Alert archive / Illinois / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 48, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 7, 1987, 3:39 PM CDT for Bond County, Clinton County, Illinois. It was in force for 36 min.
The area
The counties it named.
The facts
- Issued
- Jul 7, 1987, 3:39 PM CDT (20:39 UTC)
- Expired
- Jul 7, 1987, 4:15 PM CDT
- In force
- 36 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Bond County, IL, Clinton County, IL
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
Salem-Leckrone, IL (KSLO), launched 12:00Z, 8.7 hours before the alert went out and 47 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
- 29 J/kg
- Mixed-layer CIN
- -389 J/kg
- Mixed-layer LCL
- 1337 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 49 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 072042
SVRSTL
ILC005-027-072115-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
339 PM CDT TUE JUL 7 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 415 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF
SOUTHWEST ILLINOIS...
CLINTON AND SOUTHEAST BOND
AT 335 PM CDT A SEVERE THUNDERSTORM WAS JUST EAST OF GREENVILLE
ILLINOIS...15 MILES SOUTHWEST OF VANDALIA...ANOTHER WS JUST NORTH
OF BREESE ILLINOIS... 40 MILES EAST OF ST. LOUIS. THEY WERE MOVING
SOUTHEAST AT 15 MPH. 60 MPH WINDS WERE REPORTED AT GREENVILLE
ILLINOIS AT 335 PM.
BE ALERT FOR DAMAGING WIND...LARGE HAIL AND FREQUENT LIGHT!NING. STAY
INDOORS AWAY FROM WINDOWS. AVOID USING THE TELEPHONE AND ELECTRIC
APPLIANCES. BE ALERT FOR FLOODING OF STREAMS AND LOW AREAS.
MCCARTHYWhat 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 7, 1:13 PM CDT, 2 hours 26 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION FOR MOVEMENT OF STORMS... NATIONAL WEATHER SERVICE COLUMBIA MO 104 PM CDT TUE JUL 7 1987 ...VERY STRONG THUNDERSTORMS MOVING THROUGH CENTRAL MISSOURI... AT 104 PM CDT A 20 MILE WIDE LINE OF VERY STRONG THUNDERSTORMS WITH EXTREMELY HEAVY RAIN..GUSTY WINDS OF 40 TO 50 MPH AND FREQUENT DANGEROUS LIGHTNING EXTENDED FROM 20 MILES NORTHWEST OF COLUMBIA TO 15 MILES WEST OF COLUMBIA TO 70 MILES SOUTHWEST OF COLUMBIA. THE STORMS WERE MOVING EAST AT 25 MPH AND WILL BE MOVING THROUGH THE COLUMBIA AREA BETWEEN 115 AND 215PM. HEAVY RAIN WILL REDUCE VISIBILITIES TO NEAR ZERO AND CAUSE LOCAL FLOODING OF LOW LYING AREAS...SMALL CREEKS AND STREAMS AND ROADWAYS. MOTORISTS SHOULD EXERCISE CAUTION AND NOT ATTEMPT TO CROSS FLOODED LOW WATER BRIDGES. NO SEVERE WEATHER WAS INDICATED AT 1PM BUT RESIDENTS OF CENTRAL MISSOURI SHOULD REMAIN ABREAST OF THE WEATHER SITUATION AS THE STORMS MAY CONTINUE TO INTENSIFY OVER CENTRAL MISSOURI THIS AFTERNOON. HAGEMEYER
Special weather statement, Jul 7, 1:47 PM CDT, 1 hour 52 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 140 PM CDT TUE JUL 7 1987 AT 130 PM CDT...A NARROW BAND OF STRONG THUNDERSTORMS WAS MOVING THROUGH EAST CENTRAL MISSOURI. THIS BAND EXTENDED FROM NEAR ST CHARLES TO UNION. AS THESE STORMS PASSED THE WEATHER SERVICE OFFICE AROUND 125 PM ABOUT ONE INCH OF RAIN FELL IN 30 MINUTES. PEA SIZE HAIL ALSO ACCOMPANIED THESE STORMS. THEY WILL MOVE THROUGH DOWNTOWN ST LOUIS BETWEEN 145 AND 3 PM. THESE STORMS WERE PART OF AN AREA OF SCATTERED SHOWERS AND THUNDERSTORMS COVERING PARTS OF THE NORTHERN HALF OF MISSOURI AND WEST CENTRAL ILLINOIS. THE RAIN WAS MOVING TO THE SOUTHEAST AT 15 MILES AN HOUR. HUTSELL
