Alert archive / Missouri / Flash Flood Warnings in 2021
Flash Flood Warning 28, NWS Springfield, MO
NWS Springfield, MO issued this flash flood warning at May 4, 2021, 12:14 AM CDT for Ozark County, Missouri. It was in force for 6 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 4, 2021, 12:14 AM CDT (05:14 UTC)
- Expired
- May 4, 2021, 6:15 AM CDT
- In force
- 6 hr
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Ozark County, MO
The radar
The Springfield radar (KSGF), 100 km from the middle of the area, began a volume at 05:16 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 00:00Z, 5.2 hours before the alert went out and 113 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.
- Mixed-layer CAPE
- 1558 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 972 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.1
The text
As transmitted.
151
WGUS53 KSGF 040514
FFWSGF
MOC153-041115-
/O.NEW.KSGF.FF.W.0028.210504T0514Z-210504T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
1214 AM CDT Tue May 4 2021
The National Weather Service in Springfield has issued a
* Flash Flood Warning for...
Southern Ozark County in southwestern Missouri...
* Until 615 AM CDT Tuesday.
* At 1214 AM CDT, Doppler radar 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.
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...
Gainesville, Theodosia, Pontiac, Sundown, Willhoit, Hardenville,
Isabella and Zanoni.
This includes the following low water crossings...
Highway 181 at Bryant Creek northeast of Sycamore and Route T at
Lick Creek 6 miles south of Gainesville.
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 3661 9277 3672 9240 3673 9223 3650 9224
3650 9277 3659 9277 3660 9277
FLASH FLOOD...RADAR INDICATED
$$
MB2 follow-up statements
768
WGUS73 KSGF 040834
FFSSGF
Flash Flood Statement
National Weather Service Springfield MO
334 AM CDT Tue May 4 2021
MOC153-041115-
/O.CON.KSGF.FF.W.0028.000000T0000Z-210504T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ozark MO-
334 AM CDT Tue May 4 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 AM CDT THIS
MORNING FOR SOUTHERN OZARK COUNTY...
At 334 AM CDT, Doppler radar and automated rain gauges indicated
between 1 and 3 inches of rain have fallen across the area. Flash
flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Gainesville, Theodosia, Pontiac, Sundown, Willhoit, Hardenville,
Isabella and Zanoni.
This includes the following low water crossings...
Highway 181 at Bryant Creek northeast of Sycamore and Route T at
Lick Creek 6 miles south of Gainesville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3661 9277 3672 9240 3673 9223 3650 9224
3650 9277 3659 9277 3660 9277
FLASH FLOOD...RADAR AND GAUGE INDICATED
$$
MB508
WGUS73 KSGF 041111
FFSSGF
Flash Flood Statement
National Weather Service Springfield MO
611 AM CDT Tue May 4 2021
MOC153-041121-
/O.EXP.KSGF.FF.W.0028.000000T0000Z-210504T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ozark MO-
611 AM CDT Tue May 4 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 615 AM CDT THIS MORNING FOR
SOUTHERN OZARK COUNTY...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
LAT...LON 3661 9277 3672 9240 3673 9223 3650 9224
3650 9277 3659 9277 3660 9277
$$
MBThe office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 12:27 AM CDT | Special Weather Statement | SGF | Ozark | 33 min |
| May 4, 1:02 AM CDT | Special Weather Statement | SGF | Howell | 28 min |
| May 4, 1:19 AM CDT | Severe Thunderstorm Warning | SGF | Howell, Oregon, Shannon | 41 min |
| May 4, 2:43 AM CDT | Areal Flood Warning | SGF | Howell, Oregon, Ozark | 11 hr |
| May 4, 8:27 AM CDT | Areal Flood Advisory | SGF | Barry, Lawrence, McDonald, Newton, Stone | 10 hr |
| May 4, 1:48 PM CDT | Areal Flood Advisory | SGF | Howell, Oregon, Ozark | 4 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.