Alert archive / Missouri / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 22, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 30, 1987, 5:46 PM CDT for Crawford County, Missouri. It was in force for 44 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
- Jun 30, 1987, 5:46 PM CDT (22:46 UTC)
- Expired
- Jun 30, 1987, 6:30 PM CDT
- In force
- 44 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Crawford 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 |
|---|---|---|---|
| Jun 30, 6:20 PM CDT | Thunderstorm Wind 0 | Crawford, 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
Salem-Leckrone, IL (KSLO), launched 12:00Z, 10.8 hours before the alert went out and 223 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 52 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 302246 SVRSTL MOC055-302330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SAINT LOUIS MO 546 PM CDT TUE JUN 30 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF EAST CENTRAL MISSOURI...NORTHERN CRAWFORD AT 543 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR CUBA MISSOURI OR 35 MILES SOUTHEAST OF JEFFERSON CITY MOVING EAST AT 15 MPH. SEVERE THUNDERSTORMS WILL PRODUCE DAMAGING WINDS..LARGE HAIL AND DEADLY LIGHTNING. HEAVY RAINS WILL QUICKLY FLOOD SMALL STREAMS AND LOW LYING AREAS. THESE STORMS CAN PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING. BE PREPARED TO MOVE TO A PLACE OF SAFETY IF ONE IS SPOTTED.
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, Jun 30, 3:45 PM CDT, 2 hours 1 minute before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 340 PM CDT TUE JUN 30 1987 AT 330 PM CDT...VERY STRONG THUNDERSTORMS WERE FORMED IN A NARROW BAND BETWEEN ST. LOUIS AND MATOON ILLINOIS...ABOUT 90 MILES NORTHEAST OF ST. LOUIS. THESE STORMS WILL PRODUCE EXTREMELY HEAVY RAIN THAT WILL REDUCE VISIBILITY FOR MOTORISTS AND CAUSE SOME TEMPORARY FLOODING OF STREETS AND LOW LYING AREAS. THEY COULD ALSO PRODUCE STRONG...GUSTY WINDS AND HAIL AS THEY MOVE NORTHEAST AT 15 MPH. OTHER VERY STRONG THUNDERSTORMS WERE IN SOUTHEAST MISSOURI AND EXTREME SOUTHERN ILLINOIS...FROM BETWEEN POPLAR BLUFF AND CLEARWATER LAKE...THROUGH THE CAPE GIRARDEAU AREA INTO TH7E SOUTHERN TIP OF ILLINOIS. SHOWERS AND THUNDERSHOWERS OF LESSER INTENSITY COVERED MUCH OF CENTRAL ILLINOIS...AND NORTHEAST AND CENTRAL MISSOURI. THEY WERE ALL MOVING NORTHEAST AT 15 MPH. MCCARTHY
Special weather statement, Jun 30, 5:05 PM CDT, 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 5 PM CDT TUE JUN 30 1987 ...STRONG THUNDERSTORMS OVER SOUTH CENTRAL MISSOURI... AT 458 PM CDT STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE LOCATED 25 MILES NORTHEAST OF WAYNESVILLE OR 10 MILES NORTH OF ROLLA AND 10 MILES NORTHWEST OF WAYNESVILLE. THE STORMS WERE MOVING EAST NORTHEAST AT 20 MPH AND MAY CAUSE SOME LOCALIZED FLOODING OF LOW LYING AREAS...STREETS AND ROADWAYS IN PULASKI AND SOUTHERN MARIES COUNTY AS THEY MOVE OVER THE SAME GROUND BETWEEN 5PM AND 630 PM THIS EVENING. HAGEMEYER
Special weather statement, Jun 30, 5:27 PM CDT, 19 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 510 PM CDT TUE JUN 30 1987 SEVERE THUNDERSTORM WATCH FOR EXTREME SOUTHEAST MISSOURI UNTIL 11 PM AT 505 A VERY INTENSE THUNDERSTORM WAS LOCATED JUST NORTHEAST OF ROLLA IN PHELPS COUNTY OR ABOUT 25 MILES SOUTHEAST OF JEFFERSON CITY MISSOURI. THE STORM IS MOVING NORTHEAST AT 15 MPH AND SHOULD MOVE THROUGH NORTHEAST PHELPS..NORTHWEST CRAWFORD..SOUTHEAST MARIES AND SOUTHWEST GASCONADE COUNTIES IN EAST CENTRAL MISSOURI. VERY HEAVY RAIN STRONG GUSTY WINDS AND HAIL CAN BE EXPECTED WITH THIS STORM BETWEEN 5 AND 6 PM. OTHER STRONG THUNDERSTORMS WERE LOCATED JUST NORTHWEST OF DESOTO OR ABOUT 35 MILES SOUTHWEST OF ST LOUIS...ALSO NEAR TRENTON ILLINOIS OR 45 MILES EAST OF ST LOUIS AND NEAR VANDALIA ILLINOIS OR ABOUT 70 MILES NORTHEAST OF ST LOUIS. HEAVY RAIN...AND STRONG WINDS ARE ASSOCIATED WITH THESE STORMS. HAMILTON.
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 6:22 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 38 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.