River Flood Warning 93, NWS St. Louis, MO

882 
WGUS83 KLSX 310108
FLSLSX
Flood Statement
National Weather Service St Louis MO
808 PM CDT Sat Mar 30 2019

...The flood warning continues for the following rivers in 
Missouri...
 
  Dardenne Creek at St. Peters


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Rainfall heavier than forecast could cause river levels to rise even 
higher than predicted.  The National Weather Service will monitor 
this developing situation and issue follow up statements as 
conditions or forecasts change.

Safety message:  Never drive cars, trucks, or sport utility vehicles 
through flooded areas.  The water may be too deep to allow for safe 
passage.

This product, along with additional weather and stream information, 
is available at http://water.weather.gov/ahps2/index.php?wfo=lsx.

&&

MOC183-010107-
/O.EXT.KLSX.FL.W.0093.000000T0000Z-190401T0623Z/
/DRCM7.1.ER.190330T1920Z.190331T0000Z.190331T0623Z.UU/
808 PM CDT Sat Mar 30 2019

The Flood Warning continues for
  the Dardenne Creek at St. Peters
* until late Sunday night.
* At  7:00 PM Saturday the stage was 18.6 feet.
* Flood stage is 18.0 feet.
* Minor flooding is forecast.
* The river is forecast to continue falling to below flood stage by 
  after midnight tonight.

&&
                   Fld   Latest              7 a.m. Forecast
LOCATION           Stg  Obs Stg     03/31  04/01  04/02  04/03  04/04

Dardenne Creek
  St. Peters      18.0   18.57      15.1    8.8    5.3    4.0    3.4


&&


LAT...LON 3875 9063 3879 9066 3883 9063 3882 9061
      3876 9062                       



$$

Maples

354 
WGUS83 KLSX 311113
FLSLSX
Flood Statement
National Weather Service St Louis MO
613 AM CDT Sun Mar 31 2019

...The flood warning is cancelled for the following rivers in 
Missouri...
 
  Dardenne Creek at St. Peters

.This is the last statement for this event...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The National Weather Service will monitor 
this developing situation and issue follow up statements as 
conditions or forecasts change.

Safety message:  Never drive cars, trucks, or sport utility vehicles 
through flooded areas.  The water may be too deep to allow for safe 
passage.

This product, along with additional weather and stream information, 
is available at http://water.weather.gov/ahps2/index.php?wfo=lsx.

&&

MOC183-311143-
/O.CAN.KLSX.FL.W.0093.000000T0000Z-190401T0623Z/
/DRCM7.1.ER.190330T1920Z.190331T0220Z.190331T0658Z.UU/
613 AM CDT Sun Mar 31 2019

The Flood Warning is cancelled for
  the Dardenne Creek at St. Peters.
* At  6:00 AM Sunday the stage was 14.7 feet.
* Flood stage is 18.0 feet.
* The river fell below flood stage at  1:58 AM Sunday.
* The river will continue falling to 8.8 feet by tomorrow morning.


&&
                   Fld   Latest              7 a.m. Forecast
LOCATION           Stg  Obs Stg     04/01  04/02  04/03  04/04  04/05

Dardenne Creek
  St. Peters      18.0   14.70       8.8    5.3    4.0    3.4    3.1


&&


LAT...LON 3875 9063 3879 9066 3883 9063 3882 9061
      3876 9062                       



$$

Area Forecast Discussion
National Weather Service Saint Louis MO
318 PM CDT Sat Mar 30 2019

.SHORT TERM...  (Through Late Sunday Night)
Issued at 316 PM CDT Sat Mar 30 2019

A strong cold front has shifted just southeast of our forecast area
this afternoon with strong low level cold air advection behind it
leading to falling temperatures this afternoon.  There was post
frontal precipitation across much of the forecast area this
afternoon due to an upper level trough with a strong embedded
shortwave moving through MO.  The precipitation type was liquid rain
from STL south and east, but was a mix of rain, sleet and snow north
and west of STL as surface temperatures have fallen into the middle
30s.  With air temperatures above the freezing mark and warm ground
temperatures any accumulation was light and mainly on elevated
surfaces and grassy areas with roads just wet.  This precipitation
should quickly exit the forecast area by early evening, followed by
rapid clearing.  Below normal temperatures are forecast tonight due
to the clearing sky, diminishing winds, and surface dew points
dropping into the teens to lower 20s.  These unseasonably cold
temperatures will continue through Sunday night with a clear sky and
dry conditions as a surface ridge moves eastward from the Plains
through MO and IL.

