Alert archive / Michigan / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 69, NWS Gaylord, MI

August 14, 1996Missaukee County, Roscommon County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Aug 14, 1996, 2:19 PM EDT for Missaukee County, Roscommon County, Michigan. It was in force for 56 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
Aug 14, 1996, 2:19 PM EDT (18:19 UTC)
Expired
Aug 14, 1996, 3:15 PM EDT
In force
56 min
Issued by
NWS Gaylord, MI
Area
Whole counties

Counties Missaukee County, MI, Roscommon County, MI

What was reported inside it

TimeReportWhereRemark
Aug 14, 3:05 PM EDTHail 1Roscommon Airport, 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 12:00Z, 6.3 hours before the alert went out and 210 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 12:00Z on 1996-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 218 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 12:00Z on 1996-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.1939Sfc1 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
218 J/kg
Mixed-layer CIN
-186 J/kg
Mixed-layer LCL
801 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAPN 141823 COR
SVRAPN
MIC113-143-141915-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
219 PM EDT WED AUG 14 1996

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONSS...

IN  MICHIGAN

   ...MISSAUKEE COUNTY...ROSCOMMON COUNTY

AT 215 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER
EASTERN MISSAUKEE COUNTY NEAR MERRIT. THIS STORM WAS MOVING NORTHEAST
AT 20 MPH AND WILL AFFECT THE COMMUNITIES OF HIGGINS LAKE AT 3 PM AND
ROSCOMMON AROUND 315 PM.

LARGE HAIL AROUND 1 INCH IN DIAMETER AND HEAVY RAIN ARE LIKELY WITH THIS
STORM.

SEVERE THUNDNERSTORMS PRODUCE DAMAGE TO STRUCTURES...DESTRUCTIVE
HAIL...AND DEADLY LIGHTNING. MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME.

BAK

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.

NWS Gaylord, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 13, 3:08 PM EDT, 23 hours 11 minutes earlier.

Area forecast discussion, Aug 13, 3:08 PM EDT, 23 hours 11 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GAYLORD MI
308 PM EDT TUE 13 1996

LATEST SFC PLOTS SHOW STNRY FNTL BNDRY OVR SRN 1/3RD OF LWR MI.
CONVECTION HAS FIRED IN THIS AREA W/ LOW LVL LIFT AND GOOD INSTAB.
CONVCTN HAS BEEN HARD TO COME BY ACRS CWA BECAUSE 1) XTNSVE FNTL
CLDNESS IN NC LWR HAS KEPT TEMPS DOWN A BIT...ALTHOUGH HTL HAS NOW GONE
SCT SO ONCE TEMPS REACH 80+ W/ DWPTS IN LOW 60S THINGS COULD START TO
FIRE...AND 2) DRY AIR ENTRAINING FROM HIGH PRES N OF LK SUPERIOR HAS
KEPT DWPTS DOWN INTO THE LOW 50S IN NE LWR...WELL BELOW MOS (SORRY DTX
FOR VOTE TO ADD IN ISLD TSTMS THIS AFT). AS FAR AS FCST PERIOD IS
CONCERNED...WOULD LOOK FOR LOW PRES CURRENTLY IN NRN MN TO TRACK ALONG
STNRY FNT...LIFTING THE FNT N A LITTLE AS A WARM FNT AS LOW SLIGHTLY
DEEPENS...THEN FINALLY REACH (ROUGHLY) AN MBL-HTL-OSC LINE LATE
WED/EARLY THURS.

ALL 3 SHORT TERM MODELS FAIRLY SIMILAR THROUGH 48 HRS...PLACING H5 LOW
AND ASSCD VORT MAX OVR NRN LWR MI BY 12Z THU. SYSTEM VIRTUALLY STACKED
BY THU MORNING AS WELL WITH SFC LOW INTO NE LWR MI BY THURS MORNING.
MAIN QUESTION THIS FCST PERIOD WILL BE TIMING OF CLDS/PCPN INTO AREA...
AS WELL AS TSTM (SVR?) CHCS.

GIVEN TRACK OF SFC LOW...WHICH HAS BEEN CONSISTENT THUS FAR W/ PREVIOUS
2 OR 3 MODEL RUNS...WOULD NOT LOOK FOR SVR CHCS TO REACH CWA. LIMITING
FACTORS ARE THE TYPICAL ONES WITH LOW IVOF OR S OF REGION (I.E. WARM
FRONT OVER OR TO THE SOUTH OF THE AREA)...NOT ENOUGH MSTR/THTE TRANSPORT
TYPICALLY FOUND S OF WRM FNT BUT INSTEAD MORE COMMA HEAD TYPE CLDNESS/
PCPN FROM LOW PRESSURE NWRD. BEST COLD CONVEYOR BELT/COMMA HEAD MSTR
WILL BE ACRS XTRM NRN LWR AND ERN UPR...AS SEEN W/ GRIDDED LAVE OF RH
BTWN 1000 AND 700 MB. THUS HIGHER POPS (LIKELY CAT) JUSTIFIED IN THESE
AREAS (PLN-GLR-APN NORTHWARD) WED AND WED NIGHT. AS FAR AS AREAS S OF
THIS LINE (TVC-HTL-OSC SOUTH) WOULD LOOK FOR MORE SCT AREAS OF PCPN W/
BETTER CHC OF TSTMS. BEST CHC OF ANYTHING SVR WILL BE IN FAR SRN PRTNS
OF CWA...ALTHOUGH ATTM DON/T EVEN THINK THIS AREA WILL BE FAR ENOUGH S
(IF AT ALL) OF WARM FNT AND THUS BREAK OUT OF OVC CLD COVER AND INTO
REAL GOOD SS.

YET AGAIN...W/MODELS PRETTY SIMILAR...THINK THAT TEMPS WON/T SWAY TOO
FAR FROM FWC/FAN MJOS.

HURLEY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 2:36 PM EDTSevere Thunderstorm WarningAPXOtsego54 min
Aug 14, 4:35 PM EDTSevere Thunderstorm WarningAPXCheboygan, Emmet40 min
Aug 14, 4:47 PM EDTTornado WarningAPXCheboygan, Emmet58 min
Aug 14, 5:33 PM EDTSevere Thunderstorm WarningAPXCharlevoix, Cheboygan, Otsego57 min
Aug 14, 5:36 PM EDTSevere Thunderstorm WarningAPXOscoda54 min
Aug 14, 5:53 PM EDTTornado WarningAPXCheboygan, Otsego67 min
Aug 14, 7:12 PM EDTSevere Thunderstorm WarningAPXAlpena48 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1996Every severe thunderstorm warning in 1996

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.