Alert archive / Missouri / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 83, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 30, 1993, 3:51 PM CDT for Ralls County, Missouri. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1993, 3:51 PM CDT (20:51 UTC)
- Expired
- Jun 30, 1993, 4:45 PM CDT
- In force
- 54 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Ralls County, MO
The radar
The St Louis radar (KLSX), 117 km from the middle of the area, began a volume at 20:35 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Springfield, MO (KUMN), launched 12:00Z, 8.9 hours before the alert went out and 354 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
- 1965 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 678 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 161 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KSTL 302053 SVRLSX MOC173-302145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 351 PM CDT WED JUN 30 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST MISSOURI ...RALLS COUNTY AT 345 PM...NWS DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM NEAR CLAPPER IN NORTHEAST MONROE COUNTY...25 MILES WEST SOUTHWEST OF HANNIBAL. MOVEMENT WAS TO THE SOUTHEAST AT 20 MPH. THIS STORM WILL BE MOVING INTO THE GREEN LAWN AND CENTER AREAS BY 415 PM. IF THE STORM MOVES INTO YOUR AREA...MOVE TO SHELTER IMMEDIATELY. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. EHG/DM
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, 11:55 AM CDT, 3 hours 56 minutes before
MOZ001-002-003-004-005-301900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1155 AM CDT WED JUN 30 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MUCH OF NORTHERN MISSOURI UNTIL 700 PM... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR MUCH OF NORTHERN MISSOURI UNTIL 700 PM THIS EVENING. THIS WATCH INCLUDES THE CITIES OF ST JOSEPH...SPICKARD...MARYVILLE...AND KIRKSVILLE. AT 1155 PM...WEATHER SERVICE RADARS SHOWED THUNDERSTORMS DEVELOPING ACROSS PORTIONS OF NORTHWEST MISSOURI. THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS NORTHERN MISSOURI THIS AFTERNOON...SOME POSSIBLY BECOMING SEVERE. AS A REMINDER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PEOPLE LIVING IN NORTHERN MISSOURI SHOULD REMAIN ALERT AND STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA SOURCES FOR FURTHER STATEMENTS AND OR WARNINGS. GLASS
Special weather statement, Jun 30, 1:05 PM CDT, 2 hours 46 minutes before
MOZ004-005-008-009-013-302000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 105 PM CDT WED JUN 30 1993 ...A TORNADO WATCH IS IN EFFECT FOR WEST CENTRAL AND PORTIONS OF NORTHWEST MISSOURI UNTIL 800 PM... THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR WEST CENTRAL MISSOURI AND PORTIONS OF NORTHWEST MISSOURI UNTIL 800 PM THIS EVENING. PORTIONS OF NORTHWEST MISSOURI WHICH WERE IN AN EARLIER SEVERE THUNDERSTORM WATCH HAVE BEEN UPGRADED TO A TORNADO WATCH. THIS WATCH INCLUDES THE CITIES OF ST JOSEPH...THE KANSAS CITY METROPOLITAN AREA AND SEDALIA. A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PEOPLE LIVING IN WEST CENTRAL AND NORTHWEST MISSOURI SHOULD REMAIN ALERT AND STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA SOURCES FOR FURTHER STATEMENTS AND OR WARNINGS. GLASS
Special weather statement, Jun 30, 1:07 PM CDT, 2 hours 44 minutes before
MOZ004-005-008-009-013-302000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 105 PM CDT WED JUN 30 1993 ...A TORNADO WATCH IS IN EFFECT FOR WEST CENTRAL AND PORTIONS OF NORTHWEST MISSOURI UNTIL 800 PM... THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR WEST CENTRAL MISSOURI AND PORTIONS OF NORTHWEST MISSOURI UNTIL 800 PM THIS EVENING. PORTIONS OF NORTHWEST MISSOURI WHICH WERE IN AN EARLIER SEVERE THUNDERSTORM WATCH HAVE BEEN UPGRADED TO A TORNADO WATCH. THIS WATCH INCLUDES THE CITIES OF ST JOSEPH...THE KANSAS CITY METROPOLITAN AREA AND SEDALIA. A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF TORNADOES AND SEVERE THUNDERSTORMS IN ANXD CLOSE TO THE WATCH AREA. PEOPLE LIVING IN WEST CENTRAL AND NORTHWEST MISSOURI SHOULD REMAIN ALERT AND STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA SOURCES FOR FURTHER STATEMENTS AND OR WARNINGS. GLASS
Special weather statement, Jun 30, 3:15 PM CDT, 36 minutes before
