Alert archive / Michigan / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 30, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at May 9, 1996, 3:41 PM EST for Cass County, Saint Joseph County, Michigan. It was in force for 49 min. 4 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 9, 1996, 3:41 PM EST (20:41 UTC)
- Expired
- May 9, 1996, 4:30 PM EST
- In force
- 49 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Whole counties
Counties Cass County, MI, Saint Joseph County, MI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 9, 3:55 PM EST | Hail 1 | Mottville, MI | |
| May 9, 4:05 PM EST | Hail 1 | Constantine, MI | |
| May 9, 4:15 PM EST | Hail 1 | Centreville, MI | |
| May 9, 4:15 PM EST | Hail 1.75 | White Pigeon, MI |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.7 hours before the alert went out and 309 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
- 510 J/kg
- Mixed-layer CIN
- -155 J/kg
- Mixed-layer LCL
- 1208 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 78 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.
NWS Grand Rapids, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at May 8, 8:24 PM EST, 19 hours 17 minutes earlier.
Area forecast discussion, May 8, 8:24 PM EST, 19 hours 17 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 925 PM EDT WED MAY 8 1996 NTRANS VIS LOOP SHOWS A BREAK IN THE OVC OVR SW LWR ATTM MOVG EAST. BEH HAS ALREADY SCTD AND HAVE INTRODUCED A BREAK IN THE AZO FT. THE BREAK APPEARS TO BE CAUSED BY SUBSIDENCE BEHIND THE EARLIER MCS. IT LOOKS LIKE THE BREAK WILL LAST A COUPLE OF HOURS BEFORE FILLING BACK IN. SFC ANAL SHOWS THE WARM FRONT ALONG THE IN/MI BORDER. DWPTS SOUTH OF IT ARE IN THE LOW 60S AND NORTH OF IT IN THE LOW 50S. IFR CONDS STILL EXIST IN WI AND VFR CONDS IN IL/IN WILL BECOME IFR BY 04Z OR SO. NEXT BATCH OF TRW IS FIRING OVR THE PLAINS AGAIN IN VCNTY OF WARM FRONT AND AIDED BY LLJ AND GOOD MOISTURE CONVERGENCE. I EXPECT TONIGHTS MCS TO FINALLY AFFECT THE FA LATE MORNING THU. THE FOCUS IS FARTHER NORTH SINCE THE FRONT IS FARTHER NORTH AND THE DIFFLUENT THICKNESS PATTERN IS ALSO FARTHER NORTH COMPARED WITH THE PAST SEVERAL NIGHTS. I AM KEEPING IFR CONDS IN THE FTS THRU THU AS THERE WILL BE A LOT OF MOISTURE IN THE AIR AND SCT TRW NOT TO MENTION GOOD INFLOW FROM THE SOUTH. ETA BUFKIT SOUNDING FOR THU AFTNOON IN GRR YIELDS LI`S OF -4. FWC TEMPS A BIT HIGH GIVEN THE AMOUNT OF CLOUD COVER. GOING FCST LOOKS GOOD. WF
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 2:08 PM EST | Severe Thunderstorm Warning | GRR | Ingham, Jackson | 37 min |
| May 9, 3:32 PM EST | Flash Flood Warning | GRR | Berrien | 4 hr |
| May 9, 4:11 PM EST | Flash Flood Warning | GRR | Cass | 4 hr |
| May 9, 4:18 PM EST | Severe Thunderstorm Warning | GRR | Hillsdale | 42 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1996Every severe thunderstorm warning in 1996
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.