Alert archive / Arkansas / Flash Flood Warnings in 2018
Flash Flood Warning 12, NWS Little Rock, AR
NWS Little Rock, AR issued this flash flood warning at Feb 21, 2018, 9:15 PM CST for 6 counties in Arkansas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 21, 2018, 9:15 PM CST (03:15 UTC)
- Expired
- Feb 22, 2018, 12:15 AM CST
- In force
- 3 hr
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
- Flood severity
- None
Counties Arkansas County, AR, Bradley County, AR, Desha County, AR, Drew County, AR, Jefferson County, AR, Lincoln County, AR
The radar
The Little Rock radar (KLZK), 116 km from the middle of the area, began a volume at 03:18 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Shreveport, LA (KBAD), launched 00:00Z, 3.3 hours before the alert went out and 248 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 565 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 323 m²/s²
- 0-3 km storm-relative helicity
- 424 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood warning went out, 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 this flash flood warning went out at Feb 21, 5:45 PM CST, 3 hours 30 minutes earlier.
Area forecast discussion, Feb 21, 5:45 PM CST, 3 hours 30 minutes before
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</html>Hazardous weather outlook, Feb 21, 2:45 PM CST, 6 hours 30 minutes before
Hazardous Weather Outlook...Update National Weather Service Little Rock AR 245 PM CST Wed Feb 21 2018 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-221100- Boone-Marion-Baxter-Fulton-Sharp-Newton-Searcy-Stone-Izard- Independence-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- 245 PM CST Wed Feb 21 2018 This Hazardous Weather Outlook is for a Large Part of Arkansas. .DAY ONE...Rest of Today and Tonight Flood and flash flood watches remain in effect for much of Arkansas. Areas of rain, heavy at times, and isolated thunderstorms will continue to affect much of central and southern Arkansas, while lowering over northern Arkansas. River levels are coming up and areas of flooding have been reported. Tonight, most of the rain will be seen over southern and the eastern half of Arkansas. Precipitation will tend to taper off or become more spotty in the northwest, also where temperatures will be around freezing some spotty winter precipitation will be possible. No accumulations are expected. In much of the south and east, rain will continue tonight, and be heavy at times. The threat for flooding will continue. Two to five plus inches of rain have fallen over much of Arkansas, and one to two more inches of rain may be seen tonight through Thursday morning. .DAYS TWO THROUGH SEVEN...Thursday Through Tuesday Some rainfall will linger through the morning hours Thursday, mainly across southeastern portions of the area. Any rain that falls would likely only worsen expected flooding conditions. Additional heavy rainfall will return to the forecast by late Thursday through Sunday morning as the aforementioned front moves back to the north over the region. Rainfall totals across the state from Thursday through Sunday morning will likely be in the two to four inch range for many areas. As a result, the threat for widespread river and flash flooding will continue to increase throughout the week and into the weekend. Severe weather may be possible on Saturday as an upper level storm system approaches from the west. Even with well above normal temperatures expected and abundant moisture in place, certain atmospheric conditions appear to limit the severe weather threat. Be sure to monitor the latest forecast and outlooks for more information regarding this severe weather chance. .Spotter Information Statement... Flooding will continue to be a concern across Arkansas, and any significant reports are requested. Otherwise, due to a low severe weather concern, spotter activation is not anticipated through Friday. If there are severe storms, they appear most likely this weekend, and spotter activation may be required. && Visit NWS Little Rock on the web. Go to http://weather.gov/lzk. 46/67/59
In the hours before
Local storm report, Feb 21, 4:15 PM CST, 5 hours before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
415 PM CST WED FEB 21 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0413 PM FLOOD BAUXITE 34.56N 92.52W
02/21/2018 SALINE AR AMATEUR RADIO
STORM SPOTTER REPORTS WATER FROM HURRICANE CREEK IS
COVERING SARDIS ROAD NEAR BAUXITE.
&&
EVENT NUMBER LZK1800063
COOPERLocal storm report, Feb 21, 5:15 PM CST, 4 hours before
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</html>Local storm report, Feb 21, 5:19 PM CST, 3 hours 56 minutes before
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</html>Local storm report, Feb 21, 5:21 PM CST, 3 hours 54 minutes before
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</html>Local storm report, Feb 21, 6:59 PM CST, 2 hours 16 minutes before
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</html>Local storm report, Feb 21, 7:54 PM CST, 1 hour 21 minutes before
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</html>The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 6:58 PM CST | Areal Flood Warning | LZK | Arkansas, Bradley, Desha, Drew, Jefferson, Lincoln and 5 more | 9 hr |
| Feb 21, 8:18 PM CST | River Flood Advisory | LZK | Yell | 36 hr |
| Feb 21, 8:54 PM CST | Flash Flood Warning | LZK | Hot Spring | 8 hr |
| Feb 22, 3:54 AM CST | River Flood Warning | LZK | White | 4 days |
| Feb 22, 3:57 AM CST | Areal Flood Warning | LZK | Arkansas, Bradley, Desha, Drew, Jefferson, Lincoln and 5 more | 6 hr |
| Feb 22, 4:22 AM CST | Flood Watch | LZK | Baxter, Conway, Fulton, Izard, Marion, Sharp and 1 more | 68 hr |
| Feb 22, 9:32 AM CST | River Flood Advisory | LZK | Randolph | 36 hr |
| Feb 22, 10:48 AM CST | River Flood Warning | LZK | Arkansas, Monroe | 68 days |
| Feb 22, 10:59 AM CST | River Flood Warning | LZK | Ashley, Bradley, Cleveland, Drew | 14 days |
| Feb 22, 3:55 PM CST | Flash Flood Warning | LZK | Faulkner, Lonoke, Perry, Pulaski, Saline | 3 hr |
Nearby
Flash Flood Warnings in Arkansas, 2018Every flash flood warning in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.