Alert archive / Illinois / Flash Flood Warnings in 2020
Flash Flood Warning 3, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Mar 27, 2020, 4:11 AM CDT for Fayette County, Illinois. It was in force for 3 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
- Mar 27, 2020, 4:11 AM CDT (09:11 UTC)
- Expired
- Mar 27, 2020, 7:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Fayette County, IL
The radar
The Evansville,IN radar (KVWX), 121 km from the middle of the area, began a volume at 09:11 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 00:00Z, 9.2 hours before the alert went out and 142 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 535 m above ground
- 0-6 km bulk shear
- 92 kt
- 0-1 km storm-relative helicity
- 215 m²/s²
- 0-3 km storm-relative helicity
- 430 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
934
WGUS53 KLSX 270911
FFWLSX
ILC051-271215-
/O.NEW.KLSX.FF.W.0003.200327T0911Z-200327T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service St Louis MO
411 AM CDT Fri Mar 27 2020
The National Weather Service in St Louis has issued a
* Flash Flood Warning for...
Southern Fayette County in south central Illinois...
* Until 715 AM CDT.
* At 411 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...
Vandalia, Brownstown, Farina, Shobonier, La Clede, Pittsburg, St.
Peter, Loogootee, St. James, St. Paul and Hagerstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3883 8870 3882 8925 3897 8925 3900 8881
3891 8881 3891 8870 3884 8869
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR
$$
Glass1 follow-up statement
978
WGUS73 KLSX 271213
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
713 AM CDT Fri Mar 27 2020
ILC051-271223-
/O.EXP.KLSX.FF.W.0003.000000T0000Z-200327T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fayette IL-
713 AM CDT Fri Mar 27 2020
...THE FLASH FLOOD WARNING FOR SOUTHERN FAYETTE COUNTY WILL EXPIRE AT
715 AM CDT...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.
LAT...LON 3883 8870 3882 8925 3897 8925 3900 8881
3891 8881 3891 8870 3884 8869
$$
GKSThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 2:51 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey, Madison | 54 min |
| Mar 27, 3:31 AM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Marion | 59 min |
| Mar 27, 3:44 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Madison, Marion | 44 min |
Nearby
Flash Flood Warnings in Illinois, 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.