GKS

.LONG TERM...  (Monday through Next Saturday)
Issued at 316 PM CDT Sat Mar 30 2019

NW upper level flow will prevail for the first half of the work week
as upper level ridging builds into the area. At the surface, we'll
see high pressure slide to our southeast, turning our winds around
to the south. Ridging aloft and high pressure at the surface will
keep the weather fairly quite across the mid-Mississippi Valley. In
fact, the only chance we have for precip is as a weak embedded
shortwave ripples through the NW flow on Tuesday when model guidance
spits out some scattered showers. Fortunately that southerly flow
will keep temps warm enough so that any precip that does manage to
reach the ground will fall as rain. Generally southerly flow will
continue to moderate temps through mid week, allowing highs to push
near 70 by Wednesday.

Things should turn a bit more noisy by Wednesday night, when a deep
upper trough is progged to sweep across the central CONUS. This will
drive a surface low from the OK/TX panhandles on Wednesday night
through NE MO by Thursday evening. Guidance is in reasonably good
agreement showing WAA precip beginning around 06z Thursday before
keeping varying degrees of precip around until the cold front sweeps
through on Thursday night. This low track and timing certainly
introduces at least some chance for strong thunderstorms on Thursday
afternoon and evening, though plenty of time remains for forecast
changes in these features. Furthermore, even if both those features
hold, being several days away, it's nearly impossible to tell just
how unstable we'll get once we're in the warm sector. For the time
being, I will be sticking with thunder in the forecast and keep the
mention of strong storms to this discussion.

Beyond that storm, upper level ridging and surface high pressure
will regain their hold on the region. This will likely set the stage
for a quiet start to next weekend with highs again pushing toward 70.

BSH

&&

.AVIATION...  (For the 18z TAFs through 18z Sunday Afternoon)
Issued at 1146 AM CDT Sat Mar 30 2019

The cold front has shifted southeast of the taf sites late this
morning with gusty northerly winds at the taf sites as a surface
ridge centered over the northern Plains builds southeastward into
the region. The surface wind will become more northwesterly
tonight and gradually diminish as the surface pressure gradient
relaxes. An upper level disturbance will continue to bring light
rain to the taf sites this afternoon with a brief period of light
snow possible in UIN and COU as the temperature continues to drop
with cold air advection. The cloud ceiling may drop into the MVFR
category this afternoon in UIN, and should vary between 700 feet
and 2000 feet in COU and the St Louis metro area. The cloud cover
will clear out rapidly this evening.

SPECIFICS FOR KSTL: The cold front has shifted southeast of STL
late this morning with gusty northerly winds as a surface ridge
centered over the northern Plains builds southeastward into the
region. The surface wind will become more northwesterly tonight
and gradually diminish as the surface pressure gradient relaxes.
An upper level disturbance will continue to bring rain to STL
this afternoon. The cloud ceiling should vary between 700 feet
and 2000 feet this afternoon. The cloud cover will clear out
rapidly this evening.

GKS

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...None.
IL...None.
&&

WFO LSX

Hazardous Weather Outlook
National Weather Service Saint Louis MO
431 AM CDT Sat Mar 30 2019

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-310945-
Adams IL-Audrain MO-Bond IL-Boone MO-Brown IL-Calhoun IL-Callaway MO-
Clinton IL-Cole MO-Crawford MO-Fayette IL-Franklin MO-Gasconade MO-
Greene IL-Iron MO-Jefferson MO-Jersey IL-Knox MO-Lewis MO-Lincoln MO-
Macoupin IL-Madison IL-Madison MO-Marion IL-Marion MO-Moniteau MO-
Monroe IL-Monroe MO-Montgomery IL-Montgomery MO-Osage MO-Pike IL-
Pike MO-Ralls MO-Randolph IL-Reynolds MO-Saint Charles MO-
Saint Clair IL-Saint Francois MO-Saint Louis City MO-Saint Louis MO-
Sainte Genevieve MO-Shelby MO-Warren MO-Washington IL-Washington MO-
431 AM CDT Sat Mar 30 2019

This Hazardous Weather Outlook is for portions of eastern and
central Missouri as well as west central and southwest Illinois.

.DAY ONE...Today and tonight.

There is a chance of thunderstorms this morning over southeast
Missouri and southwest Illinois.

Moderate to major river flooding is ongoing at points on the
Mississippi, Illinois, and Missouri Rivers. See the appropriate
Flood Statements for specific details.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Major river flooding is expected to continue at Saverton Lock and
Dam on the Mississippi River and at Hardin along the Illinois River.
Otherwise, moderate flooding will continue at points on the
Mississippi and Missouri Rivers. See the appropriate Flood
Statements for specific details.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

Britt