Heads up! Small hail spotted in these regions: Buffalo, WY • McAllen, TXATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Roswell, NM • Wilmington, NC • Idaho Falls, ID • Kingsport, TN • Grand Junction, CO • Champaign, IL • Knoxville, TN • Farmington, NM • Louisville, KYHeads up! Small hail spotted in these regions: Buffalo, WY • McAllen, TXATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Roswell, NM • Wilmington, NC • Idaho Falls, ID • Kingsport, TN • Grand Junction, CO • Champaign, IL • Knoxville, TN • Farmington, NM • Louisville, KY
Hi folks! Stay ahead of the storm with a 48-hour severe weather outlook, precise hail alerts, and live hail tracking. Access hail insights, historical hail maps, and detailed reports across 300+ regions for better planning and fewer "uh-oh" moments. Stay informed, stay safe, and stay protected - all completely free. Hi folks! Stay ahead of the storm with a 48-hour severe weather outlook, precise hail alerts, and live hail tracking. Access hail insights, historical hail maps, and detailed reports across 300+ regions for better planning and fewer "uh-oh" moments. Stay informed, stay safe, and stay protected - all completely free.
NOAA/NWS STORM PREDICTION CENTER REPORTS + U.S. CENSUS DATA
Hail, Wind & Tornado Reports in Calhoun County, IA
Public hail, wind, and tornado reports across Calhoun County, IA from June 27, 1959 through July 8, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.
Example: 50579 — search hail, wind and tornado public reports for any U.S. ZIP code
Hail Reports
127
Wind Reports
133
Tornado Reports
33
Max Hail Size
4.00″
Source NOAA SPC · NWS Local Storm ReportsCoverage Calhoun County, IA · 1959–presentUpdated Daily · last Jul 8, 2026
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .23 NE Rockwell City, IA
2.00″hail
Jun 30, 2014 9:07 AM CST-6
Hail report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .44 SW Rockwell City, IA
3.00″hail
Jun 30, 2014 9:06 AM CST-6
Hail report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Hail Report Description: Windshields broken in cars across Rockwell City.
NWS Hail Report Location: .35 WSW Rockwell City, IA
1.75″hail
Jun 30, 2014 9:06 AM CST-6
Hail report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .43 SW Rockwell City, IA
2.00″hail
Jun 30, 2014 9:06 AM CST-6
Hail report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .07 S Rockwell City, IA
1.00″hail
Jun 30, 2014 9:05 AM CST-6
Hail report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.12 S Rockwell City Arpt, IA
Showing 15 of 30
Hail Damage Risk for Your Home+
Hail reports describe hail by diameter, often comparing stone size to familiar objects like peas, quarters, golf balls, and softballs. Use this guide as a starting point for possible hail damage to your roof, siding, gutters, vents, windows, and exterior. Actual hail damage depends on hail hardness, density, wind speed, impact angle, roof age, shingle condition, roof pitch, roofing material, installation quality, and prior storm damage.
Pea
0.25″
Low
Usually too small to cause hail damage to most sound asphalt roofs, siding, or gutters.
Mothball
0.50″
Sub-Severe Watch
Below the NWS severe-hail threshold, but not always harmless. Repeated small hail can scuff surfaces, wear aging shingles, and loosen protective granules over time.
Penny
0.75″
Minor / Watch
Below the NWS severe-hail threshold, but roof hail damage is still possible on older, brittle, poorly installed, or previously damaged shingles. May also mark screens, vents, gutters, and soft metal.
Nickel
0.88″
Minor / Watch
Still below the severe-hail threshold, but large enough to leave visible marks on soft metal and add wear to older or hail-weakened roof shingles.
Quarter
1.00″
Watch
The NWS severe-hail threshold. Quarter-size hail can bruise shingles, dent soft metal, and create roof hail damage worth checking.
Half Dollar
1.25″
Watch
More likely to dent gutters, vents, flashing, and siding. Hail damage risk rises quickly on older roofs or hail-weakened shingles.
Ping Pong / Walnut
1.50″
Likely
Hail damage becomes more likely, including bruised shingles, granule loss, dented siding, and damaged roof vents.