Special weather statement, Jul 7, 2:07 PM CDT, 1 hour 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 200 PM CDT TUE JUL 7 1987 ...STRONG THUNDERSTORMS CONTINUE MOVING THROUGH CENTRAL MISSOURI... AT 155 PM A LARGE AREA OF NUMEROUS SHOWERS AND STRONG THUNDERSTORMS WAS OVER MUCH OF CENTRAL MISSOURI. THE STRONGEST STORMS WERE IN SOUTH CENTRAL PARTS OF THE AREA AROUND ELDON AND THE LAKE OF THE OZARKS OR ABOUT 30 TO 40 MILES SOUTHWEST OF JEFFERSON CITY. THE THUNDERSTORM AREA WAS MOVING SOUTHEAST AT ABOUT 25 MPH. HEAVY RAIN WILL REDUCE VISIBILITIES TO NEAR ZERO AND MAY CAUSE LOCAL FLOODING OF LOW LYING AREAS...SMALL CREEKS AND STREAMS AND ROADWAYS. MOTORISTS SHOULD EXERCISE CAUTION AND NOT ATTEMPT TO CROSS FLOODED LOW WATER BRIDGES. NO SEVERE WEATHER WAS INDICATED AT 2PM BUT GUSTY WINDS OF 30 TO 40 MPH MAY ACCOMPANY SOME OF THESE STORMS AONG WITH THE HEAVY RAINS AND DANGEROUS LIGHTNING. LARM
Special weather statement, Jul 7, 2:46 PM CDT, 53 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 245 PM CDT TUE JUL 7 1987 AT 235 PM CDT...A BAND OF STRONG THUNDERSTORMS STRETCHED FROM THE LAKE OF THE OZARKS IN SOUTH CENTRAL MISSOURI THROUGH DOWNTOWN SAINT LOUIS INTO SOUTHERN ILLINOIS. THESE STORMS WILL PRODUCE VERY HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS AS THEY MOVE TO THE SOUTHEAST AT 15 MILES AN HOUR. OTHER NUMEROUS SHOWERS AND THUNDERSTORMS WERE OVER MUCH OF CENTRAL MISSOURI...FROM 30 MILES SOUTH OF KIRKSVILLE THROUGH COLUMBIA TO NEAR FORT LEONARD WOOD. THE RAIN WAS MOVING TO THE SOUTHEAST AT 15 MILES AN HOUR. HUTSELL
Special weather statement, Jul 7, 3:07 PM CDT, 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 300 PM CDT TUE JUL 7 1987 ...STRONG THUNDERSTORMS MOVING THROUGH SOUTH CENTRAL MISSOURI... AT 255 PM A LINE OF STRONG THUNDERSTORMS WAS MOVING THROUGH SOUTH PATS OF CENTRAL MISSOURI IN A 30 MILE WIDE AREA FROM AROUND HERMITAGE.. OR ABOUT 40 MILES NORTH OF SPRINGFIELD..TO ROLLA. THE LINE OF THUNDER- STORMS WAS MOVING SOUTHEAST AT ABOUT 25 MPH. HEAVY RAIN WILL REDUCE VISIBILITIES TO NEAR ZERO AND MAY CAUSE LOCAL FLOODING OF LOW LYING AREAS...SMALL STREAMS AND ROADWAYS. MOTORISTS SHOULD EXERCISE CAUTION AND NOT ATTEMPT TO CROSS FLOODED LOW WATER BRIDGES. NO SEVERE WEATHER WAS INDICATED AT 3PM BUT GUSTY WINDS OF 30 TO 40 MPH MAY ACCOMPANY SOME OF THESE STORMS ALONG WITH THE HEAVY RAINS AND DANGEROUS LIGHTNING. LARM
Special weather statement, Jul 7, 3:25 PM CDT, 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 325 PM CDT TUE JUL 7 1987 ...SEVERE THUNDERSTORM WATCH TIL 9 PM FOR MUCH OF SOUTH AND EAST CENTRAL MISSOURI AND SOUTHERN ILLINOIS... AT 320 PM A LINE OF VERY STRONG THUNDERSTORMS STRETCHED FROM JUST WEST OF VANDALIA ILLINOIS...60 MILES EAST OF ST. LOUIS...THROUGH BELLEVILLE ILLINOIS...ACROSS JEFFERSON COUNTY MISSOURI...SOUTH OF ST. LOUIS...TO ROLLA MISSOURI. THE STORMS WERE MOV ING SOUTHEAST AT 15 MPH AND WILL PRODUCE BRIEF VERY HEAVY RAIN...STRONG WINDS AND POSSIBLY HAIL. NO REPORTS OF SEVERE WEATHER HAVE BEEN RECEIVED ALONG THIS LINE OF STORMS AS OF 315 PM. MCCARTHY
Nearby
Severe Thunderstorm Warnings in Illinois, 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.