Alert archive / Arkansas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 90, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Jun 19, 1987, 5:30 PM CDT for 4 counties in Arkansas. It was in force for 80 min. 3 reports 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
- Jun 19, 1987, 5:30 PM CDT (22:30 UTC)
- Expired
- Jun 19, 1987, 6:50 PM CDT
- In force
- 80 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties Howard County, AR, Little River County, AR, Pike County, AR, Sevier County, AR
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 |
|---|---|---|---|
| Jun 19, 5:36 PM CDT | Thunderstorm Wind 0 | Sevier, AR | |
| Jun 19, 5:44 PM CDT | Thunderstorm Wind 52 | Little River, AR | |
| Jun 19, 5:44 PM CDT | Thunderstorm Wind 52 | Little River, AR |
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
Springfield, MO (KUMN), launched 12:00Z, 10.5 hours before the alert went out and 325 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
- 586 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 758 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 6:50 PM CDT | Severe Thunderstorm Warning | SHV | Caddo | 85 min |
| Jun 19, 6:15 PM CDT | Severe Thunderstorm Warning | SHV | Bowie, Cass | 75 min |
| Jun 19, 6:50 PM CDT | Severe Thunderstorm Warning | SHV | Nevada | 85 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 1987Every severe thunderstorm warning in 1987
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.