Alert archive / Missouri / Flash Flood Warnings in 2017

Flash Flood Warning 8, NWS Springfield, MO

April 21, 20177 counties in Missouri

NWS Springfield, MO issued this flash flood warning at Apr 21, 2017, 6:19 PM CDT for 7 counties in Missouri. It was in force for 12 hr. 5 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
Apr 21, 2017, 6:19 PM CDT (23:19 UTC)
Expired
Apr 22, 2017, 6:15 AM CDT
In force
12 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Douglas County, MO, Howell County, MO, Oregon County, MO, Ozark County, MO, Shannon County, MO, Texas County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 136 km from the middle of the area, began a volume at 23:20 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
Apr 21, 6:27 PM CDTFLOOD7 Ne Winona, MOROAD CLOSED DUE TO FLOODING ROUTE H IN BOTH DIRECTIONS.
Apr 21, 6:27 PM CDTFLOOD7 Ne Winona, MOROUTE NN IS CLOSED AT ROCKY CREEK DUE TO FLOODING.
Apr 21, 8:00 PM CDTFLOOD8 Sse Mountain Grove, MOROUTE EE IS CLOSED ABOUT 1 MILE EAST OF ROUTE AD DUE TO FLOODING ALONG THE NORTH FORK RIVER.
Apr 21, 9:35 PM CDTFLOOD1 Ne Sycamore, MOHIGH WATER OVER STATE HIGHWAY 181 NEAR BRYANT CREEK. ROAD WAS CLOSED.
Apr 22, 3:00 AM CDTFLASH FLOODPine Crest, MOEXCESSIVE RAINFALL LED TO FLASH FLOODING ALONG THE UPPER JACKS FORK RIVER ACROSS MUCH OF SOUTHEAST TEXAS COUNTY AND WESTERN SHANNON COUNTY.

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, 11.3 hours before the alert went out and 169 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 2017-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -171 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
637 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
-171 m²/s²
0-3 km storm-relative helicity
-150 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

694 
WGUS53 KSGF 212319
FFWSGF
MOC067-091-149-153-203-215-229-221115-
/O.NEW.KSGF.FF.W.0008.170421T2319Z-170422T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
619 PM CDT FRI APR 21 2017

The National Weather Service in Springfield has issued a

* Flash Flood Warning for...
  Ozark County in southwestern Missouri...
  Shannon County in south central Missouri...
  Douglas County in southwestern Missouri...
  Southern Wright County in southwestern Missouri...
  Howell County in south central Missouri...
  Southern Texas County in south central Missouri...
  Oregon County in south central Missouri...

* Until 615 AM CDT Saturday

* At 616 PM CDT, Doppler radar indicated heavy rain across the warned
  area. Up to three inches of rain has already fallen. Flash 
  flooding is already occurring...with another several hours of rain 
  expected through the evening.  This rain will create an increase 
  in flash flooding across much of south central Missouri this 
  evening and overnight. 

* Creeks, streams, and low water crossings will be especially
  susceptible to the dangers of flash flooding.
  Locations in the warning include...
  West Plains...                    Current River State Park...
  Grand Gulf State Park...          Mountain Grove...
  Ava...                            Mountain View...
  Thayer...                         Willow Springs...
  Cabool...                         Winona...
  Mansfield...                      Alton...
  Gainesville...                    Birch Tree...
  Norwood...                        Eminence...
  Pomona...                         Summersville...
  Bakersfield...                    Theodosia...

This warning includes but is not limited to the following low water
crossings...
Route FF at Hunter Creek east of Ava...
Route H, 3 miles east of Winona...
Route FF at Turkey Creek east of Ava...
Highway 142 at The Spring River west of Lanton...
and Highway 142 at The Bennetts River west of Moody.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

&&

LAT...LON 3680 9277 3681 9291 3707 9290 3707 9269
      3718 9268 3740 9117 3726 9116 3714 9102
      3709 9102 3708 9122 3683 9123 3682 9111
      3650 9113 3650 9277

$$

Cramer
2 follow-up statements
807 
WGUS73 KSGF 220156
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
856 PM CDT FRI APR 21 2017

MOC067-091-149-153-203-215-229-221115-
/O.CON.KSGF.FF.W.0008.000000T0000Z-170422T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ozark MO-Shannon MO-Douglas MO-Wright MO-Howell MO-Texas MO-
Oregon MO-
856 PM CDT FRI APR 21 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 AM CDT
SATURDAY FOR OZARK...SHANNON...DOUGLAS...SOUTHERN WRIGHT...HOWELL...
SOUTHERN TEXAS AND OREGON COUNTIES...

