Alert archive / Illinois / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 27, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 24, 1993, 4:42 PM CDT for Mercer County, Illinois. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Jun 24, 1993, 4:42 PM CDT (21:42 UTC)
- Expired
- Jun 24, 1993, 5:15 PM CDT
- In force
- 33 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
County Mercer County, IL
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.7 hours before the alert went out and 423 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
- 53 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 1167 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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
Local storm report, Jun 24, 2:20 PM CDT, 2 hours 22 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MOLINE IL
220 PM CDT THU JUN 24 1993
...ATTN SELS...
PRELIMINARY STORM REPORTS FOR JUNE 24 1993...REF WW 492
COUNTY TIME (CDT) EVENT
MERCER IL 1209 PM DISTRICT 7 REPORTED STRONG WINDS EST.
AT 35 MPH AT VIOLA.
HENRY IL 1238 PM GALVA SPOTTER RELAYED REPORT FRM ANOTHER
SPOTTER IN ANDOVER OF WINDS NEAR 50 MPH.
HENRY IL 100 PM DISTRICT 7 REPORTED STRONG WINDS EST. AT
50 MPH KEWANEE.
HENRY IL 148 PM KEWANEE POLICE..SEVERAL LARGE LIMBS TREE
BLOWN DOWN BETWEEN 120 AND 125 PM ON
ELLIOT STREET...NORTH LEXINGTON AND
SOUTH GRACE STREET. NEEDED CHAIN SAW
TO GET THEM REMOVED
DICKEYLocal storm report, Jun 24, 2:23 PM CDT, 2 hours 19 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MOLINE IL
220 PM CDT THU JUN 24 1993
...ATTN SELS...
PRELIMINARY STORM REPORTS FOR JUNE 24 1993...REF WW 492
COUNTY TIME (CDT) EVENT
MERCER IL 1209 PM DISTRICT 7 REPORTED STRONG WINDS EST.
AT 35 MPH AT VIOLA.
HENRY IL 1238 PM GALVA SPOTTER RELAYED REPORT FRM ANOTHER
SPOTTER IN ANDOVER OF WINDS NEAR 50 MPH.
HENRY IL 100 PM DISTRICT 7 REPORTED STRONG WINDS EST. AT
50 MPH KEWANEE.
HENRY IL 148 PM KEWANEE POLICE..SEVERAL LARGE LIMBS TREE
BLOWN DOWN BETWEnEN 120 AND 125 PM ON
ELLIOT STREET...NORTH LEXINGTON AND
SOUTH GRACE STREET. NEEDED CHAIN SAW
TO GET THEM REMOVED
DICKEYSpecial weather statement, Jun 24, 3:20 PM CDT, 1 hour 22 minutes before
IAZ030-041-042-053-054-ILZ001-WIZ018-242115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DUBUQUE IA 320 PM CDT THU JUN 24 1993 ...SEVERE THUNDERSTORM WATCH IS NO LONGER IN EFFECT FOR ANY COUNTIES OF THE TRI-STATES... ...A FLOOD WARNING IS IN EFFECT FOR LOW LYING AREAS OF THE TRI-STATES ALONG THE MISSISSIPPI RIVER... ...A FLASH FLOOD WATCH IS IN EFFECT FOR LAFAYETTE AND GRANT COUNTIES THIS AFTERNOON... AT 310 PM CDT...RADAR INDICATED A LINE OF SHOWERS AND THUNDERSTORMS IN LACROSSE AREA SOUTHWESTWARD TO JUST EAST OF WATERLOO. THIS LINE OF SHOWERS HAS BEEN WEAKENING AND WAS MOVING EASTWARD. THESE SHOWERS WILL MOVE INTO THE WESTERN HALF OF THE TRI-STATES BETWEEN 330 PM AND 40n0 PM CDT. IN THE TRI-STATES AT THIS TIME NO SHOWERS OR THUNDERSTORMS WERE BEING DETECTED. PERSONS WITH RIVER INTERESTS IN THE TRI-STATES SHOULD TAKE PROTECTIVE MEASURES IF IN LOW LYING AREAS ADJACENT TO THE MISSISSIPPI RIVER. ROWLAND
Special weather statement, Jun 24, 3:20 PM CDT, 1 hour 22 minutes before
