Alert archive / Michigan / Flash Flood Warnings in 2021
Flash Flood Warning 7, NWS Gaylord, MI
NWS Gaylord, MI issued this flash flood warning at Aug 28, 2021, 1:08 AM EDT for Grand Traverse County, Michigan. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 28, 2021, 1:08 AM EDT (05:08 UTC)
- Expired
- Aug 28, 2021, 4:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Gaylord, MI
- Area
- Storm-based polygon
- Flood severity
- None
County Grand Traverse County, MI
The radar
The NCL Michigan radar (KAPX), 87 km from the middle of the area, began a volume at 05:12 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.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 5.1 hours before the alert went out and 190 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
- 552 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 916 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 278 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.6
The text
As transmitted.
134
WGUS53 KAPX 280508
FFWAPX
MIC055-280800-
/O.NEW.KAPX.FF.W.0007.210828T0508Z-210828T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Gaylord MI
108 AM EDT Sat Aug 28 2021
The National Weather Service in Gaylord has issued a
* Flash Flood Warning for...
Southwestern Grand Traverse County in northern Michigan...
* Until 400 AM EDT.
* At 107 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to two inches of rain have
already fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flooding include...
Kingsley, Buckley, Karlin, Interlochen, Hannah and Interlochen
State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4453 8581 4466 8581 4466 8550 4451 8551
4451 8582
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR
$$
STJ1 follow-up statement
868
WGUS73 KAPX 280633
FFSAPX
Flash Flood Statement
National Weather Service Gaylord MI
233 AM EDT Sat Aug 28 2021
MIC055-280800-
/O.CON.KAPX.FF.W.0007.000000T0000Z-210828T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Grand Traverse MI-
233 AM EDT Sat Aug 28 2021
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 AM EDT FOR
SOUTHWESTERN GRAND TRAVERSE COUNTY...
At 231 AM EDT, Doppler radar indicated ongoing rain in portions of
the warned area. Up to three inches of rain have already fallen.
Flash flooding is ongoing or expected to begin shortly. Additional
storms may move into this area over the next couple hours.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other drainage
and low lying areas.
Some locations that will experience flooding include...
Kingsley, Buckley, Karlin, Interlochen, Hannah and Interlochen State
Park.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4453 8581 4466 8581 4466 8550 4451 8551
4451 8582
FLASH FLOOD...RADAR INDICATED
$$
STJThe office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 12:49 AM EDT | Severe Thunderstorm Warning | APX | Benzie, Grand Traverse, Manistee, Wexford | 56 min |
| Aug 28, 12:51 AM EDT | Flash Flood Warning | APX | Benzie | 3 hr |
| Aug 28, 1:40 AM EDT | Special Weather Statement | APX | Crawford, Kalkaska, Missaukee, Roscommon | 95 min |
| Aug 28, 3:42 AM EDT | Severe Thunderstorm Warning | APX | Arenac, Gladwin, Missaukee, Ogemaw, Roscommon | 63 min |
| Aug 28, 4:15 AM EDT | Severe Thunderstorm Warning | APX | Benzie, Grand Traverse, Kalkaska, Manistee, Missaukee, Wexford | 60 min |
| Aug 28, 2:07 PM EDT | Severe Thunderstorm Warning | APX | Kalkaska | 38 min |
| Aug 28, 2:59 PM EDT | Severe Thunderstorm Warning | APX | Crawford, Ogemaw, Oscoda, Roscommon | 46 min |
| Aug 28, 3:14 PM EDT | Special Marine Warning | APX | 89 min | |
| Aug 28, 3:18 PM EDT | Small Craft Advisory | APX | 29 hr | |
| Aug 28, 3:26 PM EDT | Beach Hazards Statement | APX | Benzie, Charlevoix, Emmet, Leelanau, Mackinac, Manistee | 29 hr |
| Aug 28, 3:57 PM EDT | Severe Thunderstorm Warning | APX | Presque Isle | 33 min |
| Aug 28, 4:01 PM EDT | Severe Thunderstorm Warning | APX | Alpena, Montmorency | 49 min |
| Aug 28, 4:17 PM EDT | Severe Thunderstorm Warning | APX | Alcona, Iosco, Ogemaw, Oscoda | 43 min |
| Aug 28, 4:30 PM EDT | Special Marine Warning | APX | 2 hr | |
| Aug 28, 4:52 PM EDT | Severe Thunderstorm Warning | APX | Alcona, Iosco | 56 min |
| Aug 28, 5:05 PM EDT | Severe Thunderstorm Warning | APX | Arenac, Gladwin, Iosco, Ogemaw | 55 min |
| Aug 28, 5:18 PM EDT | Special Marine Warning | APX | 117 min |
Nearby
Flash Flood Warnings in Michigan, 2021Every flash flood warning in 2021
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; radar from the NEXRAD Level II archive.