Alert archive / Missouri / Flash Flood Warnings in 2021

Flash Flood Warning 66, NWS Springfield, MO

July 1, 2021Douglas County, Ozark County, Taney County, Missouri

NWS Springfield, MO issued this flash flood warning at Jul 1, 2021, 3:11 PM CDT for Douglas County, Ozark County, Taney County, Missouri. It was in force for 4 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 1, 2021, 3:11 PM CDT (20:11 UTC)
Expired
Jul 1, 2021, 7:15 PM CDT
In force
4 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Douglas County, MO, Ozark County, MO, Taney County, MO

The radar

The Springfield radar (KSGF), 76 km from the middle of the area, began a volume at 20:12 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 12:00Z, 8.2 hours before the alert went out and 95 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 2021-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 789 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 2021-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 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
789 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
575 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.7

Open this sounding in Storm Lab

The text

As transmitted.

173 
WGUS53 KSGF 012011
FFWSGF
MOC067-153-213-020015-
/O.NEW.KSGF.FF.W.0066.210701T2011Z-210702T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
311 PM CDT Thu Jul 1 2021

The National Weather Service in Springfield has issued a

* Flash Flood Warning for...
  Southern Douglas County in southwestern Missouri...
  Northern Ozark County in southwestern Missouri...
  Northeastern Taney County in southwestern Missouri...

* Until 715 PM CDT.

* At 311 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 already occurring.

  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...
  Ava, Taneyville, Kissee Mills, Wasola, Noble, Squires, Thornfield 
  and Willhoit.

This includes the following low water crossings...
  Highway 181 at Bryant Creek northeast of Sycamore, Highway 95 at 
  Bryant Creek just east of Rockbridge, Highway 76 at Beaver Creek 
  southwest of Bradleyville, Route W at Caney Creek just east of 
  Brownbranch and Route FF at Turkey Creek east of Ava.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3681 9291 3689 9291 3695 9283 3694 9233
      3695 9216 3664 9215 3660 9301 3674 9311
      3681 9301

FLASH FLOOD...RADAR INDICATED

$$

MMT
1 follow-up statement
481 
WGUS73 KSGF 020012
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
712 PM CDT Thu Jul 1 2021

MOC067-153-213-020022-
/O.EXP.KSGF.FF.W.0066.000000T0000Z-210702T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Douglas MO-Ozark MO-Taney MO-
712 PM CDT Thu Jul 1 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 715 PM CDT THIS EVENING FOR 
SOUTHERN DOUGLAS, NORTHERN OZARK AND NORTHEASTERN TANEY COUNTIES...

The heavy rain has ended. Flash flooding is no longer expected to 
pose a threat. Please continue to heed remaining road closures.  An 
areal flood advisory remains in effect for the same area until 
midnight for any residual localized flooding.

LAT...LON 3681 9291 3689 9291 3695 9283 3694 9233
      3695 9216 3664 9215 3660 9301 3674 9311
      3681 9301

$$

Lindenberg

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 8:07 PM CDTAreal Flood WarningSGFChristian, Douglas, Webster, Wright6 hr
Jul 1, 5:01 AM CDTFlash Flood WarningSGFBarry, Lawrence, Newton6 hr
Jul 1, 10:28 AM CDTFlash Flood WarningSGFLaclede, Pulaski3 hr
Jul 1, 2:06 PM CDTAreal Flood AdvisorySGFChristian, Douglas, Howell, Ozark, Stone, Taney and 2 more9 hr

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.