Alert archive / Michigan / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 9, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Jun 30, 2004, 3:10 PM EDT for Alcona County, Michigan. It was in force for 65 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
- Jun 30, 2004, 3:10 PM EDT (19:10 UTC)
- Expired
- Jun 30, 2004, 4:15 PM EDT
- In force
- 65 min
- Issued by
- NWS Gaylord, MI
- Area
- Counties, with a storm outline in the text
County Alcona County, MI
The radar
The NCL Michigan radar (KAPX), 113 km from the middle of the area, began a volume at 19:11 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 30, 3:16 PM EDT | HAIL 1 | 3 Sw Harrisville, MI | TRAINED SPOTTER OBSERVED 1 INCH HAIL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Alpena, MI (KAPX), launched 12:00Z, 7.2 hours before the alert went out and 85 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
- 15 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 1479 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
053
WUUS53 KAPX 301910
SVRAPX
MIC001-302015-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
309 PM EDT WED JUN 30 2004
THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
ALCONA COUNTY IN NORTHERN LOWER MICHIGAN
* UNTIL 415 PM EDT
* AT 307 PM EDT...A SPOTTER REPORTED A LINE OF SEVERE THUNDERSTORMS
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM BLACK
RIVER TO 7 MILES NORTH OF OSCODA...MOVING EAST AT 15 MPH.
* THESE SEVERE THUNDERSTORMS WILL BE NEAR...
HARRISVILLE AROUND 315 PM EDT...
TRAINED SPOTTER NEAR BLACK RIVER REPORTED THREE QUARTER INCH HAIL AT
308 PM.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL. ALL
THUNDERSTORMS PRODUCE DEADLY LIGHTNING. REMAIN INDOORS AWAY FROM
WINDOWS UNTIL THESE STORMS HAVE PASSED. IF CAUGHT OUTDOORS...STAY
AWAY FROM TALL OBJECTS AND MOVE TO A PLACE OF SHELTER.
BOATERS ON AREA LAKES SHOULD MOVE TO SHORE AND SEEK SHELTER NOW. DO
NOT GET CAUGHT ON THE WATER IN A THUNDERSTORM.
LAT...LON 4461 8332 4452 8331 4451 8332 4452 8345
4485 8343 4485 8331 4481 8329 4476 8330
4473 8328 4466 8329 4465 8328
$$The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 3:14 PM EDT | Special Marine Warning | APX | 61 min | |
| Jun 30, 3:20 PM EDT | Severe Thunderstorm Warning | APX | Iosco | 55 min |
| Jun 30, 4:07 PM EDT | Special Marine Warning | APX | 53 min | |
| Jun 30, 4:14 PM EDT | Severe Thunderstorm Warning | APX | Iosco | 46 min |
| Jun 30, 4:54 PM EDT | Severe Thunderstorm Warning | APX | Chippewa | 81 min |
| Jun 30, 4:57 PM EDT | Special Marine Warning | APX | 63 min | |
| Jun 30, 5:11 PM EDT | Special Marine Warning | APX | 64 min | |
| Jun 30, 7:24 PM EDT | Special Marine Warning | APX | 66 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.