Alert archive / Iowa / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 2, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Apr 10, 1992, 6:21 PM CDT for Delaware County, Dubuque County, Iowa. It was in force for 39 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 10, 1992, 6:21 PM CDT (23:21 UTC)
- Expired
- Apr 10, 1992, 7:00 PM CDT
- In force
- 39 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
Counties Delaware County, IA, Dubuque County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 10, 6:25 PM CDT | Hail 0.75 | Delaware, IA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.4 hours before the alert went out and 331 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
- 1130 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 382 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 102321 SVRDBQ IAC055-061-110000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DUBUQUE IA 621 PM CDT FRI APR 10 1992 THE NATIONAL WEATHER SERVICE IN DUBUQUE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 700 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST IOWA ...DELAWARE COUNTY...SOUTHERN DUBUQUE COUNTY AT 620 PM CDT RADAR WAS INDICATING A SEVERE THUNDERSTORM NEAR CASCADE IN DUBUQUE COUNTY...20 MILES SOUTHWEST OF THE CITY OF DUBUQUE. ANOTHER SEVERE THUNDERSTORM WAS IN SOUTHWEST DELAWARE COUTNY NEAR RYAN...40 MILES WEST OF THE CITY OF DUBUQUE. BOTH STORMS WERE MOVING TO THE EAST NORTHEAST AT 40 MILES AN HOUR. SOME TOWNS IN THE PATHS OF THESE STORMS ARE FILLMORE...BERNARD AND DELHI AND HOPKINTON. THESE TOWNS WILL BE AFFECTED BETWEEN THE HOURS OF 620 PM AND 645 PM CDT. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. MOVE TO THE CENTER OF THE HOUSE...STAY AWAY FROM WINDOWS...AND BE READY TO ACT QUICKLY IF A TORNADO DEVELOPS. 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 10, 1:08 PM CDT, 5 hours 13 minutes before
ILZ004-IAZ015-101800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 100 PM CDT FRI APR 10 1992 THUNDERSTORMS CONTINUED TO RUMBLE ACROSS PARTS OF EAST CENTRAL IOWA AND NORTHWEST ILLINOIS THIS AFTERNOON. AT 1245 PM THUNDERSTORMS AND SHOWERS EXTENDED FROM WEST TO EAST ALONG AND NORTH OF CLINTON COUNTY IOWA AND WHITESIDE COUNTY ILLINOIS. THIS WOULD PLACE THE THUNDERSTORMS AND SHOWES 10 TO 15 MILES NORTH OF DEWITT AND CLINTON IOWA AND 10 TO 15 MILES NORTHEAST OF MORRISON ILLINOIS. THESE THUNDERSTORMS AND SHOWERE WERE 40 MILES NORTH OF THE QUAD CITIES MOVING EAST AT 40 MILES AN HOUR. THIS AFTERNOONS THUNDERSTORMS AND SHOWERS WERE DEVELOPING ALONG A WARM FRONT THAT WAS NEARLY STATIONARY ACROSS EAST CENTRAL IOWA AND NORTH ILLINOIS. WITH THIS TYPE OF WEATHER PATTERN...THUNDERSTORMS CAN DEVELOP AND DISSIPATE ACROSS THE SAME AREA OVER AND OVER AGAIN. IN SOME CASES THIS CAN LEAD TO FLOOD PROBLEMS. PLEASE STAY ALERT TO THIS AFTERNOON WEATHER CONDITIONS AND LISTEN FOR LATEST WEATHER UPDATES. MEYER
Special weather statement, Apr 10, 1:58 PM CDT, 4 hours 23 minutes before
ILZ004-IAZ015-101800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 145 PM CDT FRI APR 10 1992 THUNDERSTORMS CONTINUED TO RUMBLE ACROSS PARTS OF EAST CENTRAL IOWA AND NORTHWEST ILLINOIS THIS AFTERNOON...AND WERE DEVELOPING A LITTLE CLOSER TO THE QUAD CITIES. AT 130 PM CDT STRONG THUNDERSTORMS HAD DEVELOPED IN THE EXTREME NORTH PART OF SCOTT COUNTY IOWA...15 MILES NORTH OF DAVENPORT IOWA. OTHER STRONG THUNDERSTORMS HAD ALSO DEVELOPED IN EXTREME NORTH ROCK ISLAND COUNTY ILLINOIS...25 MILES NORTHEAST OF MOLINE ILLINOIS. THE THUNDERSTORMS HAD DEVELOPED CLOSER TO THE QUAD CITIES SINCE 1 PM...BUT WERE STILL MOVING EAST AT 40 MILES AN HOUR. OTHER SHOWERS AND THUNDERSTORMS REMAINDED SCATTERED ACROSS PARTS OF CLINTON COUNTY IOWA AND WHITESIDE COUNTY ILLINOIS...BETWEEN 30 AND 40 MILES NORTH AND NORTHEAST OF THE QUAD CITIES...ALSO MOVING EAST AT 40 MILES AN HOUR. IF YOU ARE WORKING OUTDOORS THIS AFTERNOON NEAR ANY OF THESE THUNDERSTORMS...BE ON THE LOOKOUT FOR DANGEROUS LIGHTNING...BRIEF HEAVY RAIN AND GUSTY WINDS. IF THREATENING WEATHER APPROACHES...BE PREPARED TO MOVE INDOORS TO A SAFE SHELTER AND WAIT FOR THE THUNDERSTORMS TO MOVE OUT OF THE AREA. MEYER
