Alert archive / Arkansas / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 239, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Jun 18, 2017, 10:11 AM CDT for 6 counties in Arkansas. It was in force for 64 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
- Jun 18, 2017, 10:11 AM CDT (15:11 UTC)
- Expired
- Jun 18, 2017, 11:15 AM CDT
- In force
- 64 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 70.0 mph
Counties Garland County, AR, Montgomery County, AR, Pike County, AR, Polk County, AR, Scott County, AR, Yell County, AR
The radar
The Western Arkansas radar (KSRX), 98 km from the middle of the area, began a volume at 15:11 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 |
|---|---|---|---|
| Jun 18, 9:43 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 3.2 hours before the alert went out and 255 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
- 22 J/kg
- Mixed-layer CIN
- -256 J/kg
- Mixed-layer LCL
- 1256 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- -16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 9:13 AM CDT | Severe Thunderstorm Warning | LZK | Johnson, Logan, Newton, Pope | 62 min |
| Jun 18, 9:29 AM CDT | Severe Thunderstorm Warning | LZK | Logan, Polk, Scott, Yell | 61 min |
| Jun 18, 10:05 AM CDT | Severe Thunderstorm Warning | LZK | Conway, Logan, Pope, Van Buren, Yell | 55 min |
| Jun 18, 10:38 AM CDT | Special Weather Statement | LZK | Perry, Yell | 67 min |
| Jun 18, 10:49 AM CDT | Severe Thunderstorm Warning | LZK | Garland, Hot Spring, Perry, Saline, Yell | 45 min |
| Jun 18, 10:53 AM CDT | Special Weather Statement | LZK | Conway, Faulkner, Van Buren | 67 min |
| Jun 18, 11:24 AM CDT | Severe Thunderstorm Warning | LZK | Conway, Faulkner, Perry | 51 min |
| Jun 18, 11:55 AM CDT | Special Weather Statement | LZK | Independence, Jackson | 50 min |
| Jun 18, 11:59 AM CDT | Severe Thunderstorm Warning | LZK | Independence, Jackson | 35 min |
| Jun 18, 12:31 PM CDT | Special Weather Statement | LZK | White | 29 min |
| Jun 18, 12:40 PM CDT | Special Weather Statement | LZK | Prairie | 35 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2017Every severe thunderstorm warning in 2017
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.