Alert archive / Iowa / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 28, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 30, 1990, 9:53 AM CDT for Lee County, Iowa. It was in force for 52 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1990, 9:53 AM CDT (14:53 UTC)
- Expired
- Jun 30, 1990, 10:45 AM CDT
- In force
- 52 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
County Lee 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
Omaha, NE (KOAX), launched 12:00Z, 2.9 hours before the alert went out and 417 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
- 3663 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 37 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 301453
SVRMLI
IAC111-301545-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOLINE IL
953 AM CDT SAT JUN 30 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 1045 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE SOUTHEAST PART OF IOWA
LEE
AT 950 AM CDT RADAR SHOWS TWO SEVERE THUNDERSTORMS IN SOUTHEAST
IOWA. ONE THUNDERSTORM WAS LOCATED 10 TO 15 MILES WEST OF
BURLINGTON AND THE OTHER ABOUT 20 MILES WEST OF FORT MADISON.
THE THUNDERSTORMS WERE MOVING TOWARD THE SOUTHEAST AT 20 MPH.
SOME CITIES/TOWNS IN THE PATH OF THIS STORM INCLUDE... BURLINGTON..
CROTON...NEW BOSTON.
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.
THESE SLOW MOVING THUNDERSTORMS MAY CAUSE FLOODING OF SMALL
STREAMS AND UNDERPASSES. DO NOT DRIVE THROUGH FLOODED AREAS.
IF TIME PERMITS...ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY
YOUR REPORT OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE.
KRAEMERWhat 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, Jun 30, 5:19 AM CDT, 4 hours 34 minutes before
IAZ008-WIZ018-ILZ001-301300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DUBUQUE IA 520 AM CDT SAT JUN 30 1990 ...AREAS OF DENSE FOG COVERS THE TRI-STATE THIS MORNING... SOME DENSE FOG FORMED OVERNIGHT IN THE TRI-STATE AREA AND THE VISIBILITY AT THE DUBUQUE AREA WAS 1/8 OF A MILE...WITH NUMEROUS OTHER REPORTS OF LOW VISIBILITY. THE DENSE FOG SHOULD BURN OFF QUITE RAPIDLY AFTER SUNRISE...MEANWHILE PERSONS IN THE TRI-STATE AREA SHOULD BEY ALERT WHILE DRIVING...USE YOUR LOW BEAM HEADLIGHTS AND LEAVE FOR YOUR DESTINATION EARLY ENOUGH TO ASSURE SAFE ARRIVAL. KOWALSKI
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 8:34 AM CDT | Severe Thunderstorm Warning | DVN | Lee | 41 min |
| Jun 30, 9:14 AM CDT | Severe Thunderstorm Warning | DVN | Lee | 31 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; the sounding from the Mesonet's radiosonde archive.