Alert archive / Illinois / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 310, NWS Quad Cities, IA

July 15, 2024Carroll County, Jo Daviess County, Stephenson County, Illinois; Dubuque County, Jackson County, Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at Jul 15, 2024, 6:28 PM CDT for Carroll County, Jo Daviess County, Stephenson County, Illinois; Dubuque County, Jackson County, Iowa. It was in force for 77 min. 20 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 15, 2024, 6:28 PM CDT (23:28 UTC)
Expired: Jul 15, 2024, 7:45 PM CDT
In force: 77 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Tornado: Possible
Damage threat: Destructive
Hail: 0.75 in
Wind: 90.0 mph

Counties Dubuque County, IA, Jackson County, IA, Carroll County, IL, Jo Daviess County, IL, Stephenson County, IL

The radar

The Quad Cities radar (KDVN), 90 km from the middle of the area, began a volume at 23:29 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 15, 6:30 PM CDT	TSTM WND GST 80	3 Wnw Galena, IL	Estimated 80 mph winds with damage to well build slide at this location.
Jul 15, 6:40 PM CDT	TORNADO	4 Sse Loran, IL	A tornado developed just northeast of Hanover in Jo Daviess County, and tracked to the southeast around 50 mph along an intermittent path around 30 miles. The tornado caused significant roof damage to a home east of Hanover. The tornado then moved into Carroll
Jul 15, 6:44 PM CDT	TSTM WND GST 60	Elizabeth, IL	Estimated winds of 60 mph at the leading edge of the line, with low visibility.
Jul 15, 6:45 PM CDT	TSTM WND DMG	Elizabeth, IL	large tree branches down, garden corn flattened. Delayed report.
Jul 15, 6:48 PM CDT	TORNADO	3 Nnw Elmoville, IL	A tornado developed just east of Woodbine in Jo Daviess County, and moved southeast along an intermittent 8 mile path. The tornado downed numerous trees along S. Massbach Road. The tornado was rated EF-1 with maximum winds around 100 mph. Thanks to emergency m
Jul 15, 6:50 PM CDT	TORNADO	4 Nne Stockton, IL	A tornado developed northwest of Stockton in Jo Daviess County, and moved E/SE along an intermittent 15 mile path, before lifting near Lena in Stephenson County. The tornado snapped a wooden power pole near the base, snapped tree trunks, and impacted a farmste
Jul 15, 6:51 PM CDT	TORNADO	6 Nnw Stockton, IL	A public video showed a brief tornado in rural areas northwest of Stockton. There was no observed damage to assign a rating, so the tornado is classified as EF-Unknown. Times estimated by radar.
Jul 15, 6:56 PM CDT	TSTM WND GST 84	3 N Stockton, IL
Jul 15, 7:00 PM CDT	TSTM WND DMG	3 N Stockton, IL	Several tree branches down of various diameter down once that is 1 foot and a half.
Jul 15, 7:00 PM CDT	TSTM WND DMG	Warren, IL	Tree uprooted by the thunderstorm winds.
Jul 15, 7:05 PM CDT	TSTM WND DMG	Pearl City, IL	Photo received on social media of a large tree limb that was downed by the winds, nearly falling on a garage in town.
Jul 15, 7:25 PM CDT	TSTM WND DMG	Freeport, IL	Tree reported down. Time estimated from radar data.
Jul 15, 7:25 PM CDT	TSTM WND GST 93	Lena, IL
Jul 15, 7:26 PM CDT	TORNADO	2 Sw Dakota, IL	Trained storm spotter video confirmed a short-lived and non-damaging tornado southwest of Dakota, or northeast of Freeport.
Jul 15, 7:30 PM CDT	TSTM WND DMG	German Valley, IL	Social media image received of a large tree that was snapped, with multiple large branches downed by the winds.
Jul 15, 7:31 PM CDT	TSTM WND GST 55	Freeport Albertus, IL
Jul 15, 7:33 PM CDT	TSTM WND DMG	3 Ne Freeport, IL	Multiple downed trees. Time estimated using radar.
Jul 15, 7:34 PM CDT	TSTM WND DMG	2 E Freeport, IL	Delayed report. Report from mPING: 3-inch tree limbs broken; Power poles broken.
Jul 15, 7:35 PM CDT	TSTM WND GST 55	Freeport Albertus, IL	AWOS station KFEP Freeport Arpt.
Jul 15, 7:37 PM CDT	TSTM WND DMG	Ridott, IL	Delayed report. Report from mPING: 3-inch tree limbs broken; Power poles broken.

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 15, 3:18 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.5 hours before the alert went out and 86 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1844 J/kg
Mixed-layer CIN: -134 J/kg
Mixed-layer LCL: 967 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

As transmitted.

