Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 187, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 27, 2002, 12:25 PM CDT for Morrison County, Minnesota. It was in force for 50 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 27, 2002, 12:25 PM CDT (17:25 UTC)
- Expired
- Jul 27, 2002, 1:15 PM CDT
- In force
- 50 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Morrison County, MN
The radar
The Minneapolis radar (KMPX), 141 km from the middle of the area, began a volume at 17:28 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 27, 12:30 PM CDT | Thunderstorm Wind 55 E | Upsala, MN | Numerous trees down in campground. Tree on vehicle. |
| Jul 27, 12:55 PM CDT | Thunderstorm Wind 52 E | Royalton, MN | Trees and power lines down. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 27, 12:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 5.4 hours before the alert went out and 139 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
- 485 J/kg
- Mixed-layer CIN
- -155 J/kg
- Mixed-layer LCL
- 1016 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
243 WUUS53 KMPX 271725 SVRMSP MNC097-271815- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1223 PM CDT SAT JUL 27 2002 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MORRISON COUNTY IN CENTRAL MINNESOTA * UNTIL 115 PM CDT * AT 1223 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH DAMAGING WINDS 3 MILES WEST OF UPSALA...OR ABOUT 17 MILES SOUTHEAST OF LONG PRAIRIE...MOVING EAST AT 30 MPH. * SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE... LITTLE FALLS. SWANVILLE. ROYALTON. BUCKMAN. TREES WERE REPORTED DOWN IN SAUK CENTRE WITH THIS STORM IN NORTHERN STEARNS COUNTY. EXPECT DAMAGING WINDS TO 65 MPH ACROSS SOUTHERN MORRISON COUNTY. $$ BINAU
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 10:15 AM CDT | Severe Thunderstorm Warning | MPX | Stevens | 30 min |
| Jul 27, 11:20 AM CDT | Severe Thunderstorm Warning | MPX | Pope | 40 min |
| Jul 27, 12:02 PM CDT | Severe Thunderstorm Warning | MPX | Pope, Stearns | 43 min |
| Jul 27, 12:46 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Stearns | 44 min |
| Jul 27, 12:56 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi | 49 min |
| Jul 27, 1:10 PM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs | 50 min |
| Jul 27, 1:15 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 30 min |
| Jul 27, 1:30 PM CDT | Severe Thunderstorm Warning | MPX | Isanti, Kanabec | 45 min |
| Jul 27, 1:35 PM CDT | Severe Thunderstorm Warning | MPX | Meeker, Stearns | 40 min |
| Jul 27, 1:45 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi | 45 min |
| Jul 27, 1:58 PM CDT | Severe Thunderstorm Warning | MPX | Wright | 47 min |
| Jul 27, 2:03 PM CDT | Severe Thunderstorm Warning | MPX | Chisago | 42 min |
| Jul 27, 2:17 PM CDT | Severe Thunderstorm Warning | MPX | Meeker | 43 min |
| Jul 27, 3:40 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin, Wright | 50 min |
| Jul 27, 4:22 PM CDT | Severe Thunderstorm Warning | MPX | Ramsey, Washington | 38 min |
| Jul 27, 6:33 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 42 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2002Every severe thunderstorm warning in 2002
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.