Pilot Index / Iowa / Sep 21, 2016

Preliminary

Storms in Iowa on Sep 21, 2016

28 published severe reports across Iowa on Sep 21, 2016.

Updated Oct 28, 2026.

Coverage is partial. 473 source scopes are pending. Pending data is not a zero report count.

Hail reports: 7. Wind reports: 17. Tornado reports: 4.

The table and map show 28 of 28 reports.

TimeWhatSize or SpeedWhereDetails
Sep 21, 2016, 3:29 PM CDTHail1.00 in3 E ROCKWELL
Record
  • Sep 21, 2016, 3:29 PM CDT. Hail, 1.00 in, 3 E ROCKWELL. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:332dc3e6c61ab15407340909f54c8f5f726c873494b1126852f37429a75c1df1.
Sep 21, 2016, 3:32 PM CDTHail1.00 inCARTERSVILLE
Record
  • Sep 21, 2016, 3:32 PM CDT. Hail, 1.00 in, CARTERSVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659341.
Sep 21, 2016, 3:55 PM CDTWind60 mphHANFORD
Record
  • Sep 21, 2016, 3:55 PM CDT. Wind, 60 mph, HANFORD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659342.
Sep 21, 2016, 4:13 PM CDTWind66 mph2 S NORA SPRINGS
Record
  • Sep 21, 2016, 4:13 PM CDT. Wind, 66 mph, 2 S NORA SPRINGS. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:4592b845641e9d3c4cfd1a9bf829981073ad4a06fcb5b2287b926eba0ce994e0.
Sep 21, 2016, 4:13 PM CDTWind66 mphNORA SPGS
Record
  • Sep 21, 2016, 4:13 PM CDT. Wind, 66 mph, NORA SPGS. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:658890.
Sep 21, 2016, 5:06 PM CDTWind60 mphNORA SPGS
Record
  • Sep 21, 2016, 5:06 PM CDT. Wind, 60 mph, NORA SPGS. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659097.
Sep 21, 2016, 5:06 PM CDTHail1.50 inROCKFORD
Record
  • Sep 21, 2016, 5:06 PM CDT. Hail, 1.50 in, ROCKFORD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659098.
Sep 21, 2016, 5:10 PM CDTWind60 mphROCKFORD
Record
  • Sep 21, 2016, 5:10 PM CDT. Wind, 60 mph, ROCKFORD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659096.
Sep 21, 2016, 5:33 PM CDTTornado3 SW ROCKFORD
Record
  • Sep 21, 2016, 5:33 PM CDT. Tornado, 3 SW ROCKFORD. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:382247df6fc9bca6acfc076eb5d2f0b2c5ac0d82c5c88bdfcc80196b7da7b986.
Sep 21, 2016, 5:33 PM CDTWind70 mph3 W MARBLE ROCK
Record
  • Sep 21, 2016, 5:33 PM CDT. Wind, 70 mph, 3 W MARBLE ROCK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:4458a9bd624905b37c39199c8713c6699b74d6f0bfe40e19fb16341534da7f6e.
Sep 21, 2016, 5:33 PM CDTWind70 mphAUREOLA
Record
  • Sep 21, 2016, 5:33 PM CDT. Wind, 70 mph, AUREOLA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659099.
Sep 21, 2016, 5:50 PM CDTWind60 mphMASON CITY
Record
  • Sep 21, 2016, 5:50 PM CDT. Wind, 60 mph, MASON CITY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659343.
Sep 21, 2016, 5:50 PM CDTHail1.25 inROCK FALLS
Record
  • Sep 21, 2016, 5:50 PM CDT. Hail, 1.25 in, ROCK FALLS. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659344.
Sep 21, 2016, 6:00 PM CDTHail1.25 in2 N ROCK FALLS
Record
  • Sep 21, 2016, 6:00 PM CDT. Hail, 1.25 in, 2 N ROCK FALLS. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:973732f708f161c7f0351ff93470356454c3daddabc52575b7c88936983fab82.
Sep 21, 2016, 6:17 PM CDTWind64 mphPORTLAND
Record
  • Sep 21, 2016, 6:17 PM CDT. Wind, 64 mph, PORTLAND. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659345.
Sep 21, 2016, 6:20 PM CDTWind60 mphMARBLE ROCK
Record
  • Sep 21, 2016, 6:20 PM CDT. Wind, 60 mph, MARBLE ROCK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659103.
Sep 21, 2016, 6:24 PM CDTTornado4 W GREENE
Record
