Alert archive / Missouri / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 56, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 16, 1987, 6:35 PM CDT for Lewis County, Marion County, Shelby County, Missouri. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Aug 16, 1987, 6:35 PM CDT (23:35 UTC)
- Expired
- Aug 16, 1987, 7:30 PM CDT
- In force
- 55 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Lewis County, MO, Marion County, MO, Shelby County, MO
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
Peoria Regional, IL (KPIA), launched 12:00Z, 11.6 hours before the alert went out and 206 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
- 1711 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 818 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- -15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 162333 SVRSTL MOC111-205-127-170030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 635 PM CDT SUN AUG 16 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 730 PM CDT FOR THE FOLLOWING COUNTIES OF NORTHEAST MISSOURI... LEWIS... SHELBY... MARION AT 625PM THIS EVENING NATIONAL WEATHER SERVICE RADAR INDICATED A POTENTIALLY SEVERE THUNDERSTORM FROM LABELLE IN LEWIS COUNTY TO CLARANCE IN SHELBY COUNTY. THIS IS LOCATED BETWEEN KIRKSVILLE AND QUINCY. THIS STORM IS CAPABLE OF PRODUCING VERY STRONG AND POTENTIALLY DAMAGING WINDS. MOVEMENT WAS EAST AT 30 MILES AN HOUR. PROTECT YOURSELF FR^OM DAMAGING WINDS...LARGE HAIL AND LIGHTNING BY STAYING IN A BUILDING...AWAY FROM WINDOWS. DO NOT USE THE TELEPHONE OR ELECTRICAL APPLIANCES...EXCEPT IN EMERGENCIES. FELDT
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 16, 5:20 PM CDT, 1 hour 15 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 520 PM CDT SUN AUG 16 1987 ...STRONG THUNDERSTORMS DEVELOPING OVER WEST AND NORTH CENTRAL MISSOURI... STRONG THUNDERSTORMS WERE DEVELOPING IN A 10 MILE WIDE BAND FROM NEAR WARSAW IN BENTON COUNTY TO NEAR SEDALIA IN PETTIS COUNTY. STRONG THUNDERSTORMS WERE ALSO DEVELOPING FROM 10 MILES WEST OF KIRKSVILLE TO 25 MILES SOUTHWEST OF KIRKSVILLE. THE THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR AND COULD PRODUCE HAIL..STRONG GUSTY WIND HEAVY RAIN AND VERY DANGEROUS LIGHTNING. LA GREE
Special weather statement, Aug 16, 5:30 PM CDT, 1 hour 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 525 PM CDT SUN AUG 16 1987 AT 525 PM STRONG THUNDERSTORMS WERE DEVELOPING FROM SOUTHEAST IOWA ACROSS NORTHEAST MISSOURI INTO CENTRAL MISSOURI. THESE STRONG THUNDERSTORMS WERE ASSOCIATED WITH A COLD FRONT THAT WAS MOVING EASTWARD ACROSS MISSOURI. STRONGEST THUNDERSTORMS WERE CLUSTERED ACROSS ADAIR COUNTY. THE MISSOURI STATE POLICE REPORT SMALL HAIL AND VERY HEAVY RAIN NEAR THOUSAND HILLS STATE PARK JUST WEST OF KIRKSVILLE. SINCE THE STORMS ARE MOVING EAST NORTHEAST AT 25 MILES AN HOUR.. THEY WILL BE IN THE KIRKSVILLE AREA BETWEEN 530 AND 630PM THIS EVENING. PERSONS IN KIRKSVILLE CAN EXPECT A PERIOD OG HEAVY RAIN .. GUSTY WINDS .. FREQUENT LIGHTNING AND POSSIBLY SOME HAIL AS THE STORMS PASS. FELDT
Special weather statement, Aug 16, 6:07 PM CDT, 28 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 610 PM CDT SUN AUG 16 1987 ...SEVERE THUNDERSTORM WARNING FOR MORGAN...EASTERN PETTIS SOUTHERN COOPER AND MONITEAU COUNTIES UNTIL 630 PM... A LINE OF SEVERE THUNDERSTORMS ABOUT 10 MILES WIDE STRETCHED FROM 25 MILES WEST OF COLUMBIA TO NEAR HERMITAGE MOVING EAST AT 30 MILES AN HOUR. WIND GUSTS TO 50 MILES AN HOUR WERE REPORTED IN WESTERN MORGAN COUNTY AT 555 PM CDT...AND PEA SIZED HAIL WAS REPORTED NEAR HERMITAGE IN BENTON COUNTY AT THE SAME TIME. LARGE HAIL AND STRONG GUSTY WIND WILL BE LIKELY WITH THESE THUNDERSTORMS...ALONG WITH HEAVY RAIN AND VERY DANGEROUS LIGHTNING. IF SEVERE WEATHER IS SPOTTED GO TO A PLACE OF SAFET/Y. LA GREE
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; the sounding from the Mesonet's radiosonde archive.