Golf Ball
1.75″
Likely
Often causes roof hail damage, cracked shingles, dented gutters, damaged flashing, and siding impacts. A roof inspection is recommended.
Hen Egg
2.00″
Serious
Can crack or puncture shingles, expose mat, dent siding, and cause widespread hail damage across the roof and exterior.
Tennis Ball
2.50″
Serious
Can cause heavy roof hail damage, punctured siding, broken skylights, damaged vents, and widespread exterior damage.
Baseball
2.75″
Major
Major hail damage is likely, including severe roof impacts, damaged siding, broken windows, and possible major roof repairs.
Tea Cup / Large Apple
3.00″
Major
Can cause heavy hail damage across the roof, siding, gutters, windows, and exterior. Significant repairs are often needed.
Softball
4.00″
Extreme
Destructive hail damage. Can severely damage roofing materials, siding, windows, gutters, vents, vehicles, and exterior surfaces.
Grapefruit
4.50″
Extreme
Catastrophic hail damage risk for roofs, windows, vehicles, siding, gutters, and exterior surfaces.
Source: NOAA / National Weather Service hail size references are used for hail-size comparisons and the 1.00″ severe-hail threshold. Damage descriptions are general homeowner guidance, not official NOAA/NWS damage ratings. Sub-severe hail under 1.00″ is below the severe threshold, but that does not mean “no roof damage.” Penny- to nickel-size hail can still contribute to granule loss, cosmetic surface marks, and added wear, especially on older, brittle, poorly installed, or previously damaged roofs.
Wind Report Description: Parts of Lohrville is without power. Tree branches reported down.
NWS Wind Report Location: Lohrville, IA
UNKmph
Jul 8, 2026 11:43 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: 5 inch tree limbs down.
NWS Wind Report Location: Rockwell City, IA
UNKmph
Jun 17, 2026 9:30 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: Two semis blown over on US-20.
NWS Wind Report Location: 3 SW Jolley, IA
58mph
Jun 17, 2026 9:25 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: PWS gust.
NWS Wind Report Location: 2 NW Rockwell City, IA
UNKmph
May 18, 2026 2:10 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: Delayed report - report of trees and power lines down in Rockwell City. Time estimated from radar.
NWS Wind Report Location: Rockwell City, IA
62mph
Jul 29, 2025 4:13 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: Measured by personal weather station.
NWS Wind Report Location: 4 SW Rockwell City, IA
UNKmph
Mar 14, 2025 11:35 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: Lean-to shed uprooted from ground... carried and destroyed taking out power lines and slammed into garage. Large healthy pine tree snapped off a couple feet from its base.
NWS Wind Report Location: 5 NNE Lytton, IA
UNKmph
Mar 14, 2025 11:25 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: Empty cattle semi blown over - time estimated.
NWS Wind Report Location: 2 NE Lytton, IA
UNKmph
May 24, 2024 9:15 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: Semi blown over and trees down near Rockwell City.
NWS Wind Report Location: Rockwell City, IA
UNKmph
May 24, 2024 9:15 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: Trees and power lines down.
NWS Wind Report Location: 3 SE Jolley, IA
UNKmph
Aug 6, 2023 2:53 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: Tree Blown down and blocking Highway 175 in Lake City.
NWS Wind Report Location: Lake City, IA
UNKmph
Apr 23, 2022 10:27 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: GRAIN BIN DESTROYED AT RANDS CO-OP. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 4 NNW Lohrville, IA
UNKmph
Dec 15, 2021 11:48 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: MACHINE SHED DAMAGED 1 MILE NORTH OF SOMERS AND STOP SIGNS/HIGHWAY SIGNS BLOWN OVER HWY 20 AT KNIERIM.
NWS Wind Report Location: Knierim, IA
UNKmph
Aug 10, 2020 3:55 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: TREES DOWN... ROOF OFF BUILDING. LOTS OF TREE DAMAGE.
NWS Wind Report Location: 5 NW Lohrville, IA
UNKmph
Aug 10, 2020 3:34 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: 8 INCH TREE LIMBS DOWN. POWER LINES DOWN. TREES DOWN ALL OVER TOWN.