487 
WUUS53 KDVN 152328
SVRDVN
ILC015-085-177-IAC061-097-160045-
/O.NEW.KDVN.SV.W.0310.240715T2328Z-240716T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Quad Cities IA/IL
628 PM CDT Mon Jul 15 2024

The National Weather Service in the Quad Cities has issued a

* Severe Thunderstorm Warning for...
  Jo Daviess County in northwestern Illinois...
  Northern Carroll County in northwestern Illinois...
  Stephenson County in northwestern Illinois...
  Northern Jackson County in east central Iowa...
  Southeastern Dubuque County in northeastern Iowa...

* Until 745 PM CDT.

* At 627 PM CDT, a severe thunderstorm was located over Aiken, or
  over Galena, moving east at 50 mph.

  THIS IS A DESTRUCTIVE STORM FOR Galena, Mount Carroll and Freeport.

  HAZARD...90 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...You are in a life-threatening situation. Flying debris 
           may be deadly to those caught without shelter. Mobile 
           homes will be heavily damaged or destroyed. Homes and 
           businesses will have substantial roof and window damage. 
           Expect extensive tree damage and power outages.

* Locations impacted include...
  Dubuque, Freeport, Galena, Mount Carroll, Lena, Bellevue, Stockton,
  East Dubuque, Lanark, Warren, Hanover, Pearl City, Elizabeth,
  Shannon, Cedarville, Davis, Woodbine, Dakota, German Valley, and
  Scales Mound.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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 4251 9064 4250 8940 4220 8940 4220 8969
      4202 8969 4225 9080
TIME...MOT...LOC 2327Z 281DEG 45KT 4238 9043 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...90 MPH

$$

DC

4 follow-up statements

674 
WWUS53 KDVN 152355
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
655 PM CDT Mon Jul 15 2024

ILC015-085-177-IAC061-097-160045-
/O.CON.KDVN.SV.W.0310.000000T0000Z-240716T0045Z/
Jo Daviess IL-Carroll IL-Stephenson IL-Jackson IA-Dubuque IA-
655 PM CDT Mon Jul 15 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR JO DAVIESS...NORTHERN CARROLL...STEPHENSON...NORTHERN JACKSON AND
SOUTHEASTERN DUBUQUE COUNTIES...

At 654 PM CDT, a severe thunderstorm was located over Stockton
Airport, or 15 miles north of Mount Carroll, moving east at 50 mph.

THIS IS A DESTRUCTIVE STORM FOR Mount Carroll and Freeport.

HAZARD...90 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be heavily damaged or destroyed. Homes and businesses 
         will have substantial roof and window damage. Expect 
         extensive tree damage and power outages.

Locations impacted include...
Freeport, Galena, Mount Carroll, Lena, Bellevue, Stockton, Lanark,
Warren, Hanover, Pearl City, Elizabeth, Shannon, Cedarville, Davis,
Woodbine, Dakota, German Valley, Scales Mound, Apple River, and
Winslow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 100 AM CDT for northwestern
Illinois.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4250 9049 4250 8940 4220 8940 4220 8969
      4202 8969 4225 9080
TIME...MOT...LOC 2354Z 280DEG 43KT 4231 9002 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...90 MPH

$$

DC

075 
WWUS53 KDVN 160007
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
707 PM CDT Mon Jul 15 2024

IAC061-160015-
/O.CAN.KDVN.SV.W.0310.000000T0000Z-240716T0045Z/
Dubuque IA-
707 PM CDT Mon Jul 15 2024

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DUBUQUE COUNTY IS
CANCELLED...

The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 100 AM CDT for northwestern
Illinois.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northwestern Illinois...and east central Iowa.

&&

LAT...LON 4250 8940 4220 8940 4220 8969 4202 8969
      4223 9066 4250 9033
TIME...MOT...LOC 0005Z 280DEG 43KT 4229 8985 

$$

ILC015-085-177-IAC097-160045-
/O.CON.KDVN.SV.W.0310.000000T0000Z-240716T0045Z/
Jo Daviess IL-Carroll IL-Stephenson IL-Jackson IA-
707 PM CDT Mon Jul 15 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR JO DAVIESS...NORTHERN CARROLL...STEPHENSON AND CENTRAL JACKSON
COUNTIES...

At 705 PM CDT, a severe thunderstorm was located over Pearl City, or
10 miles west of Freeport, moving east at 50 mph.

THIS IS A DESTRUCTIVE STORM FOR Lena, Bellevue, Davis, Winslow.

HAZARD...90 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be heavily damaged or destroyed. Homes and businesses 
         will have substantial roof and window damage. Expect 
         extensive tree damage and power outages.

