Alert archive / Missouri / Flash Flood Warnings in 2021

Flash Flood Warning 65, NWS Springfield, MO

July 1, 2021Laclede County, Pulaski County, Missouri

NWS Springfield, MO issued this flash flood warning at Jul 1, 2021, 10:28 AM CDT for Laclede County, Pulaski County, Missouri. It was in force for 3 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, 10:28 AM CDT (15:28 UTC)
Expired
Jul 1, 2021, 1:36 PM CDT
In force
3 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Laclede County, MO, Pulaski County, MO

The radar

The Springfield radar (KSGF), 102 km from the middle of the area, began a volume at 15:32 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, 3.5 hours before the alert went out and 153 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.

508 
WGUS53 KSGF 011528
FFWSGF
MOC105-169-011930-
/O.NEW.KSGF.FF.W.0065.210701T1528Z-210701T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
1028 AM CDT Thu Jul 1 2021

The National Weather Service in Springfield has issued a

* Flash Flood Warning for...
  West Central Pulaski County in central Missouri...
  Northeastern Laclede County in southwestern Missouri...

* Until 230 PM CDT.

* At 1028 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. Additional rainfall amounts up to 1 inch 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...
  Stoutland and Ozark Springs.

This includes the following highways...
	Interstate 44 between mile markers 136 and 138...and
	between mile markers 139 and 149.

This includes the following low water crossings...
  Route FF at Bear Creek east of Stoutland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3782 9251 3782 9245 3783 9245 3784 9239
      3784 9229 3769 9236 3766 9246 3771 9257
      3776 9256 3780 9255 3780 9254 3781 9253
      3781 9251

FLASH FLOOD...RADAR INDICATED

$$

MMT
1 follow-up statement
612 
WGUS73 KSGF 011836
FFSSGF

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

MOC105-169-011846-
/O.CAN.KSGF.FF.W.0065.000000T0000Z-210701T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Laclede MO-Pulaski MO-
136 PM CDT Thu Jul 1 2021

...FLASH FLOOD WARNING IS CANCELLED FOR WEST CENTRAL PULASKI AND 
NORTHEASTERN LACLEDE COUNTIES...

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

A Flash Flood Watch remains in effect until 700 PM CDT for Portions 
of central, east central, south central, and southwest Missouri.

LAT...LON 3782 9251 3782 9245 3783 9245 3784 9239
      3784 9229 3769 9236 3766 9246 3771 9257
      3776 9256 3780 9255 3780 9254 3781 9253
      3781 9251

$$

MMT

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, 2:06 PM CDTAreal Flood AdvisorySGFChristian, Douglas, Howell, Ozark, Stone, Taney and 2 more9 hr
Jul 1, 3:11 PM CDTFlash Flood WarningSGFDouglas, Ozark, Taney4 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.