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 | 434,986 |
| Episode IDepisode_id | 72,120 |
| Begin UTCbegin_utc | 2013-04-18T02:00:00+00:00 |
| End UTCend_utc | 2013-04-18T02:00:00+00:00 |
| Statestate | IOWA |
| County/zone typecz_type | C |
| County/zone namecz_name | BOONE |
| Latitudelat | 41.880 |
| Longitudelon | -93.820 |
| End latitudeend_lat | 41.880 |
| End longitudeend_lon | -93.820 |
| 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 | A strong storm system developed over the southern Rockies during the early morning hours of the 17th. A strong frontal boundary extended from the low, northeast across Iowa. A 50 kt low level jet developed during the predawn hours. The jet transported significant moisture over the top of the frontal boundary. Precipitable water values increased to between 1.1 and 1.3 inches over southern Iowa by sunrise. The atmosphere was strongly sheared with 40 to 50 kts of effective shear present. The freezing level was quite low, in the 10,000 to 11,000 foot range. CAPE values increased through the night with MUCAPE in the 1000 to 2000 J/lg range. CAPE in the -10 to -30 C layer of the atmosphere was between 300 and 500 J/kg. Downdraft CAPE was less than 500 J/kg. Thunderstorms developed rapidly during the predawn hours around the frontal boundary. Many of the storms produced pea size hail with enough hail to cover the ground. Several storms produced nickel to quarter size hail around sunrise over south central Iowa. The severe weather decreased during the day as the event turned into a heavy rain event, though isolated storms became severe. One storm produced high winds, causing some roof damage, and quarter size hail in Ringgold County late in the afternoon. High winds also occurred during the evening in the Ottumwa area. Flash flooding occurred in several counties, including Ringgold, Monroe, and Wapello Counties. Heavy rainfall of 3 to 6 inches fell over parts of the southeast third of the Des Moines CWA. There was one unofficial report of 7 inches north of Kellerton in Ringgold County, with a 7.3 inch amount in Appanoose County. The heavy rainfall lead to flooding in many areas. Several southeastern Iowa counties received a State Declaration by Governor Branstad. Mahaska was the only one in the Des Moines CWA. |
| Event narrativeevent_narrative | Rainfall total 1.94 inches. |
| Yearyear | 2,013 |
Provenance
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Storage: spine