Locations impacted include...
Freeport, Galena, Mount Carroll, Lena, Bellevue, Stockton, Lanark,
Warren, Hanover, Pearl City, Elizabeth, Shannon, Cedarville, Davis,
Woodbine, Dakota, German Valley, Scales Mound, Apple River, and
Winslow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 100 AM CDT for northwestern
Illinois.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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 4250 8940 4220 8940 4220 8969 4202 8969
      4223 9066 4250 9033
TIME...MOT...LOC 0005Z 280DEG 43KT 4229 8985 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...90 MPH

$$

DC

119 
WWUS53 KDVN 160024
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
724 PM CDT Mon Jul 15 2024

ILC015-085-177-IAC097-160045-
/O.CON.KDVN.SV.W.0310.000000T0000Z-240716T0045Z/
Jo Daviess IL-Carroll IL-Stephenson IL-Jackson IA-
724 PM CDT Mon Jul 15 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR JO DAVIESS...NORTHERN CARROLL...STEPHENSON AND EAST CENTRAL
JACKSON COUNTIES...

At 723 PM CDT, a severe thunderstorm was located over Albertus
Airport, or near Freeport, moving east at 50 mph.

HAZARD...90 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be heavily damaged or destroyed. Homes and businesses 
         will have substantial roof and window damage. Expect 
         extensive tree damage and power outages.

Locations impacted include...
Freeport, Mount Carroll, Lena, Stockton, Lanark, Warren, Hanover,
Pearl City, Elizabeth, Shannon, Cedarville, Davis, Woodbine, Dakota,
German Valley, Scales Mound, Apple River, Winslow, Rock City, and
Ridott.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 100 AM CDT for northwestern
Illinois.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4250 8940 4220 8940 4220 8969 4202 8969
      4219 9046 4250 9024
TIME...MOT...LOC 0023Z 281DEG 45KT 4224 8954 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...90 MPH

$$

DC

879 
WWUS53 KDVN 160034
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
734 PM CDT Mon Jul 15 2024

IAC097-160043-
/O.CAN.KDVN.SV.W.0310.000000T0000Z-240716T0045Z/
Jackson IA-
734 PM CDT Mon Jul 15 2024

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL JACKSON COUNTY IS
CANCELLED...

The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 100 AM CDT for northwestern
Illinois.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northwestern Illinois...and east central Iowa.

&&

LAT...LON 4220 8940 4220 8969 4202 8969 4214 9021
      4217 9026 4250 8985 4250 8940
TIME...MOT...LOC 0033Z 281DEG 45KT 4222 8937 

$$

ILC015-085-177-160045-
/O.CON.KDVN.SV.W.0310.000000T0000Z-240716T0045Z/
Jo Daviess IL-Carroll IL-Stephenson IL-
734 PM CDT Mon Jul 15 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR SOUTHEASTERN JO DAVIESS...NORTHERN CARROLL AND STEPHENSON
COUNTIES...

At 733 PM CDT, a severe thunderstorm was located over Seward, or 8
miles northwest of Byron, moving east at 50 mph.

THIS IS A DESTRUCTIVE STORM FOR Freeport

HAZARD...90 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be heavily damaged or destroyed. Homes and businesses 
         will have substantial roof and window damage. Expect 
         extensive tree damage and power outages.

Locations impacted include...
Freeport, Mount Carroll, Lena, Stockton, Lanark, Pearl City, Shannon,
Cedarville, Davis, Dakota, German Valley, Winslow, Rock City, Ridott,
Massbach, Buena Vista, Loran, Rock Grove, Oneco, and Orangeville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 100 AM CDT for northwestern
Illinois.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4220 8940 4220 8969 4202 8969 4214 9021
      4217 9026 4250 8985 4250 8940
TIME...MOT...LOC 0033Z 281DEG 45KT 4222 8937 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...90 MPH

