Alert archive / Michigan / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 21, NWS Gaylord, MI

July 13, 2004Cheboygan County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jul 13, 2004, 6:35 PM EDT for Cheboygan County, Michigan. It was in force for 40 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 13, 2004, 6:35 PM EDT (22:35 UTC)
Expired
Jul 13, 2004, 7:15 PM EDT
In force
40 min
Issued by
NWS Gaylord, MI
Area
Counties, with a storm outline in the text

County Cheboygan County, MI

The radar

The NCL Michigan radar (KAPX), 75 km from the middle of the area, began a volume at 22:36 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jul 13, 6:40 PM EDTHAIL 0.758 N Indian River, MI

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 13, 4:05 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 10.6 hours before the alert went out and 166 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 2004-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 654 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 2004-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
654 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
1088 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KAPX 132235
SVRAPX
MIC031-132315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
635 PM EDT TUE JUL 13 2004

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

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

* UNTIL 715 PM EDT

* AT 632 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
  TOPINABEE...OR ABOUT 8 MILES EAST OF PELLSTON...MOVING EAST AT 30
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  WOLVERINE...TOWER...MULLET LAKE...INDIAN RIVER... 
  CHEBOYGAN...BLACK LAKE...ALVERNO...ALOHA AND AFTON.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL. ALL
THUNDERSTORMS PRODUCE DEADLY LIGHTNING. REMAIN INDOORS AWAY FROM
WINDOWS UNTIL THIS STORM HAS PASSED. IF CAUGHT OUTDOORS...STAY AWAY
FROM TALL OBJECTS AND MOVE TO A PLACE OF SHELTER.

LAT...LON 4563 8424 4521 8425 4521 8473 4543 8472
      4561 8470 4566 8448 4566 8442 4566 8430
      4564 8427 4564 8421

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 3:14 PM EDTSevere Thunderstorm WarningAPXPresque Isle46 min
Jul 13, 3:21 PM EDTSpecial Marine WarningAPX54 min
Jul 13, 3:21 PM EDTSpecial Marine WarningAPX54 min
Jul 13, 3:46 PM EDTSevere Thunderstorm WarningAPXMissaukee, Wexford59 min
Jul 13, 3:55 PM EDTSevere Thunderstorm WarningAPXCrawford35 min
Jul 13, 4:08 PM EDTSpecial Marine WarningAPX97 min
Jul 13, 4:08 PM EDTSpecial Marine WarningAPX97 min
Jul 13, 4:08 PM EDTSpecial Marine WarningAPX97 min
Jul 13, 4:15 PM EDTSpecial Marine WarningAPX90 min
Jul 13, 4:28 PM EDTSevere Thunderstorm WarningAPXCrawford, Roscommon47 min
Jul 13, 4:52 PM EDTSevere Thunderstorm WarningAPXMissaukee38 min
Jul 13, 5:21 PM EDTSevere Thunderstorm WarningAPXAlcona, Alpena54 min
Jul 13, 5:36 PM EDTSevere Thunderstorm WarningAPXEmmet39 min
Jul 13, 5:40 PM EDTSpecial Marine WarningAPX95 min
Jul 13, 5:40 PM EDTSpecial Marine WarningAPX95 min
Jul 13, 5:40 PM EDTSpecial Marine WarningAPX95 min
Jul 13, 5:45 PM EDTSpecial Marine WarningAPX2 hr
Jul 13, 5:56 PM EDTSevere Thunderstorm WarningAPXPresque Isle49 min
Jul 13, 5:58 PM EDTSpecial Marine WarningAPX92 min
Jul 13, 6:09 PM EDTSpecial Marine WarningAPX96 min
Jul 13, 6:38 PM EDTSevere Thunderstorm WarningAPXOtsego52 min
Jul 13, 7:50 PM EDTSpecial Marine WarningAPX55 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2004Every severe thunderstorm warning in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.