Alert archive / Missouri / Flash Flood Warnings in 2020
Flash Flood Warning 5, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at May 15, 2020, 12:24 AM CDT for Reynolds 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 15, 2020, 12:24 AM CDT (05:24 UTC)
- Expired
- May 15, 2020, 6:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Reynolds County, MO
The radar
The St Louis radar (KLSX), 178 km from the middle of the area, began a volume at 05:26 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, 5.4 hours before the alert went out and 257 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
- 1078 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1252 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted.
507
WGUS53 KLSX 150524
FFWLSX
MOC179-151130-
/O.NEW.KLSX.FF.W.0005.200515T0524Z-200515T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service St Louis MO
1224 AM CDT Fri May 15 2020
The National Weather Service in St Louis has issued a
* Flash Flood Warning for...
Southeastern Reynolds County in southeastern Missouri...
* Until 630 AM CDT Friday.
* At 1223 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to two inches of rain have
already fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flooding include...
Garwood.
This also includes Clearwater Lake Recreational Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3705 9096 3710 9096 3710 9102 3714 9102
3714 9103 3716 9103 3716 9076 3714 9076
3714 9078 3705 9078
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR
$$
Maples1 follow-up statement
553
WGUS73 KLSX 151126
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
626 AM CDT Fri May 15 2020
MOC179-151136-
/O.EXP.KLSX.FF.W.0005.000000T0000Z-200515T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Reynolds MO-
626 AM CDT Fri May 15 2020
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN REYNOLDS COUNTY WILL
EXPIRE AT 630 AM CDT FRIDAY...
The heavy rain has ended. Flood waters have receded. Flooding is no
longer expected to pose a threat. Please continue to heed any
remaining road closures.
LAT...LON 3705 9096 3710 9096 3710 9102 3714 9102
3714 9103 3716 9103 3716 9076 3714 9076
3714 9078 3705 9078
$$
GKSNearby
Flash Flood Warnings in Missouri, 2020Every flash flood warning in 2020
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.