Flash Flood Warning 103, NWS Springfield, MO

Issued

Jun 12, 1999, 12:36 AM CDT (05:36 UTC)

Expired

Jun 12, 1999, 3:40 AM CDT

In force

3 hr

Issued by

NWS Springfield, MO

Area

Whole counties

County Shannon County, MO

000 
TTAA00 KSGF 120537
FFWSGF
MOC203-120840-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1236 AM CDT SAT JUN 12 1999

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SHANNON COUNTY IN SOUTH CENTRAL MISSOURI

* UNTIL 340 AM CDT

* AT 1229 AM...WEATHER SERVICE DOPPLER RADAR WAS INDICATING A
  THUNDERSTORM PRODUCING HEAVY RAINFALL.  THE STORM WAS LOCATED IN
  NORTHWEST SHANNON COUNTY...OR NEAR THE COMMUNITY OF AKERS. THE
  STORM WAS NEARLY STATIONARY.  DOPPLER RADAR WAS ESTIMATING UP TO
  TWO INCHES WITHIN THE PAST 30 MINUTES WITH THIS THUNDERSTORM.

* UP TO AN ADDITIONAL THREE INCHES OF RAIN ARE EXPECTED THROUGH 300
  AM. THIS RAIN WILL FALL ACROSS THE OZARK NATIONAL SCENIC RIVERWAYS
  ...CAUSING FLOODING OF AREAS ALONG THE CURRENT RIVER. LOW WATER
  CROSSING WILL LIKELY FLOOD...DO NOT CROSS WATER COVERED ROADS.


THIS IS A DANGEROUS SITUATION.  IF CAMPING...BE PREPApRED TO MOVE TO
HIGHER GROUND IMMEDIATELY SHOULD FLOODING DEVELOP.  MOTORISTS SHOULD
AVOID ALREADY FLOODED ROADS...INCLUDING LOW WATER CROSSINGS.

DS/PV

NWS Springfield, MO wrote its last area forecast discussion before this flash flood warning went out at Jun 11, 2:52 PM CDT, 9 hours 44 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
252 PM CDT FRI JUN 11 1999

KSGF 88D LIT UP AGAIN WITH CLUSTERS OF TSTMS THIS AFTN.  VISIBLE
IMAGERY SHOWS SEVERAL OUTFLOW BOUNDARIES INTERACTING TO FOCUS
CONVECTION.  SURFACE ANALYSIS SHOWS AN ILL DEFINED FRONTAL BOUNDARY
FROM IOWA INTO CEN KS.

LITTLE DIFFERENCES IN MODELS AS THE CWFA REMAINS UNDER WEAK FLOW
ALOFT. CWFA WILL REMAIN ON WRN PERIPHERY OF A BROAD RIDGE COVERING
THE ERN U.S. INTO SAT.  FLOW ARND THIS RIDGE WILL TRANSPORT DEEP
LAYER OF SUBTROPICAL MOISTURE INTO THE AREA.  THE WEAK FRONTAL
BOUNDARY WILL LOSE ITS IDENITY AS IT SINKS INTO THE SWRN MO SAT.
MODELS INDICATE 850 MB FLOW SHIFTING TO THE NE BEHIND THE BOUNDARY
BUT LITTLE CHANGE IN THE MOIST AIRMASS.  MODELS SUGGEST GOOD 850 MB
MOISTURE CONVERGENCE AND THETA-E ADVECTION INTO SC MO ALONG THE
BOUNDARY SAT AFTN/NGT. MOST ACTIVITY WILL DIURNALLY DRIVEN BUT SOME
ACTIVITY WILL LINGER DURING THE NGT AS REMNANTS OF THE FRONT PARK
OVER THE AREA. WITH WEAK STEERING CURRENTS...LOCALIZED VERY HEAVY
RAINFALL AMOUNTS AND FLOODING WILL BE POSSIBLE.

IN THE EXTENDED...LITTLE CHANGE IN PATTERN THROUGH MON. UPPER FLOW
BEGINS TO TURN MORE WLY BY TUE WHICH WILL RESULT IN DECREASE OF
DIURNAL CONVECTION.

(PRELIMINARY CCF FOR COORDINATION PURPOSES ONLY)

CCF
SGF EE 065/081 063/080 063 115444
JLN EE 065/082 064/081 063 113333
UNO EE 067/084 066/083 064 115444
VIH EE 065/080 064/080 063 114444

FOSTER

Flash Flood Warnings in Missouri, 1999Every flash flood warning in 1999

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.