Alert archive / Iowa / Tornado Warnings in 1990
Tornado Warning 5, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Mar 13, 1990, 5:01 PM CST for Delaware County, Iowa. It was in force for 29 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
- Mar 13, 1990, 5:01 PM CST (23:01 UTC)
- Expired
- Mar 13, 1990, 5:30 PM CST
- In force
- 29 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
County Delaware County, IA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 13, 5:10 PM CST | Tornado F4 | 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
Minneapolis, MN (KSTC), launched 12:00Z, 11.0 hours before the alert went out and 320 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
- 1580 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 343 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, Mar 13, 2:04 PM CST, 2 hours 57 minutes before
IAZ008-ILZ001-132100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DUBUQUE IA 200 PM CST TUE MAR 13 1990 ...STRONG THUNDERSTORMS IN AND AROUND DUBUQUE AND THE TRI-STATE AREA... AT 155 PM CST...RADAR INDICATED STRONG THUNDERSTORMS IN AND AROUND THE TRI-STATE AREA. THE STRONGEST OF THE STORMS WERE LOCATED IN THE SOUTHERN PART OF JONES COUNTY...40 MILES SOUTHWEST OF DUBUQUE AND 40 MILES WEST OF DUBUQUE JUST ABOUT TO ENTER SOUTHWEST DELAWARE COUNTY. THE STORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR AND MARBLE SIZE HAIL WAS REPORTED WITH THESE STORMS. IN THREATENING WEATHER IS SIGHTED...TAKE COVER IMMEDIATELY. KOWALSKI
Local storm report, Mar 13, 3:29 PM CST, 1 hour 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DUBUQUE IA
325 PM CST TUE MAR 13 1990
REPORTS RELAYED TO OUR OFFICE BY SHERIFFS DEPT...AND CIVIL DEFENSE
TIME UNKN...JO-DAVIES COUNTY IN NORTHWEST ILLINIOS...NEAR STOCKTON
35 MILES SOUTHEAST OF DUBUQUE.
1346 CST....JONES COUNTY IN NORTHEAST IOWA...LIGHTNING NEAR OXFORD
JUNCTION...DAMAGE TO ROOF.
KOWALSKISpecial weather statement, Mar 13, 3:36 PM CST, 1 hour 25 minutes before
ILZ004-132115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 335 PM CST TUE MAR 13 1990 ...SEVERE THUNDERSTORM WATCH FOR SOUTHEAST IOWA AND NORTHWEST ILLINOIS UNTIL 8 PM CST... A STRONG THUNDERSTORM DEVELOPED RAPIDLY OVER NORTHWEST ILLINOIS SINCE 315 PM NEAR ALEDO IN CENTRAL MERCER COUNTY...20 MILES SOUTHWEST OF MOLINE. THE THUNDERSTORM WAS MOVING NORTHEAST AT 40 MILES AN HOUR AND WILL BE MOVING INTO LOWER ROCK ISLAND COUNTY NEAR REYNOLDS BY 345 PM CST AND INTO THE QUAD CITY AREA BY 4PM. HEAVY RAIN AND SOME HAIL IS POSSIBLE WITH THIS STORM. FOBERT
Special weather statement, Mar 13, 3:44 PM CST, 1 hour 17 minutes before
IAZ008-ILZ001-WIZ018-132230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DUBUQUE IA 340 PM CST TUE MAR 13 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 800 PM CST... AT 335 PM CST...RADAR SHOWED NUMEROUS THUNDERSTORMS AROUND THE TRI-STATE AREA. THE STRONGER OF THE STORMS WERE LOCATED NEAR GALENA IN JO-DAVIES COUNTY ILLINOIS 15 MILES SOUTHEAST OF DUBUQUE. THE STORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR. PERSONS IN THE TRI- STATE AREA SHOULD TAKE COVER IF THREATENING WEATHER IS SIGHTED. KOWALSKI
Local storm report, Mar 13, 3:54 PM CST, 1 hour 7 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION...
NATIONAL WEATHER SERVICE DUBUQUE IA
325 PM CST TUE MAR 13 1990
REPORTS RELAYED TO OUR OFFICE BY SHERIFFS DEPT...AND CIVIL DEFENSE
TIME UNKN...JO-DAVIE5S COUNTY IN NORTHWEST ILLINIOS...NEAR STOCKTON
35 MILES SOUTHEAST OF DUBUQUE...ONE (1) INCH HAIL.
1346 CST....JONES COUNTY IN NORTHEAST IOWA...LIGHTNING NEAR OXFORD
JUNCTION...DAMAGE TO ROOF.
KOWALSKISpecial weather statement, Mar 13, 4:33 PM CST, 28 minutes before
IAZ008-ILZ001-WIZ018-132330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DUBUQUE IA 425 PM CST TUE MAR 13 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 800 PM CST... ...FLASH FLOOD WATCH TONIGHT... AT 435 PM CST...RADAR SHOWED NUMEROUS THUNDERSTORMS AROUND THE TRI-STATE. THE STRONGER OF THE STORMS WERE LOCATED NEAR EAST CENTRAL AND CENTRAL GRANT COUNTY AND EAST CENTRAL...NORTHWEST...AND SOUTH CENTRAL JONES COUNTY. THE STORMS WEsRE MOVING NORTHEAST AT 30 MILES AN HOUR. PERSONS IN THE TRI-STATE AREA SHOULD TAKE COVER IF THREATENING WEATHER IS SIGHTED. DEROY
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 13, 12:39 AM CST | Severe Thunderstorm Warning | DVN | Cedar | 31 min |
| Mar 13, 1:40 PM CST | Severe Thunderstorm Warning | DVN | Clinton | 20 min |
| Mar 13, 1:58 PM CST | Severe Thunderstorm Warning | DVN | Clinton | 32 min |
| Mar 13, 2:10 PM CST | Severe Thunderstorm Warning | DVN | Jones | 50 min |
| Mar 13, 3:45 PM CST | Severe Thunderstorm Warning | DVN | Scott | 45 min |
| Mar 13, 4:26 PM CST | Tornado Warning | DVN | Scott | 34 min |
| Mar 13, 4:59 PM CST | Tornado Warning | DVN | Clinton, Scott | 31 min |
| Mar 13, 5:09 PM CST | Tornado Warning | DVN | Dubuque, Jones | 36 min |
| Mar 13, 5:25 PM CST | Tornado Warning | DVN | Dubuque | 35 min |
| Mar 13, 5:31 PM CST | Tornado Warning | DVN | Clinton | 29 min |
| Mar 13, 5:37 PM CST | Tornado Warning | DVN | Delaware | 38 min |
| Mar 13, 5:39 PM CST | Tornado Warning | DVN | Cedar, Muscatine | 36 min |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.