Alert archive / Missouri / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 66, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 26, 1987, 4:50 PM CDT for Phelps County, Missouri. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- Aug 26, 1987, 4:50 PM CDT (21:50 UTC)
- Expired
- Aug 26, 1987, 5:30 PM CDT
- In force
- 40 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Phelps 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
Springfield, MO (KUMN), launched 12:00Z, 9.8 hours before the alert went out and 208 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
- 300 J/kg
- Mixed-layer CIN
- -165 J/kg
- Mixed-layer LCL
- 1410 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 229 m²/s²
- 0-3 km storm-relative helicity
- 220 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 262152 SVRSTL MOC161-262230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 450 PM CDT WED AUG 26 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTHEAST MISSOURI... PHELPS AT 450 PM CDT A SEVERE THUNDERSTORM WAS 15 MILES SOUTHWEST OF ROLLA MISSOURI MOVING EAST NORTHEAST AT 35 MPH. THIS STORM PRODUCED HALF INCH HAIL NEAR THE PHELPS...PULASKI COUNTY LINE SOUTHWEST OF ROLLA AT 445 PM. BE ALERT FOR LARGE HAIL AND DAMAGING THUNDERSTORM WINDS. STAY INDOORS AWAY FROM WINDOWS. THE STORM WILL ALSO PRODUCE EXTREMELY HEAVY RAIN WHICH COULD FLOOD !ROADS AND LOW AREAS...AND FREQUENT CLOUD TO GROUND LIGHTNING. MCCARTHY
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 26, 4:06 PM CDT, 44 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 405 PM CDT WED AUG 26 1987 ...STRONG THUNDERSTORMS AROUND ST LOUIS AND IN SOUTH CENTRAL MISSOURI... AT 4 PM CDT...WEATHER SERVICE RADAR SHOWED SCATTERED STRONG THUNDERSTORMS IN A WIDE BAND FROM CENTRAL ILLINOIS...THROUGH THE NORTH AND WEST PARTS OF THE ST LOUIS AREA INTO SOUTH CENTRAL MISSOURI. THEY WERE MOVING NORTHEAST AT 35 MPH. SOME OF THESE STORMS...INCLUDING THE ONES AROUND THE ST. LOUIS AREA...WILL PRODUCE VERY HEAVY RAIN...GUSTY WINDS...FREQUENT LIGHTNING AND SMALL HAIL. SMALL HAIL WAS REPORTED AT OLD MONROE MISSOURI...30 MILES NORTHWEST OF ST LOUIS...AT 350 PM. THE HEAVY RAIN WILL CAUSE SOME FLOODING OF STREETS AND LOW AREAS. MOTORISTS SHOULD BE ALERT FOR REDUCED VISIBILITY IN HEAVY RAIN AND FOR WATER OVER ROADS. MCCARTHY
Special weather statement, Aug 26, 4:44 PM CDT, 6 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 440 PM CDT WED AUG 26 1987 ...STRONG THUNDERSTORMS AROUND ST LOUIS AND IN SOUTH CENTRAL MISSOURI... AT 430 PM CDT...STRONG THUNDERSTORMS WERE MOVING THROUGH NORTHERN PARTS OF THE SAINT LOUIS METRO AREA. OTHERS WERE MOVING INTO EAST CENTRAL MISSOURI AROUND WARRENTON. STRONG STORMS WERE ALSO OVER SOUTH CENTRAL MISSOURI...AROUND LEBANON ABOUT 25 MILES SOUTH OF THE LAKE OF THE OZARKS. THESE STORMS WILL PRODUCE VERY HEAVY DOWNPOURS...GUSTY WINDS...FREQUENT LIGHTNING AND SMALL HAIL. SEVERAL REPORTS HAVE BEEN RECEIVED OF HOMES BEING STRUCK BY LIGHTNING IN WESTERN ST LOUIS COUNTY AS THE STORM PASSED THROUGH THAT AREA. PEA SIZE HAIL AND LIGHTNING STRIKES HAVE ALSO BEEN REPORTED AROUND LEBANON MISSOURI. THE HEAVY RAIN WILL CAUSE SOME FLOODING OF STREETS AND LOW AREAS. THE STORMS WERE MOVING TO THE NORTHEAST AT 40 MILES AN HOUR. HUTSELL
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.