Alert archive / Kansas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 99, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Aug 17, 1987, 10:32 PM CDT for McPherson County, Kansas. It was in force for 58 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
- Aug 17, 1987, 10:32 PM CDT (03:32 UTC)
- Expired
- Aug 17, 1987, 11:30 PM CDT
- In force
- 58 min
- Issued by
- NWS Topeka, KS
- Area
- Whole counties
County McPherson County, KS
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 |
|---|---|---|---|
| Aug 17, 11:22 PM CDT | Thunderstorm Wind 52 | Mcpherson, KS |
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, 3.5 hours before the alert went out and 187 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
- 2117 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1440 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.8
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, Aug 17, 7:42 PM CDT, 2 hours 50 minutes before
SPECIAL WEATHER STATEMENT CORRECTION TIME NATIONAL WEATHER SERVICE CONCORDIA KS 740 PM CDT MON AUG 17 1987 ...THUNDERSTORMS ARELMOVING INTO NORTH CENTRAL KANSAS THIS EVENING... AT 740 PM CDT RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN SPREADING INTO WESTERN SMITH COUNTY FROM NEAR SMITH CENTER TO KENSINGTON. AN INTENSE THUNDERSTORM WAS LOCATED 25 MILES NORTH OF HILL CITY. THE THUNDER/ STORM WERE MOVING TO THE EAST AT 20 MPH. BRIEF BUT HEAV?Y RAIN AND DANGEROUS LIGHTNING CAN BE EXPECTED FROM THESE THUNDERSORMS. PETERSEN
Special weather statement, Aug 17, 9:21 PM CDT, 1 hour 11 minutes before
SPECIAL WEATHER STATEMENT CORRECTION TIME NATIONAL WEATHER SERVICE CONCORDIA KS 920 PM CDT MON AUG 17 1987 AT 920 PM CDT RADAR INTICATED AN INTENSE THUNDERSTORM IN NORTHWEST MCPHERSON COUNTY JUST WEST OF LINDSBORG. SMALL HAIL WAS REPORTED WITH THIS THUNDER/ STORM AT MARQUETTE. THE THUNDERSTORM WILL MOVE TO THE SOUTHEAST AND WILL LIKELY MOVE INTO THE MCPHERSON AREA BY 10 PM CDT. VERY HEAY RAIN STRONG GUSTY WINDS AND DANGEROUS LIGHTNING ARE POSSIBLE WITH THIS THUNDERSTORM. PETERSEN
Special weather statement, Aug 17, 10:23 PM CDT, 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 1020PM CDT MON AUB 19 1987 ...SEVERE THUNDERSTORM WATCH FOR MUCH OF NORTHEAST AND EAST CENTRAL KANSAS TIL 4 AM TUESDAY MORING.... AS OF 1010 PM CDT NO SEVERE WEATHER HAD BEEN REPORTED IN NORTHEAST OR EAST CENTRAL KANSAS. THE ONLY THUNDERSTORM IN THE AREA WAS LOCATED IN THE EXTREME NORTHEAST CORNER OF MARSHALL COUNTY IN NORTHEAST KANSAS AND WAS OF MODERATE INTENSITY. VERY INTENSE THUNDERSTORMS WERE LOCATED OVER CENTRAL KANSAS OVER DICKERSON AND MCPHERSON COUNTIES. THESE THUNDERSTORMS HAVE BEEN MOVING TO THE EAST NORTHEAST AT AROUND 20 MILES AN HOUR AND COULD BE MOVING INTO WESTERN GEARY OR WESTERN MORRIS COUNTY AFTER 1115 PM. WESTERN GEARY AND WESTERN MORRIS COUNTIES SHOULD BE ALERT FOR STRONG GUSTY WINDS...HEAVY RAINS...INTENSE LIGHTNING AND POSSIBLE HAIL AS THESE THUNDERSTORMS MOVE INTO THAT AREA AFTER 1115 PM. CRANDALL
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 9:33 PM CDT | Severe Thunderstorm Warning | TOP | McPherson, Saline | 57 min |
| Aug 17, 10:04 PM CDT | Severe Thunderstorm Warning | TOP | Dickinson | 56 min |
| Aug 17, 10:30 PM CDT | Severe Thunderstorm Warning | TOP | Barton | 60 min |
| Aug 17, 10:30 PM CDT | Severe Thunderstorm Warning | TOP | Russell | 53 min |
| Aug 17, 10:39 PM CDT | Severe Thunderstorm Warning | TOP | Washington | 61 min |
| Aug 17, 11:17 PM CDT | Severe Thunderstorm Warning | TOP | Marshall, Riley | 63 min |
| Aug 17, 11:23 PM CDT | Severe Thunderstorm Warning | TOP | Barton | 57 min |
| Aug 17, 11:43 PM CDT | Severe Thunderstorm Warning | TOP | Washington | 57 min |
| Aug 18, 12:11 AM CDT | Severe Thunderstorm Warning | TOP | Pottawatomie | 59 min |
| Aug 18, 12:11 AM CDT | Severe Thunderstorm Warning | TOP | Marshall, Riley | 39 min |
| Aug 18, 12:18 AM CDT | Severe Thunderstorm Warning | TOP | Barton | 62 min |
| Aug 18, 12:28 AM CDT | Severe Thunderstorm Warning | TOP | Rice | 62 min |
| Aug 18, 12:30 AM CDT | Severe Thunderstorm Warning | TOP | McPherson | 60 min |
| Aug 18, 1:30 AM CDT | Severe Thunderstorm Warning | TOP | Lincoln, Russell | 60 min |
| Aug 18, 9:02 AM CDT | Severe Thunderstorm Warning | TOP | Barton | 34 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 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.