Alert archive / Illinois / Flash Flood Warnings in 2018
Flash Flood Warning 9, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jun 10, 2018, 6:42 PM CDT for Fayette County, Illinois. 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
- Jun 10, 2018, 6:42 PM CDT (23:42 UTC)
- Expired
- Jun 11, 2018, 12:45 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Fayette County, IL
The radar
The Lincoln radar (KILX), 116 km from the middle of the area, began a volume at 23:44 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
Lincoln, IL (KILX), launched 12:00Z, 11.7 hours before the alert went out and 112 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
- 585 J/kg
- Mixed-layer CIN
- -193 J/kg
- Mixed-layer LCL
- 611 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 362 m²/s²
- 0-3 km storm-relative helicity
- 382 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.2
The text
As transmitted.
219
WGUS53 KLSX 102342
FFWLSX
ILC051-110545-
/O.NEW.KLSX.FF.W.0009.180610T2342Z-180611T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service St Louis MO
642 PM CDT SUN JUN 10 2018
The National Weather Service in St Louis has issued a
* Flash Flood Warning for...
Northeastern Fayette County in south central Illinois...
* Until 1245 AM CDT Monday.
* At 642 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to three inches of rain have
already fallen. Flash flooding is expected to begin shortly.
* Some locations that will experience flooding include...
Wrights Corner.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3911 8881 3911 8903 3921 8903 3922 8884
3922 8881
$$
Tilly1 follow-up statement
007
WGUS73 KLSX 110258
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
958 PM CDT SUN JUN 10 2018
ILC051-110545-
/O.CON.KLSX.FF.W.0009.000000T0000Z-180611T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fayette IL-
958 PM CDT SUN JUN 10 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
NORTHEASTERN FAYETTE COUNTY...
At 954 PM CDT, three to five inches of rain has fallen across the
warned area. Flash flooding is expected to begin soon if not already
underway.
Some locations that will experience flooding include...
Wrights Corner.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3911 8881 3911 8903 3921 8903 3922 8884
3922 8881
$$
TillyThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 1:29 PM CDT | Special Weather Statement | LSX | Montgomery | 46 min |
| Jun 10, 2:09 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 28 min |
| Jun 10, 3:24 PM CDT | Special Weather Statement | LSX | Adams | 36 min |
| Jun 10, 3:36 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 24 min |
| Jun 10, 4:17 PM CDT | Special Weather Statement | LSX | Montgomery | 28 min |
| Jun 10, 4:38 PM CDT | Special Weather Statement | LSX | Fayette | 22 min |
| Jun 10, 5:15 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown | 29 min |
Nearby
Flash Flood Warnings in Illinois, 2018Every flash flood warning in 2018
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.