Alert archive / Illinois / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 31, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 25, 2021, 1:24 AM CDT for Bureau County, Putnam County, Illinois. It was in force for 51 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
- Jun 25, 2021, 1:24 AM CDT (06:24 UTC)
- Expired
- Jun 25, 2021, 2:15 AM CDT
- In force
- 51 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bureau County, IL, Putnam County, IL
The radar
The Quad Cities radar (KDVN), 105 km from the middle of the area, began a volume at 06:23 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
Davenport, (KDVN), launched 00:00Z, 6.4 hours before the alert went out and 100 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
- 112 J/kg
- Mixed-layer CIN
- -93 J/kg
- Mixed-layer LCL
- 817 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted.
617 WUUS53 KDVN 250624 SVRDVN ILC011-155-250715- /O.NEW.KDVN.SV.W.0031.210625T0624Z-210625T0715Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Quad Cities IA/IL 124 AM CDT Fri Jun 25 2021 The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for... Putnam County in north central Illinois... Southeastern Bureau County in north central Illinois... * Until 215 AM CDT. * At 124 AM CDT, a severe thunderstorm was located over Tiskilwa, or 7 miles west of Hennepin, moving east at 25 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * This severe thunderstorm will be near... Bureau Junction around 140 AM CDT. Other locations in the path of this severe thunderstorm include Hennepin, DePue, Spring Valley, Granville, Ladd, McNabb and Dalzell. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a sturdy building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4115 8959 4136 8957 4140 8917 4115 8917 TIME...MOT...LOC 0624Z 264DEG 23KT 4127 8948 TORNADO...POSSIBLE HAIL...<.75IN WIND...60MPH $$ McClure
3 follow-up statements
045 WWUS53 KDVN 250636 SVSDVN Severe Weather Statement National Weather Service Quad Cities IA/IL 136 AM CDT Fri Jun 25 2021 ILC011-155-250715- /O.CON.KDVN.SV.W.0031.000000T0000Z-210625T0715Z/ Putnam IL-Bureau IL- 136 AM CDT Fri Jun 25 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT FOR PUTNAM AND SOUTHEASTERN BUREAU COUNTIES... At 136 AM CDT, severe thunderstorms were located along a line extending from near Princeton to near Hennepin to near Henry, moving east at 25 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. These severe storms will be near... Bureau Junction around 140 AM CDT. Other locations in the path of these severe thunderstorms include Hennepin, DePue, Granville, Spring Valley, Ladd, McNabb and Dalzell. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4115 8959 4136 8957 4140 8917 4115 8917 TIME...MOT...LOC 0636Z 272DEG 23KT 4137 8943 4125 8939 4116 8941 TORNADO...POSSIBLE HAIL...<.75IN WIND...60MPH $$ McClure
061 WWUS53 KDVN 250652 SVSDVN Severe Weather Statement National Weather Service Quad Cities IA/IL 152 AM CDT Fri Jun 25 2021 ILC011-155-250715- /O.CON.KDVN.SV.W.0031.000000T0000Z-210625T0715Z/ Putnam IL-Bureau IL- 152 AM CDT Fri Jun 25 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT FOR PUTNAM AND SOUTHEASTERN BUREAU COUNTIES... At 151 AM CDT, severe thunderstorms were located along a line extending from near DePue to near Hennepin to near Henry, moving east at 25 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. These severe storms will be near... DePue around 155 AM CDT. Other locations in the path of these severe thunderstorms include Granville, Spring Valley, Ladd, McNabb and Dalzell. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4115 8959 4136 8957 4140 8917 4115 8917 TIME...MOT...LOC 0651Z 265DEG 23KT 4137 8937 4123 8935 4116 8935 HAIL...<.75IN WIND...60MPH $$ McClure
230
WWUS53 KDVN 250705
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
205 AM CDT Fri Jun 25 2021
ILC011-155-250715-
/O.EXP.KDVN.SV.W.0031.000000T0000Z-210625T0715Z/
Putnam IL-Bureau IL-
205 AM CDT Fri Jun 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR PUTNAM AND SOUTHEASTERN BUREAU
COUNTIES WILL EXPIRE AT 215 AM CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with these thunderstorms.
LAT...LON 4115 8959 4136 8957 4140 8917 4115 8917
TIME...MOT...LOC 0705Z 264DEG 23KT 4138 8926 4124 8924 4117 8924
$$
McClureThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 12:36 AM CDT | Special Weather Statement | DVN | Hancock, McDonough | 24 min |
| Jun 25, 1:44 AM CDT | Flash Flood Warning | DVN | Bureau, Henry | 6 hr |
| Jun 25, 2:16 PM CDT | Special Weather Statement | DVN | Jo Daviess | 29 min |
| Jun 25, 2:34 PM CDT | Special Weather Statement | DVN | Stephenson | 41 min |
| Jun 25, 2:48 PM CDT | Special Weather Statement | DVN | Jo Daviess | 57 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2021Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.