Alert archive / Michigan / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 15, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Aug 27, 1990, 7:09 PM EDT for Alpena County, Michigan. It was in force for 66 min. 2 reports 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
- Aug 27, 1990, 7:09 PM EDT (23:09 UTC)
- Expired
- Aug 27, 1990, 8:15 PM EDT
- In force
- 66 min
- Issued by
- NWS Gaylord, MI
- Area
- Whole counties
County Alpena County, MI
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 |
|---|---|---|---|
| Aug 27, 7:50 PM EDT | Thunderstorm Wind 0 | Alpena, MI | |
| Aug 27, 8:20 PM EDT | Thunderstorm Wind 0 | Alpena, MI |
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
Sault Ste Marie, MI (KSSM), launched 12:00Z, 11.2 hours before the alert went out and 169 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
- 1198 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 100 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 KAPN 272309
SVRAPN
MIC007-280015-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE ALPENA MI
709 PM EDT MON AUG 27 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 815 PM EDT FOR
PEOPLE IN THE FOLLOWING COUNTY
IN THE NORTHEAST PART OF LOWER MICHIGAN
ALPENA
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTY JUST MENTIONED
AT 700 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED A SEVERE
THUNDERSTORM NEAR LACHINE OR 15 MILES WEST OF ALPENA. THE STORM
WAS MOVING EAST AT 30 MILES AN HOUR. IF YOU ARE IN OR NEAR ALPENA
TAKE COVER IMMEDIATELY.
IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORCED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VERY HEAVY
RAIN AND LIGHTNING.
SHARPEWhat 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, Aug 27, 6:02 PM EDT, 1 hour 7 minutes before
MIZ047-048>066-068-272300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALPENA MI 555 PM EDT THU AUG 23 1990 ... SEVERE THUNDERSTORM WATCH CONTINUES FOR NORTHEAST MICHIGAN THIS EVENING... AT 550 PM NATIONAL WEATHER SERVICE RADAR IN ALPENA INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS MOVING INTO NORTHEAST LOWER MICHIGAN. THE LEADING EDGE OF RAIN EXTENDED SOUTHWEST FROM ROGERS CITY...AROUND 30 MILES NORTHWEST OF ALPENA...TO NEAR LEWISTON...40 MILES WEST OF ALPENA. THUNDERSTORMS WITH HEAVY RAIN WERE OVER EXTREME NORTHERN LOWER MICHIGAN...NEAR INDIAN RIVER...AND ALSO NEAR THE STRAITS OF MACKINAW. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT AROUND 35 MILES AN HOUR... AND WILL BQE MOVING INTO THE VICINITY OF ONAWAY AND MILLERSBURG BY 630 THIS EVENING. LISTEN TO NATIONAL WEATHER SERVICE RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. CAMPBELL
Special weather statement, Aug 27, 6:21 PM EDT, 48 minutes before
MIZ137-272225- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUGHTON LAKE MI 615 PM EDT MON AUG 27 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL MIDNIGHT EDT... AT 615 PM EDT...THE HOUGHTON LAKE RADAR SHOWED A CLUSTER OF VERY STRONG THUNDERSTORMS IN OTSEGO COUNTY...JUST EAST OF THE CITY OF GAYLORD...45 MILES NORTH OF HOUGHTON LAKE. THESE STORMS WERE PART OF A LARGE AREA THUNDERSTORMS MOVING EAST AT 25 MILES AN HOUR ACROSS NORTHERN LOWER MICHIGAN. IF YOUR ARE IN OR NEAR THIS AREA BE ALERT AND BE PREPARED TO MOVE TO A PLACE OF SAFETY. THESE STORMS WILL PRODUCE STRONG GUSTY WINDS... DEADLY LIGHTING...AND HEAVY RAINS. ALL PERSONS IN NORTHERN LOWER MICHIGAN SHOULD BE ALERT AND A^WARE THAT POTENTIALLY SEVERE THUNDERSTORMS ARE POSSIBLE UNITL MIDNIGHT.
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 5:48 PM EDT | Severe Thunderstorm Warning | APX | Charlevoix, Cheboygan, Emmet | 57 min |
| Aug 27, 6:23 PM EDT | Severe Thunderstorm Warning | APX | Alpena, Montmorency | 37 min |
| Aug 27, 6:50 PM EDT | Severe Thunderstorm Warning | APX | Cheboygan, Emmet | 60 min |
| Aug 27, 6:51 PM EDT | Severe Thunderstorm Warning | APX | Presque Isle | 69 min |
| Aug 27, 7:25 PM EDT | Severe Thunderstorm Warning | APX | Montmorency | 35 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.