POLK

224873 · 41.600, -93.400

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The record

Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.

Event typeevent_type	Lightning
NOAA NCEI event IDncei_event_id	224,873
Episode IDepisode_id	38,718
Begin UTCbegin_utc	2010-06-12T15:30:00+00:00
End UTCend_utc	2010-06-12T15:30:00+00:00
Statestate	IOWA
County/zone typecz_type	C
County/zone namecz_name	POLK
Latitudelat	41.600
Longitudelon	-93.400
End latitudeend_lat	41.600
End longitudeend_lon	-93.400
Deaths directdeaths_direct	0
Deaths indirectdeaths_indirect	0
Injuries directinjuries_direct	0
Injuries indirectinjuries_indirect	0
Damage propertydamage_property	250.00K
Damage cropsdamage_crops	0.00K
Weather forecast office sourcewfo_source	Broadcast Media
Episode narrativeepisode_narrative	A very humid and unstable airmass was in place over Iowa during the evening of the 11th into the morning of the 12th. A strong push if moisture pushed precipitable water values to over 2 inches over southern Iowa by evening. Surface dew point temperatures rose to the mid 70s to around 80. The airmass was quite unstable with 3000 to 4000 J/kg of CAPE available and a lifted index around -8 C. There was little shear present however and steering winds were quite light. Thunderstorms formed initially along an east-northeast to west-northwest outflow boundary left by convection the previous morning. This boundary was reinforced as a weak cold front and dropped southeast into Iowa. Thunderstorms developed along this boundary and moved very slowly, dumping heavy rainfall of 1 to 3 inches on top of already saturated ground. Spotty heavier reports were received with unofficial totals of nearly 4 inches southeast of Des Moines in the Knoxville area. The heavy rainfall resulted in flash flooding. Since the rain was unable to percolate into the soil, ditches filled with water and numerous county roads were flooded. Some state highways were flooded as well with water of 1 to 2 feet in depth flowing over the road. Highway 92 in Mahaska County, and Highway 415 in Polk County were flooded for example. There was little severe weather associated with this thunderstorm activity. A 58 MPH wind gust was reported by an RWIS site near Fort Dodge however. Lightning struck a business in Runnells. Bakeris Roofing was struck and set on fire. The fire took 8 fire departments two hours to put out and the business was destroyed.
Yearyear	2,010

Provenance

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Storage: spine