Alert archive / Illinois / Flash Flood Warnings in 2015
Flash Flood Warning 57, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 19, 2015, 2:39 AM CDT for Greene County, Macoupin County, Illinois. It was in force for 6 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 19, 2015, 2:39 AM CDT (07:39 UTC)
- Expired
- Jul 19, 2015, 8:45 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Greene County, IL, Macoupin County, IL
The radar
The St Louis radar (KLSX), 96 km from the middle of the area, began a volume at 07:40 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 19, 7:00 AM CDT | FLASH FLOOD | Hillview, IL | LEVEE BREACH IN HILLVIEW...FLASH FLOODING REPORTED IN THE TOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 7.7 hours before the alert went out and 153 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
- 1300 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 1247 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 163 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.0
The text
As transmitted, in the capitals the NWS used until 2016.
361
WGUS53 KLSX 190739
FFWLSX
ILC061-117-191345-
/O.NEW.KLSX.FF.W.0057.150719T0739Z-150719T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
239 AM CDT SUN JUL 19 2015
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN GREENE COUNTY IN SOUTHWESTERN ILLINOIS...
NORTHERN MACOUPIN COUNTY IN SOUTHWESTERN ILLINOIS...
* UNTIL 845 AM CDT SUNDAY
* AT 238 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM 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...
VIRDEN...WHITE HALL...GIRARD...ROODHOUSE...PALMYRA...ATHENSVILLE...
PATTERSON...HILLVIEW...MODESTO...PEARL...SCOTTVILLE...
WALKERSVILLE...BARROW AND BELLTOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 3944 8970 3936 9062 3946 9061 3952 9058
3952 8970
$$
CARNEYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 1:57 AM CDT | Flash Flood Warning | LSX | Greene, Jersey, Macoupin | 6 hr |
| Jul 19, 3:12 AM CDT | Severe Thunderstorm Warning | LSX | Adams | 48 min |
| Jul 19, 3:49 AM CDT | Flash Flood Warning | LSX | Adams, Brown, Pike | 6 hr |
| Jul 19, 4:35 AM CDT | Flash Flood Watch | LSX | Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 1 more | 11 hr |
| Jul 19, 4:53 AM CDT | Flash Flood Warning | LSX | Montgomery | 6 hr |
| Jul 19, 7:59 AM CDT | Flash Flood Warning | LSX | Greene, Jersey, Macoupin | 6 hr |
| Jul 19, 9:47 AM CDT | Flash Flood Warning | LSX | Brown, Pike | 6 hr |
| Jul 19, 10:59 AM CDT | Areal Flood Advisory | LSX | Montgomery | 5 hr |
| Jul 19, 11:23 AM CDT | Areal Flood Advisory | LSX | Pike | 5 hr |
| Jul 19, 12:03 PM CDT | River Flood Warning | LSX | Pike | 25 hr |
| Jul 19, 1:41 PM CDT | Flash Flood Warning | LSX | Greene, Jersey | 5 hr |
| Jul 19, 4:03 PM CDT | Flash Flood Watch | LSX | Adams, Bond, Brown, Calhoun, Greene, Jersey and 6 more | 20 hr |
| Jul 19, 6:23 PM CDT | Areal Flood Warning | LSX | Greene | 24 hr |
Nearby
Flash Flood Warnings in Illinois, 2015Every flash flood warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.