  • Sep 21, 2016, 6:24 PM CDT. Tornado, 4 W GREENE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:e004b836e2fb870fbf2fe0abd2f450caab244f3d5b36e321c12440d3b56ba290.
Sep 21, 2016, 6:32 PM CDTTornadoPOWERSVILLE
Record
  • Sep 21, 2016, 6:32 PM CDT. Tornado, POWERSVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659100.
Sep 21, 2016, 6:34 PM CDTTornado2 W NASHUA
Record
  • Sep 21, 2016, 6:34 PM CDT. Tornado, 2 W NASHUA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:5494e63780baac0b715f41aacfdc4593f23bc72238607c2b927aeecfd1de73d4.
Sep 21, 2016, 6:38 PM CDTWind64 mphGREENE
Record
  • Sep 21, 2016, 6:38 PM CDT. Wind, 64 mph, GREENE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659347.
Sep 21, 2016, 6:40 PM CDTWind64 mphGREENE
Record
  • Sep 21, 2016, 6:40 PM CDT. Wind, 64 mph, GREENE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659348.
Sep 21, 2016, 6:45 PM CDTWind64 mphGREENE
Record
  • Sep 21, 2016, 6:45 PM CDT. Wind, 64 mph, GREENE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659349.
Sep 21, 2016, 7:11 PM CDTHail1.00 inGREENE
Record
  • Sep 21, 2016, 7:11 PM CDT. Hail, 1.00 in, GREENE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659352.
Sep 21, 2016, 7:44 PM CDTWind60 mph1 W MARBLE ROCK
Record
  • Sep 21, 2016, 7:44 PM CDT. Wind, 60 mph, 1 W MARBLE ROCK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:69734c473717f3e808dc59d3cbe6b5d73a732f8705bf340dbacdd3bd05e449fc.
Sep 21, 2016, 7:44 PM CDTWind70 mph1 ENE MARBLE ROCK
Record
  • Sep 21, 2016, 7:44 PM CDT. Wind, 70 mph, 1 ENE MARBLE ROCK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c76b3ca3d224c9ea1406e09ad2086055380bd778d4987196bdeaa651048f0855.
Sep 21, 2016, 7:44 PM CDTWind60 mphAUREOLA
Record
  • Sep 21, 2016, 7:44 PM CDT. Wind, 60 mph, AUREOLA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659105.
Sep 21, 2016, 7:44 PM CDTWind70 mphMARBLE ROCK
Record
  • Sep 21, 2016, 7:44 PM CDT. Wind, 70 mph, MARBLE ROCK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659106.
Sep 21, 2016, 7:49 PM CDTHail1.00 inGREENE
Record
  • Sep 21, 2016, 7:49 PM CDT. Hail, 1.00 in, GREENE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:659353.
How We Count

This page uses published ground reports from 2016-01-01 through 2026-10-29. Coverage is partial. 473 source scopes are pending. Pending data is not a zero report count.

Hail counts at 1.00 in or larger. Wind counts at 58 mph or stronger. State days also include tornado reports.

Reports use the local civil date and clock. City pages use the city clock. State pages use each report location clock.

Exact repeated observations are counted once. Nearby reports with different times, coordinates or sizes remain separate observations.

NCEI rows are verified against NCEI Storm Events. SPC and NWS local reports are preliminary.

Radar signatures and warning polygons are not ground reports and are not in these counts.

A missing report does not show that no storm occurred. These pages show city or state exposure, not damage at an address.

This free page covers the state. It does not check a street address.

Limits

This page is not a certified record.

This page shows weather exposure, not damage or cause.

This page is not an expert opinion and it is not a meteorologist review.

Verify these rows with official NOAA and NWS records.

VectorWX is not affiliated with or endorsed by NOAA or NWS.

Radar-estimated hail size comes from MRMS MESH or NCEI nx3hail. It is an estimate of hail aloft. It is not a measurement of hail on a roof.