Alert archive / Missouri / Flash Flood Warnings in 2021

Flash Flood Warning 68, NWS Springfield, MO

July 10, 20214 counties in Missouri

NWS Springfield, MO issued this flash flood warning at Jul 10, 2021, 3:56 PM CDT for 4 counties in Missouri. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 10, 2021, 3:56 PM CDT (20:56 UTC)
Expired
Jul 10, 2021, 10:00 PM CDT
In force
6 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Benton County, MO, Camden County, MO, Hickory County, MO, St. Clair County, MO

The radar

The Springfield radar (KSGF), 87 km from the middle of the area, began a volume at 20:58 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 8.9 hours before the alert went out and 132 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 2021-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 917 joules per kilogram.LCLLFCEL10008507005003002001001 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 2021-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.193958Sfc1 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
917 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
703 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.4
Supercell composite
1.8

Open this sounding in Storm Lab

The text

As transmitted.

302 
WGUS53 KSGF 102056
FFWSGF
MOC015-029-085-185-110300-
/O.NEW.KSGF.FF.W.0068.210710T2056Z-210711T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
356 PM CDT Sat Jul 10 2021

The National Weather Service in Springfield has issued a

* Flash Flood Warning for...
  Southern Benton County in central Missouri...
  Southwestern Camden County in central Missouri...
  Hickory County in central Missouri...
  East Central St. Clair County in west central Missouri...

* Until 1000 PM CDT Saturday.

* At 356 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Hermitage, Wheatland, Macks Creek, Preston, Cross Timbers, Climax 
  Springs, Gerster and Fristoe.

This includes the following low water crossings...
  Little Niangua at County Road 200, Little Niangua at County Road 
  66, Macks Creek at Coffey Hollow Road, Turkey Creek at Jackman 
  Avenue and Weaubleau Creek at 350 Road.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3792 9352 3797 9362 3804 9363 3812 9356
      3816 9345 3812 9336 3816 9325 3807 9288
      3801 9283 3793 9282 3790 9297 3790 9318
      3789 9328

FLASH FLOOD...RADAR INDICATED

$$

DC
2 follow-up statements
852 
WGUS73 KSGF 110054
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
754 PM CDT Sat Jul 10 2021

MOC015-029-085-185-110300-
/O.CON.KSGF.FF.W.0068.000000T0000Z-210711T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton MO-Camden MO-Hickory MO-St. Clair MO-
754 PM CDT Sat Jul 10 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS 
EVENING FOR SOUTHERN BENTON, SOUTHWESTERN CAMDEN, HICKORY AND EAST 
CENTRAL ST. CLAIR COUNTIES...

At 754 PM CDT, Doppler radar indicated that the thunderstorms that 
produced heavy rain across the warned area have moved off to the 
south. Between 1 and 3 inches of rain fell with these earlier 
storms. Even though the rain has ended, runoff from the earlier 
heavy rain will continue this evening. Flash flooding is ongoing or 
expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Hermitage, Wheatland, Macks Creek, Preston, Cross Timbers, Climax 
  Springs, Gerster and Fristoe.

This includes the following low water crossings...
  Little Niangua at County Road 200, Little Niangua at County Road 
  66, Macks Creek at Coffey Hollow Road, Turkey Creek at Jackman 
  Avenue and Weaubleau Creek at 350 Road.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3792 9352 3797 9362 3804 9363 3812 9356
      3816 9345 3812 9336 3816 9325 3807 9288
      3801 9283 3793 9282 3790 9297 3790 9318
      3789 9328

FLASH FLOOD...RADAR INDICATED

$$

EW
063 
WGUS73 KSGF 110254
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
954 PM CDT Sat Jul 10 2021

MOC015-029-085-185-110304-
/O.EXP.KSGF.FF.W.0068.000000T0000Z-210711T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton MO-Camden MO-Hickory MO-St. Clair MO-
954 PM CDT Sat Jul 10 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 10 PM CDT THIS EVENING FOR 
SOUTHERN BENTON, SOUTHWESTERN CAMDEN, HICKORY AND EAST CENTRAL ST. 
CLAIR COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 3792 9352 3797 9362 3804 9363 3812 9356
      3816 9345 3812 9336 3816 9325 3807 9288
      3801 9283 3793 9282 3790 9297 3790 9318
      3789 9328

$$

EW

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 7:16 PM CDTSevere Thunderstorm WarningSGFHowell, Texas42 min
Jul 9, 7:29 PM CDTAreal Flood AdvisorySGFDouglas, Howell, Shannon, Texas5 hr
Jul 9, 7:54 PM CDTFlash Flood WarningSGFHowell3 hr
Jul 9, 7:56 PM CDTSpecial Weather StatementSGFHowell49 min
Jul 9, 8:09 PM CDTSpecial Weather StatementSGFHowell51 min
Jul 9, 8:15 PM CDTSevere Thunderstorm WarningSGFHowell28 min
Jul 10, 3:45 AM CDTSpecial Weather StatementSGFOregon30 min
Jul 10, 8:53 AM CDTSpecial Weather StatementSGFVernon52 min
Jul 10, 11:51 AM CDTSpecial Weather StatementSGFWebster39 min
Jul 10, 12:03 PM CDTSevere Thunderstorm WarningSGFWebster, Wright41 min
Jul 10, 12:35 PM CDTSpecial Weather StatementSGFTexas40 min
Jul 10, 1:03 PM CDTSpecial Weather StatementSGFShannon57 min
Jul 10, 1:22 PM CDTSpecial Weather StatementSGFHowell53 min
Jul 10, 3:31 PM CDTSpecial Weather StatementSGFBenton, Camden, Hickory44 min
Jul 10, 4:09 PM CDTRiver Flood WarningSGFSt. Clair6 days
Jul 10, 6:55 PM CDTSpecial Weather StatementSGFJasper50 min

Nearby

Flash Flood Warnings in Missouri, 2021Every flash flood warning in 2021

Sources

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; radar from the NEXRAD Level II archive.