NWS Wind Report Location: Rockwell City, IA
UNKmph
Sep 20, 2018 11:40 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: BRANCHES DOWN - UP TO 10 INCH IN DIAMETER.
NWS Wind Report Location: Rockwell City, IA
65mph
Sep 20, 2018 11:31 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: ESTIMATED WINDS OF 60-70 MPH WHILE DRIVING.
NWS Wind Report Location: 5 SW Jolley, IA
61mph
Sep 20, 2018 11:30 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: RWIS STATION RRWI4.
NWS Wind Report Location: Rockwell City, IA
UNKmph
Aug 27, 2018 2:37 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: LARGE TREE SNAPPED AT BASE ALONG WITH SEVERAL SMALL BRANCHES AND LIMBS DOWN. LOST POWER. DELAYED REPORT. TIME ESTIMATED BY RADAR.
NWS Wind Report Location: 2 E Manson, IA
UNKmph
Jun 17, 2018 11:09 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: TREE BRANCHES APPROX. 5 INCHES DIAMETER DOWN.
NWS Wind Report Location: Rockwell City, IA
UNKmph
May 17, 2017 1:54 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: TREE LIMBS DOWN IN MANSON. SIZE UNKNOWN.
NWS Wind Report Location: Manson, IA
73mph
May 17, 2017 1:45 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: ROCKWELL CITY RWIS RECORDED A 73 MPH WIND GUST.
NWS Wind Report Location: 3 SE Jolley, IA
60mph
May 17, 2017 1:44 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Manson, IA
UNKmph
Mar 6, 2017 11:00 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: 2 INCH BRANCHES BLOWN OVER. TIN BLOWN OFF METAL BUILDINGS. DOORS BLOWN OFF GRAIN ELEVATOR.
NWS Wind Report Location: Rockwell City, IA
60mph
Mar 6, 2017 10:50 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: NICKEL SIZE HAIL AS WELL. .
NWS Wind Report Location: 1 SW Rockwell City, IA
UNKmph
Aug 10, 2016 8:56 PM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: SEVERAL 3-5 INCH DIAMETER TREE BRANCHES DOWN THROUGHOUT ROCKWELL CITY. DELAYED REPORT. TIME ESTIMATED BY RADAR.
NWS Wind Report Location: Rockwell City, IA
UNKmph
Jul 7, 2016 6:04 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: SPOTTER REPORTED NUMEROUS LARGE BRANCHES... 3-4 INCHES IN DIAMETER... DOWN IN TOWN ALONG WITH A COUPLE OF TREES... 9-12 INCHES IN DIAMETER... DOWN. ALSO REPORTED POWER LINES DOWN... BUT UNKNOWN IF TREES CAUSED IT. DELAYED REPORT... TIME RADAR ESTIMATED.
NWS Wind Report Location: Rockwell City, IA
UNKmph
Jul 7, 2016 6:03 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: 12 INCH IN DIAMETER TREE LIMBS DOWN. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: Manson, IA
58mph
Jul 6, 2016 4:51 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: MEASURED BY IDOT RWIS MESONET.
NWS Wind Report Location: 3 SE Jolley, IA
62mph
Jul 6, 2016 4:40 AM UTC
Wind report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Wind Report Description: MEASURED BY HOME WEATHER STATION.
NWS Wind Report Location: Lake City, IA
Showing 15 of 30
Wind Damage Risk for Your Home+
Storm reports list thunderstorm wind gusts in mph. The NWS marks storms as severe at 58+ mph, but wind damage to your home depends on roof age, shingle condition, installation, exposure, nearby trees, and prior hail or wind damage.
Below Severe
Under 58 mph
Minor
Usually little damage to a sound roof, but loose shingles, flashing, or debris may shift.
Severe
58–74 mph
Watch
Can loosen shingles, lift flashing, break limbs, and damage gutters, siding, fences, or trim.
Damaging
75–90 mph
Serious
Can peel shingles, damage vents, tear siding, rip gutters, and expose weak roof areas.
