Alert archive / Missouri / Areal Flood Warnings in 2017

Areal Flood Warning 21, NWS St. Louis, MO

May 2, 20177 counties in Missouri; Randolph County, Illinois

NWS St. Louis, MO issued this areal flood warning at May 2, 2017, 4:43 PM CDT for 7 counties in Missouri; Randolph County, Illinois. It was in force for 3 days. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 2, 2017, 4:43 PM CDT (21:43 UTC)
Expired
May 5, 2017, 4:45 PM CDT
In force
3 days
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Randolph County, IL, Crawford County, MO, Iron County, MO, Madison County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 114 km from the middle of the area, began a volume at 21:49 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
May 3, 8:00 PM CDTHEAVY RAIN 0.931 Sse Cook Station, MOFROM MISSOURI MESONET. EVENT TOTAL SO FAR. RAIN STILL ONGOING.
May 4, 9:00 PM CDTHEAVY RAIN 3.12 Ne French Village, MOSTORM TOTAL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.7 hours before the alert went out and 288 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2017-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2017-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 205 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1747 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
205 m²/s²
0-3 km storm-relative helicity
280 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

336 
WGUS43 KLSX 022143
FLWLSX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service St Louis MO
443 PM CDT TUE MAY 2 2017

ILC157-MOC055-093-123-179-186-187-221-052145-
/O.NEW.KLSX.FA.W.0021.170502T2143Z-170505T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Iron MO-Ste. Genevieve MO-Reynolds MO-
Madison MO-Washington MO-St. Francois MO-
443 PM CDT TUE MAY 2 2017

The National Weather Service in St Louis has issued a

* Flood Warning for...
  Randolph County in southwestern Illinois...
  Crawford County in east central Missouri...
  Iron County in southeastern Missouri...
  Ste. Genevieve County in southeastern Missouri...
  Reynolds County in southeastern Missouri...
  Madison County in southeastern Missouri...
  Washington County in east central Missouri...
  St. Francois County in southeastern Missouri...

* Until 445 PM CDT Friday.

* At 440 PM CDT, Department of Transportation and county officials 
  indicate some roads remain closed due to high water from the heavy 
  rainfall event that occurred from Friday through Sunday. While 
  some of this water may recede today, another heavy rainfall event 
  is forecast to impact the area beginning tonight and lasting into 
  Thursday. Another 2 to 4 inches of rain is possible with this next 
  wave of heavy rain, and this is expected to produce renewed areal 
  flooding of small creeks, streams, and roads.

* Some locations that will experience flooding include...
  Farmington, Chester, Sullivan, Bonne Terre, Desloge, Ste.
  Genevieve, Sparta, Fredericktown, Red Bud, Cuba, Potosi,
  Steelville, Bourbon, Bismarck, Ironton, Leadwood, Anthonies Mill,
  Bremen, Park Hills and Reynolds.

This includes the following highways...
 Interstate 44 in Missouri between exits 203 and 218.
 Interstate 55 in Missouri between exits 141 and 162.

This also includes  Washington State Park, St. Joe State Park, St.
Francois State Park, Onondaga Cave State Park, Johnsons Shut-Ins
State Park, Hawn State Park, Fort Davidson Historic Site, Felix Valle
House State Park, Elephant Rocks State Park, Taum Sauk Mountain State
Park, Missouri Mines Historic Site, and Clearwater Lake Recreational
Area.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.

&&

LAT...LON 3705 9096 3726 9116 3750 9121 3751 9131
      3759 9116 3770 9116 3779 9131 3779 9153
      3820 9153 3821 9079 3800 9059 3813 9004
      3822 9003 3822 8959 3781 8968 3791 8984
      3764 9015 3731 9015 3727 9074 3705 9078

$$

Tilly
5 follow-up statements
277 
WGUS83 KLSX 031521
FLSLSX

Flood Statement
National Weather Service St Louis MO
1021 AM CDT WED MAY 3 2017

ILC157-MOC055-093-123-179-186-187-221-052145-
/O.CON.KLSX.FA.W.0021.000000T0000Z-170505T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Iron MO-Ste. Genevieve MO-Reynolds MO-
Madison MO-Washington MO-St. Francois MO-
1021 AM CDT WED MAY 3 2017

...A FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FRIDAY FOR
RANDOLPH COUNTY IN SOUTHWESTERN ILLINOIS...CRAWFORD COUNTY IN EAST
CENTRAL MISSOURI...IRON...STE. GENEVIEVE...REYNOLDS AND MADISON
COUNTIES IN SOUTHEASTERN MISSOURI...WASHINGTON COUNTY IN EAST CENTRAL
MISSOURI AND ST. FRANCOIS COUNTIES IN SOUTHEASTERN MISSOURI...

