Alert archive / Michigan / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 4, NWS Gaylord, MI

May 8, 2000Alpena County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at May 8, 2000, 8:58 PM EDT for Alpena County, Michigan. It was in force for 47 min. 1 report 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
May 8, 2000, 8:58 PM EDT (00:58 UTC)
Expired
May 8, 2000, 9:45 PM EDT
In force
47 min
Issued by
NWS Gaylord, MI
Area
Whole counties

County Alpena County, MI

What was reported inside it

TimeReportWhereRemark
May 8, 9:30 PM EDTHail 0.75Alpena, 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.

The nearest sounding before it

Alpena, MI (KAPX), launched 00:00Z, 1.0 hours before the alert went out and 83 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.

Skew-T log-pSkew-T log-p diagram, Alpena, MI at 00:00Z on 2000-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1123 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Alpena, MI at 00:00Z on 2000-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1123 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
1051 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
214 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KAPX 090059
SVRAPN
MIC007-090145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
858 PM EDT MON MAY 8 2000

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ALPENA COUNTY IN NORTHERN LOWER MICHIGAN

* UNTIL 945 PM EDT

* AT 852 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES NORTHEAST OF INTERSECTION OF M-32 AND
  M-33...OR ABOUT 8 MILES EAST OF ATLANTA...MOVING NORTHEAST AT 25
  MPH.

* THE SEVERE THUNDERSTORM WILL REACH...
  7 MILES NORTHWEST OF SPRATT AROUND 910 PM EDT
  LACHINE AROUND 915 PM EDT
  ALPENA AROUND 930 PM EDT
  CATHRO AROUND 930 PM EDT

THIS STORM PRODUCED 60 MPH WINDS AND DIME SIZE HAIL IN ATLANTA IN 
MONTMORENCY COUNTY AROUND 850 PM.

REMAIN INDOORS AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. THIS
STORM IS CAPABLE OF PRODUCING WIND GUSTS BETWEEN 60 AND 70 /MPH ALONG
WITH DIME SIZED HAIL. WINDS THIS HIGH CAN DOWN POWER LINES AND SMALL
TREES.

FARINA

The office that day

Everything else NWS Gaylord, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 8, 8:41 PM EDTSevere Thunderstorm WarningAPXMontmorency49 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2000Every severe thunderstorm warning in 2000

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.