Alert archive / Missouri / Flash Flood Warnings in 2017

Flash Flood Warning 39, NWS Springfield, MO

May 1, 2017Taney County, Missouri

NWS Springfield, MO issued this flash flood warning at May 1, 2017, 11:55 AM CDT for Taney County, Missouri. It was in force for 24 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: May 1, 2017, 11:55 AM CDT (16:55 UTC)
Expired: May 2, 2017, 12:00 PM CDT
In force: 24 hr
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Flood severity: None

County Taney County, MO

The radar

The Springfield radar (KSGF), 72 km from the middle of the area, began a volume at 16:55 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, 4.9 hours before the alert went out and 66 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 566 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 157 m²/s²
0-3 km storm-relative helicity: 164 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

536 
WGUS53 KSGF 011655
FFWSGF
MOC213-021700-
/O.NEW.KSGF.FF.W.0039.170501T1655Z-170502T1700Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
1155 AM CDT MON MAY 1 2017

The National Weather Service in Springfield has issued a

* Flash Flood Warning for...
  A Dam Floodgate Release in...
  Southwestern Taney County in southwestern Missouri...

* Until noon CDT Tuesday

* At 1153 AM CDT, Corps of Engineers reported the floodgates on the 
  Table Rock Dam were releasing 63,900 cubic feet per second causing 
  flash flooding downstream on Lake Taneycomo and the upper Bull 
  Shoals Lake.

* Locations impacted include...
  Branson...                        Table Rock State Park...
  Hollister...                      Forsyth...
  Merriam Woods...                  Kissee Mills...
  Rockaway Beach...                 Table Rock...
  Ozark Beach...                    Powersite...
  Edgewater Beach...                

Flood waters are moving down the White River, or Lake Taneycomo and 
Bull Shoals Lake. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3657 9331 3664 9331 3674 9314 3673 9309
      3670 9311 3671 9304 3663 9301 3660 9304
      3650 9299 3650 9307 3658 9313 3665 9310
      3663 9314 3665 9317 3658 9326

$$

Cramer

1 follow-up statement

409 
WGUS73 KSGF 021658
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
1158 AM CDT TUE MAY 2 2017

MOC213-021700-
/O.EXP.KSGF.FF.W.0039.000000T0000Z-170502T1700Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TANEY MO-
1158 AM CDT TUE MAY 2 2017

...THE FLASH FLOOD WARNING FOR A DAM FLOODGATE RELEASE WILL EXPIRE 
AT NOON CDT FOR SOUTHWESTERN TANEY COUNTY...

The threat for rapid rises in water levels immediately below Table 
Rock Dam has diminished. However, flooding will continue below the 
dam as releases remain well above normal. Areal Flood Warnings 
remain in effect for all of southern Missouri. Please continue to 
heed road closures.

LAT...LON 3657 9331 3664 9331 3674 9314 3673 9309
      3670 9311 3671 9304 3663 9301 3660 9304
      3650 9299 3650 9307 3658 9313 3665 9310
      3663 9314 3665 9317 3658 9326

$$

Schaumann

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 9:14 PM CDT	Areal Flood Warning	SGF	Christian, Douglas, Greene, Ozark, Stone, Taney and 1 more	48 hr
Apr 30, 9:18 PM CDT	Areal Flood Warning	SGF	Dallas, Dent, Laclede, Phelps, Pulaski, Texas and 1 more	48 hr
Apr 30, 9:20 PM CDT	Areal Flood Warning	SGF	Howell, Oregon, Shannon	48 hr

Nearby

Flash Flood Warnings in Missouri, 2017 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.