Alert archive / Iowa / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 52, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Jul 14, 2021, 8:14 PM CDT for Benton County, Linn County, Iowa. It was in force for 46 min. 8 reports 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 14, 2021, 8:14 PM CDT (01:14 UTC)
- Expired
- Jul 14, 2021, 9:00 PM CDT
- In force
- 46 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Benton County, IA, Linn County, IA
The radar
The Quad Cities radar (KDVN), 110 km from the middle of the area, began a volume at 01:15 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 14, 8:20 PM CDT | FUNNEL CLOUD | Palo, IA | RELAYED VIA LINN COUNTY EMA. |
| Jul 14, 8:30 PM CDT | FUNNEL CLOUD | 3 Sw Center Point, IA | FUNNEL CLOUD EXTENDING HALF WAY TO THE GROUND. |
| Jul 14, 8:46 PM CDT | TORNADO | 4 Nne Lafayette, IA | BRIEF TORNADO. DELAYED REPORT FROM EMERGENCY MANAGER. |
| Jul 14, 8:50 PM CDT | TSTM WND DMG | 3 Nnw Center Point, IA | LARGE AREA OF FLATTENED CORN. |
| Jul 14, 8:50 PM CDT | TORNADO | 4 Nne Lafayette, IA | BRIEF TOUCHDOWN IN A FIELD WITH NO VISIBLE DAMAGE. |
| Jul 14, 8:52 PM CDT | TORNADO | 3 N Center Point, IA | BRIEF TOUCHDOWN IN A FIELD WITH NO VISIBLE DAMAGE. |
| Jul 14, 8:55 PM CDT | FUNNEL CLOUD | 3 Sw Paris, IA | BROAD ROTATING FUNNEL CLOUD EXTENDING HALF WAY DOWN FROM CLOUD BASE. |
| Jul 14, 9:10 PM CDT | FUNNEL CLOUD | Paris, IA | RELAYING SPOTTER REPORT OF FUNNEL CLOUD CLOSE TO GROUND ALONG PARIS ROAD. DARKNESS MAKING IT DIFFICULT TO SEE IF IT IS REACHING THE GROUND. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 14, 2:35 PM CDT | Tornado Watch | SPC | 8 hr |
| Jul 14, 6:13 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 1.2 hours before the alert went out and 116 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
- 2569 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 832 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 253 m²/s²
- 0-3 km storm-relative helicity
- 346 m²/s²
- Significant tornado parameter
- 3.2
- Supercell composite
- 23.4
The text
As transmitted.
130 WUUS53 KDVN 150114 SVRDVN IAC011-113-150200- /O.NEW.KDVN.SV.W.0052.210715T0114Z-210715T0200Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Quad Cities IA/IL 814 PM CDT Wed Jul 14 2021 The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for... Northeastern Benton County in east central Iowa... Northern Linn County in east central Iowa... * Until 900 PM CDT. * At 814 PM CDT, severe thunderstorms were located along a line extending from near Urbana to near Newhall, moving east at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Severe thunderstorms will be near... Center Point around 820 PM CDT. Other locations in the path of these severe thunderstorms include Palo, Alburnett, Cedar Rapids, Paris, Central City, Toddville, Hiawatha, Robins and Marion. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 900 PM CDT for east central Iowa. A Tornado Watch also remains in effect until midnight CDT for east central Iowa. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4225 9143 4202 9161 4205 9207 4226 9190 TIME...MOT...LOC 0114Z 274DEG 24KT 4224 9181 4207 9198 TORNADO...POSSIBLE HAIL...<.75IN WIND...60MPH $$ Uttech
1 follow-up statement
809 WWUS53 KDVN 150125 SVSDVN Severe Weather Statement National Weather Service Quad Cities IA/IL 825 PM CDT Wed Jul 14 2021 IAC011-113-150200- /O.CON.KDVN.SV.W.0052.000000T0000Z-210715T0200Z/ Benton IA-Linn IA- 825 PM CDT Wed Jul 14 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR NORTHEASTERN BENTON AND NORTHERN LINN COUNTIES... At 825 PM CDT, severe thunderstorms were located along a line extending from near Walker to near Vinton, moving east at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Paris, Center Point, Palo, Toddville, Hiawatha, Robins, Alburnett, Marion and Central City. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 900 PM CDT for east central Iowa. A Tornado Watch also remains in effect until midnight CDT for east central Iowa. For your protection move to an interior room on the lowest floor of a sturdy building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4204 9159 4208 9205 4226 9190 4225 9143 TIME...MOT...LOC 0125Z 265DEG 27KT 4226 9173 4210 9199 TORNADO...POSSIBLE HAIL...<.75IN WIND...60MPH $$ Uttech
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 7:28 PM CDT | Tornado Warning | DVN | Buchanan, Delaware | 17 min |
| Jul 14, 7:37 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Linn | 38 min |
| Jul 14, 7:40 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 35 min |
| Jul 14, 7:43 PM CDT | Tornado Warning | DVN | Benton | 32 min |
| Jul 14, 7:43 PM CDT | Tornado Warning | DVN | Buchanan, Delaware | 32 min |
| Jul 14, 7:53 PM CDT | Tornado Warning | DVN | Benton | 27 min |
| Jul 14, 8:11 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 19 min |
| Jul 14, 8:19 PM CDT | Tornado Warning | DVN | Benton, Linn | 22 min |
| Jul 14, 8:31 PM CDT | Tornado Warning | DVN | Benton, Linn | 29 min |
| Jul 14, 8:56 PM CDT | Tornado Warning | DVN | Delaware, Linn | 49 min |
| Jul 14, 9:08 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa | 32 min |
| Jul 14, 9:29 PM CDT | Tornado Warning | DVN | Delaware, Jones | 46 min |
| Jul 14, 10:02 PM CDT | Tornado Warning | DVN | Jones | 43 min |
| Jul 14, 10:14 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Jones, Linn | 46 min |
| Jul 14, 10:34 PM CDT | Tornado Warning | DVN | Cedar | 26 min |
| Jul 14, 10:41 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 49 min |
| Jul 14, 10:52 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jones, Scott | 38 min |
| Jul 14, 11:10 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 50 min |
| Jul 15, 8:58 AM CDT | Special Weather Statement | DVN | Henry, Jefferson | 47 min |
| Jul 15, 5:23 PM CDT | Special Weather Statement | DVN | Clinton | 37 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.