Alert archive / Illinois / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 45, NWS St. Louis, MO

May 25, 1989Greene County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at May 25, 1989, 8:50 AM CDT for Greene County, Illinois. It was in force for 55 min.

The area

The counties it named.

The facts

Issued: May 25, 1989, 8:50 AM CDT (13:50 UTC)
Expired: May 25, 1989, 9:45 AM CDT
In force: 55 min
Issued by: NWS St. Louis, MO
Area: Whole counties

County Greene 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

Peoria Regional, IL (KPIA), launched 12:00Z, 1.8 hours before the alert went out and 161 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 14 J/kg
Mixed-layer CIN: -743 J/kg
Mixed-layer LCL: 1108 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KSTL 251350
SVRSTL
ILC013-061-149-MOC163-251445-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
850 AM CDT THU MAY 25 1989
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  945 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTHWEST ILLINOIS
          ...NORTHERN CALHOUN...GREENE
IN WEST CENTRAL ILLINOIS
          ...SOUTHERN PIKE
IN EAST CENTRAL MISSOURI
          ...PIKE
 
AT 850 CDT A SEVERE THUNDERSTORM WAS LOCATED IN WESTERN RALLS COUNTY
OR ABOUT 10 MILES SOUTHWEST OF HANNIBAL. THIS THUNDERSTORM WAS MOVING
TO THE EAST AT 50 MPH. THE STORM CONTAINS LARGE HAIL AND DAMAGING
WIND.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS Q^UICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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, May 25, 2:50 AM CDT, 6 hours before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE SAINT LOUIS MO
245 AM CDT THU MAY 25 1989

...SEVERE THUNDERSTORM WATCH NUMBER 324 HAS BEEN CANCELLED FOR
   MISSOURI...

AT 230 AM CDT...THUNDERSTORMS SOME WITH HAIL..GUSTY WINDS AND
HEAVY RAIN..STRETCHED FROM EAST MISSOURI 20 MILES EAST OF
ST CHARLES MISSOURI INTO EAST CENTRAL ILLINOIS NEAR CHAMPAIGN.

THE STRONGER STORMS WERE IN AN AREA ALTON ILLINOIS AND MATTOON
ILLINOIS.

THE STORMS WERE MOVING TO THE EAST AT 30 MILES AN HOUR.
FMD

Special weather statement, May 25, 5:51 AM CDT, 2 hours 59 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAINT LOUIS MO
600 AM CDT THU MAY 25 1989

...SEVERE WEATHER OUTLOOK...

THERE IS A MODERATE RISK FOR SEVERE THUNDERSTORMS ACROSS THE
SOUTHERN HALF OF THE STATE TODAY AND TONIGHT.

VERY WARM..MOIST AND UNSTABLE AIR PERSISTS ACROSS SOUTHERN MISSOURI
THIS MORNING.  COOLER AND DRIER AIR COVERED THE NORTHWEST SECTIONS
OF THE STATE.  THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG THIS
BOUNDRY TODAY AND CONTINUE INTO THE NIGHT.

BEST CHANCE FOR SEVERE WEATHER WILL BE FROM LATE THIS AFTERNOON
INTO THIS EVENING.  STRONG THUNDERSTORMS ARE EXPECTED TO DEVELOP
OVER CENTRAL MISSOURI AND ILLINOIS AND SINK SOUTHEAST INTO SOUTHERN
SECTIONS OF MISSOUR^I ILLINOIS AND INDIANA TONIGHT.

Special weather statement, May 25, 7:08 AM CDT, 1 hour 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
710 AM CDT THU MAY 25 1989

...VERY STRONG THUNDERSTORMS MOVING ACROSS NORTHWESTERN SECTIONS
OF CENTRAL MISSOURI THIS MORNING...

