Alert archive / Missouri / Special Weather Statements in 2017
Special Weather Statement, NWS Springfield, MO
NWS Springfield, MO issued this special weather statement at Jun 15, 2017, 8:39 PM CDT for Barton County, Vernon County, Missouri; Bourbon County, Crawford County, Kansas. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 15, 2017, 8:39 PM CDT (01:39 UTC)
- Expired
- Jun 15, 2017, 9:30 PM CDT
- In force
- 51 min
- Issued by
- NWS Springfield, MO
Counties Bourbon County, KS, Crawford County, KS, Barton County, MO, Vernon County, MO
The radar
The Pleasant Hill radar (KEAX), 105 km from the middle of the area, began a volume at 01:40 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, 1.7 hours before the alert went out and 131 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
- 3364 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1267 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Springfield, MO wrote its last area forecast discussion before this special weather statement went out at Jun 15, 6:05 PM CDT, 2 hours 34 minutes earlier.
Area forecast discussion, Jun 15, 6:05 PM CDT, 2 hours 34 minutes before
Area Forecast Discussion National Weather Service Springfield MO 605 PM CDT Thu Jun 15 2017 .SHORT TERM...(Late this Afternoon through Friday) Issued at 222 PM CDT Thu Jun 15 2017 Our main focus will be on convection currently firing across central Kansas. There are multiple contributing factors which favor this convection growing upscale into a mesoscale convective system (MCS) this evening. This includes an atmosphere which will favor increasing thunderstorm coverage owing to a mid-level short wave trough and a strengthening low level jet. Additionally, strong differences in theta-e between the surface and 3 km agl will support aggressive conglomeration of cold pools. This system should take on forward propagating characteristics and move southeast towards western Missouri this evening. Thus, we have continued the mention of damaging winds and perhaps some large hail from this MCS. This system should become increasingly outflow dominant with time as it moves east across portions of the Ozarks. Thus, the severe threat will wane the farther east you go across the region. Thunderstorm chances then appear to be rather low for Friday once any remaining morning activity clears the area. We will have to watch for any remaining outflow boundaries, however the presence of short wave ridging should inhibit initiation over most areas. Friday again looks very warm with highs in the upper 80s to lower 90s. .LONG TERM...(Friday Night through Thursday) Issued at 222 PM CDT Thu Jun 15 2017 The setup again looks favorable for MCS development Friday night, but farther to the north from northern Kansas into southeastern Nebraska and western Iowa. This system should then track southeast and impact portions of central Missouri and the Missouri Ozarks. There will again be a threat for damaging winds and perhaps some hail with this activity. Saturday then looks very warm and dry before a cold front pushes through the area from Saturday night into Sunday morning. Chances for showers and thunderstorms look pretty good for much of the area with this frontal passage as upper level energy dives southeast into the Great Lakes and Corn Belt. At this point, it is tough to say when precipitation will clear out of the area on Sunday. Drier weather and cooler temperatures can then be expected to start next work week. There is a weak signal for more thunderstorm potential by midweek. Temperatures should warm back up to near normal by Tuesday and especially Wednesday. && .AVIATION...(For the 00Z TAFS through 00Z Friday evening) Issued at 600 PM CDT Thu Jun 15 2017 KSGF/KJLN/KBBG tafs: Thunderstorms now over central KS will shift southeast into the region within a few hours. Strong outflow wind gusts will accompany these storms, especially over the Joplin area. MVFR/brief IFR visibility with heavy rain can also be expected. Ceilings will vary with the storms, but will generally be vfr with periods of MVFR. && .SGF WATCHES/WARNINGS/ADVISORIES... MO...NONE. KS...NONE. && SHORT TERM...Schaumann LONG TERM...Schaumann AVIATION...DSA
Hazardous weather outlook, Jun 15, 7:34 PM CDT, 1 hour 5 minutes before
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</html>In the hours before
Special weather statement, Jun 15, 8:39 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 7:30 PM CDT | River Flood Warning | SGF | Cedar | 35 hr |
| Jun 15, 11:11 PM CDT | Special Weather Statement | SGF | McDonald, Newton | 49 min |
| Jun 16, 3:26 AM CDT | Heat Advisory | SGF | Barry, Barton, Benton, Camden, Cedar, Christian and 15 more | 39 hr |
| Jun 15, 9:37 PM CDT | Severe Thunderstorm Warning | SGF | Cherokee, Crawford | 53 min |
Nearby
Special Weather Statements in Missouri, 2017Special Weather Statements in Kansas, 2017Every special weather statement 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.