IAZ030-041-042-053-054-ILZ001-WIZ018-242115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DUBUQUE IA 320 PM CDT THU JUN 24 1993 ...SEVERE THUNDERSTORM WATCH IS NO LONGER IN EFFECT FOR ANY COUNTIES OF THE TRI-STATES... ...A FLOOD WARNING IS IN EFFECT FOR LOW LYING AREAS OF THE TRI-STATES ALONG THE MISSISSIPPI RIVER... ...A FLASH FLOOD WATCH IS IN EFFECT FOR LAFAYETTE AND GRANT COUNTIES THIS AFTERNOON... AT 310 PM CDT...RADAR INDICATED A LINE OF SHOWERS AND THUNDERSTORMS IN LACROSSE AREA SOUTHWESTWARD TO JUST EAST OF WATERLOO. THIS LINE OF SHOWERS HAS BEEN WEAKENING AND WAS MOVING EASTWARD. THESE SHOWERS WILL MOVE INTO THE WESTERN HALF OF THE TRI-STATES BETWEEN 330 PM AND 400 PM CDT. IN THE TRI-STATES AT THIS TIME NO SHOWERS OR THUNDERSTORMS WERE BEING DETECTED. PERSONS WITH RIVER INTERESTS IN THE TRI-STATES SHOULD TAKE PROTECTIVE MEASURES IF IN LOW LYING AREAS ADJACENT TO THE MISSISSIPPI RIVER. ROWLAND
Special weather statement, Jun 24, 3:31 PM CDT, 1 hour 11 minutes before
ILZ004-IAZ078-088-089-099-242100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 330 PM CDT THUN JUN 24 1993 ...STRONG THUNDERSTORMS ARE DEVELOPING IN SOUTHEAST IOWA... AT 330 PM CDT...STRONG THUNDERSTORMS WITH HEAVY RAIN WERE DEVELOPING IN THE SOUTHEAST IOWA COUNTIES OF HENRY...LOUISA...AND FAR WESTERN MUSCATINE. THE STRONGEST OF THESE STORMS WERE IN NORTHEAST HENRY COUNTY NEAR WINFIELD...AND EXTENDED INTO WESTERN LOUISA COUNTY. OTHER STRONG STORMS WERE MOVING INTO THE WEST PORTION OF LEE COUNTY IN EXTREME SOUTHEAST IOWA. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR..AND WERE ALSO DEVELOPING RAPIDLY. NEW STORM DEVELOPMENT WILL BE POSSIBLE JUST ABOUT ANYWHERE ACROSS THE BISTATE REGION. . STRONG STORMS WILL MOVE ACROSS THE IOWA COUNTIES OF MUSCATINE... HENRY...LOUISA...DES MOINES...AND LEE OVER THE NEXT COUPLE OF HOURS. VERY HEAVY RAIN AND SMALL HAIL CAN BE EXPECTED WITH THESE STORMS. LAGUE
Special weather statement, Jun 24, 3:31 PM CDT, 1 hour 11 minutes before
ILZ004-IAZ078-088-089-099-242100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 330 PM CDT THUN JUN 24 1993 ...STRONG THUNDERSTORMS ARE DEVELOPING IN SOUTHEAST IOWA... AT 330 PM CDT...STRONG THUNDERSTORMS WITH HEAVY RAIN WERE DEVELOPING IN THE SOUTHEAST IOWA COUNTIES OF HENRY...LOUISA...AND FAR WESTERN MUSCATINE. THE STRONGEST OF THESE STORMS WERE IN NORTHEAST HENRY COUNTY NEAR WINFIELD...AND EXTENDED INTO WESTERN LOUISA COUNTY. OTHER STRONG STORMS WERE MOVING INTO THE WEST PORTION OF LEE COUNTY IN EXTREME SOUTHEAST IOWA. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR..AND WERE ALSO DEVELOPING RAPIDLY. NEW STORM DEVELOPMENT WILL BE POSSIBLE JUST ABOUT ANYWHERE ACROSS THE BISTATE REGION. . STRONG STORMS WILL MOVE ACROSS THE IOWA COUNTIES OF MUSCATINE... HENRY...LOUISA...DES MOINES...AND LEE OVER THE NEXT COUPLE OF HOURS. VERY HEAVY RAIN AND SMALL HAIL CAN BE EXPECTED WITH THESE STORMS. LAGUE
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 4:10 PM CDT | Tornado Warning | DVN | Henry | 20 min |
| Jun 24, 4:12 PM CDT | Tornado Warning | DVN | Louisa | 33 min |
| Jun 24, 5:55 PM CDT | Flash Flood Warning | DVN | Des Moines | 2 hr |
| Jun 24, 1:06 PM CDT | Severe Thunderstorm Warning | DVN | Henry | 39 min |
| Jun 24, 6:18 PM CDT | Flash Flood Warning | DVN | Rock Island | 4 hr |
Nearby
Severe Thunderstorm Warnings in Illinois, 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.