AT 700AM VERY STRONG THUNDERSTORMS WERE LOCATED 30 MILES SOUTHWEST OF
KIRKSVILLE NEAR LACLEDE...AND 50 MILES SOUTHWEST OF KIRKSVILLE NEAR SUMNER.
THE THUNDERSTORMS CONTAIN HEAVY RAIN..VERY DANGEROUS LIGHTNING..ALONG
WITH THE POSSIBILITY OF SMALL HAIL AND BRIEF STRONG GUSTY WIND. THE
THUNDERSTORMS WERE MOVING EAST AT 40 MILES AN HOUR...AND
WILL BE ENTERING CHARITON COUNTY BY 715 AM...AND BY 745 AM WILL BE
IN NORTHERN RANDOLPH AND MACON COUNTIES.
AL

Special weather statement, May 25, 7:43 AM CDT, 1 hour 7 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE SAINT LOUIS MO
740 AM CDT THU MAY 25 1989

...SEVERE THUNDERSTORM WATCH UNTIL 1PM CDT..

AT 730 AM CDT...STRONG THUNDERSTORMS..SOME WITH GUSTY WINDS..HAIL
AND VERY HEAVY RAIN STRETCHED FROM WEST CENTRAL INTO NORTHEAST
MISSOURI.

THE STORMS WERE LOCATED NEAR KIRKSVILLE MISSOURI..JUST WEST OF
MACON MISSOURI AND ONE 30 MILES EAST OF KANSAS CITY MISSOURI.

THE STORMS WERE MOVING TO THE EAST AT 35 MILES AN HOUR.

RADAR...SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP INTO
CENTRAL AND EAST MISSOURI DURING THE MORNING.
FMD

Special weather statement, May 25, 7:49 AM CDT, 1 hour 1 minute before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE SAINT LOUIS MO
740 AM CDT THU MAY 25 1989

...SEVERE THUNDERSTORM WATCH UNTIL 1PM CDT..

AT 730 AM CDT...STRONG THUNDERSTORMS..SOME WITH GUSTY WINDS..HAIL
AND VERY HEAVY RAIN STRETCHED FROM WEST CENTRAL INTO NORTHEAST
MISSOURI.

THE STORMS WERE LOCATED NEAR KIRKSVILLE MISSOURI..JUST WEST OF
MACON MISSOURI AND ONE 30 MILES EAST OF KANSAS CITY MISSOURI.

THE STORMS WERE MOVING TO THE EAST AT 35 MILES AN HOUR.

RADAR NOWCAST...SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP
INTO CENTRAL AND EAST MISSOURI DURING THE MORNING.
FMD

Special weather statement, May 25, 8:43 AM CDT, 7 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE SAINT LOUIS MO
840 AM CDT THU MAY 25 1989

SEVERE THUNDERSTORM WATCH UNTIL 1PM CDT FOR MOST OF CENTRAL MISSOURI

AT 832AM CDT...THUNDERSTORMS WITH VERY HEAVY RAIN..GUSTY WINDS AND
SOME HAIL WERE OCCURRING IN CENTRAL MISSOURI.

THE STRONGEST STORMS WERE WEST OF COLUMBIA NEAR BOONVILLE AND WEST OF
HANNIBAL NEAR SHELBINA.

THE STORMS WERE MOVING TO THE EAST AT 45 MILES AN HOUR.
T
SOME DAMAGING WINDS HAVE BEEN REPORTED WITH BOTH STORMS.
WIPFLER

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 12:54 AM CDT	Severe Thunderstorm Warning	LSX	Pike, Scott	36 min
May 25, 1:15 AM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene	45 min
May 25, 8:50 AM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Pike	55 min
May 25, 9:52 AM CDT	Severe Thunderstorm Warning	LSX	Greene	38 min
May 25, 10:59 AM CDT	Severe Thunderstorm Warning	LSX	Monroe	31 min
May 25, 12:46 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene	44 min
May 25, 2:33 PM CDT	Tornado Warning	LSX	Effingham, Fayette	27 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1989 Every severe thunderstorm warning in 1989

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.