Alert archive / Arkansas / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 203, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at May 27, 2017, 12:57 AM CDT for Boone County, Marion County, Arkansas. It was in force for 48 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
- May 27, 2017, 12:57 AM CDT (05:57 UTC)
- Expired
- May 27, 2017, 1:45 AM CDT
- In force
- 48 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Boone County, AR, Marion County, AR
The radar
The Springfield radar (KSGF), 115 km from the middle of the area, began a volume at 05:58 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 |
|---|---|---|---|
| May 27, 12:06 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 6.0 hours before the alert went out and 106 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
- 2596 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 942 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 6.5
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 May 26, 6:09 PM CDT, 6 hours 48 minutes earlier.
Area forecast discussion, May 26, 6:09 PM CDT, 6 hours 48 minutes before
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</html>Hazardous weather outlook, May 26, 2:59 PM CDT, 9 hours 58 minutes before
Hazardous Weather Outlook...Updated National Weather Service Little Rock AR 259 PM CDT Fri May 26 2017 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-271000- Boone-Marion-Baxter-Fulton-Sharp-Newton-Searcy-Stone-Izard- Independence-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- 259 PM CDT Fri May 26 2017 This Hazardous Weather Outlook is for a Large Part of Arkansas. .DAY ONE...Today and Tonight No hazardous weather is expected through tonight. .DAYS TWO THROUGH SEVEN...Saturday through Thursday There is a Moderate Risk of severe thunderstorms in the north Saturday, likely Saturday night. There is an Enhanced Risk surrounding the Moderate Risk that extends into central and southwest Arkansas.Severe thunderstorms will become possible Saturday afternoon and early evening across the northern/northwestern half of Arkansas. While uncertainty exists on whether storms can form and become mature...any storm that does form will have the potential to produce very large hail and damaging winds. These storms may also be capable of producing a tornado or two. As time goes on late Saturday evening into the early morning hours on Sunday...the potential for seeing more organized thunderstorms will increase as a cold front drops south towards the state. These thunderstorms could also become severe...with damaging winds possible with the strongest storms as this activity looks to form into a larger...more organized line or complex. Large hail and a few brief tornadoes will also be possible as this line or complex moves south across northern Arkansas. Some locally heavy rain may also be seen...resulting in an isolated flash flood threat. By Sunday morning...the threat for seeing severe weather will have decreased...but the cold front will still be dropping south across the state. Additional thunderstorms will be possible Sunday afternoon and evening across the southern/southeastern half of the state as the cold front pushes through this region of Arkansas. Additional strong to severe thunderstorms may again be possible during this period. Calmer and drier conditions will be seen for Monday into Tuesday. The threat for hazardous weather will then become low. .Spotter Information Statement... Spotter activation is not anticipated at this time. However, please monitor forecast trends over the holiday weekend. && Visit NWS Little Rock on the web. Go to http://weather.gov/lzk. 44/62/51
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 1:37 AM CDT | Severe Thunderstorm Warning | LZK | Boone, Marion | 38 min |
| May 27, 2:11 AM CDT | Severe Thunderstorm Warning | LZK | Baxter, Boone, Marion | 49 min |
| May 27, 2:25 AM CDT | Severe Thunderstorm Warning | LZK | Baxter, Fulton, Izard, Marion | 50 min |
| May 27, 3:07 AM CDT | Severe Thunderstorm Warning | LZK | Baxter, Fulton, Izard, Marion, Sharp | 38 min |
| May 27, 3:10 AM CDT | Flash Flood Warning | LZK | Baxter, Boone, Marion | 3 hr |
| May 27, 3:38 AM CDT | Severe Thunderstorm Warning | LZK | Baxter, Fulton, Izard, Sharp | 52 min |
| May 27, 4:15 AM CDT | Severe Thunderstorm Warning | LZK | Sharp | 30 min |
| May 27, 4:36 AM CDT | Special Weather Statement | LZK | Izard, Sharp | 39 min |
| May 27, 5:17 AM CDT | Special Weather Statement | LZK | Lawrence | 28 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.