Alert archive / Minnesota / Tornado Watches in 1999
Tornado Watch 593
The Storm Prediction Center issued this tornado watch at Jul 27, 1999, 5:00 PM CDT for 35 counties in Minnesota. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 27, 1999, 5:00 PM CDT (22:00 UTC)
- Expired
- Jul 27, 1999, 11:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 35 counties
Aitkin County, MN, Anoka County, MN, Benton County, MN, Big Stone County, MN, Carlton County, MN, Carver County, MN, Cass County, MN, Chippewa County, MN, Chisago County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Hennepin County, MN, Hubbard County, MN, Isanti County, MN, Itasca County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Lake County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Otter Tail County, MN, Pine County, MN, Pope County, MN, Saint Louis County, MN, Sherburne County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Wadena County, MN, Wright County, MN
The radar
The Minneapolis radar (KMPX), 158 km from the middle of the area, began a volume at 21:48 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.
Warnings issued inside it
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 5:43 PM CDT | Severe Thunderstorm Warning | DLH | Itasca | 62 min |
| Jul 27, 5:59 PM CDT | Severe Thunderstorm Warning | MPX | Stevens | 31 min |
| Jul 27, 6:15 PM CDT | Severe Thunderstorm Warning | ABR | Big Stone | 50 min |
| Jul 27, 6:23 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle, Swift | 67 min |
| Jul 27, 6:27 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 63 min |
| Jul 27, 6:34 PM CDT | Severe Thunderstorm Warning | DLH | Itasca | 26 min |
| Jul 27, 6:44 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 46 min |
| Jul 27, 7:18 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi | 57 min |
| Jul 27, 7:29 PM CDT | Tornado Warning | DLH | Saint Louis | 31 min |
| Jul 27, 7:38 PM CDT | Severe Thunderstorm Warning | MPX | Meeker | 67 min |
| Jul 27, 7:56 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Sibley | 64 min |
| Jul 27, 8:03 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 57 min |
| Jul 27, 9:17 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 58 min |
| Jul 27, 10:14 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 61 min |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 10.0 hours before the alert went out and 156 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2332 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 2:30 PM CDT | Tornado Watch | SPC | Becker, Beltrami, Big Stone, Clay, Clearwater, Grant and 8 more | 6 hr |
| Jul 27, 6:30 PM CDT | Tornado Watch | SPC | Brown, Carver, Cottonwood, Jackson, Lincoln, Lyon and 12 more | 6 hr |
Nearby
Tornado Watches in Minnesota, 1999Every tornado watch in 1999
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.