Alert archive / Michigan / Winter Storm Warnings in 2007
Winter Storm Warning 13, NWS Gaylord, MI
NWS Gaylord, MI issued this winter storm warning at Dec 23, 2007, 5:19 AM EST for 5 counties in Michigan. It took effect at Dec 23, 2007, 10:00 AM EST. It was in force for 18 hr. 4 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
- Dec 23, 2007, 5:19 AM EST (10:19 UTC)
- In effect from
- Dec 23, 2007, 10:00 AM EST
- Expired
- Dec 24, 2007, 4:09 AM EST
- In force
- 18 hr
- Issued by
- NWS Gaylord, MI
Counties Benzie County, MI, Grand Traverse County, MI, Leelanau County, MI, Manistee County, MI, Wexford County, MI
The radar
The NCL Michigan radar (KAPX), 100 km from the middle of the area, began a volume at 10:22 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 |
|---|---|---|---|
| Dec 23, 7:27 PM EST | SNOW 3.9 | 4 Se Honor, MI | 12 HR TOTAL THRU 7 PM. |
| Dec 23, 7:59 PM EST | SNOW 3.5 | 4 W Suttons Bay, MI | 12 HR TOTAL THRU 8 PM. |
| Dec 23, 9:34 PM EST | SNOW 6.8 | Wellston, MI | 6.5 HR TOTAL SINCE 3 PM. SNOW DEPTH 9 INCHES. |
| Dec 24, 12:38 AM EST | SNOW 6.5 | 4 W Suttons Bay, MI | 12 HR TOTAL THRU 12 AM. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 10.3 hours before the alert went out and 173 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
- 537 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS43 KAPX 231019 WSWAPX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GAYLORD MI 519 AM EST SUN DEC 23 2007 ...STRONG STORM SYSTEM MOVING THROUGH THE REGION... .LOW PRESSURE NEAR CHICAGO WILL TRACK NORTH INTO WESTERN UPPER MICHIGAN THIS AFTERNOON...PULLING A COLD FRONT UP THROUGH NORTHERN MICHIGAN. MUCH COLDER AIR WILL PLOW INTO NORTHERN MICHIGAN BRINGING A PERIOD OF VERY GUSTY WINDS TO NORTHERN MICHIGAN AROUND MIDDAY...FOLLOWED BY LAKE EFFECT SNOWS/BLOWING SNOW AND LOW VISIBILITIES IMPACTING PORTIONS OF NORTHERN MICHIGAN LATER THIS AFTERNOON THROUGH TONIGHT. MIZ024-029-030-035-036-041-042-231130- /O.CAN.KAPX.WS.A.0011.071223T1800Z-071224T2100Z/ ALPENA-OSCODA-ALCONA-OGEMAW-IOSCO-GLADWIN-ARENAC- INCLUDING THE CITIES OF...ALPENA...MIO...HARRISVILLE... WEST BRANCH...TAWAS CITY...GLADWIN...STANDISH 519 AM EST SUN DEC 23 2007 ...WINTER STORM WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GAYLORD HAS CANCELLED THE WINTER STORM WATCH. $$ MIZ020-025-026-031-032-232300- /O.UPG.KAPX.WS.A.0011.071223T1800Z-071224T2100Z/ /O.NEW.KAPX.WS.W.0013.071223T1500Z-071224T1000Z/ LEELANAU-BENZIE-GRAND TRAVERSE-MANISTEE-WEXFORD- INCLUDING THE CITIES OF...NORTHPORT...FRANKFORT...TRAVERSE CITY... MANISTEE...CADILLAC 519 AM EST SUN DEC 23 2007 ...WINTER STORM WARNING IN EFFECT FROM 10 AM THIS MORNING TO 5 AM EST MONDAY... THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 5 AM EST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. VERY STRONG WINDS WITH GUSTS UP TO 50 MPH ARE EXPECTED AROUND MIDDAY AS A COLD FRONT SWEEPS THROUGH THE REGION...FOLLOWED BY SNOW SHOWERS DEVELOPING EARLY TO MID