Alert archive / Michigan / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 50, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Jul 7, 1994, 9:59 PM EDT for Clinton County, Michigan. It was in force for 12 min.
The area
The counties it named.
The facts
- Issued
- Jul 7, 1994, 9:59 PM EDT (01:59 UTC)
- Expired
- Jul 7, 1994, 10:11 PM EDT
- In force
- 12 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Whole counties
County Clinton County, MI
The nearest sounding before it
Detroit, MI (KFNT), launched 00:00Z, 2.0 hours before the alert went out and 99 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
- 2204 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 967 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.7
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, Jul 7, 9:18 PM EDT, 41 minutes before
MIZ051-056>058-064-065-071-072-080200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 915 PM EDT THU JUL 7 1994 ...RAIN AND THUNDERSTORMS OVER PORTION OF SOUTHWEST LOWER MICHIGAN... AT 910 PM EDT... AN AREA OF RAIN WITH A FEW THUNDERSTORMS EXTENDED FROM CONKLIN... 20 MILES NORTHWEST OF GRAND RAPIDS THROUGH CUTLERVILLE TO HICKORY CORNERS... 35 MILES SOUTHEAST OF GRAND RAPIDS. THIS AREA CONTINUED NORTH AND EAST THROUGH CEDAR SPRINGS EDMORE AND PORTLAND. MOVEMENT WAS TO THE EAST NORTHEAST AT 15. THE WEST EDGE OF THIS LINE WILL MOVE TO KENT CITY TO CASCADE TO MAPLE GROVE BY 1030 PM. THESE THUNDERSTORMS WILL PRODUCE OCCASIONAL LIGHTNING AND BRIEF HEAVY RAINFALL. REMEMBER... ALL THUNDERSTORMS PRODUCE DANGEROUS LIGHTNING. THIS IS ONE OF THE TOP WEATHER KILLERS IN THE COUNTRY. PRACTICE LIGHTNING SAFETY BY MOVING INDOORS UNTIL THE STORMS PASS.
Special weather statement, Jul 7, 9:20 PM EDT, 39 minutes before
MIZ051-056>058-064-065-071-072-080230- SPECIAL WEATHER STATEMENT...CORRECTION TO TEXT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 920 PM EDT THU JUL 7 1994 ...RAIN AND THUNDERSTORMS OVER PORTION OF SOUTHWEST LOWER MICHIGAN... AT 910 PM EDT... AN AREA OF RAIN WITH A FEW THUNDERSTORMS EXTENDED FROM CONKLIN... 20 MILES NORTHWEST OF GRAND RAPIDS THROUGH CUTLERVILLE TO HICKORY CORNERS... 35 MILES SOUTHEAST OF GRAND RAPIDS. THIS AREA CONTINUED NORTH AND EAST THROUGH CEDAR SPRINGS... EDMORE AND PORTLAND. MOVEMENT WAS TO THE EAST NORTHEAST AT 15 MPH. THE WEST EDGE OF THIS LINE WILL MOVE TO KENT CITY TO CASCADE TO MAPLE GROVE BY 1030 PM. THESE THUNDERSTORMS WILL PRODUCE OCCASIONAL LIGHTNING AND BRIEF HEAVY RAINFALL. REMEMBER... ALL THUNDERSTORMS PRODUCE DANGEROUS LIGHTNING. THIS IS ONE OF THE TOP WEATHER KILLERS IN THE COUNTRY. PRACTICE LIGHTNING SAFETY BY MOVING INDOORS UNTIL THE STORMS PASS.
