Alert archive / Iowa / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 9, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Apr 15, 1994, 12:16 AM CDT for Jones County, Iowa. It was in force for 29 min.
The area
The counties it named.
The facts
- Issued
- Apr 15, 1994, 12:16 AM CDT (05:16 UTC)
- Expired
- Apr 15, 1994, 12:45 AM CDT
- In force
- 29 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
County Jones County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 5.3 hours before the alert went out and 363 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2199 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDBQ 150516 SVRDBQ IAC105-150545- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DUBUQUE IA 1216 AM CDT FRI APR 15 1994 THE NATIONAL WEATHER SERVICE IN DUBUQUE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST IOWA ...JONES COUNTY AT 1215 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM NEAR MARTELLE IN JONES COUNTY...45 MILES SOUTHWEST OF DUBUQUE. THE STORM WAS MOVING NORTHEAST AT 25 MILES AN HOUR. SOME CITIES IN THE PATH OF THIS STORM ARE MARTELLE...FAIRVIEW AND ANAMOSA. THESE CITIES WILL BE AFFECTED BETWEEN THE HOURS OF 1215 AM AND 1245 AM CDT. IF YOU ARE IN THE PATH OF THIS STORM TAKE 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. HOOPER NNNN
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, Apr 14, 9:47 PM CDT, 2 hours 29 minutes before
ILZ009-015-016-024-IAZ065>068-078-088-089-099-150500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 945 PM CDT THU APR 14 1994 ...A TORNADO WATCH IS IN EFFECT FOR HENRY AND LEE COUNTIES IN IOWA... AT 945 PM...SCATTERED THUNDERSTORMS WERE DEVELOPING JUST SOUTH OF BURLINGTON AND OVER CEDAR COUNTY IN IOWA. THESE STORMS WERE MOVING NORTH AND NORTHEAST AT 40 MPH. THESE STORMS WILL BE INCREASING IN INTENSITY AND COVERAGE IN THE NEXT FEW HOURS. KEEP A WATCHFUL EYE TO THE SKY AND LISTEN TO LATER STATEMENTS ON NOAA WEATHER RADIO STATION WXJ-73 MOLINE...ILLINOIS OR YOUR FAVORITE RADIO OR TV STATION. J NOEL
Special weather statement, Apr 14, 10:14 PM CDT, 2 hours 2 minutes before
ILZ009-015-016-024-IAZ065>068-078-088-089-099-150400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 1010 PM CDT THU APR 14 1994 ...A TORNADO WATCH IS IN EFFECT FOR HENRY AND LEE COUNTIES IN IOWA... AT 1005 PM...A VERY STRONG THUNDERSTORM HAD DEVELOPED IN HENDERSON COUNTY ILLINOIS NEAR OQUAWKA. THIS STORM WAS MOVING NORTHEAST AT 50 MILES AN HOUR AND SHOULD MOVE INTO MERCER COUNTY IN THE NEXT 15 MINUTES. THIS STORM SHOULD REACH VIOLA ILLINOIS AROUND 1030 PM. THIS STORM WILL LIKELY CONTAIN STRONG WINDS TO 50 MPH...PEA-SIZED TO MARBLE-SIZED HAIL...AND HEAVY RAINS. NO STORMS WERE IN HENRY OR LEE COUNTIES IN IOWA YET BUT COULD DEVELOP AT ANY TIME. THE POTENTIAL FOR SEVERE WEfATHER REMAINS STRONG...SO STAY TUNED TO NOAA WEATHER RADIO...TV...OR OTHER RADIO STATIONS FOR FURTHER STATEMENTS OR WARNINGS. T MEYER
Special weather statement, Apr 14, 10:35 PM CDT, 1 hour 41 minutes before
ILZ009-015-016-024-IAZ065>068-078-088-089-099-150400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 1030 PM CDT THU APR 14 1994 ...A TORNADO WATCH IS IN EFFECT FOR HENRY AND LEE COUNTIES IN IOWA... ...THUNDERSTORMS DEVELOPING IN THE ILLINOIS BISTATE... AT 1025 PM CDT...THE VERY STRONG STORM THAT MOVED OUT OF HENDERSON COUNTY ILLINOIS TO NEAR VIOLA ILLINOIS...OR ABOUT 25 MILES SOUTH OF THE QUAD CITIES. OTHER THUNDERSTORMS HAD DEVELOPED NEAR PORT BYRON ILLINOIS...OR 15 MILES NORTHEAST OF THE QUAD CITIES. ALL STORMS WERE MOVING NORTHEAST AT 45 MILES AN HOUR AND LIKELY CONTAIN GUSTY WINDS...SMALL HAIL...AND ALTHOUGH A TORNADO WATCH REMAINS IN EFFECT FOR HENRY AND LEE COUNTIES IN IOWA...NO THUNDERSTORMS HAD DEVELOPED IN SOUTHEAST IOWA YET. HOWEVER... THE POTENTIAL FOR SEVERE WEATHER REMAINS HIGH. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE TV OR RADIO STATION FOR FURTHER STATEMENTS OR WARNINGS. T MEYE
