Alert archive / Arkansas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 103, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Apr 12, 2020, 6:38 PM CDT for 7 counties in Arkansas. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 12, 2020, 6:38 PM CDT (23:38 UTC)
- Expired
- Apr 12, 2020, 7:30 PM CDT
- In force
- 52 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Clark County, AR, Garland County, AR, Hot Spring County, AR, Montgomery County, AR, Pike County, AR, Polk County, AR, Scott County, AR
The radar
The Western Arkansas radar (KSRX), 121 km from the middle of the area, began a volume at 23:37 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 12, 5:59 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 11.6 hours before the alert went out and 217 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
- 605 J/kg
- Mixed-layer CIN
- -277 J/kg
- Mixed-layer LCL
- 681 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 255 m²/s²
- 0-3 km storm-relative helicity
- 308 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.1
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Apr 12, 6:37 PM CDT, 1 minute earlier.
Area forecast discussion, Apr 12, 6:37 PM CDT, 1 minute before
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Special weather statement, Apr 12, 5:42 PM CDT, 56 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 |
|---|---|---|---|---|
| Apr 11, 8:20 PM CDT | River Flood Warning | LZK | Calhoun, Ouachita | 21 days |
| Apr 12, 3:17 AM CDT | Wind Advisory | LZK | Arkansas, Baxter, Cleburne, Conway, Desha, Drew and 21 more | 28 hr |
| Apr 12, 3:54 AM CDT | Special Weather Statement | LZK | Cleburne, Conway, Faulkner | 36 min |
| Apr 12, 4:08 AM CDT | Special Weather Statement | LZK | Pulaski, Saline | 52 min |
| Apr 12, 7:12 AM CDT | Special Weather Statement | LZK | Desha, Lincoln | 48 min |
| Apr 12, 7:20 AM CDT | Severe Thunderstorm Warning | LZK | Arkansas, Desha | 25 min |
| Apr 12, 7:43 AM CDT | Special Weather Statement | LZK | Desha | 47 min |
| Apr 12, 8:23 AM CDT | Special Weather Statement | LZK | Calhoun | 22 min |
| Apr 12, 8:32 AM CDT | Special Weather Statement | LZK | Cleveland, Dallas | 28 min |
| Apr 12, 8:48 AM CDT | Special Weather Statement | LZK | Cleveland | 27 min |
| Apr 12, 9:19 AM CDT | Special Weather Statement | LZK | Grant | 26 min |
| Apr 12, 9:21 AM CDT | Special Weather Statement | LZK | Grant, Jefferson | 24 min |
| Apr 12, 9:32 AM CDT | River Flood Warning | LZK | Perry | 49 hr |
| Apr 12, 11:13 AM CDT | Special Weather Statement | LZK | Calhoun | 32 min |
| Apr 12, 11:31 AM CDT | Special Weather Statement | LZK | Bradley | 29 min |
| Apr 12, 5:42 PM CDT | Special Weather Statement | LZK | Logan, Scott | 18 min |
| Apr 12, 5:44 PM CDT | Severe Thunderstorm Warning | LZK | Logan, Scott, Yell | 31 min |
| Apr 12, 6:06 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Garland, Johnson, Logan, Montgomery, Newton and 4 more | 54 min |
| Apr 12, 6:36 PM CDT | Special Weather Statement | LZK | Boone | 39 min |
| Apr 12, 6:56 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Faulkner, Garland, Johnson, Montgomery, Perry and 5 more | 49 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2020Every severe thunderstorm 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.