Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 42, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Jun 21, 1986, 7:31 PM MDT for Keith County, Nebraska. It was in force for 29 min.
The area
The counties it named.
The facts
- Issued
- Jun 21, 1986, 7:31 PM MDT (01:31 UTC)
- Expired
- Jun 21, 1986, 8:00 PM MDT
- In force
- 29 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Keith County, NE
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.5 hours before the alert went out and 89 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
- 2243 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 2007 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.7
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, Jun 21, 5:59 PM MDT, 1 hour 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 755 PM CDT SAT JUN 21 1986 THUNDERSTROMS HAD DEVELOPED ACROSS SOUTHWEST AND WEST CENTRAL NEBRASKA THIS EVENING. A VERY STRONG THUNDERSTORM WAS 5 MILES NORTH OF ARTHUR NEBRASKA IN ARTHUR COUNTY OF WEST CENTRAL NEBRASKA WHICH IS ABOUT 55 MILES NORTHWEST OF NORTH PLATTE NEBRASKA. THE THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR. PERSONS IN THE VICINITY OF THESE THUNDERSTORMS CAN EXPECT SOME HAIL.. HEAVY RAIN..GUSTY WIND AND FREQUENT LIGHTNING. MEYER
Special weather statement, Jun 21, 6:03 PM MDT, 1 hour 28 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION FOR THE TIME... NATIONAL WEATHER SERVICE NORTH PLATTE NE 755 PM CDT SAT JUN 21 1986 THUNDERSTROMS HAD DEVELOPED ACROSS SOUTHWEST AND WEST CENTRAL NEBRASKA THIS EVENING. AT 755 PM CDT A VERY STRONG THUNDERSTORM WAS 5 MILES NORTH OF ARTHUR NEBRASKA IN ARTHUR COUNTY OF WEST CENTRAL NEBRASKA WHICH IS ABOUT 55 MILES NORTHWEST OF NORTH PLATTE NEBRASKA. THE THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR. PERSONS IN THE VICINITY OF THESE THUNDERSTORMS CAN EXPECT SOME HAIL.. HEAVY RAIN..GUSTY WIND AND FREQUENT LIGHTNING. MEYER
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 6:25 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Grant | 65 min |
| Jun 21, 6:25 PM MDT | Severe Thunderstorm Warning | LBF | Keith | 65 min |
| Jun 21, 7:17 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln, McPherson | 73 min |
| Jun 21, 7:17 PM MDT | Severe Thunderstorm Warning | LBF | Hooker | 73 min |
| Jun 21, 7:46 PM MDT | Severe Thunderstorm Warning | LBF | Thomas | 44 min |
| Jun 21, 7:56 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 54 min |
| Jun 21, 8:23 PM MDT | Severe Thunderstorm Warning | LBF | Custer | 57 min |
| Jun 21, 8:26 PM MDT | Severe Thunderstorm Warning | LBF | Blaine, Brown, Loup, Rock | 39 min |
| Jun 21, 8:26 PM MDT | Tornado Warning | LBF | Custer | 24 min |
| Jun 21, 9:36 PM MDT | Severe Thunderstorm Warning | LBF | Wheeler | 24 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 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; the sounding from the Mesonet's radiosonde archive.