Alert archive / Arkansas / Flash Flood Warnings in 2018
Flash Flood Warning 1, NWS Little Rock, AR
NWS Little Rock, AR issued this flash flood warning at Feb 21, 2018, 5:27 AM CST for 7 counties in Arkansas. It was in force for 7 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, 5:27 AM CST (11:27 UTC)
- Expired
- Feb 21, 2018, 12:00 PM CST
- In force
- 7 hr
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
- Flood severity
- None
Counties Faulkner County, AR, Garland County, AR, Hot Spring County, AR, Montgomery County, AR, Perry County, AR, Pulaski County, AR, Saline County, AR
The radar
The Little Rock radar (KLZK), 56 km from the middle of the area, began a volume at 11:28 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, 11.5 hours before the alert went out and 261 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
- 788 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 726 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 243 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 5.3
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, 4:12 AM CST, 1 hour 15 minutes earlier.
Area forecast discussion, Feb 21, 4:12 AM CST, 1 hour 15 minutes before
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</html>Hazardous weather outlook, Feb 21, 5:00 AM CST, 27 minutes before
Hazardous Weather Outlook National Weather Service Little Rock AR 500 AM 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- 500 AM CST Wed Feb 21 2018 This Hazardous Weather Outlook is for a Large Part of Arkansas. .DAY ONE...Today and Tonight Areas of rain and isolated thunderstorms will gradually build into the southeast half of Arkansas today and tonight. This will be along and north of a cold front that will eventually stall in northern Louisiana. Precipitation will tend to taper off or become more spotty in the northwest. There could be a brief period of freezing rain in the far northwest this morning. In much of the south and east, rain will become heavy to possibly excessive through tonight. Two to four inches of liquid is in the forecast, with locally higher amounts. This includes areas from Mena, Conway, and Newport to the southeast. .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/outlooks for more information regarding these severe weather chances. .Spotter Information Statement... 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
In the hours before
Special weather statement, Feb 21, 3:26 AM CST, 2 hours 1 minute before
Special Weather Statement National Weather Service Little Rock AR 326 AM CST Wed Feb 21 2018 ARZ003-012-211600- Boone-Newton- Including the cities of Harrison, Omaha, Lead Hill, Jasper, Western Grove, and Deer 326 AM CST Wed Feb 21 2018 ...Light Freezing Rain Possible This Morning... Rain will gradually taper off from the northwest this morning. At the same time, temperatures will continue to slowly drop, with subfreezing readings in places. Given this, there will likely be a period of freezing rain. Other than a few icy patches on bridges and overpasses, widespread travel problems are not expected. There may also be a minor glaze of ice on elevated objects. 46
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 6:17 PM CST | Special Weather Statement | LZK | Garland, Montgomery | 43 min |
| Feb 20, 7:11 PM CST | Special Weather Statement | LZK | Conway, Perry, Saline | 49 min |
| Feb 20, 8:37 PM CST | Special Weather Statement | LZK | Cleburne, Independence, Stone, White | 38 min |
| Feb 21, 6:31 AM CST | Flash Flood Warning | LZK | Hot Spring | 3 hr |
| Feb 21, 6:53 AM CST | Flash Flood Warning | LZK | Montgomery, Polk, Scott | 3 hr |
| Feb 21, 7:46 AM CST | River Flood Warning | LZK | Yell | 49 hr |
| Feb 21, 8:30 AM CST | Flash Flood Warning | LZK | Cleburne, Conway, Faulkner, Lonoke, Perry, Pulaski and 3 more | 4 hr |
| Feb 21, 8:46 AM CST | Flash Flood Warning | LZK | Lonoke, Prairie, White | 3 hr |
| Feb 21, 9:21 AM CST | Flash Flood Warning | LZK | Hot Spring | 3 hr |
| Feb 21, 10:56 AM CST | River Flood Warning | LZK | Independence, Jackson, Lawrence | 20 days |
| Feb 21, 11:01 AM CST | River Flood Warning | LZK | White, Woodruff | 29 days |
| Feb 21, 11:59 AM CST | Areal Flood Warning | LZK | Clark, Dallas, Faulkner, Garland, Hot Spring, Montgomery and 4 more | 6 hr |
| Feb 21, 12:07 PM CST | Areal Flood Warning | LZK | Cleburne, Conway, Faulkner, Independence, Jackson, Lonoke and 7 more | 6 hr |
| Feb 21, 12:15 PM CST | Flash Flood Warning | LZK | Hot Spring | 3 hr |
| Feb 21, 2:48 PM CST | Areal Flood Warning | LZK | Bradley, Calhoun, Clark, Cleveland, Dallas, Grant and 6 more | 15 hr |
| Feb 21, 3:04 PM CST | Flash Flood Warning | LZK | Hot Spring | 3 hr |
| Feb 21, 3:55 PM CST | Winter Weather Advisory | LZK | Baxter, Fulton, Izard, Marion, Stone | 14 hr |
| Feb 21, 3:57 PM CST | River Flood Warning | LZK | Yell | 5 days |
| Feb 21, 4:21 PM CST | Flash Flood Warning | LZK | Desha, Drew, Lincoln | 3 hr |
| Feb 21, 5:02 PM CST | Areal Flood Warning | LZK | Arkansas, Desha, Jefferson, Lincoln, Lonoke, Monroe and 3 more | 118 min |
| Feb 21, 5:49 PM CST | Areal Flood Warning | LZK | Cleburne, Conway, Faulkner, Independence, Jackson, Lonoke and 6 more | 12 hr |
| Feb 21, 5:53 PM CST | Areal Flood Warning | LZK | Clark, Dallas, Garland, Hot Spring, Logan, Montgomery and 6 more | 6 hr |
| Feb 21, 5:56 PM CST | Flash Flood Warning | LZK | Hot Spring | 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.