Widespread showers and thunderstorms to the north of a stalled frontal boundary produced locally heavy rainfall across much of northwestern Arkansas on the 23rd and 24th. 5 and 5 inches of rain, which resulted in some flash flooding.
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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 TSA wrote it up.
Widespread showers and thunderstorms to the north of a stalled frontal boundary produced locally heavy rainfall across much of northwestern Arkansas on the 23rd and 24th. Portions of Benton County received between 2.5 and 5 inches of rain, which resulted in some flash flooding.
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 Tulsa, OK wrote its last area forecast discussion before the first event at Feb 23, 9:32 PM CST, 5 hours 28 minutes earlier.
Area Forecast Discussion
National Weather Service Tulsa OK
932 PM CST Fri Feb 23 2018
...UPDATE...
.DISCUSSION...
Broad region of ongoing convection has produced 3HR rain rates of
one half to one inch along and just south of the I-44 corridor.
Zone of strongest low level upglide will gradually shift
northeastward overnight with the heaviest precip axis following
suite. Forecast has this trend well covered and update will
largely adjust for observed radar trends. Latest data continue to
support a brief lull in convection over the area early Saturday
morning before storms again spread northward across the region.
This additional rainfall has potential to produce rapid onset
flooding given the saturated conditions. An additional concern
will be the brief window of severe weather potential as wind
fields will be intense ahead of the expanding convection.
&&
.PRELIMINARY POINT TEMPS/POPS...
TUL 42 57 30 63 / 80 80 0 0
FSM 52 65 36 66 / 100 90 0 0
MLC 46 64 31 66 / 100 90 0 0
BVO 38 54 25 61 / 70 70 0 0
FYV 51 61 30 61 / 100 80 0 0
BYV 49 62 31 59 / 100 80 10 0
MKO 45 61 29 64 / 100 90 0 0
MIO 43 55 27 60 / 100 70 0 0
F10 42 60 29 64 / 100 90 0 0
HHW 52 67 37 67 / 80 100 10 10
&&
.TSA WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch through Saturday afternoon for OKZ049-053-058-062-
063-065>076.
AR...Flood Watch through Saturday afternoon for ARZ001-002-010-011-
019-020-029.
&&
SHORT TERM...07Hazardous Weather Outlook National Weather Service Tulsa OK 456 PM CST Fri Feb 23 2018 ARZ001-002-010-011-019-020-029-OKZ049-053>076-241130- Adair OK-Benton AR-Carroll AR-Cherokee OK-Choctaw OK-Craig OK- Crawford AR-Creek OK-Delaware OK-Franklin AR-Haskell OK-Latimer OK- Le Flore OK-Madison AR-Mayes OK-McIntosh OK-Muskogee OK-Nowata OK- Okfuskee OK-Okmulgee OK-Osage OK-Ottawa OK-Pawnee OK-Pittsburg OK- Pushmataha OK-Rogers OK-Sebastian AR-Sequoyah OK-Tulsa OK-Wagoner OK- Washington OK-Washington AR- 456 PM CST Fri Feb 23 2018 ...HEAVY RAIN IMPACTS CONTINUE THROUGH SATURDAY... This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...This evening and Tonight. FLASH FLOOD. RISK...Limited. AREA...Along and southeast of Interstate 44. ONSET...Ongoing. HEAVY RAIN. RISK...Elevated. AREA...Along and southeast of Interstate 44. ONSET...Ongoing. THUNDERSTORMS WITH DANGEROUS LIGHTNING. RISK...Elevated. AREA...Primarily south of Interstate 40. ONSET...Ongoing. DISCUSSION... Widespread rain with scattered thunderstorms will continue to spread across much of eastern Oklahoma and northwest Arkansas this evening. An axis of locally heavy rainfall is likely southeast of Interstate 44, where additional amounts of one to two inches are possible this evening and overnight. These rains will raise the potential for localized flash flooding. Additionally, several larger river basins are currently in flood stage and this will continue or worsen into Saturday. The highest coverage of thunderstorms through tonight is expected to be south of Interstate 40. Severe weather is not likely. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Spotter Activation Not Expected. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. SATURDAY...Severe Thunderstorm Potential...Heavy Rain Potential. SUNDAY and MONDAY...No Hazards. TUESDAY and WEDNESDAY...Thunderstorm Potential. THURSDAY...No Hazards. EXTENDED DISCUSSION... Thunderstorms will develop early Saturday morning across north Texas and spread northeastward through the day on Saturday. Widespread rains are again expected southeast of Interstate 44 and flooding potential will further increase. Additionally, conditions will become more supportive for a few severe storms across southeast Oklahoma and west central Arkansas during the early afternoon hours. The majority of the showers and thunderstorms will push further east by Saturday evening, however any ongoing flooding will continue after the rains end. The next storm system is expected to arrive around the middle of next week which will mark the return of thunderstorm chances. weather.gov/tulsa contains additional information.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
955 PM CST FRI FEB 23 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0950 PM FLASH FLOOD CHECOTAH 35.47N 95.52W
02/23/2018 MCINTOSH OK TRAINED SPOTTER
SEVERAL COUNTY ROADS UNDERWATER AND A FEW HAVE BEEN
WASHED OUT.
&&
JBMThe Springfield radar (KSGF), 112 km away, was scanning. The volume nearest the first event began at 09:00 UTC.
1 flash flood. Local standard time, as filed.
Heavy rainfall resulted in the flooding of portions of numerous roads across northern Benton County.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arkansas in 2018Every state in 2018This day in weather historyWarnings in Arkansas, February 2018
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: 742675.