$$

DC

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 14, 7:03 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Whiteside	42 min
Jul 14, 7:05 PM CDT	Severe Thunderstorm Warning	DVN	Jo Daviess	55 min
Jul 14, 7:23 PM CDT	Severe Thunderstorm Warning	DVN	Rock Island	39 min
Jul 14, 7:27 PM CDT	Tornado Warning	DVN	Carroll, Jo Daviess	32 min
Jul 14, 7:45 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Jo Daviess, Stephenson	60 min
Jul 14, 7:47 PM CDT	Severe Thunderstorm Warning	DVN	Jo Daviess, Stephenson	58 min
Jul 14, 7:49 PM CDT	Severe Thunderstorm Warning	DVN	Carroll	41 min
Jul 14, 8:08 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Whiteside	52 min
Jul 14, 8:11 PM CDT	Special Weather Statement	DVN	Rock Island	49 min
Jul 14, 8:21 PM CDT	Flash Flood Warning	DVN	Carroll, Jo Daviess, Stephenson	4 hr
Jul 14, 8:25 PM CDT	Severe Thunderstorm Warning	DVN	Stephenson	35 min
Jul 14, 8:40 PM CDT	Tornado Warning	DVN	Carroll, Whiteside	35 min
Jul 14, 8:45 PM CDT	Severe Thunderstorm Warning	DVN	Whiteside	45 min
Jul 14, 8:48 PM CDT	River Flood Warning	DVN	Henry, Rock Island	9 days
Jul 14, 8:49 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Henry, Rock Island, Whiteside	41 min
Jul 14, 8:58 PM CDT	Severe Thunderstorm Warning	DVN	Mercer, Rock Island	47 min
Jul 14, 9:44 PM CDT	Special Weather Statement	DVN	Mercer	46 min
Jul 14, 10:03 PM CDT	Special Weather Statement	DVN	Bureau	42 min
Jul 14, 10:21 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Whiteside	39 min
Jul 14, 10:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Henry, Rock Island, Whiteside	49 min
Jul 14, 10:54 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Henry, Putnam, Whiteside	66 min
Jul 15, 12:35 AM CDT	Special Weather Statement	DVN	Warren	40 min
Jul 15, 2:33 AM CDT	Heat Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	17 hr
Jul 15, 7:45 AM CDT	River Flood Warning	DVN	Whiteside	4 days
Jul 15, 2:22 PM CDT	Flood Watch	DVN	Bureau, Carroll, Henry, Jo Daviess, Putnam, Stephenson and 1 more	8 hr
Jul 15, 5:44 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DVN	Jo Daviess	61 min
Jul 15, 6:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Rock Island	63 min
Jul 15, 6:38 PM CDT	Tornado Warning	DVN	Carroll, Jo Daviess, Stephenson	52 min
Jul 15, 6:42 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DVN	Bureau, Carroll, Henry, Rock Island, Whiteside	78 min
Jul 15, 6:55 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Mercer	50 min
Jul 15, 6:58 PM CDT	Tornado Warning	DVN	Rock Island, Whiteside	47 min
Jul 14, 8:38 PM CDT	Special Weather Statement	DVN	Muscatine	52 min
Jul 14, 9:07 PM CDT	Special Weather Statement	DVN	Keokuk	38 min
Jul 14, 9:33 PM CDT	Special Weather Statement	DVN	Clinton, Jackson	42 min
Jul 14, 9:46 PM CDT	Special Weather Statement	DVN	Scott	44 min
Jul 14, 9:51 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Scott	54 min
Jul 14, 10:06 PM CDT	Special Weather Statement	DVN	Clinton	39 min
Jul 15, 3:38 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan	67 min
Jul 15, 4:36 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Benton, Buchanan, Delaware, Linn	54 min
Jul 15, 4:51 PM CDT	Tornado Warning Tornado observed	DVN	Benton, Buchanan, Linn	39 min
Jul 15, 4:56 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Benton, Linn	64 min
Jul 15, 4:58 PM CDT	Flash Flood Warning	DVN	Benton, Buchanan	3 hr
Jul 15, 5:20 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Benton, Buchanan, Cedar, Delaware, Dubuque, Iowa and 3 more	70 min
Jul 15, 5:22 PM CDT	Tornado Warning Tornado observed	DVN	Benton, Buchanan, Delaware, Linn	38 min
Jul 15, 5:34 PM CDT	Tornado Warning	DVN	Cedar, Jones, Linn	41 min
Jul 15, 5:35 PM CDT	Flash Flood Warning	DVN	Benton, Buchanan, Linn	3 hr
Jul 15, 5:54 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DVN	Benton, Cedar, Clinton, Delaware, Dubuque, Jackson and 3 more	66 min
Jul 15, 6:08 PM CDT	Flash Flood Warning	DVN	Linn	3 hr
Jul 15, 6:10 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Benton, Iowa, Jefferson, Johnson, Keokuk, Linn and 1 more	65 min
Jul 15, 6:15 PM CDT	Flash Flood Warning	DVN	Delaware, Dubuque	2 hr
Jul 15, 6:19 PM CDT	Tornado Warning	DVN	Cedar, Clinton, Jackson, Jones	41 min
Jul 15, 6:47 PM CDT	Flash Flood Warning	DVN	Dubuque, Jackson	78 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2024 Severe Thunderstorm Warnings in Iowa, 2024 Every severe thunderstorm warning in 2024

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.