Alert archive / Michigan / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 21, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at May 31, 2008, 12:13 PM EDT for Saint Clair County, Michigan. It was in force for 34 min. 3 reports 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
- May 31, 2008, 12:13 PM EDT (16:13 UTC)
- Expired
- May 31, 2008, 12:47 PM EDT
- In force
- 34 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
County Saint Clair County, MI
The radar
The Detroit radar (KDTX), 86 km from the middle of the area, began a volume at 16:13 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 |
|---|---|---|---|
| May 31, 12:25 PM EDT | HAIL 0.88 | 2 E Ruby, MI | TREE LIMBS DOWN. ESTIMATED WIND SPEED OF 60 MPH. |
| May 31, 12:34 PM EDT | MARINE TSTM WIND 40 | Port Huron, MI | |
| May 31, 12:35 PM EDT | HAIL 0.88 | 1 N Port Huron, MI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 4.2 hours before the alert went out and 82 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
- 624 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 585 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS53 KDTX 311613
SVRDTX
MIC147-311715-
/O.NEW.KDTX.SV.W.0021.080531T1613Z-080531T1715Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1213 PM EDT SAT MAY 31 2008
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN ST. CLAIR COUNTY IN SOUTHEAST MICHIGAN
* UNTIL 115 PM EDT
* AT 1209 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING UP TO ONE INCH DIAMETER
HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED 6
MILES SOUTHEAST OF YALE...MOVING EAST AT 31 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
RUBY BY 1220 PM EDT...
BLAINE BY 1225 PM EDT...
NORTH STREET BY 1230 PM EDT...
FORT GRATIOT BY 1240 PM EDT...
THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
YALE... PORT HURON... LAKEPORT...
EMMETT...
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
LAT...LON 4293 8244 4294 8278 4316 8281 4317 8248
4315 8248 4314 8247 4308 8246 4300 8240
TIME...MOT...LOC 1613Z 269DEG 27KT 4306 8269
$$
SC /2 follow-up statements
000
WWUS53 KDTX 311624
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1224 PM EDT SAT MAY 31 2008
MIC147-311715-
/O.CON.KDTX.SV.W.0021.000000T0000Z-080531T1715Z/
ST. CLAIR MI-
1224 PM EDT SAT MAY 31 2008
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR NORTHEASTERN ST. CLAIR COUNTY...
AT 1221 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING UP TO ONE INCH DIAMETER
HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED 7
MILES SOUTHWEST OF LAKEPORT...MOVING EAST AT 28 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
NORTH STREET BY 1230 PM EDT...
FORT GRATIOT BY 1240 PM EDT...
AN ADDITIONAL THUNDERSTORM...LOCATED OVER EASTERN LAPEER COUNTY WILL
MOVE INTO THE REGION AROUND 1240 PM. THIS STORM MAY ALSO PRODUCE
DAMAGING WINDS AND LARGE HAIL.
THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
YALE... PORT HURON... LAKEPORT...
EMMETT...
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
LAT...LON 4293 8244 4294 8278 4316 8281 4317 8248
4315 8248 4314 8247 4308 8246 4300 8240
TIME...MOT...LOC 1624Z 274DEG 24KT 4305 8258
$$
SC000
WWUS53 KDTX 311647
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1246 PM EDT SAT MAY 31 2008
MIC147-311656-
/O.CAN.KDTX.SV.W.0021.000000T0000Z-080531T1715Z/
ST. CLAIR MI-
1246 PM EDT SAT MAY 31 2008
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ST. CLAIR COUNTY
IS CANCELLED...
NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE SEVERE THUNDERSTORM
THAT PROMPTED THE WARNING EXITED THE COUNTY. THEREFORE...THE WARNING
HAS BEEN CANCELLED.
AT 1246 PM RADAR DID INDICATE ANOTHER THUNDERSTORM NEAR
YALE...MOVING EAST AT 30 MPH. THIS STORM IS MUCH WEAKER AND JUST HAS
THE POTENTIAL TO PRODUCE WINDS TO 30 MPH AND PEA SIZED HAIL.
LAT...LON 4293 8244 4294 8278 4316 8281 4317 8248
4315 8248 4314 8247 4308 8246 4300 8240
TIME...MOT...LOC 1646Z 269DEG 27KT 4306 8235
$$
SCThe office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 12:01 PM EDT | Special Marine Warning | DTX | 72 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2008Every severe thunderstorm warning in 2008
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.