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 | 178,779 |
| Episode IDepisode_id | 29,036 |
| Begin UTCbegin_utc | 2009-07-10T10:00:00+00:00 |
| End UTCend_utc | 2009-07-10T16:05:00+00:00 |
| Statestate | IOWA |
| County/zone typecz_type | C |
| County/zone namecz_name | POWESHIEK |
| Latitudelat | 41.600 |
| Longitudelon | -92.550 |
| End latitudeend_lat | 41.600 |
| End longitudeend_lon | -92.550 |
| 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 | Trained Spotter |
| Episode narrativeepisode_narrative | Thunderstorms formed over northwest Iowa near an old outflow boundary left behind from the morning convection. Farther south, the airmass was capped with 700 mb temperatures warming to +15 C on the Omaha, NE sounding at 0000 UTC. The atmosphere was slow to recover after the morning convection, but did destabilize to where there was 1000 to 2000 J/kg of CAPE and the lifted indices falling to -4 to -7 C. Downdraft CAPE was not all that impressive, in the 500 to 800 J/kg range. The effective shear in the area was 30 to 45 kts with CAPE in the -10 to -30 C. layer of the atmosphere around 300 J/kg. Thunderstorms formed over southeast South Dakota and moved into northwest Iowa during the evening. The storms were quite strong and produced very large hail to the west of the DMX CWA. They weakened as they moved into a less favorable environment in the DMX CWA. The freezing level was quite high at nearly 15,000 feet, making it difficult for large hail production from the weakening storms. Several locations in Emmet County reported dime to nickel size hail with the storms. In Kossuth County, the storms intensified some and produced quarter size hail. Intense rainfall occurred with some of the storms. In Estherville for example, about 2.5 inches of rain fell in about one and one half hours. Deep moisture was in place in the atmosphere with 1.7 inches of precipitable water available. Thunderstorms continued to develop across northern Iowa into the early morning hours. The hail event transitioned into more of a wind event after midnight. Winds of 60 MPH plus hit the Waterloo area resulting in considerable tree limb damage. A semi-tractor trailer was overturned just northwest of Waterloo by the high winds. Power outages were widespread across Black Hawk County. Shortly after the event it was reported that nearly 20% of Black Hawk County was without power due to the wind damage. Power poles were on fire in Waterloo. Significant damage occurred in the Cedar Falls area as well. At least 350 trees were damaged in the city of Cedar Falls. One hundred of those were on the University of Northern Iowa campus. High winds near 100 MPH toppled a radio station tower. Damage around the city was extensive with numerous trees toppled, falling onto houses and cars. High winds damaged a garage in Cedar Falls. In addition, high winds caused considerable damage around town with 9000 homes without power at one point in the Waterloo/Cedar Falls area. Media reports indicated that the damage totals in the Waterloo/Ceder Falls areas exceeded $5 million. Fortunately there were no injuries reported. In addition to the property damage, wind speeds were high enough to cause extensive crop damage at several locations. By mid August, a Federal Disaster Declaration was made for Black Hawk County due to the extensive wind damage in the county. |
| Event narrativeevent_narrative | Rainfall of 2.30 inches from late last night into the morning. |
| Yearyear | 2,009 |
Provenance
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Storage: spine