Alert archive / Missouri / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 40, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Jun 22, 1987, 6:09 PM CDT for Polk County, Missouri. It was in force for 51 min.
The area
The counties it named.
The facts
- Issued
- Jun 22, 1987, 6:09 PM CDT (23:09 UTC)
- Expired
- Jun 22, 1987, 7:00 PM CDT
- In force
- 51 min
- Issued by
- NWS Springfield, MO
- Area
- Whole counties
County Polk 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, 11.2 hours before the alert went out and 87 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
- 1798 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 602 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSGF 222309 SVRSGF MOC167-230000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SPRINGFIELD MO 609 PM CDT MON JUN 22 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 700 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTHWEST MISSOURI...NORTHERN POLK AT 605 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES NORTHWEST OF BOLIVAR MISSOURI...OR 40 MILES NORTHWEST OF SPRINGFIELD MISSOURI MOVING NORTHEAST 25 MPH. THIS THUNDERSTORM WILL MOVE ACROSS POMME DE TERRE LAKE BY 630. BOATERS ON LAKES SHOULD MOVE TO SHELTER IMMEDIATELY. REMEMBER A SEVERE THUNDERSTORM PRODUCES DAMAGING WINDS IN EXCESS OF 60 MPH..LARGE HAIL..DEADLY LIGHTNING..AND HEAVY RAINS THAT CAN QUICKLY FLOOD LOW AREAS. THESE STORMS CAN AND OCCASIONALY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING..SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO A PLACE OF SAFETY IF ONE IS SPOTTED. CAMPERS ALONG CREEKS AND STREAMS SHOULD MOVE TO HIGHER GROUND. .ALL WARNINGS... IF THREATNING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE IMMEDIATELY AND RELAY YOUR SEVERE WEATHER REPORT TO THE NEAREST LAW ENFORCEMENT AGENCY> LEE
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 22, 12:40 PM CDT, 5 hours 29 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 1235 PM CDT MON JUN 22 1987 ...VERY STRONG THUNDERSTORM SOUTH CENTRAL MISSOURI MOVING INTO SHANNON COUNTY... AT 1235 PM CDT RADAR INDICATED A VERY STRONG THUNDERSTORM NEAR SUMMERSVILLE...15 MILES SOUTHEAST OF HOUSTON MISSOURI...MOVING EAST 15 MILES AN HOUR. THIS THUNDERSTORM WILL MOVE INTO SHANNON COUNTY BY 100 PM HEADING TOWARD THE TOWN OF EMMINENCE. PEOPLE NEAR THIS THUNDERSTORM SHOULD EXPECT STRONG GUSTY WIND AND HAIL. TO REPORT SEVERE WEATHER CONTACT THE NEAREST LAW ENFORCEMENT OFFICE. LEE
Special weather statement, Jun 22, 5:03 PM CDT, 1 hour 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 500 PM CDT MON JUN 22 1987 ...STRONG THUNDERSTORMS ALONG THE KANSAS MISSOURI BORDER... RADAR AT 455 PM CDT INDICATED A LINE OF THUNDERSTORMS NEAR THE KANSAS MISSOURI BORDER. THE STRONGEST THUNDERSTORM IN THE LINE WAS 20 MILES SOUTHWEST OF NEVADA MISSOURI MOVING NORTHEAST 25 MPH. THIS THUNDERSTORM WILL MOVE ACROSS VERNON COUNTY AND THE CITY OF NEVADA BY 530. IF THE INTENSITY OF THIS THUNDERSTORM CONTINUES TO INCREASE IT COULD BECOME SEVERE. PEOPLE NEAR THIS THUNDERSTORM AS IT TRACKS NORTHEASTWARD SHOULD EXPECT HAIL...GUSTY WIND AND HEAVY RAIN. LEE
Special weather statement, Jun 22, 5:37 PM CDT, 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 535 PM CDT MON JUN 22 1987 ...THUNDERSTORMS BUILDING RAPIDLY OVER SOUTHWEST MISSOURI... RADAR AT 530 PM INDICATED AN INTENSE THUNDERSTORM 10 MILES SOUTH OF REEDS SPRING MISSOURI IN STONE COUNTY...40 MILES SOUTH SOUTHWEST OF SPRINGFIELD. THE THUNDERSTORM WAS MOVING NORTHEAST 25 MPH. THIS THUNDERSTORM WAS PRODUCING MARBLE SIZE HAIL AND COVERING THE GROUND AT 525 PM. THIS THUNDERSTORM WILL MOVE INTO WESTERN TANEY AND SOUTHERN CHRISTIAN COUNTIES BY 545 PM. PEOPLE IN THESE AREAS SHOULD BY PREPARED TO MOVE TO A PLACE OF SAFETY IF A WARNING IS ISSUED. LEE
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.