Alert archive / Missouri / Flash Flood Warnings in 2021

Flash Flood Warning 41, NWS Springfield, MO

May 27, 2021Barry County, Missouri

NWS Springfield, MO issued this flash flood warning at May 27, 2021, 4:14 PM CDT for Barry County, Missouri. It was in force for 6 hr. 2 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
May 27, 2021, 4:14 PM CDT (21:14 UTC)
Expired
May 27, 2021, 10:15 PM CDT
In force
6 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

County Barry County, MO

The radar

The Springfield radar (KSGF), 75 km from the middle of the area, began a volume at 21:12 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.

What was reported inside it

TimeReportWhereRemark
May 27, 8:30 PM CDTFLASH FLOOD5 Wnw Eagle Rock, MOSOME FLOODING OCCURRED AT ROARING RIVER STATE PARK WITH TWO DIFFERENT CRESTS THIS EVENING. THE LATE EVENING CREST DID OFFICIALLY REACH FLOOD STAGE. SOME CAMPSITES WERE EVACUATED EARLIER THIS EVENING.
May 27, 8:51 PM CDTFLASH FLOOD4 Ssw Mcdowell, MOSTATE HIGHWAY U IS CLOSED DUE TO FLOODING AT FLAT CREEK.

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, 9.2 hours before the alert went out and 25 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 2021-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 295 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 2021-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
295 J/kg
Mixed-layer CIN
-229 J/kg
Mixed-layer LCL
964 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
160 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

757 
WGUS53 KSGF 272114
FFWSGF
MOC009-280315-
/O.NEW.KSGF.FF.W.0041.210527T2114Z-210528T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
414 PM CDT Thu May 27 2021

The National Weather Service in Springfield has issued a

* Flash Flood Warning for...
  Barry County in southwestern Missouri...

* Until 1015 PM CDT Thursday.

* At 414 PM CDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  1 and 2 inches of rain have fallen. Flash flooding is ongoing or 
  expected to begin shortly. Expect fast water rises along Roaring 
  River.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  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...
  Cassville, Seligman, Exeter, Washburn, Shell Knob, Butterfield, 
  Golden and Emerald Beach.

This includes the following low water crossings...
  Highway 39 at Flat Creek near Jenkins, Route U, 8 miles east of 
  Purdy, Route Y at Flat Creek just northeast of Cassville, Highway 
  39 at Flat Creek south of Jenkins and Route U, 1 Mile east of 
  Butterfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Flooding is occurring or is imminent. It is important to know where 
you are relative to streams, rivers, or creeks which can become 
killers in heavy rains. Campers and hikers should avoid streams or 
creeks.

&&

LAT...LON 3675 9407 3680 9392 3681 9358 3650 9359
      3650 9408

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$
1 follow-up statement
094 
WGUS73 KSGF 280235
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
935 PM CDT Thu May 27 2021

MOC009-280315-
/O.CON.KSGF.FF.W.0041.000000T0000Z-210528T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Barry MO-
935 PM CDT Thu May 27 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT THIS 
EVENING FOR BARRY COUNTY...

At 935 PM CDT, Heavy rainfall has caused flash flooding to occur 
along Flat Creek. Flat Creek has quickly reached moderate flood 
stage.  Between 2 and 3 inches of rain have fallen. Flash flooding 
is already occurring.

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Gauges reported.

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...
  Cassville, Seligman, Exeter, Washburn, Shell Knob, Butterfield, 
  Golden and Emerald Beach.

This includes the following low water crossings...
  Highway 39 at Flat Creek near Jenkins, Route U, 8 miles east of 
  Purdy, Route Y at Flat Creek just northeast of Cassville, Highway 
  39 at Flat Creek south of Jenkins and Route U, 1 Mile east of 
  Butterfield.

