Alert archive / Missouri / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 20, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at May 12, 1986, 10:11 PM CDT for Buchanan County, Missouri. It was in force for 49 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 12, 1986, 10:11 PM CDT (03:11 UTC)
- Expired
- May 12, 1986, 11:00 PM CDT
- In force
- 49 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties
County Buchanan County, MO
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 12, 10:25 PM CDT | Hail 0.75 | Buchanan, MO |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 3.2 hours before the alert went out and 103 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
- 2058 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 1781 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
In the hours before
Special weather statement, May 12, 6:04 PM CDT, 4 hours 7 minutes before
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</html>The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 8:00 PM CDT | Severe Thunderstorm Warning | EAX | Atchison, Nodaway | 45 min |
| May 12, 8:24 PM CDT | Severe Thunderstorm Warning | EAX | Holt, Nodaway | 36 min |
| May 12, 9:06 PM CDT | Severe Thunderstorm Warning | EAX | Holt, Nodaway | 39 min |
| May 12, 9:51 PM CDT | Severe Thunderstorm Warning | EAX | Andrew | 39 min |
| May 12, 10:49 PM CDT | Severe Thunderstorm Warning | EAX | Platte | 41 min |
| May 12, 11:34 PM CDT | Severe Thunderstorm Warning | EAX | Clay, Platte | 41 min |
| May 13, 6:52 PM CDT | Tornado Warning | EAX | Maries, Miller | 53 min |
| May 12, 9:19 PM CDT | Severe Thunderstorm Warning | EAX | Doniphan | 41 min |
| May 12, 11:15 PM CDT | Severe Thunderstorm Warning | EAX | Leavenworth | 45 min |
| May 13, 12:25 AM CDT | Severe Thunderstorm Warning | EAX | Johnson | 35 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1986Every severe thunderstorm warning in 1986
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.