Alert archive / Michigan / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 7, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Feb 11, 1999, 9:35 PM EST for Ionia County, Montcalm County, Michigan. It was in force for 60 min. 3 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
- Feb 11, 1999, 9:35 PM EST (02:35 UTC)
- Expired
- Feb 11, 1999, 10:35 PM EST
- In force
- 60 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Whole counties
Counties Ionia County, MI, Montcalm County, MI
The radar
The Grand Rapids radar (KGRR), 44 km from the middle of the area, began a volume at 02:37 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 |
|---|---|---|---|
| Feb 11, 9:55 PM EST | Thunderstorm Wind | Saranac, MI | Some wind damage was reported including downed power lines. |
| Feb 11, 10:13 PM EST | Thunderstorm Wind | Greenville, MI | Trees were downed by strong winds. |
| Feb 11, 10:23 PM EST | Thunderstorm Wind | Sheridan, MI | Some power lines were downed by strong winds. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 11, 5:45 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
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 Feb 11, 3:09 PM EST, 6 hours 26 minutes earlier.
Area forecast discussion, Feb 11, 3:09 PM EST, 6 hours 26 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 300 PM EST TUE FEB 9 1999 SEVERE WITH DAMAGING WINDS LOOKS TO BE A REAL THREAT FOR SW MI LATE THIS AFTERNOON AND EVENING AS SQUALL LINE RACES NE OUT OF WI/IL/MO. LOSS OF LOW CLOUDS HAS DESTABALIZED THE AIR MASS AHEAD OF THE FRONT WITH SFC TEMPS NOW UP NEAR 70 AND DEWPNTS NR 60. WATCH FROM SPC SEEMS TO BE A CERTAINTY FOR ALL OF THE FCST AREA AS 100KT MID LVL JET PUNCHES NEWD AND SURFACE LOW MOVES THROUGH WI AND DEEPENS. TEMPS DROP ABRUPTLY WITH FROPA SOME 20 TO 30 DEGREES. THE COLD AIR QUICKLY UNDERCUTTING THE FRONTAL BOUNDARY HAS RESULTED IN AN EPISODE OF FRZG RAIN IN PLACES TO OUR WEST TODAY. WILL ACCOUNT FOR THIS IN THE FCST FOR LATER TONIGHT HOWEVER NOT EXPECTING FRZG RAIN FOR TOO LONG SINCE CAA SHOULD BE DEEPER THAN WHAT IS GOING ON TO THE WEST NOW. DRY SLOTTING AFFECTS THE FCST AREA ON FRI MORNING SO MAY TAKE UNTIL LATER IN THE DAY TO REALLY GET SOME ORGANIZED SNOW SHOWERS GOING. ALSO A LOT OF DIRECTIONAL WIND SHEAR PRESENT. DEEPER MOISTURE AND BETTER INVERSION HEIGHTS ARRIVE ON FRI NGT AND THAT/S WHEN SOME PSBL ACCUMS WILL BE MENTIONED. THERMAL TROF MOVES OUT QUICKLY DURING THE DAY SATURDAY PER AVN MODEL AND SHOULD BRING A DIMINISHING OR ENDING TREND IN THE SNOW SHOWER ACTIVITY. MEADE
In the hours before
Special weather statement, Feb 11, 5:25 PM EST, 4 hours 10 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 |
|---|---|---|---|---|
| Feb 11, 7:16 PM EST | Severe Thunderstorm Warning | GRR | Calhoun | 49 min |
| Feb 11, 8:56 PM EST | Severe Thunderstorm Warning | GRR | Barry, Kent | 64 min |
| Feb 11, 9:35 PM EST | Severe Thunderstorm Warning | GRR | Eaton | 60 min |
| Feb 11, 9:46 PM EST | Severe Thunderstorm Warning | GRR | Clare, Mecosta | 64 min |
| Feb 11, 9:46 PM EST | Severe Thunderstorm Warning | GRR | Clinton, Gratiot, Isabella | 64 min |
| Feb 11, 10:05 PM EST | Severe Thunderstorm Warning | GRR | Ingham | 45 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1999Every severe thunderstorm warning in 1999
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; radar from the NEXRAD Level II archive.