AFTERNOON. THE SNOW SHOWERS WILL THEN INCREASE IN INTENSITY LATE THIS AFTERNOON AND PERSIST THROUGH TONIGHT. COMBINED WITH GUSTY WINDS...WHITEOUT CONDITIONS ARE POSSIBLE AT TIMES. TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES ARE EXPECTED BY MONDAY MORNING. A WINTER STORM WARNING MEANS STRONG WINDS AND SEVERE WINTER WEATHER IS EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ MIZ016>019-021>023-027-028-033-034-232300- /O.UPG.KAPX.WS.A.0011.071223T1800Z-071224T2100Z/ /O.NEW.KAPX.WW.Y.0011.071223T1500Z-071224T1000Z/ EMMET-CHEBOYGAN-PRESQUE ISLE-CHARLEVOIX-ANTRIM-OTSEGO-MONTMORENCY- KALKASKA-CRAWFORD-MISSAUKEE-ROSCOMMON- INCLUDING THE CITIES OF...PETOSKEY...CHEBOYGAN...ROGERS CITY... CHARLEVOIX...MANCELONA...GAYLORD...ATLANTA...KALKASKA... GRAYLING...LAKE CITY...HOUGHTON LAKE 519 AM EST SUN DEC 23 2007 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 5 AM EST MONDAY... THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A WINTER WEATHER ADVISORY...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 5 AM EST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. VERY STRONG WINDS WITH GUSTS UP TO 45 MPH ARE EXPECTED AROUND MIDDAY AS A COLD FRONT SWEEPS THROUGH THE REGION. THEN...LAKE EFFECT SNOW SHOWERS ARE EXPECTED TO DEVELOP LATE THIS AFTERNOON...AND INCREASE IN INTENSITY TONIGHT. COMBINED WITH GUSTY WINDS...VERY LOW VISIBILITIES ARE EXPECTED AT TIMES. TOTAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED BY MONDAY MORNING. SLOW DOWN AND USE CAUTION IF YOU WILL BE TRAVELING...ESPECIALLY TONIGHT. ALLOW YOURSELF EXTRA TIME TO REACH YOUR DESTINATION. $$ MIZ008-015-232300- /O.UPG.KAPX.WS.A.0011.071224T0000Z-071224T1200Z/ /O.NEW.KAPX.WW.Y.0011.071223T1800Z-071224T1000Z/ CHIPPEWA-MACKINAC- INCLUDING THE CITIES OF...SAULT STE. MARIE...ST. IGNACE 519 AM EST SUN DEC 23 2007 ...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 5 AM EST MONDAY... THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A WINTER WEATHER ADVISORY...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 5 AM EST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. VERY STRONG WINDS WITH GUSTS UP TO 45 MPH ARE EXPECTED EARLY THIS AFTERNOON AS A COLD FRONT SWEEPS THROUGH THE REGION. THEN...LAKE EFFECT SNOW SHOWERS ARE EXPECTED TO DEVELOP DURING THE AFTERNOON AND PERSIST THROUGH TONIGHT. COMBINED WITH GUSTY WINDS...VERY LOW VISIBILITIES ARE EXPECTED AT TIMES. TOTAL SNOW ACCUMULATIONS RANGING FROM 1 TO 4 INCHES ARE EXPECTED BY MONDAY MORNING. SLOW DOWN AND USE CAUTION IF YOU WILL BE TRAVELING THIS AFTERNOON AND TONIGHT. ALLOW YOURSELF EXTRA TIME TO REACH YOUR DESTINATION. $$ ADAM
3 follow-up statements
