Alert archive / Illinois / Special Weather Statements in 2021
Special Weather Statement, NWS Quad Cities, IA
NWS Quad Cities, IA issued this special weather statement at Oct 24, 2021, 3:17 PM CDT for McDonough County, Illinois. It was in force for 28 min. 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
- Oct 24, 2021, 3:17 PM CDT (20:17 UTC)
- Expired
- Oct 24, 2021, 3:45 PM CDT
- In force
- 28 min
- Issued by
- NWS Quad Cities, IA
- Hail
- 0.25 in
- Wind
- 30
County McDonough County, IL
The radar
The Lincoln radar (KILX), 117 km from the middle of the area, began a volume at 20:19 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 |
|---|---|---|---|
| Oct 24, 3:25 PM CDT | HAIL 0.88 | 2 Sse Macomb, IL | A LOT OF NICKEL HAIL MIXED WITH PEA SIZED HAIL AND HEAVY RAIN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 8.3 hours before the alert went out and 131 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
- 972 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
542 WWUS83 KDVN 242017 SPSDVN Special Weather Statement National Weather Service Quad Cities IA/IL 317 PM CDT Sun Oct 24 2021 ILZ035-242045- McDonough IL- 317 PM CDT Sun Oct 24 2021 ...A strong thunderstorm will impact portions of central McDonough County through 345 PM CDT... At 316 PM CDT, trained weather spotters reported a strong thunderstorm near Western Illinois University, or near Macomb, moving northeast at 55 mph. HAZARD...Pea size hail. SOURCE...Trained weather spotters. IMPACT...Minor damage to outdoor objects is possible. This strong thunderstorm will be near... Macomb around 320 PM CDT. Bardolph around 325 PM CDT. Bushnell and New Philadelphia around 330 PM CDT. Prairie City around 335 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4034 9078 4045 9084 4062 9045 4047 9045 TIME...MOT...LOC 2016Z 240DEG 49KT 4044 9073 MAX HAIL SIZE...0.25 IN MAX WIND GUST...<30 MPH $$ McClure
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 23, 8:39 PM CDT | River Flood Watch | DVN | Hancock, McDonough | 28 hr |
| Oct 24, 3:27 PM CDT | Special Weather Statement | DVN | McDonough | 18 min |
| Oct 24, 6:05 PM CDT | Special Weather Statement | DVN | Scotland | 25 min |
Nearby
Special Weather Statements in Illinois, 2021Every special weather statement in 2021
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.