Extreme
90+ mph
Major
Can cause major roof covering loss, tree damage, broken windows, and structural damage.
Source: NOAA / National Weather Service storm reports. Gusts may be measured or estimated; actual wind damage varies by roof condition, exposure, and prior hail or wind damage.
Latest NWS Tornado Reports in Calhoun County
30 reports
UNKcategory
May 18, 2026 2:01 AM UTC
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: Local Fire department reports tornado.
NWS Tornado Report Location: Pomeroy, IA
UNKcategory
Apr 16, 2024 7:59 PM UTC
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 2 S Manson, IA
UNKcategory
Apr 16, 2024 7:35 PM UTC
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 5 WSW Knierim, IA
UNKcategory
May 13, 2023 11:22 PM UTC
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 3 E Pomeroy, IA
UNKcategory
Jul 14, 2021 9:01 PM UTC
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: IOWA STATE PATROL REPORTS CONSIDERABLE DAMAGE TO A HOUSEY. TIME ESTIMATED.
NWS Tornado Report Location: 1 ENE Lake City, IA
UNKcategory
Jul 14, 2021 9:01 PM UTC
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: IOWA STATE PATROL REPORTS TREES DOWN IN LAKE CITY. TIME ESTIMATED.
NWS Tornado Report Location: Lake City, IA
UNKcategory
May 28, 2018 9:48 PM UTC
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: VERY WEAK AND SHORT-LIVED LANDSPOUT JUST NORTH OF LOHRVILLE. NO DAMAGE REPORTED. LOCATION ESTIMATED.
NWS Tornado Report Location: 2 N Lohrville, IA
EF0category
May 10, 2015 7:14 PM CST-6
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: This was a broad and brief tornado that caused little to no damage. Reported by a spotter and likely track found in satellite data.
NWS Tornado Report Location: 2.62 WSW Manson, IA
EF1category
May 10, 2015 6:22 PM CST-6
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: Tornado moved from Carroll County into Calhoun County. It moved across the western side of Lake City, doing EF1 damage to houses and the high school. It remained in rural areas of Calhoun County for the remainder of it's path, broadening as it went along. The tornado lifted shortly before crossing Highway 20.
NWS Tornado Report Location: 4.98 SSW Lake City, IA
EF0category
May 29, 2008 8:25 PM CST-6
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: A tornado caused damage to 4 farmsteads with damage to trees and some minor damage to the farmstead.
NWS Tornado Report Location: 1.69 W Farnhamville, IA
EF1category
May 29, 2008 8:23 PM CST-6
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: A small tornado moved across the northern part of town, causing roof damage to homes and garages.
NWS Tornado Report Location: 1.72 NW Somers, IA
EF0category
Sep 30, 2007 5:27 PM CST-6
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: Small rope tornado touched moved into Calhoun County from Sac County. It lifted west of Jolley.
NWS Tornado Report Location: 6.5 WSW Jolley, IA
EF0category
Jul 3, 2007 8:05 PM CST-6
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: Tornado touched down briefly in a field northwest of Jolley.
NWS Tornado Report Location: 2.15 WSW Knoke, IA
F0category
Aug 10, 2006 3:57 AM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: Brief touchdown of landspout tornado.
NWS Tornado Report Location: 5 NE Lake City, IA
F1category
May 18, 2005 5:58 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: Tornado touched down on a farm north of Farnhamville, damaging several buildings on the farm. The tornado moved from Calhoun County into Webster County.
NWS Tornado Report Location: 2 N Farnhamville, IA
F0category
Jul 5, 2004 2:50 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: Brief tornado touchdown in open fields north of Rockwell City
NWS Tornado Report Location: 3 N Rockwell City, IA
F0category
Jun 11, 2004 5:35 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: Several brief touchdowns in open fields near Somers.
