Severe Thunderstorm Warning 30, NWS Corpus Christi, TX

COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
225 PM CDT SUN MAY 20 2001

SHORT TERM...MSAS REVEALS A COLD FRONT MOVG INTO THE NRN ROCKIES/NRN
PLAINS THIS AFTN. THIS FRONT IS ASSOCIATED WITH AN UPPER TROUGH/LOW
WHICH WL BE MOVG EWD ACRS THE PLAINS MONDAY. AS THIS UPPER
DISTURBANCE MOVES EWD...THE SURFACE FRONT WL MOVE INTO THE CWA BY
LATE MONDAY. AN UPPER JET WILL AFFECT THE REGION THROUGH TUESDAY.
THUS...EXPECT SURFACE AND UPPER FORCING TO CONTRIBUTE TO CONVECTION
MONDAY/MONDAY NIGHT. HWR...INSTABILITY WL LIKELY BE THE LIMITING
FACTOR... NOTWITHSTANDING THE FACT THAT STG VERTICAL SHEAR...WHICH
IS LIKELY MON IN ADVANCE OF THE FRONT...CAN OVERCOME BUOYANCY. IF
THUNDERSTORMS FORM...THEY COULD BECOME STRONG...HWR LEAVE OUT TSTM
SEVERITY FOR NOW OWING TO STATIC STABILITY CONCERNS.

EXTENDED...AFTER FROPA LATE MONDAY/EARLY TUESDAY...SIGNIFICANT DRYING
IS EXPECTED. THE MRF SOLN...ALTHOUGH ENSEMBLES DO NOT ADD TOO MUCH
CREDENCE TO IT...PROGS THE FOREGOING UPPER LOW TO REMAIN
QUASI-STATIONARY AND CONTRIBUTE TO A SECONDARY SURGE/FRONT FRIDAY.
DO NOT EXPECT THIS FRONT TO TRIGGER PCPN AS MSTR WL PROBABLY BE
INSUFFICIENT.

MARINE...WINDS OVER THE BAYS WILL CONTINUE AROUND 20 KNOTS WITH
HIGHER GUSTS INTO THE EVENING HOURS...THUS WILL MAINTAIN SCA OVER
THE BAYS THROUGH THE EVENING. OFFSHORE BUOYS WERE REPORTING WINDS IN
THE 15 TO 20 KNOT RANGE AND AM EXPECTING THE GRADIENT TO STRENGTHEN
OVERNIGHT...THUS WILL GO SCA OFFSHORE AS WELL. GRADIENT RELAXES ON
MON...MORE SO OVER THE BAYS...AS A CF APPROACHES CENT TX. THE
CF...ALONG WITH SHRAS AND TSRAS...IS PROGD TO MOVE OFFSHORE
OVERNIGHT MON NIGHT WITH A STRONG NORTH WIND DEVELOPING IN ITS WAKE.
WILL GO WITH A MWS ON THE UPCOMING LATE SEASON CF. ONSHORE FLOW
QUICKLY REDEVELOPS WED AND CONTS THROUGH THUR...AS THE SFC HIGH
SHIFTS EAST. MRF PROGS A NLY FLOW ALOFT TO CONT THRU THE
WEEK...ALLOWING ANOTHER SURGE OF HIGH PRESS TO SINK SWD. WINDS BACK
TO THE NE...BUT REMAINING FAIRLY WEAK.

CRP EB 075/088 068/079 064 87034
VCT EB 074/087 059/077 058 87045
LRD EB 075/089 067/079 065 87023

.CRP...SCA GMZ230-235-250-255-270-275.

87 (SYNOPTIC)
81 (MESO)

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI,TX
715 PM CDT MON MAY 20 2001

TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
          ...COUNTY LOCATION....

0555 PM    SOUTH SHORE OF CHOKE CANYON TX 1.75 INCH HAIL
05/20/01   LIVE_OAK                       REPORTED BY GENERAL PUBLIC

0557 PM    THREE RIVERS AREA              WIND DAMAGE
05/20/01   LIVE_OAK                       *** 1 INJ ***
                                          REPORTED BY LOCAL SPOTTER
                                          PERSON WAS INJURED BY A
                                          FALLING TREE LIMB

605 PM     THREE RIVERS AREA              WIND DAMAGE
05/20/01   LIVE_OAK                       REPORTED BY SHERIFF'S OFFICE
                                          ONE-HALF OF ROOF BLOWN OFF A
                                          CATHOLIC CHURCH

0600 PM    THREE RIVERS PRISON            WIND DAMAGE
05/20/01   LIVE_OAK                       REPORTED BY GENERAL PUBLIC
                                          TOWER, FENCES, AND TREES BLOWN
                                          DOWN DUE TO 50 TO 60 MPH WIND
                                          GUST.

0557 PM    CHOKE CANYON                   1.75 INCH HAIL
05/20/01   LIVE_OAK                       REPORTED BY LOCAL SPOTTER

0550 PM    THREE RIVERS AREA              1.75 INCH HAIL
05/20/01   LIVE_OAK                       REPORTED BY SHERIFF'S OFFICE

0615 PM    THREE RIVERS AREA              WIND DAMAGE
05/20/01   LIVE_OAK                       REPORTED BY SHERIFF'S OFFICE
                                          TREES AND POWER LINES KNOCKED
                                       =   OVER. ROOF BLOWN OFF HOUSE.

COLLINS