Alert archive / Iowa / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 2, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Mar 10, 1990, 12:17 AM CST for Muscatine County, Iowa; Rock Island County, Illinois. It was in force for 43 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 10, 1990, 12:17 AM CST (06:17 UTC)
- Expired
- Mar 10, 1990, 1:00 AM CST
- In force
- 43 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
Counties Muscatine County, IA, Rock Island County, IL
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 10, 12:35 AM CST | Hail 1.75 | Muscatine, 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 00:00Z, 6.3 hours before the alert went out and 402 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
- 567 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 212 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 100617
SVRMLI
IAC139-ILC161-100700-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOLINE IL
1217 AM CST SAT MAR 10 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 100 AM CST FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE EXTREME EAST PART OF IOWA
MUSCATINE...
IN THE NORTHWEST PART OF ILLINOIS
SOUTHERN ROCK-ISLAND...
AT 1210 AM. RADAR INDICATED A SEVERE THUNDERSTORM LOCATED
OVER SOUTH MUSCATINE COUNTY 15 MILES SOUTHWEST OF MUSCATINE
NEAR ARDON AND IN WEST CENTRAL MUSCATINE COUNDY NEAR NICHOLS.
THE STORM WAS MOVING EAST AT 30 MPH.
SOME CITIES/TOWNS IN THE PATH OF THIS STORM INCLUDE... MUSCATINE,
ILLINOIS CITY, EDGINGTON
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.
A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WIND OF 60 MPH OR MORE...
LARGE HAIL...FREQUENT DANGEROUS LIGHTNING AND HEAVY RAIN.
IF TIME PERMITS...ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY
YOUR REPORT OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE.
ATTN ISP 7 AND 1
LAG]UEThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 9, 11:09 PM CST | Severe Thunderstorm Warning | DVN | Jones | 36 min |
| Mar 10, 1:02 AM CST | Severe Thunderstorm Warning | DVN | Scott | 43 min |
| Mar 10, 8:31 AM CST | Severe Thunderstorm Warning | DVN | Muscatine, Scott | 29 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1990Severe Thunderstorm Warnings in Illinois, 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.