Alert archive / Michigan / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 49, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Aug 9, 2001, 5:04 PM EDT for Antrim County, Michigan. It was in force for 41 min. 2 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
- Aug 9, 2001, 5:04 PM EDT (21:04 UTC)
- Expired
- Aug 9, 2001, 5:45 PM EDT
- In force
- 41 min
- Issued by
- NWS Gaylord, MI
- Area
- Whole counties
County Antrim County, MI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 9, 5:05 PM EDT | Thunderstorm Wind 50 E | Kewadin, MI | |
| Aug 9, 5:15 PM EDT | Thunderstorm Wind 50 E | Elk Rapids, MI | 6 inch diameter limbs down. |
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 |
|---|---|---|---|
| Aug 9, 1:45 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Alpena, MI (KAPX), launched 12:00Z, 9.1 hours before the alert went out and 218 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
- 1643 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 615 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.1
The text
As transmitted, in the capitals the NWS used until 2016.
960 WUUS53 KAPX 092104 SVRAPN MIC009-092145- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GAYLORD MI 504 PM EDT THU AUG 9 2001 THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... ANTRIM COUNTY IN NORTHERN LOWER MICHIGAN * UNTIL 545 PM EDT * AT 500 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS FROM TORCH LAKE TO 13 MILES SOUTHWEST OF ELK RAPIDS...MOVING EAST AT 45 MPH. * THE SEVERE THUNDERSTORMS WILL REACH... CLAM RIVER...LAKE BELLAIRE AROUND 510 PM EDT. BELLAIRE AROUND 515 PM EDT. ALBA...ANTRIM...MANCELONA AROUND 525 PM EDT. REMAIN INDOORS AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. THIS STORM IS CAPABLE OF PRODUCING WIND GUSTS BETWEEN 60 AND 70 MPH. WINDS THIS HIGH CAN DOWN TREES AND POWER LINES.
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 11:13 PM EDT | Severe Thunderstorm Warning | APX | Chippewa | 32 min |
| Aug 9, 4:04 PM EDT | Severe Thunderstorm Warning | APX | Benzie, Manistee | 56 min |
| Aug 9, 4:28 PM EDT | Severe Thunderstorm Warning | APX | Leelanau | 47 min |
| Aug 9, 5:05 PM EDT | Severe Thunderstorm Warning | APX | Wexford | 40 min |
| Aug 9, 5:12 PM EDT | Severe Thunderstorm Warning | APX | Grand Traverse, Kalkaska | 48 min |
| Aug 9, 5:22 PM EDT | Severe Thunderstorm Warning | APX | Crawford, Otsego | 53 min |
| Aug 9, 5:48 PM EDT | Severe Thunderstorm Warning | APX | Oscoda | 42 min |
| Aug 9, 6:20 PM EDT | Severe Thunderstorm Warning | APX | Ogemaw, Roscommon | 70 min |
| Aug 9, 6:25 PM EDT | Severe Thunderstorm Warning | APX | Montmorency | 35 min |
| Aug 9, 6:30 PM EDT | Severe Thunderstorm Warning | APX | Gladwin | 60 min |
| Aug 9, 6:45 PM EDT | Severe Thunderstorm Warning | APX | Iosco | 45 min |
| Aug 9, 6:55 PM EDT | Severe Thunderstorm Warning | APX | Arenac | 65 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2001Every severe thunderstorm warning in 2001
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.