Alert archive / Arkansas / Flash Flood Warnings in 2018
Flash Flood Warning 104, NWS Little Rock, AR
NWS Little Rock, AR issued this flash flood warning at Aug 19, 2018, 12:34 AM CDT for 4 counties in Arkansas. It was in force for 2 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 19, 2018, 12:34 AM CDT (05:34 UTC)
- Expired
- Aug 19, 2018, 2:52 AM CDT
- In force
- 2 hr
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bradley County, AR, Calhoun County, AR, Drew County, AR, Ouachita County, AR
The radar
The Little Rock radar (KLZK), 143 km from the middle of the area, began a volume at 05:36 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, 5.6 hours before the alert went out and 179 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
- 1510 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 1908 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 81 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 Aug 18, 6:33 PM CDT, 6 hours 1 minute earlier.
Area forecast discussion, Aug 18, 6:33 PM CDT, 6 hours 1 minute before
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Special weather statement, Aug 18, 11:29 PM CDT, 1 hour 5 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 |
|---|---|---|---|---|
| Aug 18, 11:29 PM CDT | Special Weather Statement | LZK | Drew | 46 min |
| Aug 18, 11:36 PM CDT | Special Weather Statement | LZK | Calhoun, Ouachita | 39 min |
| Aug 19, 12:23 AM CDT | Special Weather Statement | LZK | Bradley, Calhoun | 37 min |
| Aug 19, 1:18 PM CDT | Special Weather Statement | LZK | Perry | 27 min |
| Aug 19, 1:47 PM CDT | Special Weather Statement | LZK | Conway | 28 min |
| Aug 19, 2:21 PM CDT | Special Weather Statement | LZK | Faulkner | 39 min |
| Aug 19, 2:52 PM CDT | Special Weather Statement | LZK | Ouachita | 38 min |
| Aug 19, 3:37 PM CDT | Special Weather Statement | LZK | Cleveland | 38 min |
| Aug 19, 3:46 PM CDT | Special Weather Statement | LZK | White | 44 min |
| Aug 19, 4:26 PM CDT | Special Weather Statement | LZK | Cleveland | 49 min |
| Aug 19, 5:06 PM CDT | Special Weather Statement | LZK | Lincoln | 24 min |
| Aug 19, 5:22 PM CDT | Severe Thunderstorm Warning | LZK | Johnson | 38 min |
| Aug 19, 5:37 PM CDT | Tornado Warning | LZK | Johnson, Logan | 38 min |
| Aug 19, 5:50 PM CDT | Special Weather Statement | LZK | Arkansas | 25 min |
| Aug 19, 6:07 PM CDT | Tornado Warning | LZK | Johnson, Pope | 53 min |
| Aug 19, 6:23 PM CDT | Tornado Warning | LZK | Johnson, Logan, Pope | 32 min |
| Aug 19, 6:51 PM CDT | Tornado Warning | LZK | Pope, Van Buren | 39 min |
| Aug 19, 6:53 PM CDT | Flash Flood Warning | LZK | Johnson, Logan, Pope | 4 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.