At 1017 AM CDT, Doppler radar indicated a large area of rain that 
will overspread the area this morning. Radar and rain gages indicate 
that some locations have received nearly half an inch of rain since 
early this morning from the first wave of showers and thunderstorms. 
Rain will become more continuous later today and and into tonight 
and this is expected to produce large amounts of standing water as 
well as renewed areal flooding of small creeks, streams, and roads.

Some locations that will experience flooding include...
Farmington, Chester, Sullivan, Bonne Terre, Desloge, Ste. Genevieve,
Sparta, Fredericktown, Red Bud, Cuba, Potosi, Steelville, Bourbon,
Bismarck, Ironton, Leadwood, Anthonies Mill, Bremen, Park Hills and
Reynolds.

This also includes  Washington State Park, St. Joe State Park, St.
Francois State Park, Onondaga Cave State Park, Johnsons Shut-Ins
State Park, Hawn State Park, Fort Davidson Historic Site, Felix Valle
House State Park, Elephant Rocks State Park, Taum Sauk Mountain State
Park, Missouri Mines Historic Site, and Clearwater Lake Recreational
Area.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.

&&

LAT...LON 3705 9096 3726 9116 3750 9121 3751 9131
      3759 9116 3770 9116 3779 9131 3779 9153
      3820 9153 3821 9079 3800 9059 3813 9004
      3822 9003 3822 8959 3781 8968 3791 8984
      3764 9015 3731 9015 3727 9074 3705 9078

$$

Glass
699 
WGUS83 KLSX 040130
FLSLSX

Flood Statement
National Weather Service St Louis MO
830 PM CDT WED MAY 3 2017

ILC157-MOC055-093-123-179-186-187-221-052145-
/O.CON.KLSX.FA.W.0021.000000T0000Z-170505T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Iron MO-Ste. Genevieve MO-Reynolds MO-
Madison MO-Washington MO-St. Francois MO-
830 PM CDT WED MAY 3 2017

...A FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FRIDAY FOR
RANDOLPH COUNTY IN SOUTHWESTERN ILLINOIS...CRAWFORD COUNTY IN EAST
CENTRAL MISSOURI...IRON...STE. GENEVIEVE...REYNOLDS AND MADISON
COUNTIES IN SOUTHEASTERN MISSOURI...WASHINGTON COUNTY IN EAST CENTRAL
MISSOURI AND ST. FRANCOIS COUNTIES IN SOUTHEASTERN MISSOURI...

At 825 PM CDT, Doppler radar indicated a break in the rain over the 
warned area. However, rain will move back into the warned area by 10 
pm. Radar and rain gages indicate that some locations have received 
between half an inch and 1.5 inches of rain since early this 
morning. Once the rain moves back in it is expected to produce large 
amounts of standing water as well as renewed areal flooding of small 
creeks, streams, and roads.

Some locations that will experience flooding include...
Farmington, Chester, Sullivan, Bonne Terre, Desloge, Ste. Genevieve,
Sparta, Fredericktown, Red Bud, Cuba, Potosi, Steelville, Bourbon,
Bismarck, Ironton, Leadwood, Anthonies Mill, Bremen, Park Hills and
Reynolds.

This also includes  Washington State Park, St. Joe State Park, St.
Francois State Park, Onondaga Cave State Park, Johnsons Shut-Ins
State Park, Hawn State Park, Fort Davidson Historic Site, Felix Valle
House State Park, Elephant Rocks State Park, Taum Sauk Mountain State
Park, Missouri Mines Historic Site, and Clearwater Lake Recreational
Area.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.

&&

LAT...LON 3705 9096 3726 9116 3750 9121 3751 9131
      3759 9116 3770 9116 3779 9131 3779 9153
      3820 9153 3821 9079 3800 9059 3813 9004
      3822 9003 3822 8959 3781 8968 3791 8984
      3764 9015 3731 9015 3727 9074 3705 9078

$$

Byrd
072 
WGUS83 KLSX 041427
FLSLSX

Flood Statement
National Weather Service St Louis MO
927 AM CDT THU MAY 4 2017

ILC157-MOC055-093-123-179-186-187-221-052145-
/O.CON.KLSX.FA.W.0021.000000T0000Z-170505T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Iron MO-Ste. Genevieve MO-Reynolds MO-
Madison MO-Washington MO-St. Francois MO-
927 AM CDT THU MAY 4 2017

...A FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FRIDAY FOR
RANDOLPH COUNTY IN SOUTHWESTERN ILLINOIS...CRAWFORD COUNTY IN EAST
CENTRAL MISSOURI...IRON...STE. GENEVIEVE...REYNOLDS AND MADISON
COUNTIES IN SOUTHEASTERN MISSOURI...WASHINGTON COUNTY IN EAST CENTRAL
MISSOURI AND ST. FRANCOIS COUNTIES IN SOUTHEASTERN MISSOURI...