Special weather statement, Apr 10, 4:04 PM CDT, 2 hours 17 minutes before
ILZ004-IAZ015-101800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 400 PM CDT FRI APR 10 1992 ...TORNADO WATCH IN EFFECT FOR ALL OF THE BISTATE REGION UNTIL 10 PM CDT... AT 4 PM NATIONAL WEATHER SERVICE RADAR AT THE QUAD CITY AIRPORT HAD DETECTED NO THUNDERSTORMS ACROSS THE BISTATE REGION. HOWEVER...CONDITIONS ARE FAVORABLE FOR THUNDERSTORM DEVELOPMENT ACROSS EAST IOWA AND NORTHWEST ILLINOIS THIS AFTERNOON AND TONIGHT. PLEASE KEEP AN EYE ON THE SKY AND YOUR EAR TUNED TO YOUR NOAA WEATHER RADIO FOR LATEST WEATHER DEVELOPMENTS. MEYER
Special weather statement, Apr 10, 4:53 PM CDT, 1 hour 28 minutes before
ILZ004-IAZ015-101800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 445 PM CDT FRI APR 10 1992 ...TORNADO WATCH IN EFFECT FOR ALL OF THE BISTATE REGION UNTIL 10 PM CDT... AT 430 PM NATIONAL WEATHER SERVICE RADAR CONTINUED TO SHOW NO THUNDERSTORMS IN EXTREME EAST IOWA OR NORTHWEST ILLINOIS. A SEVERE THUNDERSTORM HAD DEVELOPED IN CENTRAL IOWA...IN MARSHAL COUNTY AT ABOUT 430 PM CDT...WHICH MEANS THIS SEVERE THUNDERSTORM WAS STILL ABOUT 130 MILES WEST OF THE QUAD CITIES...MOVING EAST AT 40 MILES AN HOUR. THIS SEVERE THUNDERSTORM AND OTHER THUNDERSTORMS COULD APPROACH THE BISTATE BETWEEN 7 AND 8 PM...SO BE PREPARED FOR CHANGING AND POSSIBLY SEVERE WEATHER CONDITIONS...LATER THIS AFTERNOON AND EVENING. MEYER
Special weather statement, Apr 10, 5:50 PM CDT, 31 minutes before
ILZ004-IAZ015-110000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 545 PM CDT FRI APR 10 1992 ...TORNADO WATCH IN EFFECT FOR ALL OF THE BISTATE REGION UNTIL 10 PM CDT... AT 530 PM CDT...RADAR INDICATED STRONG THUNDERSTORMS 35 MILES NORTHWEST OF TIPTON IOWA IN CEDAR COUNTY...OR 60 MILES NORTHWEST OF THE QUAD CITIES ...MOVING EAST AT 35 MILES AN HOUR. A SEVERE THUNDERSTORM WAS 15 MILES SOUTHEAST OF WATERLOO IOWA...MOVING EAST AT 40 MILES AN HOUR. THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. THESE STRONG AND SEVERE STORMS APPEAR AS IF THEY WILL MOVE JUST NORTH OF CEDAR AND CLINTON COUNTIES IN IOWA...IF THEY REMAIN ON THEIR PRESENT COURSE. HOWEVER..PERSONS IN NORTHERN CEDAR AND CLINTON COUNTIES SHOULD REMAIN ALERT AND PREPARED FOR POSSIBLE SEVERE WEATHER BETWEEN NOW AND 7:30 PM. IF THREATENING WEATHER APPROACHES WHERE YOU LIVE...BE PREPARED TO TAKE SHELTER IMMEDIATELY. MEYER
Special weather statement, Apr 10, 5:56 PM CDT, 25 minutes before
IAZ008-ILZ001-110000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DUBUQUE IA 556 PM CDT FRI APR 10 1992 ...TORNADO WATCH FOR MOST OF THE TRI-STATES UNTIL 1000 PM CDT... AT 555 PM CDT RADAR WAS INDICATING STRONG THUNDERSTORMS OVER WESTERN DUBUQUE AND NORTHERN JONES COUNTY NEAR FARLEY...20 MILES WEST OF THE CITY OF DUBUQUE...EXTENDING SOUTH TO NEAR MONTICELLO...30 MILES SOUTHWEST OF DUBUQUE. THIS STORM WAS MOVING TO THE EAST AROUND 30 MILES AN HOUR. IN ADDITION...A SEVERE THUNDERSTORM WAS LOCATED IN BUCHANAN COUNTY AND WILL BE MOVING INTO WESTERN DELAWARE COUNTY AFTER 615 PM CDT. IF YOU ARE IN THE PATH OF THESE STORMS...TAKE COVER IMMEDIATELY. THE STORMS MAY PRODUCE HAIL...DEADLY LIGHTNING...AND TORNADOES WITH LITTLE ADVANCED NOTICE. IRELAND NNNN
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 6:03 PM CDT | Severe Thunderstorm Warning | DVN | Jones | 27 min |
| Apr 10, 6:24 PM CDT | Severe Thunderstorm Warning | DVN | Jones | 36 min |
| Apr 10, 6:59 PM CDT | Severe Thunderstorm Warning | DVN | Jackson, Jones | 31 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1992Every severe thunderstorm warning in 1992
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.