April 1977 storm reports: hail, wind and tornadoes
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In April 1977, 76 hail, 55 damaging-wind and 88 tornado reports were logged on 24 storm days across 32 states. The largest hail reported was 2.50″ (tennis ball size) in Waseca County, MN on April 14, 1977. The most hail reports came on April 14, 1977 (11). Tornadoes killed 26.
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
← March 1977 All 1977 storm days May 1977 →
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Biggest storm days of April 1977
| Day | Hail | Wind | Tornado | Largest hail | States |
|---|---|---|---|---|---|
| Apr 4, 1977 | 4 | 16 | 19 | 1.75″ | 10 |
| Apr 2, 1977 | 5 | 12 | 15 | 1.75″ | 11 |
| Apr 19, 1977 | 3 | 0 | 18 | 1.75″ | 7 |
| Apr 20, 1977 | 10 | 4 | 5 | 1.75″ | 5 |
| Apr 14, 1977 | 11 | 2 | 4 | 2.50″ | 2 |
| Apr 18, 1977 | 3 | 0 | 11 | 1.75″ | 4 |
| Apr 23, 1977 | 11 | 0 | 1 | 1.75″ | 4 |
| Apr 3, 1977 | 9 | 0 | 0 | 1.75″ | 1 |
| Apr 5, 1977 | 0 | 5 | 2 | – | 4 |
| Apr 12, 1977 | 4 | 2 | 1 | 1.75″ | 3 |
Largest hail reported in April 1977
| Day | Size | Location |
|---|---|---|
| Apr 14, 1977 | 2.50″ (tennis ball) | Waseca County, MN |
| Apr 14, 1977 | 2.00″ (hen egg) | Hays County, TX |
| Apr 14, 1977 | 2.00″ (hen egg) | Hays County, TX |
| Apr 15, 1977 | 2.00″ (hen egg) | Kerr County, TX |
| Apr 1, 1977 | 1.75″ (golf ball) | Wagoner County, OK |
| Apr 2, 1977 | 1.75″ (golf ball) | Van Buren County, MI |
| Apr 2, 1977 | 1.75″ (golf ball) | Jefferson County, WI |
| Apr 3, 1977 | 1.75″ (golf ball) | Uvalde County, TX |
| Apr 3, 1977 | 1.75″ (golf ball) | Wilson County, TX |
| Apr 3, 1977 | 1.75″ (golf ball) | Upshur County, TX |
Storm reports by state, April 1977
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| Texas | 33 | 9 | 34 | 2.00″ |
| Alabama | 4 | 7 | 7 | 1.75″ |
| Michigan | 3 | 4 | 6 | 1.75″ |
| Georgia | 2 | 5 | 5 | 1.75″ |
| Mississippi | 3 | 2 | 5 | 1.75″ |
| Nebraska | 3 | 1 | 4 | 1.75″ |
| Colorado | 3 | 2 | 2 | 1.75″ |
| Oklahoma | 3 | 0 | 4 | 1.75″ |
| Pennsylvania | 2 | 3 | 2 | 1.00″ |
| Kentucky | 0 | 4 | 2 | – |
| Tennessee | 6 | 0 | 0 | 1.75″ |
| New Mexico | 3 | 0 | 2 | 1.75″ |
| Wisconsin | 3 | 1 | 1 | 1.75″ |
| Louisiana | 0 | 1 | 3 | – |
| Ohio | 0 | 0 | 4 | – |
| Arkansas | 1 | 1 | 1 | 1.75″ |
| Iowa | 0 | 3 | 0 | – |
| Virginia | 1 | 1 | 1 | 1.75″ |
| Delaware | 1 | 1 | 0 | 1.75″ |
| Florida | 0 | 2 | 0 | – |
| Illinois | 0 | 2 | 0 | – |
| Indiana | 0 | 1 | 1 | – |
| Missouri | 1 | 0 | 1 | 1.75″ |
| North Carolina | 0 | 0 | 2 | – |
| Oregon | 1 | 1 | 0 | 0.75″ |
| West Virginia | 0 | 2 | 0 | – |
| Kansas | 0 | 1 | 0 | – |
| Maryland | 0 | 1 | 0 | – |
| Minnesota | 1 | 0 | 0 | 2.50″ |
| New York | 0 | 0 | 1 | – |
| South Carolina | 1 | 0 | 0 | 1.00″ |
| South Dakota | 1 | 0 | 0 | 1.50″ |
Every storm day in April 1977
Apr 1 Apr 2 Apr 3 Apr 4 Apr 5 Apr 10 Apr 11 Apr 12 Apr 13 Apr 14 Apr 15 Apr 16 Apr 17 Apr 18 Apr 19 Apr 20 Apr 21 Apr 22 Apr 23 Apr 24 Apr 26 Apr 28 Apr 29 Apr 30
A storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Read more about NOAA storm reports.