Light to moderate rain will continue today.  The heavy rainfall 
over the past week, including the 1 to 3 inches of 
rain that fell in the past 24 hours, has resulted in the 
flooding of many low lying areas. This is especially true near 
smaller creeks, streams and rivers. Some highways and many roads 
remain impassible due to high water.  Here are few that remain 
closed....

Route K, F, and B in Reynolds County
Route D, C, F, and Highway 143 in Iron County
Route V in Madison County
Highway 67, Highway 32, Route V and Route J in Ste. Genevieve County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3705 9096 3726 9116 3750 9121 3751 9131
      3759 9116 3770 9116 3779 9131 3779 9153
      3820 9153 3821 9079 3800 9059 3813 9004
      3822 9003 3822 8959 3781 8968 3791 8984
      3764 9015 3731 9015 3727 9074 3705 9078

$$

CVKING
668 
WGUS83 KLSX 050148
FLSLSX

Flood Statement
National Weather Service St Louis MO
848 PM CDT THU MAY 4 2017

ILC157-MOC055-093-123-179-186-187-221-052145-
/O.CON.KLSX.FA.W.0021.000000T0000Z-170505T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Iron MO-Ste. Genevieve MO-Reynolds MO-
Madison MO-Washington MO-St. Francois MO-
848 PM CDT THU MAY 4 2017

...A FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FRIDAY FOR
RANDOLPH COUNTY IN SOUTHWESTERN ILLINOIS...CRAWFORD COUNTY IN EAST
CENTRAL MISSOURI...IRON...STE. GENEVIEVE...REYNOLDS AND MADISON
COUNTIES IN SOUTHEASTERN MISSOURI...WASHINGTON COUNTY IN EAST CENTRAL
MISSOURI AND ST. FRANCOIS COUNTIES IN SOUTHEASTERN MISSOURI...

Rain has come to an end across the warned area.  The heavy rainfall 
over the past week, including the 1 to 3 inches of rain that fell in 
the past 24 hours, has resulted in the flooding of many low lying 
areas. This is especially true near smaller creeks, streams and 
rivers. Some highways and many roads remain impassible due to high 
water. Here are few that remain closed....

Routes K, F, and B in Reynolds County
Routes D, C, and F in Iron County
Route V in Madison County 
Highway 61, Highway 32, Routes V, M and J in Ste. Genevieve County

Many other roads remain impassible due to high water.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3705 9096 3726 9116 3750 9121 3751 9131
      3759 9116 3770 9116 3779 9131 3779 9153
      3820 9153 3821 9079 3800 9059 3813 9004
      3822 9003 3822 8959 3781 8968 3791 8984
      3764 9015 3731 9015 3727 9074 3705 9078

$$

Byrd
163 
WGUS83 KLSX 051402
FLSLSX

Flood Statement
National Weather Service St Louis MO
902 AM CDT FRI MAY 5 2017

ILC157-MOC055-093-123-179-186-187-221-051411-
/O.CAN.KLSX.FA.W.0021.000000T0000Z-170505T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Iron MO-Ste. Genevieve MO-Reynolds MO-
Madison MO-Washington MO-St. Francois MO-
902 AM CDT FRI MAY 5 2017

...THE FLOOD WARNING HAS BEEN CANCELLED FOR RANDOLPH COUNTY IN
SOUTHWESTERN ILLINOIS...CRAWFORD COUNTY IN EAST CENTRAL MISSOURI...
IRON...STE. GENEVIEVE...REYNOLDS AND MADISON COUNTIES IN SOUTHEASTERN
MISSOURI...WASHINGTON COUNTY IN EAST CENTRAL MISSOURI AND ST.
FRANCOIS COUNTIES IN SOUTHEASTERN MISSOURI...

Most flood waters have receded, and are no longer expected to pose a 
threat to life or property. Any remaining flooding is primarily 
attributed to major rivers. Please continue to heed any road 
closures and continue to follow the remaining river flood warnings 
through the appropriate products. 

LAT...LON 3705 9096 3726 9116 3750 9121 3751 9131
      3759 9116 3770 9116 3779 9131 3779 9153
      3820 9153 3821 9079 3800 9059 3813 9004
      3822 9003 3822 8959 3781 8968 3791 8984
      3764 9015 3731 9015 3727 9074 3705 9078

$$

TES

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 2, 4:07 AM CDTFlash Flood WatchLSXAudrain, Boone, Callaway, Cole, Crawford, Franklin and 17 more64 hr
May 2, 9:28 AM CDTAreal Flood WarningLSXBoone, Callaway, Cole, Moniteau, Osage3 days
May 2, 10:55 AM CDTAreal Flood WarningLSXGasconade, Lincoln, Montgomery, Warren3 days
May 2, 10:03 AM CDTAreal Flood WarningLSXBond, Fayette, Greene, Jersey, Macoupin, Montgomery72 hr

Nearby

Areal Flood Warnings in Missouri, 2017Areal Flood Warnings in Illinois, 2017Every areal flood warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.