000 WWUS43 KAPX 232032 WSWAPX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GAYLORD MI 332 PM EST SUN DEC 23 2007 ...STRONG STORM SYSTEM MOVING THROUGH THE REGION... .LOW PRESSURE OVER WESTERN UPPER MICHIGAN WILL LIFT NORTHEAST INTO WESTERN QUEBEC TONIGHT. MUCH COLDER AIR WILL CONTINUE TO SPREAD INTO NORTHERN MICHIGAN...PRODUCING LAKE EFFECT SNOW SHOWERS AND WINDY CONDITIONS. THE COMBINATION OF FALLING AND BLOWING SNOW WILL RESULT IN LOW VISIBILITIES ACROSS MUCH OF NORTHERN MICHIGAN THROUGH TONIGHT. MIZ020-025-026-031-032-241000- /O.CON.KAPX.WS.W.0013.000000T0000Z-071224T1000Z/ LEELANAU-BENZIE-GRAND TRAVERSE-MANISTEE-WEXFORD- INCLUDING THE CITIES OF...NORTHPORT...FRANKFORT...TRAVERSE CITY... MANISTEE...CADILLAC 332 PM EST SUN DEC 23 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM EST MONDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM EST MONDAY. SNOW SHOWERS WILL INCREASE IN INTENSITY EARLY THIS EVENING AND WILL PERSIST THROUGH TONIGHT. COMBINED WITH GUSTY WINDS... WHITEOUT CONDITIONS ARE POSSIBLE AT TIMES. TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES ARE EXPECTED BY MONDAY MORNING. A WINTER STORM WARNING MEANS STRONG WINDS AND SEVERE WINTER WEATHER IS EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ MIZ016>019-021>023-027-028-033-034-241000- /O.CON.KAPX.WW.Y.0011.000000T0000Z-071224T1000Z/ EMMET-CHEBOYGAN-PRESQUE ISLE-CHARLEVOIX-ANTRIM-OTSEGO-MONTMORENCY- KALKASKA-CRAWFORD-MISSAUKEE-ROSCOMMON- INCLUDING THE CITIES OF...PETOSKEY...CHEBOYGAN...ROGERS CITY... CHARLEVOIX...MANCELONA...GAYLORD...ATLANTA...KALKASKA... GRAYLING...LAKE CITY...HOUGHTON LAKE 332 PM EST SUN DEC 23 2007 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST MONDAY. SNOW SHOWERS WILL INCREASE IN INTENSITY EARLY THIS EVENING AND WILL PERSIST THROUGH TONIGHT. COMBINED WITH GUSTY WINDS...LOW VISIBILITIES ARE EXPECTED AT TIMES. TOTAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED BY MONDAY MORNING. SLOW DOWN AND USE CAUTION IF YOU WILL BE TRAVELING...ESPECIALLY TONIGHT. ALLOW YOURSELF EXTRA TIME TO REACH YOUR DESTINATION. $$ MIZ008-015-241000- /O.CON.KAPX.WW.Y.0011.000000T0000Z-071224T1000Z/ CHIPPEWA-MACKINAC- INCLUDING THE CITIES OF...SAULT STE. MARIE...ST. IGNACE 332 PM EST SUN DEC 23 2007 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST MONDAY. SNOW SHOWERS WILL INCREASE IN INTENSITY EARLY THIS EVENING AND WILL PERSIST THROUGH TONIGHT. COMBINED WITH GUSTY WINDS...LOW VISIBILITIES ARE EXPECTED AT TIMES. TOTAL SNOW ACCUMULATIONS OF 1 TO 4 INCHES ARE EXPECTED BY MONDAY MORNING. SLOW DOWN AND USE CAUTION IF YOU WILL BE TRAVELING THIS AFTERNOON AND TONIGHT. ALLOW YOURSELF EXTRA TIME TO REACH YOUR DESTINATION. $$ MR
000 WWUS43 KAPX 240300 WSWAPX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GAYLORD MI 1000 PM EST SUN DEC 23 2007 ...STRONG STORM SYSTEM MOVING THROUGH THE REGION... .LAKE ENHANCED SNOW SHOWERS WILL IMPACT PORTIONS OF EASTERN UPPER AND NORTHWEST LOWER MICHIGAN TONIGHT IN THE WAKE OF A STORM SYSTEM THAT IS WEAKENING AS IT CROSSES THE STATE OVERNIGHT. LOCALLY HEAVY SNOWFALL RATES AND REDUCED VISIBILITY IN FALLING AND BLOWING SNOW WILL RESULT IN HAZARDOUS DRIVING CONDITIONS. MIZ008-017-018-023-240400- /O.CAN.KAPX.WW.Y.0011.000000T0000Z-071224T1000Z/ CHIPPEWA-CHEBOYGAN-PRESQUE