Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 55, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jul 27, 2010, 3:31 PM CDT for Shawano County, Waupaca County, Wisconsin. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 27, 2010, 3:31 PM CDT (20:31 UTC)
- Expired
- Jul 27, 2010, 4:15 PM CDT
- In force
- 44 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Shawano County, WI, Waupaca County, WI
The radar
The Green Bay radar (KGRB), 61 km from the middle of the area, began a volume at 20:34 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, 8.5 hours before the alert went out and 375 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
- 2143 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 832 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 220 m²/s²
- 0-3 km storm-relative helicity
- 256 m²/s²
- Significant tornado parameter
- 1.9
- Supercell composite
- 21.5
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Green Bay, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 27, 3:31 PM CDT, 0 minutes earlier.
Area forecast discussion, Jul 27, 3:31 PM CDT, 0 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREEN BAY WI 331 PM CDT TUE JUL 27 2010 .SHORT TERM...TONIGHT AND WEDNESDAY. FORECAST CONCERNS ON PCPN POTENTIAL WITH ADVANCING COLD FRONT. MCV FROM OVERNIGHT CONVECTION AND LLVL JET HAS MAINTAINED CONVECTION THROUGH THE DAY OVER CENTRAL INTO NORTHEAST WI. QUESTION IS WHAT THE DAYS RAIN HAS DONE TO POTENTIAL FOR ADDITIONAL STORMS. VARIETY OF BOUNDARIES LEFT BEHIND IN ADDITION TO WARM FRONT VCNTY MSP AND COLD FRONT WESTERN MN. HAVE TRENDED TOWARDS SCENARIO PORTRAYED IN RAPID UPDATE RUC...WITH DEVELOPMENT WESTERN WI/EASTERN MN...AND ADVANCING LINE OVERNIGHT WITH THE COLD FRONT. STILL CAPPED A BIT IN MSP AREA GIVEN 18Z SOUNDING...THOUGH NO INHIBITION AND 1200 CAPE IN GRB. SLIGHT RISK REMAINS FOR HAIL AND DAMAGING WINDS OVER CENTRAL AND NORTHEAST WI...WITH INCREASING SHEAR AS JET SINKS SOUTH INTO WESTERN LAKES. PRECIP WATERS STILL IN 1.5 TO 2 INCH RANGE WITH ONE INCH RAINFALL AMOUNTS ALREADY REPORTED IN CENTRAL WI THIS AFTERNOON. POTENTIAL FOR 1 TO 1.5 INCH AMOUNTS OVER CWA TONIGHT...NAM/RUC POINT TO NORTHERN WI...THOUGH CONFIDENCE IN FORECAST LOW. FRONT TO MOVE THROUGH EARLY MORNING HOURS. 850 FLOW SHIFTS NW WITH DRIER CONDITIONS BY AFTERNOON. .LONG TERM...WEDNESDAY NIGHT THRU NEXT TUESDAY. SURFACE HIGH PRESSURE AREA TO DOMINATE THE AREA/S WEATHER INTO FRIDAY. IN GENERAL...THE SURFACE HIGH PRESSURE AREA IS NEARLY STATIONARY OVER THE GREAT LAKES REGION WHILE THE RETURN FLOW ON THE BACK SIDE OF THE HIGH REMAINS OVER THE NORTHERN PLAINS. MODELS HAVE BEEN ATTEMPTING TO SLIDE SOME PCPN INTO THE AREA FROM THE WEST FRIDAY INTO SUNDAY PERIOD. THIS MORNING MODEL RUNS HAVE TRENDED WITH A FRONTAL BOUNDARY SHIFT NORTH INTO IOWA LATER FRIDAY AS A SHORT WAVE TROF WITH A RRQ REGION OF THE UPPER JET SLIDES SEWD OVER OR NEAR THE FORECAST AREA. GFS IS VERY AGGRESSIVE WITH THIS FEATURE WHILE THE NAM KEEPS THESE DYNAMICS FURTHER SOUTH AND WEST. AT THIS TIME WILL CONFINE BEST CHC OF RAIN FOR AREAS SOUTH AND WEST OF THE AREA LATE FRIDAY INTO THE FRIDAY NIGHT PERIOD. REMOVED THE AFTERNOON CHC FOR SATURDAY...MAY BE NEEDED LATER ON BUT THE THREAT OF THIS BOUNDARY SHIFTING TOWARD TOWARD THE REGION IS QUESTIONABLE. DUE TO LACK OF CONSISTENCY WITH FEATURES FOR FOCUS OF CONVECTION...AFTER FRIDAY NIGHT WILL LEAN TOWARD A DRIER FORECAST UNTIL THE MONDAY NIGHT INTO TUESDAY TIME WHERE MDM PROGS ARE IN RELATIVELY GOOD AGREEMENT THAT FAR OUT WITH A FROPA PASSAGE. && .AVIATION...COLD FRONT ADVANCING THROUGH STATE TONIGHT WILL BRING THUNDERSTORMS TO AREA THIS EVENING INTO OVERNIGHT HOURS. VFR CONDITIONS BEHIND FRONT WED AFTERNOON. && .HYDROLOGY...HIGH RAINFALL RATES AND RAINFALL AMOUNTS ON ONE TO TWO INCHES AGAIN INCREASES RISK OF FLOODING. SEE ESF. && .GRB WATCHES/WARNINGS/ADVISORIES... NONE. && TE/TDH
Hazardous weather outlook, Jul 27, 5:16 AM CDT, 10 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREEN BAY WI 516 AM CDT TUE JUL 27 2010 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-281030- VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE- MENOMINEE-NORTHERN OCONTO-DOOR-MARATHON-SHAWANO-WOOD-PORTAGE- WAUPACA-OUTAGAMIE-BROWN-KEWAUNEE-WAUSHARA-WINNEBAGO-CALUMET- MANITOWOC-SOUTHERN MARINETTE-SOUTHERN OCONTO- 516 AM CDT TUE JUL 27 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST WISCONSIN. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS NORTH CENTRAL WISCONSIN THIS AFTERNOON AND TONIGHT...AND ACROSS NORTHEAST WISCONSIN TONIGHT. DAMAGING WINDS AND LARGE HAIL ARE THE MAIN THREATS WITH THESE STORMS...BUT LOCALLY HEAVY RAINFALL IS ALSO POSSIBLE. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NECESSARY THIS AFTERNOON AND TONIGHT. LMZ521-522-541>543-281030- THE BAY OF GREEN BAY SOUTH OF A LINE FROM CEDAR RIVER MI TO ROCK ISLAND PASSAGE-LAKE MICHIGAN FROM WASHINGTON ISLAND TO SHEBOYGAN- 516 AM CDT TUE JUL 27 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST LAKE MICHIGAN AND THE WATERS OF GREEN BAY. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE OF THUNDERSTORMS WITH LARGE HAIL AND STRONG WIND GUSTS LATE THIS AFTERNOON AND TONIGHT. THESE STORMS MAY POSE A HAZARD FOR SMALL CRAFT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. MG
