Alert archive / Iowa / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 7, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Mar 13, 1990, 1:58 PM CST for Clinton County, Iowa. It was in force for 32 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, 1:58 PM CST (19:58 UTC)
- Expired
- Mar 13, 1990, 2:30 PM CST
- In force
- 32 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
County Clinton 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, 2:15 PM CST | Hail 0.87 | Clinton, 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, 8.0 hours before the alert went out and 348 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
- 1706 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 45 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 KMLI 131958
SVRMLI
IAC045-132030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOLINE IL
158 PM CST TUE MAR 13 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 230 PM CST FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE EXTREME EAST PART OF IOWA
NORTHEAST CLINTON
AT 150 PM A SEVERE THUNDERSTORM WAS 30 MILES NORTH NORTHEAST OF
MOLINE JUST N OF ELVIRA. GOLF BALL SIZE HAIL WAS REPORTED
JUST WEST OF ELVIRA BY THE CLINTON COUNTY SHERIFF AT 148 PM.
THIS THUNDERSTORM WAS MOVING NORTHEAST AT 30 MILES AN HOUR.
SOME CITIES/TOWNS IN THE PATH OF THIS STORM INCLUDE... ANDOVER...
TENMILE AND ALMONT
FOR YOUR PROTECTION GO TO A SAFE PLACE IMMEDIATELY. STAY INDOORS
AND AVOID WINDOWS. IF OUTDOORS...DO NOT STAND UNDER A TREE OR IN
OPEN AREAS SUCH AS A FIELD.
IF TIME PERMITS...ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY
YOUR REPORT OF SEVERE W EATHER TO THE NATIONAL WEATHER SERVICE.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, Mar 13, 1:46 PM CST, 12 minutes before
IAZ008-132100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DUBUQUE IA 145 PM CST TUE MAR 13 1990 ...STRONG THUNDERSTORMS MOVING THROUGH SOUTHERN PART OF TRI-STATE AREA... AT 140 PM CST...RADAR INDICATED A VERY STRONG THUNDERSTORM LOCATED IN SOUTHERN JACKSON COUNTY...IN EASTERN IOWA...25 MILES SOUTH OF DUBUQUE. THE STORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR AND MARBLE SIZE HAIL WAS REPORTED IN SOUTHEAST JONES COUNTY AS THE STORMS\ MOVED THROUGH THAT AREA. IN THREATENING WEATHER IS SIGHTED...TAKE COVER IMMEDIATELY. KOWALSKI
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, 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, 5:01 PM CST | Tornado Warning | DVN | Delaware | 29 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
Severe Thunderstorm Warnings in Iowa, 1990Every severe thunderstorm warning 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.