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The Dexes / Heavy Rain / 694852

Eventdex · Heavy Rain

MARTINSVILLE (C)

694852 · 36.680, -79.870

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The record

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Event typeevent_typeHeavy Rain
NOAA NCEI event IDncei_event_id694,852
Episode IDepisode_id114,465
Begin UTCbegin_utc2017-04-22T12:00:00+00:00
End UTCend_utc2017-04-25T12:00:00+00:00
StatestateVIRGINIA
County/zone typecz_typeC
County/zone namecz_nameMARTINSVILLE (C)
Latitudelat36.680
Longitudelon-79.870
End latitudeend_lat36.680
End longitudeend_lon-79.870
Deaths directdeaths_direct0
Deaths indirectdeaths_indirect0
Injuries directinjuries_direct0
Injuries indirectinjuries_indirect0
Damage propertydamage_property7.00K
Damage cropsdamage_crops0.00K
Weather forecast office sourcewfo_source911 Call Center
Episode narrativeepisode_narrativeSeveral waves of low pressure moved across the area as an upper level low closed off over the southeastern U.S. Signiifcant rainfall began early on April 22nd over far southwest Virginia and the rainfall persisted on and off over the next four days with mainly moderate rates (0.10��� to 0.25��� per hour) as the upper low drifted very slowly eastward from the lower Mississippi Valley toward the southeastern states. 24-hour totals ending 12z (0700 EST) on the 23rd ranged from less than 0.50 inches over the James River basin up to 1.25��� to 1.75��� across parts of the Roanoke, New and Dan basins. The heaviest rains April 23-24 fell across the western and central river basins with amounts ranging from 2 to 5 inches. Another 1 to 3 inches with isolated higher amounts fell mainly across the foothills and piedmont in the next 24-hours. Storm total rainfall for the four-day period ending at 12z (0700 EST) on the 25th ranged from 3 to 9+ inches with highest amounts in parts of the Blue Ridge mountains and foothills in Patrick, Carroll and Henry counties. Busted Rock #2 IFLOWS (BUEV2) led the way with 9.53 over the 4-day period. Widespread small stream flooding resulted with numerous larger rivers that approached or exceeded flood stage including portions of the Clinch, New, Roanoke and Dan rivers. Return frequency intervals for the flooding were generally in the 5-year to 10-year range (0.20-0.10 annual exceedance probability), but close to 20-year (0.05 AEP) in the lower Dan River. Numerous roads were closed by flooding in at least a dozen counties.
Event narrativeevent_narrativeStorm total rainfall amounts of 5.16 and 5.33 inches were reported in Martinsville producing saturated soils that led to two downed trees on the mornings of the 25th and 26th. One tree was across Morningside Drive and another fell onto a house.
Yearyear2,017

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MARTINSVILLE (C) — Heavy Rain — TerraPulse