A slow moving thunderstorm developed over rural northwest Ashe County in a moderately unstable environment during the afternoon of the 16th. 5 inches had fallen over the past hour in the Lansing area, which was near a 50-year average recurrence interval per FLASH data.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS RNK wrote it up.
A slow moving thunderstorm developed over rural northwest Ashe County in a moderately unstable environment during the afternoon of the 16th. By 1815Z (2:15 PM EDT), estimated rainfall amounts over 2.5 inches had fallen over the past hour in the Lansing area, which was near a 50-year average recurrence interval per FLASH data. One automated personal weather station indicated rainfall rates of up to 1.5 inches per hour at times during the storm.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Blacksburg, VA wrote its last area forecast discussion before the first event at Apr 16, 9:29 AM EST, 2 hours 40 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service Blacksburg VA 551 AM EDT Tue Apr 16 2024 NCZ001>006-018>020-VAZ014>020-022>024-032>035-043>047-058-059-171000- Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes- Yadkin-Montgomery-Grayson-Carroll-Floyd-Craig-Alleghany VA-Bath- Roanoke-Botetourt-Rockbridge-Patrick-Franklin-Bedford-Amherst-Henry- Pittsylvania-Campbell-Appomattox-Buckingham-Halifax-Charlotte- 551 AM EDT Tue Apr 16 2024 This Hazardous Weather Outlook is for north central North Carolina, northwest North Carolina, central Virginia, south central Virginia, southwest Virginia and west central Virginia. .DAY ONE...Today and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. VAZ007-009>013-WVZ042>044-507-508-171000- Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Mercer-Summers-Monroe- Eastern Greenbrier-Western Greenbrier- 551 AM EDT Tue Apr 16 2024 This Hazardous Weather Outlook is for southwest Virginia and southeast West Virginia. .DAY ONE...Today and tonight. There is a Marginal Risk of severe thunderstorms afternoon and evening. The primary threat is damaging winds. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. There is a low probability for widespread hazardous weather. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The Roanoke radar (KFCX), 130 km away, was scanning. The volume nearest the first event began at 17:08 UTC.
1 heavy rain, 1 flash flood, 1 debris flow. Local standard time, as filed.
A personal weather station (Weather Underground: KNCLANSI49) recorded a 2-hour rainfall amount of 2.76 inches. This is nearly a 25-year Average Recurrence Interval event per NOAA Atlas 14 Point Precipitation Frequency estimates. Rainfall rates were measured to be as high as 1.5 inches per hour at times.
Water at least six inches deep was observed flowing across Flatwoods School Road due to heavy rain. No damage was reported to the road and it was open to traffic after the flooding ended.
A small mudslide occurred along Coy Ham Road, blocking part of the road until the debris could be cleared. Property damage is the estimate for the cleanup of the debris.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Carolina in 2024Every state in 2024This day in weather historyWarnings in North Carolina, April 2024
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1162724, 1166721, 1177291.