Flash Flood Warning 13, NWS Omaha, NE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
250 PM CDT THU JUN 3 1999

MAIN CONCERN FOR TNGT IS POTENTIAL FOR SVR TSTMS AND LOCALLY HEAVY
RAIN.  SFC ANLYS AT 19 UTC SHOWED MAIN SFC LOW IN MT...BUT THERE
WAS A HINT OF A WEAK MESO LOW IN NERN CO.  WARM FRONT APPEARED TO
BE FROM N OF SGF TO NEAR SLN TO MCK AND SNY.  DRY LINE WAS FROM
THE NE PNHDL INTO WRN KS AND THE TX/OK PNHDLS.  PLENTY OF LOW LVL
MOISTURE SURGING N...DEWPTS IN THE UPR 60S-LWR 70S.  WILL GO WITH
LIKELY TSTM WORDING FOR TNGT MOST ZONES.  IT APPEARS THAT AN MCS
WILL DEVELOP EITHER TO THE WEST AND THEN MOVE E/ESE OR WARM FRONT
MAY BECOME ACTIVE LATE THIS AFTN OR EVENING.  LOWS TNGT CLOSE TO
NGM MOS SEEM OK...GENLY AROUND 60 TO THE MID 60S.

VERY COLD SYSTEM AT 500 MB LOCATED OVER CNTRL CA CONTS TO DROP S.
SOUTHWEST FLOW ALOFT CONTS INTO AT LEAST SUNDAY...WHEN MAIN SYSTEM
OR AT LEAST WHAT IS LEFT OF IT LIFTS OUT.  HOWEVER...MODELS SHOW
ANOTHER SYSTEM READY TO DROP MOVE INTO THE WESTERN UNITED STATES.
THINK AFTER SOME LINGERING MORNING PCPN ON FRIDAY...MUCH OF THE DAY
COULD BE DRY.  700 MB TEMPS WARM...AND MAY BE ENOUGH TO CAP THINGS OFF.
TSTMS COULD DVLP AGAIN OVER THE WRN PLAINS WHERE CAP WILL BE WEAKER...
AND THEN MOVE E INTO THE AREA FRI NGT.  FOR SAT...WILL HOLD SOME CHC
OF TSTMS IN.  OVERALL...NGM AND AVN MOS ARE PRETTY SIMILAR THRU FRI NGT
AND HAVE NO REASON TO DEVIATE SGFNTLY.  NGM APPEARS TOO COOL ON SAT...
ESPECIALLY IN WESTERN ZONES.  FIRST DRAFT OF WORK ZONES WAS SENT
EARLIER.  WILL WAIT TO SEE IF ANYTHING GETS GOING BEFORE FINAL ZFP
GOES OUT.

THOUGHT ABOUT A FLASH FLOOD WATCH FOR TNGT...BUT THE MAIN FOCUS DID NOT
APPEAR TO BE WHERE IT IS THE WETTEST.  ALSO...PRECIPITABLE WATER VALUES
AT 12Z WERE NOT ALL THAT HIGH.

.OMA...NONE
MILLER

NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093-
IAZ043-055-056-069-079-080-090-091-041200-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1142 PM CDT THU JUN 3 1999

...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA...

STORM SPOTTER ACTION WILL LIKELY BE REQUIRED IN NORTHEAST NEBRASKA
TONIGHT.

STRONG THUNDERSTORMS MOVING FROM NORTH CENTRAL INTO NORTHEAST
NEBRASKA ARE LIKELY TO CONTINUE MUCH OF THE NIGHT.  A SEVERE
THUNDERSTORM WATCH IS IN EFFECT FOR THE AREA UNTIL 5 AM.  MOST OF
THE STRONG STORMS ARE EXPECTED TO REMAIN NORTH OF THE PLATTE RIVER
AND NORTH OF BLAIR.

SOME STORMS COULD BE STRONG ENOUGH TO PRODUCE LARGE HAIL AND
DAMAGING WINDS.  HEAVY RAIN IS ALSO POSSIBLE.  RAINFALL AMOUNTS OF
AN INCH OR TWO IN THREE HOURS OR LESS COULD BE ENOUGH TO PRODUCE
FLASH FLOODING.

POLLACK

NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093-
IAZ043-055-056-069-079-080-090-091-041200-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1142 PM CDT THU JUN 3 1999

...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA...

STORM SPOTTER ACTION WILL LIKELY BE REQUIRED IN NORTHEAST NEBRASKA
TONIGHT.

STRONG THUNDERSTORMS MOVING FROM NORTH CENTRAL INTO NORTHEAST
NEBRASKA ARE LIKELY TO CONTINUE MUCH OF THE NIGHT.  A SEVERE
THUNDERSTORM WATCH IS IN EFFECT FOR THE AREA UNTIL 5 AM.  MOST OF
THE STRONG STORMS ARE EXPECTED TO REMAIN NORTH OF THE PLATTE RIVER
AND NORTH OF BLAIR.

SOME STORMS COULD BE STRONG ENOUGH TO PRODUCE LARGE HAIL AND
DAMAGING WINDS.  HEAVY RAIN IS ALSO POSSIBLE.  RAINFALL AMOUNTS OF
AN INCH OR TWO IN THREE HOURS OR LESS COULD BE ENOUGH TO PRODUCE
FLASH FLOODING.

POLLACK