Alert archive / Michigan / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 3, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Apr 12, 1994, 10:19 PM EDT for Branch County, Hillsdale County, Michigan. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Apr 12, 1994, 10:19 PM EDT (02:19 UTC)
- Expired
- Apr 12, 1994, 10:52 PM EDT
- In force
- 33 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Whole counties
Counties Branch County, MI, Hillsdale County, MI
The nearest sounding before it
Detroit, MI (KFNT), launched 00:00Z, 2.3 hours before the alert went out and 146 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 510 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 368 m²/s²
- 0-3 km storm-relative helicity
- 373 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
In the hours before
Special weather statement, Apr 12, 8:07 PM EDT, 2 hours 12 minutes before
MIZ051-056>058-064-065-071-072-130100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 807 PM EDT TUE APR 12 1994 ...THUNDERSTORMS OVER SOUTHWEST LOWER MICHIGAN... AT 802 PM EDT... WEATHER RADAR INDICATED A LINE OF SHOWERS AND THUNDERSTORMS OVER THE COMMUNITIES OF BURNIPS... ALLEGAN... MERSON AND LAWTON... FROM 15 MILES SOUTHWEST OF GRAND RAPIDS TO 15 MILES SOUTHWEST OF KALAMAZOO. THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MPH AND SHOULD REACH U.S. 131... CUTLERVILLE... SHELBYVILLE AND KALAMAZOO BETWEEN 820 AND 830 PM. THESE STORMS WILL LIKELY PRODUCE BRIEF HEAVY RAIN... GUSTY WINDS AND POSSIBLY HAIL. PEOPLE IN THIS AREA ARE URGED TO STAY ALERT FOR RAPIDLY CHANGING WEATHER. PRACTICE LIGHTNING SAFETY BY MOVING INDOORS UNTIL THE STORMS PASS. HENDRICKS
Special weather statement, Apr 12, 8:37 PM EDT, 1 hour 42 minutes before
MIZ051-056>058-064-065-071-072-130200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 837 PM EDT TUE APR 12 1994 ...THUNDERSTORMS DEVELOPING RAPIDLY OVER SOUTHWEST LOWER MICHIGAN... AT 837 PM EDT... WEATHER RADAR INDICATED A LINE OF THUNDERSTORMS BETWEEN GRAND RAPIDS AND KALAMAZOO MOVING NORTHEAST AT 30 MPH. THE HEAVIEST THUNDERSTORM WAS LOCATED 20 MILES SOUTHWEST OF KALAMAZOO NEAR MARCELLUS. THIS STORM WILL REACH SCHOOLCRAFT BY 845 PM. PEA-SIZED TO 1/2 INCH DIAMETER HAIL... DEADLY LIGHTNING... AND WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE STORMS. DRIVERS ENCOUNTERING THUNDERSTORMS THIS EVENING SHOULD BE AWARE THAT FLOODING OF LOW LYING AREAS SUCH AS UNDERPASSE@S MAY OCCUR. ALSO REMEMBER THAT HEAVY RAIN CAN REDUCE VISIBILITIES SIGNIFICANTLY. WHEN THUNDERSTORMS PASS OVERHEAD... THE INTERIOR OF A STURDY BUILDING PROVIDES THE BEST PROTECTION AGAINST THE DANGERS OF LIGHTNING. HENDRICKS
Special weather statement, Apr 12, 8:55 PM EDT, 1 hour 24 minutes before
MIZ051-056>058-064-065-071-072-130130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 855 PM EDT TUE APR 12 1994 ...THUNDERSTORMS MOVING THROUGH SOUTHWEST LOWER MICHIGAN... AT 850 PM EDT... WEATHER RADAR SHOWED A BROKEN LINE OF THUNDERSTORMS EXTENDING FROM 15 MILES NORTHEAST OF GRAND RAPIDS NEAR ROCKFORD... TO SCHOOLCRAFT... 15 MILES SOUTH OF KALAMAZOO. THE MOST INTENSE THUNDERSTORMS WERE LOCATED OVER KALAMAZOO COUNTY NEAR SCHOOLCRAFT AND PARCHMENT. THESE STORMS WILL REACH HICKORY CORNERS AND VICKSBURG BETWEEN 900 AND 905 PM. PEA-SIZED TO 1/2 INCH DIAMETER HAIL... DEADLY LIGHTNING... AND WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE STORMS. LIGHTNING IS ONE OF THE TOP WEATHER KILLERS IN THE COUNTRY. IF YOU ARE CAUGHT OUTSIDE.. DO NOT STAND UNDERNEATH A TALL ISOLATED TREE OR A TELEPHONE POLE. AVOID PROJECTING ABOVE THE SURROUNDING LANDSCAPE. FOR EXAMPLE.. DO NOT STAND ON A HILL OR INCLINE. IN A FOREST... SEEK SHELTER IN A LOW AREA UNDER A THICK GROWTH OF SMALL TREES. IN OPEN AREAS... GO TO A LOW PLACE... SUCH AS A RAVINE OR VALLEY. HENDRICKS
Special weather statement, Apr 12, 9:30 PM EDT, 49 minutes before
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</html>Special weather statement, Apr 12, 9:53 PM EDT, 26 minutes before
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</html>The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 8:48 PM EDT | Severe Thunderstorm Warning | GRR | Branch | 27 min |
| Apr 12, 9:15 PM EDT | Severe Thunderstorm Warning | GRR | Branch | 45 min |
| Apr 13, 1:10 AM EDT | Severe Thunderstorm Warning | GRR | Clinton | 35 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1994Every severe thunderstorm warning in 1994
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.