Alert archive / Arkansas / Flash Flood Warnings in 2020
Flash Flood Warning 62, NWS Little Rock, AR
NWS Little Rock, AR issued this flash flood warning at Aug 12, 2020, 3:28 AM CDT for 4 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
- Aug 12, 2020, 3:28 AM CDT (08:28 UTC)
- Expired
- Aug 12, 2020, 10:25 AM CDT
- In force
- 7 hr
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
- Flood severity
- None
Counties Montgomery County, AR, Pike County, AR, Polk County, AR, Scott County, AR
The radar
The Western Arkansas radar (KSRX), 96 km from the middle of the area, began a volume at 08:32 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 (KSHV), launched 00:00Z, 8.5 hours before the alert went out and 226 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
- 1359 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1735 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
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 Aug 11, 2:31 PM CDT, 12 hours 57 minutes earlier.
Area forecast discussion, Aug 11, 2:31 PM CDT, 12 hours 57 minutes before
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</html>Hazardous weather outlook, Aug 11, 4:15 AM CDT, 23 hours 13 minutes before
Hazardous Weather Outlook National Weather Service Little Rock AR 415 AM CDT Tue Aug 11 2020 ARZ003>008-012>017-021>025-030>034-037>047-052>057-062>069-121000- 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- 415 AM CDT Tue Aug 11 2020 This Hazardous Weather Outlook is for a Large Part of Arkansas. .DAY ONE...Today and Tonight Showers and thunderstorms will be possible late this morning and into the evening hours over the majority of the state. Some storms may be strong to possibly severe with the primary hazard being strong winds. Unseasonably hot conditions will continue this afternoon with high temperatures in the lower to mid 90s for most locations. Widespread heat index values in excess of 100 degrees are expected with a few areas possibly reaching 105 degrees for a brief period of time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Hot and humid conditions will continue through the end of the week, with chances for mainly afternoon showers and thunderstorms. While organized severe is not anticipated, a few stronger storms can not be ruled out. the primary concern with any strong storm would be gusty winds. .Spotter Information Statement... Spotter activation will not be needed. && Visit NWS Little Rock on the web. Go to http://weather.gov/lzk.
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 2:23 AM CDT | Special Weather Statement | LZK | Polk | 52 min |
| Aug 12, 5:37 AM CDT | Flash Flood Warning | LZK | Calhoun, Clark, Cleveland, Dallas, Garland, Hot Spring and 3 more | 3 hr |
| Aug 12, 7:34 AM CDT | Flash Flood Warning | LZK | Calhoun, Ouachita | 116 min |
| Aug 12, 10:28 AM CDT | Flash Flood Warning | LZK | Polk, Scott | 117 min |
| Aug 12, 12:39 PM CDT | Areal Flood Warning | LZK | Polk, Scott | 3 hr |
Nearby
Flash Flood Warnings in Arkansas, 2020Every flash flood warning in 2020
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.