May 1999 storm reports: hail, wind and tornadoes
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In May 1999, 2,935 hail, 1,658 damaging-wind and 311 tornado reports were logged on 31 storm days across 41 states. The largest hail reported was 4.75″ (softball size) in Meade County, KS on May 31, 1999. The most hail reports came on May 16, 1999 (316). Tornadoes killed 53.
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
← April 1999 All 1999 storm days June 1999 →
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Biggest storm days of May 1999
| Day | Hail | Wind | Tornado | Largest hail | States |
|---|---|---|---|---|---|
| May 16, 1999 | 316 | 177 | 25 | 4.50″ | 14 |
| May 17, 1999 | 184 | 309 | 7 | 1.75″ | 14 |
| May 22, 1999 | 248 | 125 | 4 | 4.50″ | 19 |
| May 5, 1999 | 144 | 205 | 18 | 3.50″ | 17 |
| May 3, 1999 | 144 | 57 | 75 | 4.50″ | 12 |
| May 4, 1999 | 156 | 73 | 39 | 3.00″ | 13 |
| May 31, 1999 | 168 | 72 | 23 | 4.75″ | 10 |
| May 9, 1999 | 148 | 65 | 13 | 2.75″ | 13 |
| May 13, 1999 | 178 | 37 | 0 | 2.50″ | 12 |
| May 25, 1999 | 157 | 21 | 17 | 4.50″ | 5 |
Largest hail reported in May 1999
| Day | Size | Location |
|---|---|---|
| May 31, 1999 | 4.75″ (softball) | Meade County, KS |
| May 3, 1999 | 4.50″ (softball) | Jackson County, OK |
| May 3, 1999 | 4.50″ (softball) | Grady County, OK |
| May 3, 1999 | 4.50″ (softball) | Holt County, NE |
| May 3, 1999 | 4.50″ (softball) | Kingfisher County, OK |
| May 16, 1999 | 4.50″ (softball) | Greeley County, KS |
| May 22, 1999 | 4.50″ (softball) | Clay County, NE |
| May 25, 1999 | 4.50″ (softball) | Jackson County, OK |
| May 27, 1999 | 4.50″ (softball) | Hood County, TX |
| May 31, 1999 | 4.50″ (softball) | Meade County, KS |
Storm reports by state, May 1999
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| Texas | 659 | 285 | 62 | 4.50″ |
| Oklahoma | 313 | 248 | 88 | 4.50″ |
| Kansas | 418 | 113 | 32 | 4.75″ |
| Florida | 174 | 59 | 11 | 2.00″ |
| Nebraska | 184 | 29 | 24 | 4.50″ |
| Arkansas | 99 | 122 | 7 | 1.75″ |
| Georgia | 164 | 43 | 3 | 2.50″ |
| Tennessee | 59 | 125 | 6 | 2.75″ |
| Iowa | 98 | 31 | 13 | 2.75″ |
| Indiana | 47 | 72 | 6 | 1.75″ |
| Colorado | 105 | 7 | 9 | 3.75″ |
| Alabama | 69 | 28 | 5 | 2.50″ |
| Illinois | 38 | 54 | 5 | 3.50″ |
| Mississippi | 48 | 43 | 5 | 1.75″ |
| Louisiana | 36 | 50 | 3 | 1.75″ |
| Missouri | 45 | 40 | 2 | 1.75″ |
| New Mexico | 73 | 10 | 4 | 3.00″ |
| South Dakota | 60 | 6 | 11 | 1.75″ |
| South Carolina | 32 | 34 | 3 | 1.75″ |
| Michigan | 11 | 52 | 4 | 1.75″ |
| North Carolina | 42 | 23 | 1 | 2.00″ |
| Kentucky | 11 | 38 | 1 | 1.00″ |
| Ohio | 9 | 41 | 0 | 1.75″ |
| Virginia | 31 | 18 | 0 | 1.75″ |
| Pennsylvania | 6 | 31 | 0 | 0.75″ |
| Wisconsin | 16 | 17 | 1 | 1.75″ |
| Wyoming | 23 | 4 | 2 | 2.00″ |
| Minnesota | 15 | 9 | 0 | 1.75″ |
| North Dakota | 22 | 0 | 0 | 1.75″ |
| New Jersey | 9 | 9 | 0 | 2.00″ |
| Maryland | 4 | 7 | 0 | 1.75″ |
| Montana | 9 | 0 | 1 | 1.75″ |
| West Virginia | 2 | 4 | 0 | 1.00″ |
| Delaware | 1 | 2 | 0 | 1.75″ |
| New York | 1 | 1 | 0 | 0.75″ |
| Utah | 1 | 0 | 1 | 0.75″ |
| California | 1 | 0 | 0 | 1.00″ |
| District of Columbia | 0 | 1 | 0 | – |
| Massachusetts | 0 | 1 | 0 | – |
| Nevada | 0 | 1 | 0 | – |
| Washington | 0 | 0 | 1 | – |
Every storm day in May 1999
May 1 May 2 May 3 May 4 May 5 May 6 May 7 May 8 May 9 May 10 May 11 May 12 May 13 May 14 May 15 May 16 May 17 May 18 May 19 May 20 May 21 May 22 May 23 May 24 May 25 May 26 May 27 May 28 May 29 May 30 May 31
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.