Special weather statement, Jul 7, 9:22 PM EDT, 37 minutes before
MIZ051-056>058-064-065-071-072-080230- SPECIAL WEATHER STATEMENT...CORRECTION TO TEXT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 920 PM EDT THU JUL 7 1994 ...RAIN AND THUNDERSTORMS OVER PORTION OF SOUTHWEST LOWER MICHIGAN... AT 910 PM EDT... AN AREA OF RAIN WITH A FEW THUNDERSTORMS EXTENDED FROM CONKLIN... 20 MILES NORTHWEST OF GRAND RAPIDS THROUGH CUTLERVILLE TO HICKORY CORNERS... 35 MILES SOUTHEAST OF GRAND RAPIDS. THIS AREA CONTINUED NORTH AND EAST THROUGH CEDAR SPRINGS... EDMORE AND PORTLAND. MOVEMENT WAS TO THE EAST NORTHEAST AT 15 MPH. THE WEST EDGE OF THIS LINE WILL MOVE TO KENT CITY TO CASCADE TO MAPLE GROVE BY 1030 PM. THESE THUNDERSTORMS WILL PRODUCE OCCASIONAL LIGHTNING A&ND BRIEF HEAVY RAINFALL. REMEMBER... ALL THUNDERSTORMS PRODUCE DANGEROUS LIGHTNING. THIS IS ONE OF THE TOP WEATHER KILLERS IN THE COUNTRY. PRACTICE LIGHTNING SAFETY BY MO
Special weather statement, Jul 7, 9:24 PM EDT, 35 minutes before
MIZ051-056>058-064-065-071-072-080230- SPECIAL WEATHER STATEMENT...CORRECTION TO TEXT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 920 PM EDT THU JUL 7 1994 ...RAIN AND THUNDERSTORMS OVER PORTION OF SOUTHWEST LOWER MICHIGAN... AT 910 PM EDT... AN AREA OF RAIN WITH A FEW THUNDERSTORMS EXTENDED FROM CONKLIN... 20 MILES NORTHWEST OF GRAND RAPIDS THROUGH CUTLERVILLE TO HICKORY CORNERS... 35 MILES SOUTHEAST OF GRAND RAPIDS. THIS AREA CONTINUED NORTH AND EAST THROUGH CEDAR SPRINGS... EDMORE AND PORTLAND. MOVEMENT WAS TO THE EAST NORTHEAST AT 15 MPH. THE WEST EDGE OF THIS LINE WILL MOVE TO KENT CITY TO CASCADE TO MAPLE GROVE BY 1030 PM. THESE THUNDERSTORMS WILL PRODUCE OCCASIONAL LIGHTNING A.ND BRIEF HEAVY RAINFALL. REMEMBER... ALL THUNDERSTORMS PRODUCE DANGEROUS LIGHTNING. THIS IS ONE OF THE TOP WEATHER KILLERS IN THE COUNTRY. PRACTICE LIGHTNING SAFETY BY MOVING INDOORS UNTIL THE STORMS PASS.
Special weather statement, Jul 7, 9:30 PM EDT, 29 minutes before
MIZ044-080240- SPECIAL WEATHER STATEMENT FOR NORTHWEST AND WEST CENTRAL LOWER MICHIGAN NATIONAL WEATHER SERVICE MUSKEGON MI 930 PM EDT THU JUL 7 1994 ...A STRONG THUNDERSTORM IS OVER SOUTHWEST NEWAYGO COUNTY... AT 925 PM EDT... WEATHER RADAR DETECTED A STRONG THUNDERSTORM OVER SOUTHWEST NEWAYGO COUNTY NEAR FREMONT. THIS THUNDERSTORM WAS MOVING NORTHEAST AT 20 MPH AND WILL PASS THROUGH WHITE CLOUD BY 1000 PM. RESIDENTS IN THE PATH OF THIS STORM CAN EXPECT A PERIOD OF VERY HEAVY RAINFALL ALONG WITH VIVID LIGHTNING WITH THE PASSAGE OF THIS STORM. KEEP AN EYE TO THE SKY TONIGHT AND BE ALERT TO RAPIDLY CHANGING WEATHER. DO NOT ATTEMPT TO DRIVE THROUGH STANDING WATER ON ROADS. FELVER
Special weather statement, Jul 7, 9:32 PM EDT, 27 minutes before
MIZ044-080240- SPECIAL WEATHER STATEMENT FOR NORTHWEST AND WEST CENTRAL LOWER MICHIGAN NATIONAL WEATHER SERVICE MUSKEGON MI 930 PM EDT THU JUL 7 1994 ...A STRONG THUNDERSTORM IS OVER SOUTHWEST NEWAYGO COUNTY... AT 925 PM EDT... WEATHER RADAR DETECTED A STRONG THUNDERSTORM OVER SOUTHWEST NEWAYGO COUNTY NEAR FREMONT. THIS THUNDERSTORM WAS MOVING NORTHEAST AT 20 MPH AND WILL PASS THROUGH WHITE CLOUD BY 1000 PM. RESIDENTS IN THE PATH OF THIS STOlRM CAN EXPECT A PERIOD OF VERY HEAVY RAINFALL ALONG WITH VIVID LIGHTNING WITH THE PASSAGE OF THIS STORM. KEEP AN EYE TO THE SKY TONIGHT AND BE ALERT TO RAPIDLY CHANGING WEATHER. DO NOT ATTEMPT TO DRIVE THROUGH STANDING WATER ON ROADS. FELVER
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 8:25 PM EDT | Flash Flood Warning | GRR | Kent | 6 hr |
| Jul 7, 9:02 PM EDT | Tornado Warning | GRR | Eaton | 28 min |
| Jul 7, 9:18 PM EDT | Tornado Warning | GRR | Ingham | 27 min |
| Jul 7, 9:55 PM EDT | Flash Flood Warning | GRR | Ionia, Montcalm | 3 hr |
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.