45 NW MOB 40 WSW LUL 10 SSE HEZ 15 S ESF 45 NNE BPT 25 NW HOU
15 NE SAT 35 NNW HDO 50 NE DRT 40 W JCT 35 NNW JCT 20 S BWD
20 ENE SEP 25 NNW DAL 45 ESE OKC 30 S PNC 35 SSW ICT 20 N HUT
15 ESE CNK 20 ESE BIE 30 W LWD 30 SW BRL 10 SE CMI 25 NE IND
35 NNE DAY 30 ENE MFD 10 N JHW 20 SSW ROC 20 WNW ITH 30 NE IPT
20 N CXY 15 SSE HGR 45 E EKN 20 ENE CRW 25 S HTS 30 S JKL
40 NW HSS 15 SE HSS 10 E HKY 15 SW GSO 25 E DAN 30 S RIC 15 NE ORF.
GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 30 SSE DAB 10 SW ORL
55 WNW ORL 45 NNW GNV VLD 20 E MAI 10 W PFN ...CONT... 15 S PSX
NIR 10 E COT 35 SE DRT 35 N DRT 25 SSW SJT 25 SSE ABI 35 NNW MWL
40 W ADM 35 SW OKC 30 ESE CSM 40 NNW CDS 30 ESE TCC 10 NNE ABQ
35 NNW INW 35 N IGM 60 SSW DRA 40 SE FAT 25 NW SCK 30 N UKI
30 ENE ACV MFR 55 NNE LMT 65 NNE WMC 45 W OGD 45 NE VEL 55 SSE RWL
40 SW BFF 30 ENE SNY 25 SSW MCK 40 NE HLC 35 W LNK 25 N OMA
10 NW FOD 50 SE RST 10 NE LNR 35 SSW MKE 40 SSE AZO 20 NE TOL
...CONT... 60 NW 3B1 HUL.
GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 25 NNW HVR 75 W GGW
45 NW MLS 35 WNW 4BQ 20 NNW SHR 20 N WEY 30 E S80 35 SSW GEG
40 NW 4OM.
...SYNOPSIS...
BROAD BAND OF MODERATE-STRONG MID-UPPER LEVEL FLOW CONTINUES FROM
THE SWRN U.S....ACROSS THE SRN/CENTRAL PLAINS INTO THE OH
VALLEY/GULF COAST STATES. WITHIN THIS FLOW...MULTIPLE EMBEDDED
UPPER SPEED MAXIMUM WILL TRANSLATE ACROSS VERY UNSTABLE AIR MASS
PROVIDING FOCUS FOR SEVERE DEEP CONVECTION. MUCH OF THIS ACTIVITY
COULD BECOME VERY INTENSE WITH POSSIBLE TORNADOES AND VERY LARGE
HAIL.
...MS VALLEY/CENTRAL/ERN TX...
LATE MORNING SATELLITE IMAGERY INDICATES AN UPPER SHORTWAVE TROUGH
IS MOVING ACROSS CENTRAL KS...TRAILING SWD INTO NRN OK. PERSISTENT
CONVECTION HAS BEEN OBSERVED BENEATH THIS FEATURE WITH RECENT
INTENSIFICATION OVER ECNTRL KS. AS WEAK AREA OF HEIGHT FALLS
SPREAD DOWNSTREAM INTO MO...SFC DRY LINE WILL SHARPEN FROM ERN OK
INTO SERN KS/SWRN MO LATER THIS AFTERNOON. VERY MOIST/UNSTABLE
BOUNDARY LAYER WILL RETURN NWD AS E-W WARM FRONT LIFTS ACROSS
CENTRAL MO/SRN IL...PROVIDING DISTINCT BAROCLINIC ZONE FOR EWD
DEVELOPMENT. IT APPEARS THUNDERSTORMS WILL CONTINUE TO
INCREASE/SPREAD DOWNSTREAM WITH SWD DEVELOPMENT INTO THE WARM
SECTOR EAST OF THE DRY LINE LATER THIS AFTERNOON. INTENSE
SUPERCELL DEVELOPMENT IS EXPECTED ALONG WITH THE POSSIBILITY FOR
STRONG TORNADOES...AND VERY LARGE HAIL. THIS ACTIVITY SHOULD
SPREAD ACROSS MUCH OF MO/AR/ERN OK INTO SRN IL/IND LATER IN THE
FORECAST PERIOD.
FARTHER SOUTH...LOW LEVEL WARM ADVECTION ACROSS THE HILL COUNTRY OF
CENTRAL TX CONTINUES TO AID ELEVATED CLUSTER OF STRONG/SEVERE
THUNDERSTORMS. EXPANDING SHIELD OF MID-HIGH CLOUDINESS DOWNSTREAM
FROM THIS ACTIVITY SUGGESTS A SPEED MAX MAY BE ENHANCING THIS
DEVELOPMENT. ALTHOUGH BOUNDARY LAYER HEATING WILL BE REDUCED
ACROSS MUCH OF SERN TX...THERE APPEARS TO BE SUFFICIENT FORCING FOR
ADDITIONAL DEVELOPMENT AHEAD OF THIS FEATURE WHERE MUCAPES ARE
MODERATELY UNSTABLE.
...SERN U.S...
DEVELOPING MCS HAS GENERATED AN MVC OVER NRN GA WHERE EXPANDING
PRECIPITATION IS OBSERVED. THIS FEATURE IS MOVING JUST SOUTH OF
EAST AT ROUGHLY 40KT. CURRENT SPEED/MOVEMENT SUGGEST VORT CENTER
WILL MOVE ACROSS CENTRAL SC DURING THE MID/LATE AFTERNOON HOURS.
THERE APPEARS TO BE INCREASED LOW LEVEL WARM ADVECTION INTO THE
BACK SIDE OF THIS MCS AND ADDITIONAL DEVELOPMENT IS EXPECTED INTO
THE WARM SECTOR ACROSS PORTIONS OF AL AND GA AS INHIBITION WEAKENS
WITH CONTINUED HEATING. DEEP LAYER SHEAR IS MORE THAN ADEQUATE TO
SUPPORT STORM ROTATION...HOWEVER ONGOING MODE OF CONVECTION FAVORS
DAMAGING WINDS/LARGE HAIL AS PRIMARY SEVERE THREATS. ANY STORMS
THAT DO INITIATE DISCRETELY WITHIN THE WARM SECTOR MAY BECOME
SUPERCELLS WITH SOME THREAT FOR ISOLATED TORNADOES.
..DARROW.. 05/06/03
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED FOR 2000Z
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