Alert archive / Iowa / Tornado Warnings in 1990
Tornado Warning 15, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Jul 4, 1990, 11:27 PM CDT for Jones County, Iowa. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Jul 4, 1990, 11:27 PM CDT (04:27 UTC)
- Expired
- Jul 5, 1990, 12:00 AM CDT
- In force
- 33 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
County Jones County, IA
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
Green Bay/Straub, WI (KGRB), launched 00:00Z, 4.5 hours before the alert went out and 359 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
- 2093 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- 59 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 tornado 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, 9:44 PM CDT, 1 hour 43 minutes before
IAZ008-WIZ018-ILZ001-050230- SPECIAL WEATHER STATEMENT AND UPDATE FOR DUBUQUE AND VICINITY NATIONAL WEATHER SERVICE DUBUQUE IA 945 PM CDT TUE JUL 3 1990 ...SEVERE THUNDERSTORM WATCH UNTIL MIDNIGHT CDT... AT 940 CDT A STRONG THUNDERSTORM WAS LOCATED OVER LANGWORTHY AND AMBER IN CENTRAL JONES COUNTY ABOUT 35 MILES SOUTHWEST OF DUBUQUE AND WILL AFFECT THE TOWN OF SCOTCH GROVE AT 950 PM CDT AND THE TOWNS OF TEMPLE HILL AND CANTON AT 1015 PM CDT. THIS STORM COULD PRODUCE HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTING AND WAS MOVING EAST AT 20 MILES AN HOUR. ALTHOUGH NO SEVERE WEATHER HAS BEEN REPORTED YET...PERSONS IN THE TRI-STATE SHOULD BE ALERT. THE THUNDERSTORMS COULD BECOME SEVERE AT ANYTIME. PERSONS IN THE TRI-STATE SHOULD REMAIN ALERT...IF THREATENING WEATHER APPROACHES SEEK SHELTER. IF YOU HAVE TIME REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCY. STAY TUNED TO YOUR RADIO...TV OR THIS WEATHER RADIO STATION FOR UPDATES AND WARNINGS. HINNERS
Special weather statement, Jul 4, 10:04 PM CDT, 1 hour 23 minutes before
IAZ008-WIZ018-ILZ001-050230- SPECIAL WEATHER STATEMENT AND UPDATE FOR DUBUQUE AND VICINITY NATIONAL WEATHER SERVICE DUBUQUE IA 1005 PM CDT TUE JUL 3 1990 ...SEVERE THUNDERSTORM WATCH UNTIL MIDNIGHT CDT... AT 1000 PM CDT A STRONG THUNDERSTORM WAS LOCATED OVER CANTON IN EASTERN JONES COUNTY ABOUT 30 MILES SOUTH SOUTHWEST OF DUBUQUE AND WILL AFFECT THE TOWNS OF DUGGAN...MONMOUTH IN JACKSON COUNTY AT 1015 PM CDT. ANOTHER STORM WAS LOCATED OVER THE DUBUQUE REGIONAL AIRPORT OR 10 MILES SOUTH OF DUBUQUE AND WILL AFFECT THE TOWNS OF MASSEY AND KING IN DUBUQUE COUNTY. THESE STORMS COULD PRODUCE HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTING AND WAS MOVING EAST AT 25 MILES AN HOUR. ALTHOUGH NO SEVERE WEATHER HAS BEEN REPORTED YET...PERSONS IN THE TRI-STATE SHOULD BE ALERT. THESE THUNDERSTORMS COULD BECOME SEVERE AT ANYTIME. PERSONS IN THE TRI-STATE SHOULD REMAIN ALERT...IF THREATENING WEATHER APPROACHES SEEK SHELTER. IF YOU HAVE TIME REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCY. STAY TUNED TO YOUR RADIO...TV OR THIS WEATHER RADIO STATION FOR UPDATES AND WARNINGS. HINNERS
Special weather statement, Jul 4, 10:34 PM CDT, 53 minutes before
IAZ008-WIZ018-ILZ001-050430- SPECIAL WEATHER STATEMENT AND UPDATE FOR DUBUQUE AND VICINITY NATIONAL WEATHER SERVICE DUBUQUE IA 1030 PM CDT TUE JUL 3 1990 ...SEVERE THUNDERSTORM WATCH UNTIL MIDNIGHT CDT... AT 1025 PM CDT AN AREA OF STRONG THUNDERSTORMS WAS LOCATED FROM COUNCEL HILL IN NORTHWEST JO-DAVIES TO JUST EAST OF MAQUOKETA IN JACKSON COUNTY OR 15 MILES EAST TO 30 MILES SOUTH OF DUBUQUE. THIS AREA WILL AFFECT THE TOWNS OF APPLE RIVER...ELIZABETH...HANOVER AND WHITTON IN JO-DAVIES AND SPRINGBROOK...VAN BUREN AND GREEN ISLAND IN JACKSON COUNTY BY 1045 PM CDT. THESE STORMS COULD PRODUCE HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTING AND WAS MOVING EAST AT 20 MILES AN HOUR. ALTHOUGH NO SEVERE WEATHER HAS BEEN REPORTED YET...PERSONS IN THE TRI-STATE SHOULD BE ALERT. THESE THUNDERSTORMS COULD BECOME SEVERE AT ANYTIME. PERSONS IN THE TRI-STATE SHOULD REMAIN ALERT...IF THREATENING WEATHER APPROACHES SEEK SHELTER. IF YOU HAVE TIME REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCY. STAY TUNED TO YOUR RADIO...TV OR THIS WEATHER RADIO STATION FOR UPDATES AND WARNINGS. HINNERS
