Alert archive / Michigan / Flash Flood Warnings in 1986
Flash Flood Warning 1, NWS Gaylord, MI
NWS Gaylord, MI issued this flash flood warning at Sep 10, 1986, 9:10 PM EDT for Muskegon County, Newaygo County, Michigan. It was in force for 110 min.
The area
The counties it named.
The facts
- Issued
- Sep 10, 1986, 9:10 PM EDT (01:10 UTC)
- Expired
- Sep 10, 1986, 11:00 PM EDT
- In force
- 110 min
- Issued by
- NWS Gaylord, MI
- Area
- Whole counties
Counties Muskegon County, MI, Newaygo County, MI
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.2 hours before the alert went out and 207 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
- 7 J/kg
- Mixed-layer CIN
- -162 J/kg
- Mixed-layer LCL
- 664 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMKG 110110 FFWMKG MIC121-123-110300- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MUSKEGON MI 910 PM EDT WED SEP 10 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1100 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF WEST CENTRAL LOWER MICHIGAN...NORTHERN MUSKEGON AND SOUTHERN NEWAYGO AT 905PM EDT RADAR INDICATED A LINE OF THUNDERSTORMS FROM 45 MILES WEST OF WHITEHALL MICHIGAN...OVER MID LAKE MICHIGAN..STRETCHING EAST TO THE SOUTHEAST CORNER OF NEWAYGO COUNTY..FROM 50 MILES NORTHWEST OF MUSKEGON TO 40 MILES NORTHEAST OF MUSKEGON. THESE STORMS CONTAINED EXTREMELY HEAVY RAIN AND WERE MOVING OVER THE SAME PATH AS THEY MOVED FROM WEST TO EAST AT 35 MILES AN HOUR. THE STORMS WILL CONTINUE DUMPING RAIN AT THE RATE OF 2 TO 5 INCHES AN HOURS OVER GROUND THAT HAS ALREADY RECEIVED OVER 4 INCHES OF RAIN. A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR HAS BEEN REPORTED. TAKE ACTION TO SAFEGUARD LIFE AND PROPERTY. PERSONS IN THE NORTH HALF OF MUSKEGON COUNTY AND THE SOUTH HALF OF NEWAYGO COUNTY SHOULD BE PREPARED TO MOVE RAPIDLY TO SAFE GROUND. DO NOT ATTEMPT TO CROSS FAST MOVING WATER ACROSS ROADWAYS GALLOWAY
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 8:16 PM EDT | Severe Thunderstorm Warning | APX | Muskegon, Newaygo | 59 min |
| Sep 10, 11:02 PM EDT | Flash Flood Warning | APX | Muskegon, Newaygo, Oceana | 118 min |
| Sep 11, 3:35 AM EDT | Flash Flood Warning | APX | Lake, Mecosta, Osceola | 4 hr |
| Sep 11, 3:35 AM EDT | Flash Flood Warning | APX | Mason | 4 hr |
| Sep 11, 6:15 AM EDT | Flash Flood Warning | APX | Muskegon | 105 min |
| Sep 11, 7:37 AM EDT | Flash Flood Warning | APX | Muskegon, Newaygo, Oceana | 4 hr |
| Sep 11, 7:37 AM EDT | Flash Flood Warning | APX | Lake, Mecosta, Osceola | 4 hr |
| Sep 11, 7:37 AM EDT | Flash Flood Warning | APX | Mason | 4 hr |
| Sep 11, 11:40 AM EDT | Flash Flood Warning | APX | Oceana | 3 hr |
| Sep 11, 7:49 PM EDT | Flash Flood Warning | APX | Oceana | 2 hr |
Nearby
Flash Flood Warnings in Michigan, 1986Every flash flood warning in 1986
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.