Alert archive / Arkansas / Flash Flood Warnings in 2020
Flash Flood Warning 103, NWS Little Rock, AR
NWS Little Rock, AR issued this flash flood warning at Sep 2, 2020, 6:41 AM CDT for 4 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
- Sep 2, 2020, 6:41 AM CDT (11:41 UTC)
- Expired
- Sep 2, 2020, 9:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
- Flood severity
- None
Counties Independence County, AR, Izard County, AR, Lawrence County, AR, Sharp County, AR
The radar
The Little Rock radar (KLZK), 147 km from the middle of the area, began a volume at 11:43 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
Springfield, MO (KSGF), launched 00:00Z, 11.7 hours before the alert went out and 227 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
- 9 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 864 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 11 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 Sep 2, 6:27 AM CDT, 14 minutes earlier.
Area forecast discussion, Sep 2, 6:27 AM CDT, 14 minutes before
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</html>Hazardous weather outlook, Sep 2, 3:01 AM CDT, 3 hours 40 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Little Rock AR 301 AM CDT Wed Sep 2 2020 ARZ003>008-012>017-021>025-030>034-037>047-052>057-062>069-030815- 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- 301 AM CDT Wed Sep 2 2020 This Hazardous Weather Outlook is for a Large Part of Arkansas. .DAY ONE...Overnight Tuesday and into Wednesday Additional showers and thunderstorms are expected to re-develop late tonight, with the area of greatest concern from western into central Arkansas. The biggest concern with storms late tonight into Wednesday morning will be heavy rainfall and possible significant and widespread flash flooding, especially where record rains have fallen in the last month over western portions of the state. This is quickly approaching the upper echelon of bad scenarios and poses a significant risk to lives and property across a large area. Not heeding warnings, driving on flooded roads, or not evacuating to higher ground should conditions warrant may prove fatal. Please exercise an abundance of caution and monitor all forecasts and warnings. River flooding is also occurring and will slow runoff from heavy rain. This is a potentially dangerous and grave situation. River flooding is a growing concern as excessive runoff from saturated ground is expected. The areas of greatest concerns will be smaller creeks and streams located in the Upper Ouachita River basin and the tributaries of the Arkansas River in West Central Arkansas. Any additional rainfall will likely drive crests higher potentially flooding additional homes and roads by early Wednesday. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Flash flooding remains likely across roughly the northwestern half of the state through Thursday. The most significant impacts are expected over western and southwestern Arkansas where widespread flash flooding has already occurred. River flooding will be a threat through the end of the week as flood waters route into larger streams and rivers. Heading into the weekend, drier conditions will ensue as high pressure moves into the region. .Spotter Information Statement... Spotter activation will not be needed. && Visit NWS Little Rock on the web. Go to http://weather.gov/lzk. 232/JONES
In the hours before
Local storm report, Sep 2, 5:56 AM CDT, 45 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 |
|---|---|---|---|---|
| Sep 2, 3:45 AM CDT | Flash Flood Warning | LZK | Johnson, Logan, Pope, Yell | 5 hr |
| Sep 2, 6:04 AM CDT | Flash Flood Warning | LZK | Cleburne, Conway, Pope, Searcy, Stone, Van Buren | 4 hr |
| Sep 2, 7:47 AM CDT | Flash Flood Warning | LZK | Lawrence, Randolph | 3 hr |
| Sep 2, 8:53 AM CDT | Areal Flood Advisory | LZK | Montgomery, Polk, Scott, Yell | 3 hr |
| Sep 2, 10:11 AM CDT | Special Weather Statement | LZK | Grant | 34 min |
| Sep 2, 10:43 AM CDT | Special Weather Statement | LZK | Jefferson | 32 min |
| Sep 2, 10:46 AM CDT | River Flood Warning | LZK | Independence, Jackson, Lawrence | 20 hr |
| Sep 2, 11:49 AM CDT | Areal Flood Advisory | LZK | Logan, Polk, Scott | 5 hr |
| Sep 2, 12:46 PM CDT | Areal Flood Advisory | LZK | Montgomery, Polk | 2 hr |
| Sep 2, 1:47 PM CDT | Areal Flood Advisory | LZK | Logan, Montgomery, Scott, Yell | 3 hr |
| Sep 2, 2:10 PM CDT | Areal Flood Advisory | LZK | Johnson, Pope, Yell | 4 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.