Alert archive / Missouri / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 52, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Jul 4, 1987, 11:29 AM CDT for Laclede County, Texas County, Wright County, Missouri. It was in force for 76 min.
The area
The counties it named.
The facts
- Issued
- Jul 4, 1987, 11:29 AM CDT (16:29 UTC)
- Expired
- Jul 4, 1987, 12:45 PM CDT
- In force
- 76 min
- Issued by
- NWS Springfield, MO
- Area
- Whole counties
Counties Laclede County, MO, Texas County, MO, Wright 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, 4.5 hours before the alert went out and 141 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
- 2326 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 694 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSGF 041629 SVRSGF MOC091-215-105-229-041745- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SPRINGFIELD MO 1129 AM CDT SAT JUL 4 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTH CENTRAL MISSOURI...NORTHERN HOWELL...TEXAS...LACLEDE AND WRIGHT AT 1130 AM CDT THE LINE OF THUNDERSTORMS MOVING THROUGH SOUTHWEST MISSOURI CONINUTED TO MOVE TO THE EAST AT 40 MPH AND WERE LOCATED FROM LEBANON OR ABOUT 45 MILES NORTHEAST OF SPRINGFIELD TO NEAR WILLOW SPRINGS OR 70 MILES EAST OF SPRINGFIELD. 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. IF THREATNING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE IMMEDIATELY AND RELAY YOUR SEVERE WEATHER REPORT TO THE NEAREST LAW ENFORCEMENT AGENCY.
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, Jul 4, 10:21 AM CDT, 1 hour 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 1020 AM CDT SAT JUL 4 1987 ...SOME WIND DAMAGE STILL BEING REPORTED WITH A LINE OF THUNDERSTORMS PASSING THRU SOUTHWEST MISSOURI. AT 1020 THE HEAVIEST STORMS EXTEND FROM FAIR PLAY IN POLK COUNTY TO WALNUT GROVE IN GREENE COUNTY TO EAST OF CASSVILLE IN BARRY COUNTY. THESE STORMS HAVE CAUSED DAMAGE TO A RESIDENCE AND AROUND 10 AM ANTENNAS WERE REPORTED BLOWN DOWN IN CASSVILLE MISSOpURI. MOVEMENT OF THE LINE CONTINUED TO THE EAST 30 MPH. EASTERN JASPER COUNTY IS PRESENTLY OUT OF DANGER. WARNINGS CONTINUE AS ISSUED FOR OTHER COUNTIES IN SOUTHWEST MISSOURI. NINE
The office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 9:36 AM CDT | Severe Thunderstorm Warning | SGF | Dade, Jasper, Lawrence | 54 min |
| Jul 4, 9:57 AM CDT | Severe Thunderstorm Warning | SGF | Barry | 48 min |
| Jul 4, 9:57 AM CDT | Severe Thunderstorm Warning | SGF | Greene, Polk | 48 min |
| Jul 4, 10:49 AM CDT | Severe Thunderstorm Warning | SGF | Christian, Dallas, Douglas, Webster | 51 min |
| Jul 4, 10:49 AM CDT | Severe Thunderstorm Warning | SGF | Ozark, Taney | 51 min |
| Jul 4, 11:29 AM CDT | Severe Thunderstorm Warning | SGF | Howell | 76 min |
| Jul 4, 12:59 PM CDT | Severe Thunderstorm Warning | SGF | Carter, Oregon, Ripley, Shannon | 46 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; the sounding from the Mesonet's radiosonde archive.