The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| Event typeevent_type | Heavy Rain |
|---|---|
| NOAA NCEI event IDncei_event_id | 766,308 |
| Episode IDepisode_id | 126,981 |
| Begin UTCbegin_utc | 2018-07-05T03:30:00+00:00 |
| End UTCend_utc | 2018-07-05T11:00:00+00:00 |
| Statestate | NEBRASKA |
| County/zone typecz_type | C |
| County/zone namecz_name | DAWSON |
| Latitudelat | 40.920 |
| Longitudelon | -99.450 |
| End latitudeend_lat | 40.920 |
| End longitudeend_lon | -99.450 |
| Deaths directdeaths_direct | 0 |
| Deaths indirectdeaths_indirect | 0 |
| Injuries directinjuries_direct | 0 |
| Injuries indirectinjuries_indirect | 0 |
| Damage propertydamage_property | 0.00K |
| Damage cropsdamage_crops | 0.00K |
| Weather forecast office sourcewfo_source | CoCoRaHS |
| Episode narrativeepisode_narrative | Excessive rainfall occurred over eastern Dawson and western Buffalo counties on this Wednesday night and very early Thursday morning, with flash flooding south of Sumner. During the evening hours, numerous thunderstorms developed from near McCook to North Platte to Broken Bow to Albion. Around 9 PM CST, a separate, small cluster of thunderstorms formed over eastern Dawson county. Repeated cell development kept heavy downpours over the area until 11 PM CST. Meanwhile, the tail end of the storms to the west was progressing eastward. Between 1030 and 11 PM, more thunderstorms developed within advancing tail and formed a line from central Dawson county south into Gosper county. This line then moved across the eastern part of Dawson county and into western Buffalo county between 1130 PM and 1 AM CST. More thunderstorms formed and dropped more heavy rain over these areas between 200 and 400 AM CST. Rain gauge measurements were scarce in this rural area. On the northern gradient, where radar indicated the greatest amounts fell, a CoCoRaHS observer measured 4.30 in. This excessive rainfall resulted in a flash flood roughly 7 miles north-northwest of Overton causing significant damage to a home and totaling 3 vehicles on the property. Minor flooding also occurred on Elm Creek, and low spots were flooded along several country roads in eastern Dawson county.||During the day Wednesday, low pressure was over southern Manitoba with a slow-moving cold front extending across the Dakota's into the Nebraska Panhandle. By evening, this front had become stationary from Goodland, Kansas to North Platte to O'Neill. In the upper-levels, subtropical high pressure encompassed most of the United States. A low was off the Pacific Northwest coast, and a shortwave trough was crossing the Northern Plains and southern Canada. By daybreak, the southern tip of this trough extended into Nebraska, but winds aloft were very weak. Just before thunderstorms moved into the area, temperatures had fallen into the middle 70s and dewpoints were in the middle 60s. Mid-level lapse rates were near 7 C/km, with MUCAPE around 2000 J/kg. Deep layer shear was 30-35 kt. The low-level jet was weak (20-30 kt) but present with its northern terminus at the frontal zone. |
| Event narrativeevent_narrative | A storm total rainfall amount of 4.30 inches was recorded by a mesonet site located 2 miles west of Miller. |
| Yearyear | 2,018 |
Provenance
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