Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 218, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 8, 2007, 12:57 PM CDT for Wright County, Minnesota. It was in force for 63 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
- Jul 8, 2007, 12:57 PM CDT (17:57 UTC)
- Expired
- Jul 8, 2007, 2:00 PM CDT
- In force
- 63 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Wright County, MN
The radar
The Minneapolis radar (KMPX), 56 km from the middle of the area, began a volume at 17:57 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 8, 1:18 PM CDT | HAIL 1.75 | 8 Ne Annandale, MN | |
| Jul 8, 1:25 PM CDT | HAIL 0.75 | 5 W Monticello, MN | |
| Jul 8, 1:40 PM CDT | HAIL 2.5 | 7 Se Clearwater, MN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 6.0 hours before the alert went out and 55 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
- 432 J/kg
- Mixed-layer CIN
- -564 J/kg
- Mixed-layer LCL
- 2355 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 208 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 081756 SVRMPX MNC171-081900- /O.NEW.KMPX.SV.W.0218.070708T1757Z-070708T1900Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1257 PM CDT SUN JUL 8 2007 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WRIGHT COUNTY IN CENTRAL MINNESOTA... * UNTIL 200 PM CDT * AT 1253 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... CAPABLE OF PRODUCING NICKEL SIZE HAIL. THIS STORM WAS LOCATED 6 MILES NORTH OF ANNANDALE...OR ABOUT 15 MILES SOUTH OF ST CLOUD... AND MOVING EAST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE... ANNANDALE... MONTICELLO... BUFFALO... ST MICHAEL... SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED. LAT...LON 4539 9406 4528 9421 4509 9377 4526 9355 $$
2 follow-up statements
000 WWUS53 KMPX 081815 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 115 PM CDT SUN JUL 8 2007 MNC171-081900- /O.CON.KMPX.SV.W.0218.000000T0000Z-070708T1900Z/ WRIGHT MN- 115 PM CDT SUN JUL 8 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR WRIGHT COUNTY... AT 114 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR ANNANDALE...AND MOVING EAST AT 20 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE SILVER CREEK...HASTY... ENFIELD...ST MICHAEL...MONTICELLO...MAPLE LAKE...BUFFALO...ANNANDALE AND ALBERTVILLE. DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM. WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. LAT...LON 4539 9406 4528 9421 4509 9377 4526 9355 $$ JPR
000 WWUS53 KMPX 081845 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 142 PM CDT SUN JUL 8 2007 MNC171-081900- /O.CON.KMPX.SV.W.0218.000000T0000Z-070708T1900Z/ WRIGHT MN- 142 PM CDT SUN JUL 8 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR WRIGHT COUNTY... AT 140 PM CDT...TENNIS BALL SIZE HAIL WAS REPORTED 7 MILES SOUTHEAST OF CLEARWATER. AT 139 PM CDT...THE SEVERE STORM WAS LOCATED NEAR MONTICELLO...AND MOVING SOUTHEAST AT 30 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE SILVER CREEK...ST MICHAEL... MONTICELLO AND ALBERTVILLE. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. LAT...LON 4534 9392 4525 9403 4514 9374 4526 9355 $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 1:09 PM CDT | Severe Thunderstorm Warning | MPX | Sherburne | 51 min |
| Jul 8, 1:32 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Isanti | 58 min |
| Jul 8, 2:03 PM CDT | Severe Thunderstorm Warning | MPX | Sherburne | 27 min |
| Jul 8, 2:12 PM CDT | Severe Thunderstorm Warning | MPX | Chisago | 63 min |
| Jul 8, 2:29 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Washington | 46 min |
| Jul 8, 2:48 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin | 57 min |
| Jul 8, 3:01 PM CDT | Severe Thunderstorm Warning | MPX | Carver, McLeod | 59 min |
| Jul 8, 3:31 PM CDT | Severe Thunderstorm Warning | MPX | Sherburne | 26 min |
| Jul 8, 3:44 PM CDT | Severe Thunderstorm Warning | MPX | Anoka | 61 min |
| Jul 8, 3:47 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Ramsey, Washington | 58 min |
| Jul 8, 6:14 PM CDT | Severe Thunderstorm Warning | MPX | Nicollet | 29 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2007Every severe thunderstorm warning in 2007
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.