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 | 344,971 |
| Episode IDepisode_id | 57,347 |
| Begin UTCbegin_utc | 2011-10-07T12:00:00+00:00 |
| End UTCend_utc | 2011-10-08T12:00:00+00:00 |
| Statestate | NEBRASKA |
| County/zone typecz_type | C |
| County/zone namecz_name | BUFFALO |
| Latitudelat | 40.709 |
| Longitudelon | -99.405 |
| End latitudeend_lat | 40.709 |
| End longitudeend_lon | -99.405 |
| 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 | Public |
| Episode narrativeepisode_narrative | Ending a stretch of 2.5 weeks of bone-dry weather, and also ending a streak of nearly six weeks with no severe thunderstorms in the 24-county area, this Friday afternoon and evening featured a concentrated corridor of strong to severe storms and heavy rainfall mainly across western portions of South Central Nebraska. These storms forced delays or cancellations to a number of high school football games during what turned into a fairly prolonged event, with wind and hail-producing storms first flaring up around 230 PM CDT, and finally diminishing in intensity around 1 AM. The majority of severe storms and heavy rainfall regenerated for several hours within a narrow southwest-northeast oriented corridor only about 30 miles wide at most, primarily impacting counties such as Furnas, Harlan, Phelps, Buffalo, Howard, Hall and northwest Adams. The storm mode was a mixed bag of quasi-discrete, fast moving supercells and small multicell bowing segments. Storm reports included several instances of damaging wind gusts and hail up to the size of golf balls. A few of the more notable reports were from Atlanta in Phelps County, including golf ball size hail and significant wind damage to the roof of a grain storage building. At the Holdrege airport, two separate storms produced measured gusts to around 60 MPH, several hours apart from one another. Although a few storms exhibited low-level rotation, no tornadoes occurred. ||Heavy rainfall-wise, parts of primarily eastern Furnas, northwest Harlan, Phelps, Buffalo and southeast Sherman Counties measured 3-6 inches of rain during this event, including 5.94 inches northwest of Oxford and 5.33 inches in Loomis. Kearney Regional Airport established a record for the date with 2.29 inches. Although the heaviest rain associated with this low pressure system fell during these storms on the afternoon and evening of the 7th, additional rain throughout the weekend boosted 3-day totals into the 6-7 inch range for some areas, highlighted by 7.13 inches at Loomis. Fortunately, due to the very dry conditions leading up to this event, widespread flooding impacts were held to a minimum. ||On the synoptic scale, the primary trigger for severe weather was the approach of a highly amplified mid-level trough across the western United States, anchored by a closed low swinging through the Four Corners region. Downstream from this low, a corridor of strong, nearly unidirectional south-southwest winds was in place in the mid and upper levels. At the surface, storm development focused along a quasi-stationary front, which at mid-afternoon stretched from eastern South Dakota to southwest Kansas. Given that winds aloft were largely parallel to this southwest-northeast oriented surface front, convection was able to focus within the aforementioned narrow corridor, with individual storms within the corridor racing northeast. Mesoscale parameters at early evening revealed only modest instability, with mixed-layer CAPE values only around 1000 J/kg, but in the presence of very strong deep-layer vertical wind shear of 50-60 knots. Although low-level shear ramped up as the evening progressed, with 0-1 kilometer shear values increasing to 30-40 knots, the combination of increasing low level convective inhibition and multiple storm mergers likely helped mitigate a potential tornadic threat. |
| Event narrativeevent_narrative | Total rainfall over the past 24 hours of 3.00 inches was reported by a Nebraska Rainfall Assessment and Information Network observer. |
| Yearyear | 2,011 |
Provenance
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Storage: spine