MOZ006-009-010-011-013-014-302130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 315 PM CDT WED JUN 30 1993 ...VERY STRONG THUNDERSTORMS HAVE DEVELOPED IN NORTH CENTRAL MISSOURI... AT 315 PM...A CLUSTER OF VERY STRONG THUNDERSTORMS WERE LOCATED JUST WEST AND NORTHEAST OF THE TOWN OF MOBERLY MOVING EAST AT 20 MPH. THE STRONGEST STORM WAS JUST SOUTH OF THE COMMUNITY OF SHELBINA...OR 20 MILES NORTHEAST OF THE CITY OF MOBERLY. STRONG GUSTY WINDS...DANGEROUS LIGHTNING...SMALL HAIL AND DANGEROUS LIGHTNING WILL ACCOMPANY THESE STORMS AS THEY MOVE ACROSS NORTH CENTRAL MISSOURI THIS AFTERNOON. THE CITY OF MOBERLY WILL SEE THE FIRST RAIN AROUND 330 PM...FOLLOWED BY SEVERAL PERIODS OF STORMY WEATHER. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE EXTREME NORTHERN PORTIONS OF MISSOURI...AND A TORNADO WATCH OVER PARTS OF WEST CENTRAL MISSOURI. SEVERE WEATHER DEVELOPMENT IN THE CENTRAL PART OF THE STATE IS ALSO POSSIBLE AND RESIDENTS LIVING CLOSE TO THE WATCH AREAS SHOULD STAY ABREAST OF DEVELOPING WEATHER CONDITIONS AND STAY TUNED TO WEATHER RADIO FOR FURTHER UPDATES OR POSSIBLE WARNINGS. PERLOW : =*K296QJZ/r)zUbZN5J> <y"*~Fbf FN*"j
Special weather statement, Jun 30, 3:26 PM CDT, 25 minutes before
MOZ006-009-010-011-013-014-302130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 315 PM CDT WED JUN 30 1993 ...VERY STRONG THUNDERSTORMS HAVE DEVELOPED IN NORTH CENTRAL MISSOURI... AT 315 PM...A CLUSTER OF VERY STRONG THUNDERSTORMS WERE LOCATED JUST WEST AND NORTHEAST OF THE TOWN OF MOBERLY MOVING EAST AT 20 MPH. THE STRONGEST STORM WAS JUST SOUTH OF THE COMMUNITY OF SHELBINA...OR 20 MILES NORTHEAST OF THE CITY OF MOBERLY. STRONG GUSTY WINDS...DANGEROUS LIGHTNING...SMALL HAIL AND DANGEROUS LIGHTNING WILL ACCOMPANY THESE STORMS AS THEY MOVE ACROSS NORTH CENTRAL MISSOURI THIS AFTERNOON. THE CITY OF MOBERLY WILL SEE THE FIRST RAIN AROUND 330 PM...FOLLOWED BY SEVERAL PERIODS OF STORMY WEATHER. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE EXTREME NORTHERN PORTIONS OF MISSOURI...AND A TORNADO WATCH OVER PARTS OF WEST CENTRAL MISSOURI. SEVERE WEATHER DEVELOPMENT IN THE CENTRAL PART OF THE STATE IS ALSO POSSIBLEt AND RESIDENTS LIVING CLOSE TO THE WATCH AREAS SHOULD STAY ABREAST OF DEVELOPING WEATHER CONDITIONS AND STAY TUNED TO WEATHER RADIO FOR FURTHER UPDATES OR POSSIBLE WARNINGS. PERLOW
Special weather statement, Jun 30, 3:31 PM CDT, 20 minutes before
MOZ006-009-010-011-013-014-302130- SPECIAL WEATHER STATEMENT...CORRECTION IN TEXT NATIONAL WEATHER SERVICE COLUMBIA MO 315 PM CDT WED JUN 30 1993 ...VERY STRONG THUNDERSTORMS HAVE DEVELOPED IN NORTH CENTRAL MISSOURI... AT 315 PM...A CLUSTER OF VERY STRONG THUNDERSTORMS WERE LOCATED JUST WEST AND NORTHEAST OF THE TOWN OF MOBERLY MOVING EAST AT 20 MPH. THE STRONGEST STORM WAS JUST SOUTH OF THE COMMUNITY OF SHELBINA...OR 20 MILES NORTHEAST OF THE CITY OF MOBERLY. STRONG GUSTY WINDS...DANGEROUS LIGHTNING...SMALL HAIL...AND HEAVY DOWNPOURS WILL ACCOMPANY THESE STORMS AS THEY MOVE ACROSS NORTH CENTRAL MISSOURI THIS AFTERNOON. THE CITY OF MOBERLY WILL SEE THE FIRST RAIN AROUND 330 PM...FOLLOWED BY SEVERAL PERIODS OF STORMY WEATHER. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE EXTREME NORTHERN PORTIONS OF MISSOURI...AND A TORNADO WATCH OVER PARTS OF WEST CENTRAL MISSOURI. SEVERE WEATHER DEVELOPMENT IN THE CENTRAL PART OF THE STATE IS ALSO POSSIBLE AND RESIDENTS LIVING CLOSE TO THE WATCH AREAS SHOULD STAY ABREAST OF DEVELOPING WEATHER CONDITIONS AND STAY TUNED TO WEATHER RADIO FOR FURTHER UPDATES OR POSSIBLE WARNINGS. PERLOW
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 4:20 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson | 40 min |
| Jun 30, 4:50 AM CDT | Severe Thunderstorm Warning | LSX | Washington | 40 min |
| Jun 30, 5:23 AM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 52 min |
| Jun 30, 3:17 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Shelby | 43 min |
| Jun 30, 4:13 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 32 min |
| Jun 30, 4:55 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 50 min |
| Jun 30, 5:24 PM CDT | Tornado Warning | LSX | Lincoln | 66 min |
| Jun 30, 5:24 PM CDT | Tornado Warning | LSX | Pike | 43 min |
| Jun 30, 6:25 PM CDT | Tornado Warning | LSX | Lincoln | 38 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1993Every severe thunderstorm warning in 1993
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; radar from the NEXRAD Level II archive.