Heavy rain brought flooding to the Fourche LaFave River and Black River at the end of April 2021.
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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 LZK wrote it up.
Heavy rain brought flooding to the Fourche LaFave River and Black River at the end of April 2021.
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 Little Rock, AR wrote its last area forecast discussion before the first event at Apr 29, 11:38 PM CST, 2 hours 37 minutes earlier.
Area Forecast Discussion National Weather Service Little Rock AR 1238 AM CDT Fri Apr 30 2021 .AVIATION... A stalled front is across north Louisiana. All sites are dry at this time but a few showers could affect LLQ during the day. Most clouds will be across the central and south sections. Patchy fog will bring MVFR conditions, otherwise VFR conditions are expected. && .PREV DISCUSSION...(ISSUED 1020 PM CDT Thu Apr 29 2021) AVIATION... Other than some mid/high clouds, mostly VFR conditions are expected overnight and into Friday. Some patchy fog may occur in places toward dawn Friday, creating brief MVFR/IFR conditions. Winds will be north to northeast at 4 to 8 mph. (46) SHORT TERM...Tonight Through Saturday Latest data from local radars indicate widely scattered, light showers across central and southern portions of the forecast area, moving to the east. A slow moving cold front was subjectively analyzed at 19z from near Pine Bluff, to near De Queen. The front is expected to stall just south of the forecast area tonight. This feature will be a focus for additional activity overnight. Some of this activity may be able to affect southern sections of the forecast area, as the convection moves eastward. The front will move north as a front late in this period. Some convective activity will be associated as this feature moves northward. More widespread precipitation is expected early in the next forecast period. LONG TERM...Saturday Night Through Thursday Long term PD wl begin w/ slightly perturbed zonal H500 flow extending across the CONUS, w/ a quasi-cutoff low positioned over TX. At the sfc, broad region of sfc anticyclonic flow wl extend over the Ern US/Appalachia, w/ cyclonic flow centered over the Frnt Rng. As such, the resulting pres grad wl keep Srly winds in place across the FA on Sun. Antecedent low-lvl moisture characterized by Td's in the low 60s, and H1000-H500 RH >80% co- located w/ increasing WAA/isentropic ascent wl allow for Chc PoPs on Sun for much of the region, w/ some localized thunder possible as well. QPF through Mon morning could become locally problematic, w/ the latest deterministic guidance suggesting greater rainfall totals possible over the Srn half of the state, w/ 1 to 1.5 inches progged. Attn wl turn to the Mon/Tues timeframe w/ potential for more scattered thunderstorm activity. The aforementioned upper cutoff low wl quickly be ingested back into the mean flow and pivot N/wrd, w/ another larger perturbation expected to dig S/wrd into the Four Corners out of the Pac/NW late Sun night. Overall rain chances remain more limited on Mon as forcing mechanisms wl not be in place despite sufficient moisture and buoyancy. PoP/Tstorm activity is expected to increase in coverage and magnitude later Mon night into Tues as the upper wave overspreads the region atop a more disheveled region of cyclonic sfc flow...a sfc bndry wl lkly be in place across the N/Wrn portion of the state, extending from the S/W to the N/E. Increasing sfc convergence could support more widespread PoP coverage later into Tues afternoon, w/ ML buoyancy progs of ~2000 J/kg over much of the state. Currently, it looks the cooler side of the aforementioned bndry wl win out, and advance S/wrd as a cold frnt through the state, driving another rnd of vigorous rain/Tstorm chances. QPF once again becomes the primary concern w/ this event and could become problematic for previously worked over areas from the week prior, where localized flash flooding could occur. Overall, a severe Tstorm threat remains limited across the FA for now w/ SPC D4/D5 risk areas splitting the Natural State. Following the FROPA Tues night, Wed wl be characterized by more settled conditions as N/Erly winds keep slightly cooler air in place. Through the PD, seasonable condns can be expected, w/ warmer readings lkly on Mon afternoon across the FA. && .LZK Watches/Warnings/Advisories...NONE. && Aviation...51
Hazardous Weather Outlook...Updated National Weather Service Little Rock AR 1030 PM CDT Thu Apr 29 2021 ARZ003>008-012>017-021>025-030>034-037>047-052>057-062>069-301000- Boone-Marion-Baxter-Fulton-Sharp-Randolph-Newton-Searcy-Stone- Izard-Independence-Lawrence-Johnson-Pope-Van Buren-Cleburne- Jackson-Logan-Conway-Faulkner-White-Woodruff-Scott-Yell-Perry- Polk-Montgomery-Garland-Saline-Pulaski-Lonoke-Prairie-Monroe-Pike- Clark-Hot Spring-Grant-Jefferson-Arkansas-Dallas-Cleveland- Lincoln-Desha-Ouachita-Calhoun-Bradley-Drew- 1030 PM CDT Thu Apr 29 2021 This Hazardous Weather Outlook is for a Large Part of Arkansas. .DAY ONE...Tonight Rivers are elevated across much of Arkansas following heavy to excessive rain Wednesday into Thursday. Minor to moderate flooding is occurring or expected along portions of the Arkansas, Black, Cache, Eleven Point, Ouachita, Spring, and lower White Rivers. .DAYS TWO THROUGH SEVEN...Friday Through Wednesday Thunderstorms are in the forecast this weekend through the middle of next week. At this time, it appears that severe weather will be spotty. However, there will be heavy rain, especially over southern and eastern sections of the state. Several inches of rain could occur, and this may cause additional flash flooding and aggravate existing flood issues along area rivers. .Spotter Information Statement... Spotter activation will not be needed. && Visit NWS Little Rock on the web. Go to https://weather.gov/lzk. 55/232/46
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
Heavy rain brought flooding to the Black River at Pocahontas at the end of April.
Heavy rain brought flooding to the Fourche LaFave River at Houston at the end of April.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arkansas in 2021Every state in 2021This day in weather historyWarnings in Arkansas, April 2021
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 2026-09-24. Each event’s entry at NCEI: 954054, 954051.