National Weather Service Raw Text Product

000 
ACUS1 KMKC 041921
MKC AC 041930

CONVECTIVE OUTLOOK...REF AFOS NMCGPH94O

VALID 041930 - 051200Z

REF WW 333...VALID UNTIL 2300Z.
REF WW 334...VALID UNTIL 0000Z.
REF WW 335...VALID UNTIL 0300Z.

THERE IS A HIGH RISK OF SVR TSTMS OVR PTNS OF ERN KY...NERN
TN...SRN WV...CNTRL/SRN VA...AND NRN NC. THE HIGH RISK AREA IS TO
THE RGT OF A LN FM 20 SE OAJ 20 NW SOP HKY TYS 40 SW LOZ
25 W JKL HTS SHD 35 SSW WAL.

THERE IS A MDT RISK OF SVR TSTMS OVR PTNS OF SERN MO...SRN IL...SRN
IND..WRN AND MIDDLE TN...A LRG PART OF KY...AND NERN AR. THE MDT
RISK AREA IS TO THE RGT OF A LN FM TYS 45 WSW JBR 30 SW UNO
25 SE VIH ALN 20 S HUF 20 W LUK HTS 20 W JKL 40 SW LOZ TYS.

THERE IS A SLGT RISK OF SVR TSTMS TO THE RGT OF A LN FM 25 ENE MYR
40 NW AND 25 NW MSL 20 WSW MEM 35 ENE PBF 10 NNE SHV 55 NNE CLL
10 NW ACT 15 ESE MWL 30 N FTW FYV 15 WSW TBN 40 E COU 35 ESE UIN
15 WNW DEC 25 WSW MIE DAY CMH 15 SE LBE ACY.

THERE IS A SLGT RISK OF SVR TSTMS TO THE RGT OF A LN FM TVL MER
20 E SJC 50 SE UKI 35 E ACV 45 NW MFR 50 NNE MFR 35 NE LMT TVL.

GEN TSTMS ARE FCST TO THE RGT OF A LN FM GLS 20 ENE AUS 20 SW MWL
50 SSW LTS 55 W CSM 15 NE DHT 30 SSE RTN 15 NW SAF 10 WNW GNT
30 NE E03 25 S INW 45 NNE TRM LAX ...CONT...35 W CTB 10 W 3HT
40 NW SHR 50 SSE SHR 15 SE CPR 45 WNW AKO 25 NW LBL 35 SE DDC
25 W EMP 10 S FLV 20 WNW UIN 10 WNW LAF 25 SE FWA 25 NE PSB EWR.

DERECHO SVR WX EVENT CURRENTLY TAKING PLACE ACRS PTNS OF THE OH VLY
AND IS XPCD TO MOV INTO THE CNTRL APLCNS AND MID ATLC CST AREA DURG
THE RMNDR OF THE AFTN INTO TNGT. BOW ECHO RACING EWD AT NR 70 KT
OVER ERN KY HAS PRODUCED SGFNT WND DMG ACRS PTNS OF KY WITH WNDS AS
HIGH AS 87 KT. THIS ACTVTY IS FEEDING ON LO LVL WRM ADVCTN OF VRY
HIGH CAPE AIR OVR ERN KY. CAPES HV BEEN AS HIGH AS 5000 J/KG! STG
REAR INFLOW JET INTO STMS HAS PRODUCED THE BOW ECHO AND IS XPCD TO
CONT THROUGHOUT THE PD. SCNDRY BOW MAY BE DVLPG ATTM OVR WRN VA 20
SE LWB. ALL OF THIS ACTVTY SHUD RIDE ALG STG TEMP GRADIENT BTWN
HIGH CAPE AIR TO THE S AND STBL AIR TO THE N OF BDRY. SGFNT DMGG
WNDS ARE XPCD TO CONT WITH THESE STMS AS THEY MOV ACRS PTNS OF
VA/WV/ERN KY/TN AND NC INTO TNGT.

STG TSTMS ARE ALSO DVLPG ALG CDFNT N OF STL IN W CNTRL IL. THIS IS
NR SFC LO. SFC LO IS PROGD TO MOV INTO SWRN PA BY TMW MRNG. AMS IS
MDTLY UNSTBL S OF LO FM STL SWD INTO AR WITH LI BTWN MINUS 4 TO
MINUS 9. XPC TSTMS OVR IL TO BCM SVR DURG THE NXT HR OR TWO AND MOV
ALG BDRY ACRS THE OH RIVER VLY AREA AGAIN. THESE STMS COULD ALSO
PR.OD WND DMG AS THEY MOV RPDLY ESEWD.

AMS IS DSTBLZG OVR THE SAC VLY NWD INTO SRN OREGON. AS TROF MOVS
INLAND...ISOLD SVR TSTMS MAY OCR DURG THE RMNDR OF THE AFTN INTO
EVE.

..SMITH.. 06/04/93