Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 409, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 21, 2005, 8:08 PM CDT for Sherburne County, Wright County, Minnesota. It was in force for 67 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 21, 2005, 8:08 PM CDT (01:08 UTC)
- Expired
- Sep 21, 2005, 9:15 PM CDT
- In force
- 67 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Sherburne County, MN, Wright County, MN
The radar
The Minneapolis radar (KMPX), 64 km from the middle of the area, began a volume at 01:12 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 21, 8:20 PM CDT | HAIL 0.75 | 1 S Otsego, MN | HAIL REPORTED ON WRIGHT/SHERBURNE COUNTY LINE. |
| Sep 21, 8:20 PM CDT | HAIL 0.75 | Otsego, MN | HAIL REPORTED ON WRIGHT/SHERBURNE COUNTY LINE |
| Sep 21, 8:55 PM CDT | HAIL 0.88 | Monticello, MN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 21, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 21, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 1.1 hours before the alert went out and 63 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
- 2043 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1714 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 274 m²/s²
- 0-3 km storm-relative helicity
- 406 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 9.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 220109 SVRMPX MNC141-171-220215- /O.NEW.KMPX.SV.W.0409.050922T0108Z-050922T0215Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 808 PM CDT WED SEP 21 2005 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SHERBURNE COUNTY IN CENTRAL MINNESOTA WRIGHT COUNTY IN CENTRAL MINNESOTA * UNTIL 915 PM CDT * AT 803 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED NEAR BECKER...OR ABOUT 18 MILES SOUTHWEST OF PRINCETON...AND MOVING EAST AT 40 MPH. ANOTHER SEVERE STORM WAS LOCATED JUST NORTH OF ANNANDALE AND ALSO MOVING EAST AT 30 TO 40 MPH. * LOCATIONS IMPACTED INCLUDE... OTSEGO... ZIMMERMAN... SILVER CREEK... MONTICELLO... BIG LAKE... ELK RIVER... STAY INDOORS...AND AWAY FROM WINDOWS. LAT...LON 4545 9400 4527 9417 4524 9357 4553 9360 $$ KAT
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 7:07 PM CDT | Severe Thunderstorm Warning | MPX | Ramsey | 53 min |
| Sep 21, 7:08 PM CDT | Tornado Warning | MPX | Anoka, Hennepin | 52 min |
| Sep 21, 7:16 PM CDT | Tornado Warning | MPX | Ramsey | 44 min |
| Sep 21, 7:22 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Washington | 53 min |
| Sep 21, 7:32 PM CDT | Severe Thunderstorm Warning | MPX | Chisago | 58 min |
| Sep 21, 7:33 PM CDT | Tornado Warning | MPX | Washington | 27 min |
| Sep 21, 7:42 PM CDT | Flash Flood Warning | MPX | Ramsey, Washington | 3 hr |
| Sep 21, 7:48 PM CDT | Flash Flood Warning | MPX | Hennepin | 3 hr |
| Sep 21, 7:54 PM CDT | Flash Flood Warning | MPX | Anoka | 3 hr |
| Sep 21, 7:57 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin, Ramsey | 63 min |
| Sep 21, 8:11 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Washington | 64 min |
| Sep 21, 8:37 PM CDT | Flash Flood Warning | MPX | Sherburne | 3 hr |
| Sep 21, 8:38 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin | 22 min |
| Sep 21, 8:49 PM CDT | Flash Flood Warning | MPX | Wright | 3 hr |
| Sep 21, 9:21 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin | 39 min |
| Sep 21, 9:27 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Meeker | 63 min |
| Sep 21, 10:25 PM CDT | Severe Thunderstorm Warning | MPX | McLeod | 35 min |
| Sep 21, 10:43 PM CDT | Severe Thunderstorm Warning | MPX | Carver | 33 min |
| Sep 21, 11:23 PM CDT | Severe Thunderstorm Warning | MPX | Scott | 25 min |
| Sep 21, 11:34 PM CDT | Severe Thunderstorm Warning | MPX | Dakota | 41 min |
| Sep 21, 11:37 PM CDT | Severe Thunderstorm Warning | MPX | Rice | 38 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2005Every severe thunderstorm warning in 2005
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.