Special weather statement, Jul 4, 11:05 PM CDT, 22 minutes before
IAZ008-WIZ018-ILZ001-050430- SPECIAL WEATHER STATEMENT AND UPDATE FOR DUBUQUE AND VICINITY NATIONAL WEATHER SERVICE DUBUQUE IA 1105 PM CDT TUE JUL 3 1990 ...SEVERE THUNDERSTORM WATCH UNTIL MIDNIGHT CDT... ...FLASH FLOOD WATCH FOR GRANT AND LAFAYETTE COUNTIES IN SOUTHWEST WISCONSIN TONIGHT... AT 1055 PM CDT AN AREA OF STRONG THUNDERSTORMS WAS LOCATED FROM APPLE RIVER IN NORTHEAST JO-DAVIES TO VAN BUREN IN JACKSON COUNTY OR 30 MILES EAST TO 35 MILES SOUTHEAST OF DUBUQUE. THIS AREA WILL AFFECT THE TOWNS OF STOCKTON AND PLEASANT VALLEY IN JO-DAVIES COUNTY AND SABULA AND STERLING IN JACKSON COUNTY BETWEEN 1115 TO 1130 PM CDT. ANOTHER AREA OF STRONG THUNDERSTORMS WAS LOCATED JUST ON THE WESTERN EDGE OF JONES COUNTY OR 40 TO 45 MILES SOUTHWEST OF DUBUQUE. THESE STORMS WILL AFFECT THE TOWNS OF MONTICELLO AND ANAMOSA IN JONES COUNTY BETWEEN 1120 TO 1145 PM CDT. THESE STORMS COULD PRODUCE HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTING AND WAS MOVING EAST AT 35 MILES AN HOUR. ALTHOUGH NO SEVERE WEATHER HAS BEEN REPORTED YET...PERSONS IN THE TRI-STATE SHOULD BE ALERT. THESE THUNDERSTORMS COULD BECOME SEVERE AT ANYTIME. PERSONS IN THE TRI-STATE SHOULD REMAIN ALERT...IF THREAT=ENING WEATHER APPROACHES SEEK SHELTER. IF YOU HAVE TIME REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCY. STAY TUNED TO YOUR RADIO...TV OR THIS WEATHER RADIO STATION FOR UPDATES AND WARNINGS. HINNERS
Special weather statement, Jul 4, 11:09 PM CDT, 18 minutes before
IAZ008-WIZ018-ILZ001-050430- SPECIAL WEATHER STATEMENT AND UPDATE FOR DUBUQUE AND VICINITY NATIONAL WEATHER SERVICE DUBUQUE IA...CORRECTION 1105 PM CDT TUE JUL 3 1990 ...SEVERE THUNDERSTORM WATCH UNTIL MIDNIGHT CDT... AT 1055 PM CDT AN AREA OF STRONG THUNDERSTORMS WAS LOCATED FROM APPLE RIVER IN NORTHEAST JO-DAVIES TO VAN BUREN IN JACKSON COUNTY OR 30 MILES EAST TO 35 MILES SOUTHEAST OF DUBUQUE. THIS AREA WILL AFFECT THE TOWNS OF STOCKTON AND PLEASANT VALLEY IN JO-DAVIES COUNTY AND SABULA AND STERLING IN JACKSON COUNTY BETWEEN 1115 TO 1130 PM CDT. ANOTHER AREA OF STRONG THUNDERSTORMS WAS LOCATED JUST ON THE WESTERN EDGE OF JONES COUNTY OR 40 TO 45 MILES SOUTHWEST OF DUBUQUE. THESE STORMS WILL AFFECT THE TOWNS OF MONTICELLO AND ANAMOSA IN JONES COUNTY BETWEEN 1120 TO 1145 PM CDT. THESE STORMS COULD PRODUCE HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTING AND WAS MOVING EAST AT 35 MILES AN HOUR. ALTHOUGH NO SEVERE WEATHER HAS BEEN REPORTED YET...PERSONS IN THE TRI-STATE SHOULD BE ALERT. THESE THUNDERSTORMS COULD BECOME SEVERE AT ANYTIME. PERSONS IN THE TRI-STATE SHOULD REMAIN ALERT...IF THREATENING WEATHER APPROACHES SEEK SHELTER. IF YOU HAVE TIME REPORT ANY SEVERE W?EATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCY. STAY TUNED TO YOUR RADIO...TV OR THIS WEATHER RADIO STATION FOR UPDATES AND WARNINGS. HINNERS CORRECTION TO DROP FLASH FLOOD WATCH FOR WISCONSIN COUNTIES
Special weather statement, Jul 4, 11:12 PM CDT, 15 minutes before
ILZ004-IAZ015-050445- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 1110 PM CDT WED JUL 4 1990 ...SEVERE THUNDERSTORM WATCH FOR EAST CENTRAL AND SOUTHEAST IOWA AND NORTHWEST ILLINOIS UNTIL MIDNIGHT... AT 1105 PM CDT...RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS OVER EAST CENTRAL IOWA JUST ENTERING WESTERN CEDAR AND NORTHWEST MUSCATINE COUNTIES...45 MILES WEST THROUGH NORTHWEST OF MOLINE. HEAVY RAIN...SMALL HAIL AND GUSTY WINDS UP TO 40 MILES AN HOUR ARE LIKELY WITH THESE STORMS AS THEY MOVE ACROSS CEDAR AND NORTHERN MUSCATINE COUNTIES BETWEEN 1110 PM AND 1145 PM CDT. FOBERT
Nearby
Tornado Warnings in Iowa, 1990Every tornado warning in 1990Tornadoes in 1990
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.