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 3675 9407 3680 9392 3681 9358 3650 9359
      3650 9408

FLASH FLOOD...GAUGE INDICATED

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 8:12 PM CDTRiver Flood WarningSGFVernon24 hr
May 27, 3:27 AM CDTSpecial Weather StatementSGFVernon48 min
May 27, 5:11 AM CDTSpecial Weather StatementSGFBenton34 min
May 27, 9:45 AM CDTRiver Flood WarningSGFCedar11 hr
May 27, 9:45 AM CDTRiver Flood WarningSGFVernon11 hr
May 27, 10:32 AM CDTFlash Flood WarningSGFBenton, Morgan4 hr
May 27, 10:53 AM CDTFlash Flood WatchSGFBarry, Barton, Benton, Camden, Cedar, Christian and 19 more8 hr
May 27, 11:11 AM CDTFlash Flood WarningSGFJasper, Newton8 hr
May 27, 11:15 AM CDTSevere Thunderstorm WarningSGFCedar, Hickory, Polk, St. Clair45 min
May 27, 11:37 AM CDTSevere Thunderstorm WarningSGFJasper, Newton38 min
May 27, 11:45 AM CDTSevere Thunderstorm WarningSGFCedar, Dade, Dallas, Polk60 min
May 27, 12:07 PM CDTSevere Thunderstorm WarningSGFGreene, Webster53 min
May 27, 12:24 PM CDTSevere Thunderstorm WarningSGFLaclede, Pulaski66 min
May 27, 12:45 PM CDTFlash Flood WarningSGFBarry, Jasper, Lawrence, Newton6 hr
May 27, 12:52 PM CDTSevere Thunderstorm WarningSGFWebster, Wright38 min
May 27, 1:07 PM CDTFlash Flood WarningSGFCamden, Christian, Dallas, Greene, Laclede, Polk and 1 more5 hr
May 27, 1:07 PM CDTSevere Thunderstorm WarningSGFMaries, Phelps41 min
May 27, 1:19 PM CDTSevere Thunderstorm WarningSGFLaclede, Phelps, Pulaski, Texas, Wright56 min
May 27, 1:29 PM CDTFlash Flood Warning Considerable damage threatSGFBarry, Lawrence, Newton6 hr
May 27, 1:31 PM CDTSevere Thunderstorm WarningSGFJasper, McDonald, Newton59 min
May 27, 1:35 PM CDTSpecial Weather StatementSGFChristian, Stone55 min
May 27, 1:51 PM CDTSevere Thunderstorm WarningSGFChristian, Douglas, Webster, Wright54 min
May 27, 1:54 PM CDTSpecial Weather StatementSGFDent, Texas51 min
May 27, 2:11 PM CDTFlash Flood WarningSGFBarry, Christian, Stone6 hr
May 27, 2:25 PM CDTSevere Thunderstorm WarningSGFMcDonald, Newton47 min
May 27, 2:37 PM CDTFlash Flood WarningSGFDouglas6 hr
May 27, 2:37 PM CDTSpecial Weather StatementSGFHowell53 min
May 27, 2:55 PM CDTSevere Thunderstorm WarningSGFBarry50 min
May 27, 3:02 PM CDTSevere Thunderstorm WarningSGFHowell43 min
May 27, 3:28 PM CDTSpecial Weather StatementSGFOregon, Shannon62 min
May 27, 3:36 PM CDTSpecial Weather StatementSGFChristian39 min
May 27, 3:42 PM CDTAreal Flood AdvisorySGFBarry, McDonald6 hr
May 27, 3:49 PM CDTSevere Thunderstorm WarningSGFChristian, Douglas, Taney41 min
May 27, 4:09 PM CDTSevere Thunderstorm WarningSGFOzark, Taney36 min
May 27, 4:31 PM CDTFlash Flood WarningSGFOzark, Stone, Taney6 hr
May 27, 5:23 PM CDTSevere Thunderstorm WarningSGFMcDonald47 min
May 27, 5:52 PM CDTFlash Flood WarningSGFMcDonald4 hr
May 27, 6:25 PM CDTAreal Flood WarningSGFChristian, Dallas, Greene, Hickory, Laclede, Polk and 2 more15 hr
May 27, 6:41 PM CDTAreal Flood WarningSGFBarry, Jasper, Lawrence, Newton22 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.