NWS Tornado Report Location: 3 E Rockwell City, IA
F0category
Jun 23, 1998 9:15 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 5 NE Lytton, IA
F0category
May 30, 1998 11:40 AM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Farnhamville, IA
F0category
May 28, 1998 7:56 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 4 E Lake City, IA
F2category
Jun 19, 1990 5:36 AM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
F1category
Apr 27, 1989 8:09 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
F0category
Aug 17, 1987 3:54 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
F2category
Jul 28, 1986 7:47 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
F2category
Apr 26, 1984 4:58 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
F1category
Jun 23, 1981 10:40 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
F4category
Jun 28, 1979 6:25 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
UNKcategory
Jun 25, 1978 4:30 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
UNKcategory
May 18, 1977 2:28 PM CST
Tornado report for Calhoun County, IA
Calhoun County · 4,083 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
Showing 15 of 30
Tornado Damage Risk for Your Home+
After a tornado, the National Weather Service assigns an EF rating from EF0 to EF5 based on surveyed damage. The rating estimates wind speed from what the tornado damaged, so actual damage can vary by construction quality, roof age, garage doors, windows, trees, debris, and how close the home was to the tornado path.
EF0
65–85 mph
Light
Can peel shingles, damage gutters or siding, break tree limbs, and toss loose outdoor items.
EF1
86–110 mph
Moderate
Can strip roof covering, damage exterior doors, break windows, snap trees, and cause heavier siding or gutter damage.
EF2
111–135 mph
Serious
Can tear off large sections of roofing, break or uproot trees, destroy weaker structures, and cause major exterior damage.
EF3–EF5
136+ mph
Severe
Can remove roofs and walls, destroy large portions of homes, toss vehicles, and cause severe to total destruction near the path.
Source: NOAA / National Weather Service. EF ratings are assigned after a post-storm damage survey and are based on observed damage, not a direct measurement at every home.
NWS Hail, Wind and Tornado Reports in Calhoun County on the Interactive Map
Report type
Hail
Wind
Tornado
Get a free hail report for your address
Address-level hail history. 100% free. No phone or email required.
This snapshot is for local area context only and describes the selected state, county, city, or ZIP area — not a specific home or property. For ZIP-level estimated hail impact, use Free Hail Maps to generate a hail report with key impact details for that ZIP.
Top ZIP Codes with NWS Storm Reports in Calhoun County
Not sure if hail may have affected your home in Calhoun County? Ask a local pro for a Remote Hail Inspection. They can review hail activity for your property and help you decide whether an in-person roof or exterior inspection makes sense.
How many hail, wind, and tornado reports does Calhoun County have on record?
Our records show 127 hail, 133 wind, and 33 tornado reports in Calhoun County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on July 8, 2026.
What is the largest hail ever reported in Calhoun County?
The largest hail size in these storm-report records in Calhoun County is 4.00″. It was reported near .23 NE Rockwell City, IA on June 30, 2014.
A storm report showed up near my home in Calhoun County — does that mean my roof is damaged?
Not necessarily. A storm report only means hail, wind, or a tornado was observed nearby; it does not confirm damage at any specific address, and conditions change from block to block. Check an address-level hail report first, and if it looks significant, find a local pro that serves Calhoun County and ask about a Remote Hail Inspection before anyone climbs on the roof.
I am buying a home in Calhoun County — why should I look at its storm history?
Recent hail or wind can leave a roof or exterior with damage that is easy to miss during a walkthrough, and a recent roof replacement is sometimes an insurance job after a storm. Reviewing the storm history for a Calhoun County address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.
I am selling a home in Calhoun County — how does this help me?
Knowing the storm history for your address lets you answer buyer questions with confidence, document repairs you have already made, and decide whether a pre-listing roof check is worthwhile. A clear hail history removes a common sticking point during negotiations.
How do I check hail history for a specific Calhoun County address?
Use the address search to pull a free address-level hail report for any property in Calhoun County — no phone number or email required. It shows recent hail activity for that address so you know whether a closer roof or exterior review makes sense.
Where does this storm report data come from, and what are its limits?
Storm reports on this page are public reports from storm events across Calhoun County, IA, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in Calhoun County, but they do not confirm damage at any specific property. Report locations, sizes, and times may be approximate and can vary from what an individual home experienced. For property-specific hail history, use an address-level hail report or contact a participating local professional for a remote hail inspection. Pros inclusion is not an endorsement, and contacting a professional does not confirm damage at any property.
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