At 854 PM CDT, Doppler radar and automated rain gauges indicated that
heavy rain was falling over the area. Up to three inches of rain has
already fallen. Flash flooding is already occurring.

This warning includes but is not limited to the following low water
crossings...
Route FF at Hunter Creek east of Ava...
Route H, 3 miles east of Winona...
Route FF at Turkey Creek east of Ava...
Highway 142 at The Spring River west of Lanton...
and Highway 142 at The Bennetts River west of Moody.

Additional rainfall amounts of one to two inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

&&

LAT...LON 3680 9277 3681 9291 3707 9290 3707 9269
      3718 9268 3740 9117 3726 9116 3714 9102
      3709 9102 3708 9122 3683 9123 3682 9111
      3650 9113 3650 9277

$$

Hatch
636 
WGUS73 KSGF 221107
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
607 AM CDT SAT APR 22 2017

MOC067-091-149-153-203-215-229-221116-
/O.EXP.KSGF.FF.W.0008.000000T0000Z-170422T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ozark MO-Shannon MO-Douglas MO-Wright MO-Howell MO-Texas MO-
Oregon MO-
607 AM CDT SAT APR 22 2017

...THE FLASH FLOOD WARNING FOR OZARK...SHANNON...DOUGLAS...SOUTHERN
WRIGHT...HOWELL...SOUTHERN TEXAS AND OREGON COUNTIES WILL EXPIRE AT
615 AM CDT...

The Flash Flood Warning has been replaced by a Flood Warning for 
Small Streams which is in effect until 745 PM this evening.

LAT...LON 3680 9277 3681 9291 3707 9290 3707 9269
      3718 9268 3740 9117 3726 9116 3714 9102
      3709 9102 3708 9122 3683 9123 3682 9111
      3650 9113 3650 9277

$$

Schaumann

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 8:36 PM CDTRiver Flood WarningSGFVernon5 days
Apr 21, 5:45 AM CDTAreal Flood WarningSGFBarry, McDonald, Newton8 hr
Apr 21, 8:25 AM CDTAreal Flood WarningSGFHowell, Oregon, Shannon12 hr
Apr 21, 8:32 AM CDTRiver Flood WarningSGFMcDonald65 hr
Apr 21, 8:56 AM CDTRiver Flood WarningSGFCedar3 days
Apr 21, 8:56 AM CDTRiver Flood WarningSGFBates, Vernon6 days
Apr 21, 8:56 AM CDTRiver Flood WarningSGFVernon5 days
Apr 21, 9:09 AM CDTRiver Flood WarningSGFPulaski41 hr
Apr 21, 9:09 AM CDTRiver Flood WarningSGFPulaski66 hr
Apr 21, 9:09 AM CDTRiver Flood WarningSGFPhelps3 days
Apr 21, 9:13 AM CDTFlash Flood WarningSGFJasper12 hr
Apr 21, 9:16 AM CDTFlash Flood WarningSGFBarry, McDonald, Newton12 hr
Apr 21, 10:16 AM CDTRiver Flood WarningSGFStone62 hr
Apr 21, 10:17 AM CDTAreal Flood WarningSGFBarton12 hr
Apr 21, 10:40 AM CDTFlash Flood WarningSGFLawrence12 hr
Apr 21, 11:00 AM CDTFlash Flood WarningSGFChristian, Greene, Stone, Taney12 hr
Apr 21, 11:53 AM CDTAreal Flood WarningSGFCedar, Dade, Polk, Vernon12 hr
Apr 21, 1:07 PM CDTAreal Flood WarningSGFDouglas, Ozark12 hr
Apr 21, 1:54 PM CDTAreal Flood WarningSGFDallas, Laclede, Shannon, Texas, Webster, Wright12 hr
Apr 21, 2:28 PM CDTRiver Flood WarningSGFJasper55 hr
Apr 21, 2:28 PM CDTRiver Flood WarningSGFJasper3 days

Nearby

Flash Flood Warnings in Missouri, 2017Every flash flood warning in 2017

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.