Alert archive / Missouri / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 25, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 5, 1987, 11:39 AM CDT for Crawford County, Dent County, Phelps County, Missouri. It was in force for 51 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
- Jul 5, 1987, 11:39 AM CDT (16:39 UTC)
- Expired
- Jul 5, 1987, 12:30 PM CDT
- In force
- 51 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Crawford County, MO, Dent County, MO, Phelps 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 |
|---|---|---|---|
| Jul 5, 12:00 PM CDT | Thunderstorm Wind 0 | Crawford, MO | |
| Jul 5, 12:05 PM CDT | Thunderstorm Wind 56 | Phelps, MO | |
| Jul 5, 12:10 PM CDT | Thunderstorm Wind 0 | Dent, 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
Springfield, MO (KUMN), launched 12:00Z, 4.7 hours before the alert went out and 225 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
- 2832 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 713 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 262 m²/s²
- 0-3 km storm-relative helicity
- 272 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 051639 SVRSTL MOC055-065-161-051730- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1139 AM CDT SUN JUL 5 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 PM CDT FOR THE FOLLOWING COUNTIES OF EAST CENTRAL MISSOURI... CRAWFORD SOUTHEAST MISSOURI... DENT... PHELPS A LINE OF SEVERE THUNDERSTORMS EXTENDED FROM VICHY MISSOURI TO HOUSTON MISSOURI AT 1130 AM CDT AND WAS MOVING TO THE EAST AT 35 TO 40 MPH. DAMAGING WINDS ARE LIKELY WITH THESE SEVERE STORMS. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND...LARGE HAIL AND DEADLY LIGHTNING. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE STORM IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. REH
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, Jul 5, 7:58 AM CDT, 3 hours 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 0745 AM CDT SUN JUL 5 1987 ...SEVERE THUNDERSTORM WATCH FOR SOUTHWEST MISSOURI... ...MORE THUNDERSTORMS EXPECTED OVER MUCH OF THE STATE... THE NATIONAL SEVERE STORMS FORECAST CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR THE SOUTHWEST CORNER OF MISSOURI. A THUNDERSTORM COMPLEX IS EXPECTED TO SLIDE OUT OF KANSAS AND PRODUCE HEAVY RAINS...POSSIBLY LARGE HAIL AND DAMAGING WIND TO THAT AREA OF THE STATE. ALSO...PART OF THE THUNDERSTORM COMPLEX IS DEVELOPING TOWARD EAST CENTRAL KANSAS AND WEST CENTRAL MISSSOURI. THE AIR IS VERY MOIST AND UNSTABLE OVER THE AREA AND THERE IS ALSO A LEFTOVER THUNDERSTORM BOUNDARY THAT STRETCHES ACROSS MISSOURI TO JUST SOUTH OF ST LOUIS. THIS COMBINATION SHOULD BE ENOUGH TO IGNITE A NUMBER OF THUNDERSTORMS OVER MUCH OF WEST...CENTRAL AND EVENTUALLY EAST CENTRAL MISSOURI. THIS MAY PUT A DAMPER ON SOME OF THE SCHEDULED HOLIDAY ACTIVITIES TODAY SUCH AS THE V.P. FAIR ACTIVITIES IN ST LOUIS. INTERESTED PERSONS SHOULD MONITOR COMMERCIAL TELEVISION AND RADIO STATIONS OR LISTEN TO NOAA WEATHER RADIO FOR UPDATED FORECASTS...RADAR SUMMARIES OR SPECIAL STATEMENTS. SOME OF THESE STORMS MAY PRODUCE STRONG WINDS...HEAVY RAIN...HAIL AND INTENSE LIGHTNING. TUCKER
Special weather statement, Jul 5, 10:23 AM CDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1020 AM CDT SUN JUL 5 1987 THE PORTION OF SEVERE THUNDERSTORM NUMBER 319 WHICH INCLUDED THE KANSAS CITY METROPOLITAN AREA HAS BEEN CANCELLED. REH
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 12:00 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Warren | 60 min |
| Jul 5, 12:30 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Charles, Saint Louis | 60 min |
| Jul 5, 12:30 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 60 min |
| Jul 5, 1:06 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 54 min |
| Jul 5, 1:06 PM CDT | Severe Thunderstorm Warning | LSX | City of Saint Louis | 54 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 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.