Alert archive / Michigan / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 7, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Jul 18, 1990, 1:28 PM EDT for Gladwin County, Michigan. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- Jul 18, 1990, 1:28 PM EDT (17:28 UTC)
- Expired
- Jul 18, 1990, 2:00 PM EDT
- In force
- 32 min
- Issued by
- NWS Detroit, MI
- Area
- Whole counties
County Gladwin 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, 5.5 hours before the alert went out and 161 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
- NaN m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 96 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 KHTL 181732
SVRHTL
MIC051-181800-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
128 PM EDT WED JUL 18 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 200 PM EDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN NORTH CENTRAL MICHIGAN
GLADWIN COUNTY
AT 125 PM EDT...RADAR INDICATED A SEVERE THUNDERSTORM OVER CENTRAL
GLADWIN COUNTY NEAR THE CITY OF GLADWIN. THE STORM WAS MOVING EAST
AT ABOUT 30 MILES AN HOUR AND SHOULD BE EAST OF GLADWIN BY 200 PM.
PEOPLE IN THE WARNED AREA SHOULD GET INTO A REINFORCED SHELTER AND
PREPARE FOR DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN AND
DANGEROUS LIGHTNI!NG.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, Jul 18, 12:06 PM EDT, 1 hour 22 minutes before
MIZ039-181600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLINT MI 1200 PM EDT TUE JUL 18 1990 ...THUNDERSTORMS NEAR NORTHERN ARENAC COUNTY... AT 1155 AM EDT...RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN AND DANGEROUS LIGHTING AND POSSIBLY SMALL HAIL WERE BUILDING OVER THE NORTH BORDER OF ARENAC COUNTY. THESE THUNDERSTORMS EXTEND FROM MANISTEE TO TAWAS CITY. MOVEMENT WAS WEST TO EAST AT 35 TO 40 MPH. PERSONS IN NORTHERN ARENAC COUNTY SHOULD BE PREPARED TO TAKE SHELTER IF THREATENING WEATHER DEVELOPS. FITZGERALD
Special weather statement, Jul 18, 1:21 PM EDT, 7 minutes before
MIZ039-181600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLINT MI 110 PM EDT TUE JUL 18 1990 ...THUNDERSTORMS IN NORTHERN ARENAC COUNTY... AT 1255 AM EDT...RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN AND DANGEROUS LIGHTING AND POSSIBLY LARGE HAIL WERE LOCATED IN ARENAC COUNTY. AT 1200 PM HALF INCH HAIL WAS REPORTED AT STERLING 40 MILE NORTH OF SAGINAW MI. THESE THUNDERSTORMS SLOWLY MOVING SOUTHEAST AT 35 TO 40 MPH. PERSONS IN NORTHERN ARENAC COUNTY SHOULD BE PREPARED TO TAKE SHELTER IF THREATENING WEATHER DEVELOPS. FITZGERALD
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 8:55 AM EDT | Severe Thunderstorm Warning | DTX | Crawford | 65 min |
| Jul 18, 1:54 PM EDT | Severe Thunderstorm Warning | DTX | Arenac, Bay | 66 min |
| Jul 18, 3:13 PM EDT | Severe Thunderstorm Warning | DTX | Sanilac, Tuscola | 62 min |
| Jul 18, 3:39 PM EDT | Severe Thunderstorm Warning | DTX | Midland | 46 min |
| Jul 18, 5:00 PM EDT | Severe Thunderstorm Warning | DTX | Genesee, Tuscola | 45 min |
| Jul 18, 5:18 PM EDT | Tornado Warning | DTX | Genesee | 27 min |
| Jul 18, 6:00 PM EDT | Severe Thunderstorm Warning | DTX | Macomb, Oakland, Saint Clair | 40 min |
| Jul 18, 6:00 PM EDT | Severe Thunderstorm Warning | DTX | Livingston | 40 min |
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.