Alert archive / Minnesota / Heat Advisories in 2009
Heat Advisory 1, NWS Twin Cities, MN
NWS Twin Cities, MN issued this heat advisory at Jun 22, 2009, 3:44 PM CDT for Hennepin County, Ramsey County, Minnesota. It took effect at Jun 23, 2009, 10:00 AM CDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Jun 22, 2009, 3:44 PM CDT (20:44 UTC)
- In effect from
- Jun 23, 2009, 10:00 AM CDT
- Expired
- Jun 23, 2009, 3:47 AM CDT
- In force
- Issued by
- NWS Twin Cities, MN
Counties Hennepin County, MN, Ramsey County, MN
The radar
The Minneapolis radar (KMPX), 28 km from the middle of the area, began a volume at 20:46 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
Minneapolis, MN (KMPX), launched 12:00Z, 8.7 hours before the alert went out and 30 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
- 554 J/kg
- Mixed-layer CIN
- -135 J/kg
- Mixed-layer LCL
- 761 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
What forecasters said that day
The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Twin Cities, MN wrote its last area forecast discussion before this heat advisory went out at Jun 22, 3:37 PM CDT, 7 minutes earlier.
Area forecast discussion, Jun 22, 3:37 PM CDT, 7 minutes before
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</html>Hazardous weather outlook, Jun 22, 12:26 PM CDT, 3 hours 18 minutes before
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Local storm report, Jun 22, 2:38 PM CDT, 1 hour 6 minutes before
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</html>The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 7:15 PM CDT | Special Weather Statement | MPX | Waseca | 45 min |
| Jun 21, 7:25 PM CDT | Tornado Warning | MPX | Blue Earth, Faribault, Freeborn, Waseca | 65 min |
| Jun 21, 7:27 PM CDT | Tornado Warning | MPX | Blue Earth, Waseca | 33 min |
| Jun 21, 8:08 PM CDT | Tornado Warning | MPX | Faribault, Freeborn | 67 min |
| Jun 21, 8:19 PM CDT | Areal Flood Advisory | MPX | Faribault | 3 hr |
| Jun 21, 8:28 PM CDT | Tornado Warning | MPX | Faribault, Freeborn | 32 min |
| Jun 21, 9:04 PM CDT | Areal Flood Advisory | MPX | Freeborn | 4 hr |
| Jun 21, 9:07 PM CDT | Tornado Warning | MPX | Freeborn | 53 min |
| Jun 21, 9:20 PM CDT | Tornado Warning | MPX | Freeborn | 40 min |
| Jun 21, 9:59 PM CDT | Tornado Warning | MPX | Freeborn | 34 min |
| Jun 21, 10:44 PM CDT | Special Weather Statement | MPX | Freeborn | 31 min |
| Jun 22, 4:37 AM CDT | Flash Flood Warning | MPX | Rusk | 3 hr |
| Jun 22, 5:03 AM CDT | Flash Flood Warning | MPX | Chippewa | 3 hr |
| Jun 22, 7:30 AM CDT | Areal Flood Warning | MPX | Rusk | 3 hr |
| Jun 22, 7:50 AM CDT | Areal Flood Warning | MPX | Chippewa | 3 hr |
Nearby
Heat Advisories in Minnesota, 2009Every heat advisory in 2009
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.