In the hours before
Special weather statement, Jul 27, 11:18 AM CDT, 4 hours 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 1118 AM CDT TUE JUL 27 2010 WIZ010-011-019-271715- FOREST-LANGLADE-ONEIDA- 1118 AM CDT TUE JUL 27 2010 ...SPECIAL WEATHER STATEMENT... AT 1115 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR ELCHO...MOVING EAST AT 30 MPH. ONE HALF INCH DIAMETER HAIL...WINDS GREATER THAN 30 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THIS STORM. * THE THUNDERSTORM WILL BE NEAR... CRANDON BY 1150 AM CDT... GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED. TE
Special weather statement, Jul 27, 11:51 AM CDT, 3 hours 40 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 1151 AM CDT TUE JUL 27 2010 WIZ030-035-036-271745- MARATHON-PORTAGE-WOOD- 1151 AM CDT TUE JUL 27 2010 ...SPECIAL WEATHER STATEMENT... AT 1147 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED ISOLATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING NEAR MARSHFIELD TO 10 MILES WEST OF WISCONSIN RAPIDS...MOVING EAST AT 25 MPH. PEA SIZE HAIL...WINDS GUSTING TO AROUND 30 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THESE STORMS. * THUNDERSTORMS WILL BE NEAR... WISCONSIN RAPIDS BY 1215 PM CDT... WHITING AND STEVENS POINT BY 1245 PM CDT... GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED. TE
Special weather statement, Jul 27, 12:44 PM CDT, 2 hours 47 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 1244 PM CDT TUE JUL 27 2010 WIZ035-036-045-271945- PORTAGE-WAUSHARA-WOOD- 1244 PM CDT TUE JUL 27 2010 ...SIGNIFICANT WEATHER ADVISORY... AT 1236 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 35 MILES WEST OF WAUTOMA...MOVING EAST AT 15 MPH. NICKEL SIZE HAIL...WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THIS STORM. * THE THUNDERSTORM WILL BE NEAR... PLAINFIELD BY 215 PM CDT... WAUTOMA BY 245 PM CDT... GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED. TDH
Special weather statement, Jul 27, 12:58 PM CDT, 2 hours 33 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 1258 PM CDT TUE JUL 27 2010 WIZ018-019-030-271900- LANGLADE-LINCOLN-MARATHON- 1258 PM CDT TUE JUL 27 2010 ...SIGNIFICANT WEATHER ADVISORY... AT 1248 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS EXTENDING FROM TOMAHAWK TO MEDFORD...MOVING SOUTHEAST AT 30 MPH. NICKEL SIZE HAIL...WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THESE STORMS. * THUNDERSTORMS WILL BE NEAR... MERRILL BY 130 PM CDT... WAUSAU AND RIB MOUNTAIN BY 200 PM CDT... NO REPORTS OF SEVERE WEATHER HAVE BEEN REPORTED IN PRICE AND TAYLOR COUNTIES WITH THIS LINE OF THUNDERSTORMS SO FAR. GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED. TDH
Special weather statement, Jul 27, 2:09 PM CDT, 1 hour 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 209 PM CDT TUE JUL 27 2010 WIZ019-020-030-031-272015- LANGLADE-MARATHON-MENOMINEE-SHAWANO- 209 PM CDT TUE JUL 27 2010 ...THUNDERSTORMS WITH TORRENTIAL RAIN OVER CENTRAL WISCONSIN... AT 200 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES NORTH OF ANTIGO TO WAUSAU...MOVING SOUTHEAST AT 35 MPH. PENNY SIZE HAIL...WINDS GREATER THAN 40 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...HEAVY DOWNPOURS...ARE LIKELY WITH THESE STORMS. * THUNDERSTORMS WILL BE NEAR... WITTENBERG BY 245 PM CDT... NEOPIT BY 250 PM CDT... GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED. TDH
Local storm report, Jul 27, 2:53 PM CDT, 38 minutes before
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</html>The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 10:20 AM CDT | Severe Thunderstorm Warning | GRB | Lincoln | 40 min |
| Jul 27, 1:41 PM CDT | Areal Flood Advisory | GRB | Lincoln | 109 min |
| Jul 27, 4:15 PM CDT | Severe Thunderstorm Warning | GRB | Outagamie, Shawano, Waupaca | 28 min |
| Jul 27, 6:45 PM CDT | Severe Thunderstorm Warning | GRB | Florence, Forest | 45 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2010Every severe thunderstorm warning in 2010
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.