Alert archive / Michigan / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 87, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Jul 20, 2013, 1:00 AM EDT for Monroe County, Michigan. It was in force for 75 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 20, 2013, 1:00 AM EDT (05:00 UTC)
- Expired
- Jul 20, 2013, 2:15 AM EDT
- In force
- 75 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Monroe County, MI
The radar
The Detroit radar (KDTX), 87 km from the middle of the area, began a volume at 05:03 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.
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 5.0 hours before the alert went out and 89 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
- 1688 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1336 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 143 m²/s²
- 0-3 km storm-relative helicity
- 183 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.6
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 Detroit, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 19, 6:56 PM EDT, 6 hours 4 minutes earlier.
Area forecast discussion, Jul 19, 6:56 PM EDT, 6 hours 4 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 347 AM EDT FRI JUL 19 2013 MIZ047>049-053>055-060>063-068>070-075-076-082-083-200800- MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER- ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE- 347 AM EDT FRI JUL 19 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST MICHIGAN. .DAY ONE...TODAY AND TONIGHT AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT THROUGH THIS EVENING. PLEASE SEE THE LATEST FORECASTS AND STATEMENTS FOR DETAILS. THUNDERSTORMS ARE LIKELY TODAY AND TONIGHT. THERE IS A SLIGHT CHANCE OF SEVERE WEATHER WITH THESE THUNDERSTORMS. THE HIGHEST PROBABILITY OF SEVERE WEATHER TO OCCUR IS BETWEEN 2 PM AND 10 PM. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 70 MPH AND ONE INCH HAIL. ISOLATED TORNADOES ARE ALSO POSSIBLE. ANY THUNDERSTORM WILL BE CAPABLE OF PRODUCING TORRENTIAL RAINFALL. THUNDERSTORMS WILL MOVE TO THE EAST AT 30 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE OF THUNDERSTORMS SOUTH OF M-59 ON SATURDAY. THERE IS ALSO A CHANCE OF THUNDERSTORMS TUESDAY THROUGH WEDNESDAY. .SPOTTER INFORMATION STATEMENT... DISPATCHERS PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING. LCZ422-423-460-LEZ444-LHZ361>363-421-422-441>443-462>464-200800- ST. CLAIR RIVER-DETROIT RIVER-LAKE ST. CLAIR- MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI- LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT BEYOND 5 NM OFF SHORE- LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND 5NM OFF SHORE- LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF SHORE- OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER SAGINAW BAY-INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI- PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI- PORT SANILAC TO PORT HURON MI- LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE- LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE- LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE- 347 AM EDT FRI JUL 19 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE HURON AND LAKE ST CLAIR. .DAY ONE...TODAY AND TONIGHT AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT THROUGH THIS EVENING. PLEASE SEE THE LATEST FORECASTS AND STATEMENTS FOR DETAILS. A SMALL CRAFT ADVISORY IS IN EFFECT FOR THE NEARSHORE WATERS OF LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH...INCLUDING SAGINAW BAY THROUGH THE EVENING. REFER TO THE LATEST MARINE FORECAST PRODUCTS FOR DETAILS. THUNDERSTORMS ARE LIKELY TODAY AND TONIGHT. THERE IS A SLIGHT CHANCE OF SEVERE WEATHER WITH THESE THUNDERSTORMS. THE HIGHEST PROBABILITY OF SEVERE WEATHER TO OCCUR IS BETWEEN 2 PM AND 10 PM. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 70 MPH AND ONE INCH HAIL. ISOLATED TORNADOES ARE ALSO POSSIBLE. ANY THUNDERSTORM WILL BE CAPABLE OF PRODUCING TORRENTIAL RAINFALL. THUNDERSTORMS WILL MOVE TO THE EAST AT 25 KNOTS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE OF THUNDERSTORMS ACROSS LAKE ST CLAIR AND THE MICHIGAN WATERS OF LAKE ERIE ON SATURDAY. THERE IS ALSO A CHANCE OF THUNDERSTORMS ACROSS ALL MARINE WATERS TUESDAY THROUGH WEDNESDAY. .SPOTTER INFORMATION STATEMENT... DISPATCHERS PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING. MR YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE).
In the hours before
Local storm report, Jul 19, 7:24 PM EDT, 5 hours 36 minutes before
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</html>Local storm report, Jul 19, 7:26 PM EDT, 5 hours 34 minutes before
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</html>Local storm report, Jul 19, 7:33 PM EDT, 5 hours 27 minutes before
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</html>Local storm report, Jul 19, 7:44 PM EDT, 5 hours 16 minutes before
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</html>Local storm report, Jul 19, 7:52 PM EDT, 5 hours 8 minutes before
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</html>The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 8:04 PM EDT | Special Marine Warning | DTX | 116 min | |
| Jul 19, 8:24 PM EDT | Severe Thunderstorm Warning | DTX | Wayne | 36 min |
| Jul 19, 8:27 PM EDT | Severe Thunderstorm Warning | DTX | Macomb, Oakland | 48 min |
| Jul 19, 8:36 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee | 54 min |
| Jul 19, 8:40 PM EDT | Severe Thunderstorm Warning | DTX | Saint Clair | 65 min |
| Jul 19, 8:43 PM EDT | Special Marine Warning | DTX | 62 min | |
| Jul 19, 8:55 PM EDT | Severe Thunderstorm Warning | DTX | Monroe, Wayne | 80 min |
| Jul 19, 9:06 PM EDT | Severe Thunderstorm Warning | DTX | Washtenaw | 54 min |
| Jul 19, 9:16 PM EDT | Special Marine Warning | DTX | 119 min | |
| Jul 19, 9:52 PM EDT | Special Marine Warning | DTX | 53 min | |
| Jul 19, 9:55 PM EDT | Severe Thunderstorm Warning | DTX | Midland | 50 min |
| Jul 19, 10:06 PM EDT | Special Marine Warning | DTX | 114 min | |
| Jul 19, 10:47 PM EDT | Severe Thunderstorm Warning | DTX | Huron | 58 min |
| Jul 19, 11:02 PM EDT | Special Marine Warning | DTX | 88 min | |
| Jul 19, 11:22 PM EDT | Severe Thunderstorm Warning | DTX | Livingston | 38 min |
| Jul 19, 11:37 PM EDT | Severe Thunderstorm Warning | DTX | Washtenaw | 53 min |
| Jul 19, 11:41 PM EDT | Severe Thunderstorm Warning | DTX | Oakland | 64 min |
| Jul 19, 11:55 PM EDT | Severe Thunderstorm Warning | DTX | Macomb, Saint Clair | 65 min |
| Jul 20, 12:07 AM EDT | Special Marine Warning | DTX | 2 hr | |
| Jul 20, 12:30 AM EDT | Severe Thunderstorm Warning | DTX | Washtenaw, Wayne | 75 min |
| Jul 20, 1:18 AM EDT | Severe Thunderstorm Warning | DTX | Lenawee | 72 min |
| Jul 20, 1:23 AM EDT | Special Marine Warning | DTX | 2 hr | |
| Jul 20, 1:46 AM EDT | Severe Thunderstorm Warning | DTX | Monroe | 74 min |
| Jul 20, 2:26 AM EDT | Areal Flood Advisory | DTX | Lenawee, Monroe | 4 hr |
| Jul 20, 3:59 AM EDT | Small Craft Advisory | DTX | 28 hr |
Nearby
Severe Thunderstorm Warnings in Michigan, 2013Every severe thunderstorm warning in 2013
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.