Alert archive / Illinois / Special Weather Statements in 2018
Special Weather Statement, NWS St. Louis, MO
NWS St. Louis, MO issued this special weather statement at Apr 2, 2018, 7:46 PM CDT for Clinton County, Marion County, Illinois. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 2, 2018, 7:46 PM CDT (00:46 UTC)
- Expired
- Apr 2, 2018, 8:30 PM CDT
- In force
- 44 min
- Issued by
- NWS St. Louis, MO
Counties Clinton County, IL, Marion County, IL
The radar
The Evansville,IN radar (KVWX), 131 km from the middle of the area, began a volume at 00:47 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, 0.8 hours before the alert went out and 178 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
- 1 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 549 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 233 m²/s²
- 0-3 km storm-relative helicity
- 495 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS St. Louis, MO wrote its last area forecast discussion before this special weather statement went out at Apr 2, 7:00 PM CDT, 46 minutes earlier.
Area forecast discussion, Apr 2, 7:00 PM CDT, 46 minutes before
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</html>Hazardous weather outlook, Apr 2, 4:07 PM CDT, 3 hours 39 minutes before
Hazardous Weather Outlook National Weather Service Saint Louis MO 407 PM CDT Mon Apr 2 2018 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-031130- Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- 407 PM CDT Mon Apr 2 2018 This hazardous weather outlook is for portions of eastern and central Missouri as well as west central and southwest Illinois. .DAY ONE...Tonight A few strong to severe storms are possible tonight. The main threat will be large hail. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Strong to severe storms are possible on Tuesday. The main threats will be damaging winds, isolated large hail and a few tornadoes. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed tonight. Carney
In the hours before
Special weather statement, Apr 2, 7:46 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service St Louis MO
746 PM CDT MON APR 2 2018
ILZ069-070-074-101-030130-
Marion IL-St. Clair IL-Clinton IL-Washington IL-
746 PM CDT MON APR 2 2018
...SIGNIFICANT WEATHER ADVISORY FOR CLINTON...NORTHERN WASHINGTON...
MARION AND EAST CENTRAL ST. CLAIR COUNTIES UNTIL 830 PM CDT...
At 745 PM CDT, Doppler radar was tracking a strong thunderstorm over
Albers, moving east at 50 mph.
Dime size hail will be possible with this storm.
Locations impacted include...
Centralia, Salem, Breese, New Baden, Carlyle, Trenton, Aviston,
Okawville, Sandoval, Germantown, Albers, Wamac, Central City, Odin,
Beckemeyer, Kinmundy, Patoka, New Memphis, Fairman and Boulder.
This includes the following highways...
Interstate 57 in Illinois between exits 109 and 127.
Interstate 64 in Illinois between exits 27 and 41.
This also includes Carlyle Lake Recreational Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in St Louis.
&&
LAT...LON 3848 8877 3848 8912 3847 8914 3846 8915
3842 8972 3859 8978 3874 8930 3874 8914
3880 8914 3882 8911 3882 8885
TIME...MOT...LOC 0045Z 253DEG 45KT 3854 8959
TESThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 10:37 PM CDT | Special Weather Statement | LSX | Iron, Madison, Saint Francois | 53 min |
| Apr 2, 11:13 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 32 min |
| Apr 2, 11:16 PM CDT | Special Weather Statement | LSX | Crawford | 29 min |
| Apr 2, 11:22 PM CDT | Special Weather Statement | LSX | Saint Charles | 38 min |
| Apr 3, 12:02 AM CDT | Special Weather Statement | LSX | Saint Louis, City of Saint Louis | 43 min |
| Apr 3, 12:38 AM CDT | Special Weather Statement | LSX | City of Saint Louis | 52 min |
| Apr 3, 4:27 AM CDT | Freeze Warning | LSX | Iron, Madison, Reynolds | 30 hr |
| Apr 3, 2:02 PM CDT | Special Weather Statement | LSX | Crawford, Washington | 43 min |
| Apr 3, 2:20 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Washington | 40 min |
| Apr 3, 2:37 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Iron, Washington | 38 min |
| Apr 3, 2:51 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Sainte Genevieve, Saint Francois, Washington | 39 min |
| Apr 3, 3:13 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 47 min |
| Apr 3, 3:14 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Madison, Reynolds, Saint Francois | 46 min |
| Apr 3, 3:26 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 49 min |
| Apr 3, 3:46 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Madison, Reynolds | 49 min |
| Apr 3, 3:58 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Sainte Genevieve, Saint Francois | 25 min |
| Apr 2, 11:55 PM CDT | Special Weather Statement | LSX | Clinton | 50 min |
| Apr 3, 8:23 AM CDT | River Flood Warning | LSX | Fayette | 6 days |
| Apr 3, 10:08 AM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| Apr 3, 10:16 AM CDT | Special Weather Statement | LSX | Fayette | 14 min |
| Apr 3, 3:21 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph, Saint Clair | 39 min |
Nearby
Special Weather Statements in Illinois, 2018Every special weather statement 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.