Special weather statement, Apr 14, 10:41 PM CDT, 1 hour 35 minutes before
ILZ009-015-016-024-IAZ065>068-078-088-089-099-150400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 1030 PM CDT THU APR 14 1994 ...A TORNADO WATCH IS IN EFFECT FOR HENRY AND LEE COUNTIES IN IOWA... ...THUNDERSTORMS DEVELOPING IN THE ILLINOIS BISTATE... AT 1025 PM CDT...THE VERY STRONG STORM IN HENDERSON COUNTY ILLINOIS HAD MOVED TO NEAR VIOLA ILLINOIS...OR ABOUT 25 MILES SOUTH OF THE QUAD CITIES. OTHER THUNDERSTORMS HAD DEVELOPED NEAR PORT BYRON ILLINOIS...OR 15 MILES NORTHEAST OF THE QUAD CITIES AND IN NORTHERN SCOTT COUNTY IOWA... ABOUT 15 MILES NORTH OF THE QUAD CITIES. THESE STORMS LIKELY CONTAIN GUSTY WINDS...PEA- TO MARBLE-SIZED HAIL...AND HEAVY RAINS. ALTHOUGH A TORNADO WATCH REMAINS IN EFFECT FOR HENRY AND LEE COUNTIES IN IOWA...NO THUNDERSTORMS HAD DEVELOPED IN SOUTHEAST IOWA YET. HOWEVER... THE POTENTIAL FOR SEVERE WEATHER REMAINS HIGH. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE TV OR RADIO STATION FOR FURTHER STATEMENTS OR WARNINGS. T MEYER...CORRECTED AND UPDATED STATEMENT
Special weather statement, Apr 14, 11:39 PM CDT, 37 minutes before
ILZ009-015-016-024-IAZ065>068-078-088-089-099-150500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 1130 PM CDT THU APR 14 1994 ...SEVERE THUNDERSTORM WATCH FOR ALL OF THE BISTATE EXCEPT FOR HENRY AND LEE COUNTIES IN IOWA UNTIL 500 AM CDT... ...TORNADO WATCH REMAINS IN EFFECT FOR HENRY AND LEE COUNTIES IN IOWA UNTIL 3 AM CDT... ...SEVERE THUNDERSTORM WARNING FOR CLINTON IOWA HAS EXPIRED... THE SEVERE THUNDERSTORM WARNING FOR CLINTON COUNTY IOWA EXPIRED AT 1115 PM CDT. THE SEVERE THUNDERSTORM THAT PRODUCED MARBLE-SIZED HAIL NEAR DE WITT IOWA EARLIER THIS EVENING HAD MOVED NORTH INTO JACKSON COUNTY IOWA. A SEVERE THUNDERSTORM WATCH IS NOW IN EFFECT FOR THE ENTIRE BISTATE... EXCEPT FOR HENRY AND LEE COUNTIES IN IOWA...UNTIL 500 AM CDT. THE TORNADO WATCH FOR HENRY AND LEE COUNTIES IN IOWA REMAINS IN EFFECT UNTIL 300 AM. A LINE OF STRONG TO SEVERE THUNDERSTORMS STRETCHED FROM KIRKSVILLE MISSOURI...OR 150 MILES SOUTHWEST OF THE QUAD CITIES...TO OTTUMWA IOWA...OR ABOUT 100 MILES SOUTHWEST OF THE QUAD CITIES...TO NEAR THE ILLINOIS-IOWA-WISCONSIN STATE LINES INTERSECTION...OR 130 MILES NORTH OF THE QUAD CITIES. THIS LINE WAS MOVING NORTH NORTHEAST AT 40 MILES AN HOUR AND SHOULD REACH THE WESTERN BISTATE BY MIDNIGHT. PERSONS IN THE WESTERN BISTATE SHOULD WATCH FOR SEVERE WEATHER AND BE READY TO TAKE SHELTER IMMEDIATELY. STAY TUNED TO NOAA WEATHER OR YOUR FAVORITE TV OR RADIO STATION FOR FURTHER STATEMENTS OR WARNINGS. T MEYER
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 10:27 PM CDT | Severe Thunderstorm Warning | DVN | Delaware | 33 min |
| Apr 14, 10:45 PM CDT | Severe Thunderstorm Warning | DVN | Clayton | 45 min |
| Apr 14, 10:51 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 24 min |
| Apr 14, 11:10 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 35 min |
| Apr 15, 12:09 AM CDT | Severe Thunderstorm Warning | DVN | Henry | 36 min |
| Apr 15, 12:22 AM CDT | Severe Thunderstorm Warning | DVN | Delaware | 38 min |
| Apr 15, 12:33 AM CDT | Severe Thunderstorm Warning | DVN | Cedar | 42 min |
| Apr 15, 12:40 AM CDT | Severe Thunderstorm Warning | DVN | Louisa | 50 min |
| Apr 15, 12:49 AM CDT | Severe Thunderstorm Warning | DVN | Lee | 41 min |
| Apr 15, 1:00 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 30 min |
| Apr 15, 1:00 AM CDT | Severe Thunderstorm Warning | DVN | Muscatine | 30 min |
| Apr 15, 1:29 AM CDT | Severe Thunderstorm Warning | DVN | Scott | 46 min |
| Apr 15, 2:15 AM CDT | Severe Thunderstorm Warning | DVN | Clinton | 60 min |
| Apr 15, 2:46 AM CDT | Severe Thunderstorm Warning | DVN | Scott | 59 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1994Every severe thunderstorm warning in 1994
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.