Alert archive / Illinois / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 272, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 28, 1998, 5:22 PM CDT for Adams County, Illinois. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 28, 1998, 5:22 PM CDT (22:22 UTC)
- Expired
- Jun 28, 1998, 6:10 PM CDT
- In force
- 48 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Adams County, IL
The radar
The St Louis radar (KLSX), 150 km from the middle of the area, began a volume at 22:22 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 10.4 hours before the alert went out and 190 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
- 516 J/kg
- Mixed-layer CIN
- -304 J/kg
- Mixed-layer LCL
- 947 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.5
The text
As transmitted, in the capitals the NWS used until 2016.
635 WUUS1 KSTL 282223 RRA SVRSTL ILC001-282310- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 522 PM CDT SUN JUN 28 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN ADAMS COUNTY IN WEST CENTRAL ILLINOIS * UNTIL 610 PM CDT * AT 520 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR THE TOWN OF LIMA... MOVING EAST AT 20 MPH. * LOCATIONS THAT WILL BE AFFECTED... LORAINE WOODVILLE BIGNECK SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND GUSTS IN EXCESS OF 60 MPH...DAMAGING HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OR YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. JPK/RP
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, Jun 28, 4:45 PM CDT, 37 minutes before
ILZ098>102-MOZ061-063>065-282100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 445 PM CDT SUN JUN 28 1998 ...HEAT ADVISORY REMAINS IN EFFECT THROUGH MONDAY FOR PORTIONS OF EAST CENTRAL MISSOURI AND SOUTHWEST ILLINOIS... THE HEAT ADVISORY REMAINS IN EFFECT FOR A PORTION OF EAST CENTRAL AND SOUTHWEST ILLINOIS THROUGH MONDAY. SOME CITIES IN THE HEAT ADVISORY INCLUDE ST LOUIS...ST CHARLES...HILLSBORO...WATERLOO...BELLEVILLE... EDWARDSVILLE...JERSEYVILLE...HARDIN...AND SALEM A HEAT ADVISORY IS ISSUED WHEN DAYTIME MAXIMUM HEAT INDICES OF 105 OR GREATER ARE REACHED FOR SEVERAL HOURS...WITH MINIMUM NIGHTTIME HEAT INDICES OF NO LESS THAN 80. THESE HIGH HEAT INDICES ARE DUE TO THE COMBINATION OF WARM TEMPERATURES AND HIGH HUMIDITIES. MONDAY WILL BE ANOTHER HOT DAY AS HIGH TEMPERATURES ARE EXPECTED TO RANGE FROM 90 TO 95. WITH DEWPOINT TEMPERATURES IN THE LOW TO MIDDLE 70S...MAXIMUM HEAT INDICES REACH 105 TO 110 IN THE ADVISORY AREA. THE GOOD NEWS IS THAT MONDAY MAY BE THE LAST DAY A HEAT ADVISORY IS NEEDED FOR THE AREA. A STORM SYSTEM IS FORECAST TO MOVE EAST ACROSS THE GREAT LAKES THE NEXT 24-48 HOURS. THIS SYSTEM WILL GRADUALLY PUSH SOME COOLER AIR INTO THE MIDWEST AND ALSO INCREASE THE CHANCES FOR THUNDERSTORMS. HEAT STRESS OFTEN AFFECTS THE ELDERLY AND THE VERY YOUNG. IF YOU HAVE A FRIEND OR FAMILY MEMBER WHO MIGHT BE SUSCEPTIBLE TO THE HEAT... CHECK ON THEIR CONDITION FREQUENTLY. RISK FACTORS THAT MAKE ONE PRONE TO THE EFFECTS OF HEAT STRESS INCLUDE...OBESITY...POOR CIRCULATION...DIABETES...AND DRUG OR ALCOHOL USE. THOSE MOST SUSCEPTIBLE TO HEAT STRESS SHOULD REMAIN IN AN AIR CONDITIONED BUILDING IF POSSIBLE. JPK
Special weather statement, Jun 28, 4:45 PM CDT, 37 minutes before
ILZ098>102-MOZ061-063>065-282100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 445 PM CDT SUN JUN 28 1998 ...HEAT ADVISORY REMAINS IN EFFECT THROUGH MONDAY FOR PORTIONS OF EAST CENTRAL MISSOURI AND SOUTHWEST ILLINOIS... THE HEAT ADVISORY REMAINS IN EFFECT FOR A PORTION OF EAST CENTRAL AND SOUTHWEST ILLINOIS THROUGH MONDAY. SOME CITIES IN THE HEAT ADVISORY INCLUDE ST LOUIS...ST CHARLES...HILLSBORO...WATERLOO...BELLEVILLE... EDWARDSVILLE...JERSEYVILLE...HARDIN...AND SALEM A HEAT ADVISORY IS ISSUED WHEN DAYTIME MAXIMUM HEAT INDICES OF 105 OR GREATER ARE REACHED FOR SEVERAL HOURS...WITH MINIMUM NIGHTTIME HEAT INDICES OF NO LESS THAN 80. THESE HIGH HEAT INDICES ARE DUE TO THE COMBINATION OF WARM TEMPERATURES AND HIGH HUMIDITIES. MONDAY WILL BE ANOTHER HOT DAY AS HIGH TEMPERATURES ARE EXPECTED TO RANGE FROM 90 TO 95. WITH DEWPOINT TEMPERATURES IN THE LOW TO MIDDLE 70S...MAXIMUM HEAT INDICES REACH 105 TO 110 IN THE ADVISORY AREA. THE GOOD NEWS IS THAT MONDAY MAY BE THE LAST DAY A HEAT ADVISORY IS NEEDED FOR THE AREA. A STORM SYSTEM IS FORECAST TO MOVE EAST ACROSS THE GREAT LAKES THE NEXT 24-48 HOURS. THIS SYSTEM WILL GRADUALLY PUSH SOME COOLER AIR INTO THE MIDWEST AND ALSO INCREASE THE CHANCES FOR THUNDERSTORMS. HEAT STRESS OFTEN AFFECTS THE ELDERLY AND THE VERY YOUNG. IF YOU HAVE A FRIEND OR FAMILY MEMBER WHO MIGHT BE SUSCEPTIBLE TO THE HEAT... CHECK ON THEIR CONDITION FREQUENTLY. RISK FACTORS THAT MAKE ONE PRONE TO THE EFFECTS OF HEAT STRESS INCLUDE...OBESITY...POOR CIRCULATION...DIABETES...AND DRUG OR ALCOHOL USE. THOSE MOST SUSCEPTIBLE TO HEAT STRESS SHOULD REMAIN IN AN AIR CONDITIONED BUILDING IF POSSIBLE. JPK
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 6:12 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 48 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1998Every severe thunderstorm warning in 1998
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; radar from the NEXRAD Level II archive.