Alert archive / Missouri / Flash Flood Warnings in 2018

Flash Flood Warning 41, NWS Springfield, MO

September 7, 20184 counties in Missouri

NWS Springfield, MO issued this flash flood warning at Sep 7, 2018, 6:08 PM CDT for 4 counties in Missouri. It was in force for 4 hr. 3 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
Sep 7, 2018, 6:08 PM CDT (23:08 UTC)
Expired
Sep 7, 2018, 10:15 PM CDT
In force
4 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Maries County, MO, Miller County, MO, Phelps County, MO, Pulaski County, MO

The radar

The St Louis radar (KLSX), 137 km from the middle of the area, began a volume at 23:10 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
Sep 7, 8:00 PM CDTFLASH FLOOD2 Nne Dixon, MOREPORT OF FLOODING OVER THE ROADWAY AT COUNTY ROAD 624 AND THE MARIES RIVER, NORTH OF DIXON, MO.
Sep 7, 9:27 PM CDTFLASH FLOOD10 Nnw St. James, MOTHE BOURBEUSE RIVER IS FLOODING A SECTION OF HIGHWAY B IN EXTREME NORTHERN PHELPS COUNTY.
Sep 7, 10:05 PM CDTFLASH FLOOD9 Nnw Rosati, MODELAYED REPORT OF THE FLOODING OF A SECTION OF HIGHWAY B IN EXTREME NORTHERN PHELPS COUNTY AT THE BOURBEUSE RIVER CROSSING.

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, 11.1 hours before the alert went out and 209 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 2018-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 619 joules per kilogram.LCLEL10008507005003002001001 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 2018-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939Sfc1 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
619 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
484 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

764 
WGUS53 KSGF 072308
FFWSGF
MOC125-131-161-169-080315-
/O.NEW.KSGF.FF.W.0041.180907T2308Z-180908T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
608 PM CDT FRI SEP 7 2018

The National Weather Service in Springfield has issued a

* Flash Flood Warning for...
  Maries County in central Missouri...
  Miller County in central Missouri...
  Northeastern Pulaski County in central Missouri...
  Northern Phelps County in east central Missouri...

* Until 1015 PM CDT.

* At 607 PM CDT, Doppler radar indicated heavy rain across the warned
  area. Up to two inches of rain have already fallen. Flash flooding
  is expected to begin shortly.

* Creeks, streams, and low water crossings will be especially
  susceptible to the dangers of flash flooding.
  Locations in the warning include...
  Rolla...                          Lake of The Ozarks State Park...
  Eldon...                          Osage Beach...
  St. James...                      Lake Ozark...
  Dixon...                          Belle...
  Iberia...                         Doolittle...
  Vienna...                         Newburg...
  St. Elizabeth...                  Saint Elizabeth...
  Tuscumbia...                      Eugene...
  Olean...                          Bagnell...
  Brumley...                        Etterville...

This warning includes but is not limited to the following low water
crossings...
Route N at The Maries River east of Brinktown...
Route O at Jones Creek just south of Dixon...
Route HH in Tuscumbia...
Route Y northwest of Rolla...
and Route K at Atwell Creek 5 miles southeast of Iberia.

Additional rainfall amounts of one to two inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3843 9241 3834 9240 3832 9224 3834 9220
      3829 9219 3829 9165 3816 9164 3815 9153
      3783 9153 3804 9253 3817 9263 3843 9260

$$

Terry
1 follow-up statement
547 
WGUS73 KSGF 080149
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
849 PM CDT FRI SEP 7 2018

MOC125-131-161-169-080315-
/O.CON.KSGF.FF.W.0041.000000T0000Z-180908T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Maries MO-Miller MO-Pulaski MO-Phelps MO-
849 PM CDT FRI SEP 7 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR
MARIES...MILLER...NORTHEASTERN PULASKI AND NORTHERN PHELPS
COUNTIES...

At 847 PM CDT, Doppler radar indicated heavy rain across the warned
area. Up to three inches of rain have already fallen. 

This warning includes but is not limited to the following low water
crossings...
Route N at The Maries River east of Brinktown...
Route O at Jones Creek just south of Dixon...
Route HH in Tuscumbia...
Route Y northwest of Rolla...
and Route K at Atwell Creek 5 miles southeast of Iberia.

Additional rainfall amounts of one to two inches will be possible 
through 10 PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3843 9241 3834 9240 3832 9224 3834 9220
      3829 9219 3829 9165 3816 9164 3815 9153
      3783 9153 3804 9253 3817 9263 3843 9260

$$

Terry

Nearby

Flash Flood Warnings in Missouri, 2018Every flash flood warning in 2018

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.