Alert archive / Michigan / Frost Advisories in 2006

Frost Advisory 2, NWS Marquette, MI

May 22, 20064 counties in Michigan

NWS Marquette, MI issued this frost advisory at May 22, 2006, 2:42 PM CDT for 4 counties in Michigan. It took effect at May 23, 2006, 1:00 AM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
May 22, 2006, 2:42 PM CDT (19:42 UTC)
In effect from
May 23, 2006, 1:00 AM CDT
Expired
May 23, 2006, 8:00 AM CDT
In force
7 hr
Issued by
NWS Marquette, MI

Counties Gogebic County, MI, Houghton County, MI, Keweenaw County, MI, Ontonagon County, MI

The radar

The Marquette radar (KMQT), 117 km from the middle of the area, began a volume at 19:41 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 12:00Z, 7.7 hours before the alert went out and 276 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.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2006-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2006-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -47 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1260 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
-47 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Marquette, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 22, 8:19 AM CDTFreeze WatchMQTAlger, Baraga, Delta, Dickinson, Gogebic, Houghton and 7 more6 hr
May 22, 2:42 PM CDTFreeze WarningMQTAlger, Baraga, Delta, Dickinson, Houghton, Iron and 4 more17 hr

Nearby

Frost Advisories in Michigan, 2006Every frost advisory in 2006

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.