Alert archive / Michigan / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 155, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Sep 6, 1990, 8:13 AM EST for Saint Joseph County, Michigan. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- Sep 6, 1990, 8:13 AM EST (13:13 UTC)
- Expired
- Sep 6, 1990, 8:45 AM EST
- In force
- 32 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Saint Joseph County, MI
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
Detroit, MI (KFNT), launched 12:00Z, 1.2 hours before the alert went out and 194 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
- 1594 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 630 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 185 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSBN 061313
SVRSBN
MIC149-061345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SOUTH BEND IN
913 AM EDT THU SEP 6 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 945 AM EDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE SOUTHWEST PART OF MICHIGAN
SOUTHERN ST JOSEPH
AT 8 05 AM EST...9 05 AM EDT...A SEVERE THUNDERSTORM WAS INDICATED
BY RADAR JUST WEST OF STURGIS MICHIGAN...37 MILES EAST NORTHEAST
OF SOUTH BEND INDIANA.
SOME TOWNS IN THE PATH OF THIS STORM AREA KLINGER LAKE AND STURGIS
BOTH IN MICHIGAN.
MICHIGAN STATE POLICE REPORTED A TRAILER OVERTURNED AT CONSTANTINE
MICHIGAN JUST BEFOR 9 AM EDT.
THE SEVERE THUNDERSTORM WAS MOVING EAST AROUND 25 MPH.
THIS STORM IS CAUSING INTENSE LIGHTNING AND STRONG GUSTY WIND. YOU
SHOULD SEEK INDOOR SHELTER AND STAY AWAY FROM PLUMBING OR APPLIANCES.
IF YOU ARE IN THE PATH OF THIS SEVERE THUNDERSTORM GET INTO A REIN-
FORCED SHELTER AND PREPARE FOR STRONG DAMAGING WIND...LARGE HAIL...
VERY HEAVY RAIN AND LIGHTNING.
REPORT SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY AND ASK
THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVI CE.
MOWERYWhat 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, Sep 6, 6:23 AM EST, 1 hour 50 minutes before
IND007>015-051500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 620 AM EST THU SEP 6 1990 ...EXCESSIVE HEAT AND HUMIDITY FOR CENTRAL AND SOUTHERN INDIANA TODAY AND SOUTHERN INDIANA ON FRIDAY... HIGH PRESSURE ANCHORED OVER THE SOUTHEAST UNITED STATES WILL CAUSE UNSEASONABLY HIGH TEMPERATURES ACROSS CENTRAL AND SOUTHERN INDIANA TODAY AND IN THE SOUTH ON FRIDAY. TEMPERATURES COMBINED WITH RELATIVELY HIGH HUMIDITIES WILL RESULT IN DANGEROUSLY HIGH HEAT INDICES ACROSS THE SOUTHERN TWO THIRDS OF INDIANA. TEMPERATURES WILL SOAR INTO THE MIDDLE AND UPPER 90S THIS AFTERNOON AND WITH AFTERNOON HUMIDITIES OF 50 TO 55 PERCENT HEAT INDICIES WILL RISE INTO THE 105 TO 110 DEGREE RANGE. HEAT INDICES OF THIS MAGNITUDE CAN PRODUCE SUNSTROKE...HEAT CRAMPS OR HEAT EXHAUSTION AND MAY EVEN PRODUCE A HEAT STROKE IF PRECAUTIONS AGAINST PROLONGED PHYSICAL ACTIVITY ARE NOT TAKEN. THE ELDERLY...INFANTS AND THOSE IN POOR HEALTH ARE ESPECIALLY AFFECTED BY THE HEAT AND SHOULD STAY IN A SHADED AND PREFERABLY AIR CONDITIONED PLACE. IF YOU MUST BE OUTDOORS WEAR LIGHTWEIGHT LIGHT COLORED CLOTHING ...DRINK PLENTY OF WATER AND FREQUENTLY SEEK A SHADED AREA. RP
Special weather statement, Sep 6, 6:27 AM EST, 1 hour 46 minutes before
INDZALL-061500- SPECIAL WEATHER STATEMENT...SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE INDIANAPOLIS IN 626 AM EST THU SEP 6 1990 THERE IS THE POTENTIAL FOR SEVERE THUNDERSTORMS OVER EXTREME NORTHERN INDIANA LATER THIS AFTERNOON AND THIS EVENING. SEVERE THUNDERSTORMS CAN PRODUCE WIND GUSTS OF 58 MILES AN HOUR OR GREATER...AND OR HAIL THREE QUARTER INCH DIAMETER OR GREATER. RP
Special weather statement, Sep 6, 6:28 AM EST, 1 hour 45 minutes before
IND007>015-061500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 620 AM EST WED SEP 5 1990 ...EXCESSIVE HEAT AND HUMIDITY FOR CENTRAL AND SOUTHERN INDIANA TODAY AND SOUTHERN INDIANA ON FRIDAY... HIGH PRESSURE ANCHORED OVER THE SOUTHEAST UNITED STATES WILL CAUSE UNSEASONABLY HIGH TEMPERATURES ACROSS CENTRAL AND SOUTHERN INDIANA TODAY AND IN THE SOUTH ON FRIDAY. TEMPERATURES COMBINED WITH RELATIVELY HIGH HUMIDITIES WILL RESULT IN DANGEROUSLY HIGH HEAT INDICES ACROSS THE SOUTHERN TWO THIRDS OF INDIANA. TEMPERATURES WILL SOAR INTO THE MIDDLE AND UPPER 90S THIS AFTERNOON AND WITH AFTERNOON HUMIDITIES OF 50 TO 55 PERCENT HEAT INDICIES WILL RISE INTO THE 105 TO 110 DEGREE RANGE. HEAT INDICES OF THIS MAGNITUDE CAN PRODUCE SUNSTROKE...HEAT CRAMPS OR HEAT EXHAUSTION AND MAY EVEN PRODUCE A HEAT STROKE IF PRECAUTIONS AGAINST PROLONGED PHYSICAL ACTIVITY ARE NOT TAKEN. THE ELDERLY...INFANTS AND THOSE IN POOR HEALTH ARE ESPECIALLY AFFECTED BY THE HEAT AND SHOULD STAY IN A SHADED AND PREFERABLY AIR CONDITIONED PLACE. IF YOU MUST BE OUTDOORS WEAR LIGHTWEIGHT LIGHT COLORED CLOTHING ...DRINK PLENTY OF WATER AND FREQUENTLY SEEK A SHADED AREA. RP
Nearby
Severe Thunderstorm Warnings in Michigan, 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.