Alert archive / Missouri / Flash Flood Warnings in 2021

Flash Flood Warning 46, NWS Springfield, MO

June 11, 2021Christian County, Douglas County, Missouri

NWS Springfield, MO issued this flash flood warning at Jun 11, 2021, 8:13 PM CDT for Christian County, Douglas County, 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
Jun 11, 2021, 8:13 PM CDT (01:13 UTC)
Expired
Jun 12, 2021, 2:15 AM CDT
In force
6 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Christian County, MO, Douglas County, MO

The radar

The Springfield radar (KSGF), 40 km from the middle of the area, began a volume at 01:12 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 00:00Z, 1.2 hours before the alert went out and 69 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 00:00Z on 2021-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2670 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 00:00Z on 2021-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -54 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
2670 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1310 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-54 m²/s²
0-3 km storm-relative helicity
-83 m²/s²
Significant tornado parameter
-1.0
Supercell composite
-10.3

Open this sounding in Storm Lab

The text

As transmitted.

996 
WGUS53 KSGF 120113
FFWSGF
MOC043-067-120715-
/O.NEW.KSGF.FF.W.0046.210612T0113Z-210612T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
813 PM CDT Fri Jun 11 2021

The National Weather Service in Springfield has issued a

* Flash Flood Warning for...
  Northeastern Christian County in southwestern Missouri...
  Northwestern Douglas County in southwestern Missouri...

* Until 215 AM CDT Saturday.

* At 813 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 0.5 and 1 inch of rain 
  has fallen. Additional rainfall amounts of 0.5 to 1.5 inches are 
  possible in the warned area. 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...
  Nixa, Ozark, Sparta, Bruner, Elkhead, Keltner, Oldfield and 
  Dogwood.

This includes the following low water crossings...
  Riverdale Road at Finley Creek and Route U at Pedelo Creek 
  northeast of Sparta.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3694 9309 3701 9316 3699 9331 3701 9331
      3709 9317 3709 9290 3707 9290 3707 9269
      3694 9275

FLASH FLOOD...RADAR INDICATED

$$

JT
1 follow-up statement
094 
WGUS73 KSGF 120722
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
222 AM CDT Sat Jun 12 2021

MOC043-067-120732-
/O.EXP.KSGF.FF.W.0046.000000T0000Z-210612T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Christian MO-Douglas MO-
222 AM CDT Sat Jun 12 2021

...FLASH FLOOD WARNING HAS EXPIRED FOR NORTHEASTERN CHRISTIAN AND 
NORTHWESTERN DOUGLAS COUNTIES...

Flood waters have receded. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 3694 9309 3701 9316 3699 9331 3701 9331
      3709 9317 3709 9290 3707 9290 3707 9269
      3694 9275

$$

EW

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 7:04 PM CDTSevere Thunderstorm WarningSGFGreene, Webster56 min
Jun 11, 7:41 PM CDTSevere Thunderstorm WarningSGFChristian, Douglas, Stone49 min
Jun 11, 7:43 PM CDTSevere Thunderstorm WarningSGFJasper62 min
Jun 11, 7:55 PM CDTFlash Flood WarningSGFGreene, Webster6 hr
Jun 11, 8:26 PM CDTSevere Thunderstorm WarningSGFNewton35 min
Jun 11, 8:33 PM CDTSevere Thunderstorm WarningSGFDouglas, Ozark, Taney42 min
Jun 11, 8:39 PM CDTFlash Flood WarningSGFDouglas, Ozark, Taney6 hr
Jun 11, 8:53 PM CDTSevere Thunderstorm WarningSGFOzark37 min
Jun 11, 11:10 PM CDTHigh Wind WarningSGFChristian, Stone, Taney79 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.