ISLE-MONTMORENCY- INCLUDING THE CITIES OF...SAULT STE. MARIE...CHEBOYGAN... ROGERS CITY...ATLANTA 1000 PM EST SUN DEC 23 2007 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GAYLORD HAS CANCELLED THE WINTER WEATHER ADVISORY. $$ MIZ020-025-026-031-032-241000- /O.CON.KAPX.WS.W.0013.000000T0000Z-071224T1000Z/ LEELANAU-BENZIE-GRAND TRAVERSE-MANISTEE-WEXFORD- INCLUDING THE CITIES OF...NORTHPORT...FRANKFORT...TRAVERSE CITY... MANISTEE...CADILLAC 1000 PM EST SUN DEC 23 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM EST MONDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM EST MONDAY. SNOW SHOWERS WILL CONTINUE ACROSS AREAS WEST OF M-37 INTO THE PRE- DAWN HOURS BEFORE DIMINISHING IN INTENSITY. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR ARE EXPECTED IN HEAVIER SNOW BANDS. TOTAL SNOWFALL ACCUMULATIONS BY DAYBREAK MONDAY WILL RANGE FROM 4 TO LOCALLY AS MUCH AS 10 INCHES...WITH THE HEAVIEST TOTALS EXPECTED ACROSS LEELANAU...BENZIE...AND MANISTEE COUNTIES. GUSTY WINDS WILL ALSO RESULT IN CONSIDERABLE BLOWING SNOW AND NEAR WHITEOUT CONDITIONS AT TIMES. A WINTER STORM WARNING MEANS STRONG WINDS AND SEVERE WINTER WEATHER IS EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ MIZ016-019-021-022-027-028-033-034-241000- /O.CON.KAPX.WW.Y.0011.000000T0000Z-071224T1000Z/ EMMET-CHARLEVOIX-ANTRIM-OTSEGO-KALKASKA-CRAWFORD-MISSAUKEE- ROSCOMMON- INCLUDING THE CITIES OF...PETOSKEY...CHARLEVOIX...MANCELONA... GAYLORD...KALKASKA...GRAYLING...LAKE CITY...HOUGHTON LAKE 1000 PM EST SUN DEC 23 2007 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST MONDAY. OCCASIONAL SNOW SHOWERS ARE EXPECTED ACROSS THE ADVISORY AREA OVERNIGHT. TOTAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED BY MONDAY MORNING...WITH PERIODS OF BLOWING SNOW LOCALLY REDUCING VISIBILITIES. SLOW DOWN AND USE CAUTION IF YOU WILL BE TRAVELING...ESPECIALLY TONIGHT. ALLOW YOURSELF EXTRA TIME TO REACH YOUR DESTINATION. $$ MIZ015-241000- /O.CON.KAPX.WW.Y.0011.000000T0000Z-071224T1000Z/ MACKINAC- INCLUDING THE CITY OF...ST. IGNACE 1000 PM EST SUN DEC 23 2007 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST MONDAY. SNOW SHOWERS WILL BE FOCUSED ACROSS WESTERN PORTIONS OF MACKINAC COUNTY BETWEEN ST IGNACE AND EPOUFETTE...WHERE LOCALLY AROUND 8 INCHES OF SNOW IS EXPECTED BY DAYBREAK MONDAY. SNOW SHOWERS WILL TAPER OFF AFTER 2 AM AS WINDS SHIFT FROM SOUTHWEST TO WEST/NORTHWEST. SLOW DOWN AND USE CAUTION IF YOU WILL BE TRAVELING TONIGHT ALONG US-2 EAST OF EPOUFETTE...AND ALONG M-123 BETWEEN MORAN AND THE CHIPPEWA COUNTY LINE. ALLOW YOURSELF EXTRA TIME TO REACH YOUR DESTINATION. $$ JPB
000 WWUS43 KAPX 240909 WSWAPX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GAYLORD MI 409 AM EST MON DEC 24 2007 ...STORM EXITS BUT FREEZING DRIZZLE LEFT BEHIND... .THE LOW PRESSURE THAT PRODUCED SNOW AND WIND ON SUNDAY IS NOW MOVING INTO QUEBEC...AND ASSOCIATED SNOW AND WINDS HAVE DIMINISHED. HOWEVER...FREEZING DRIZZLE HAS DEVELOPED EARLY THIS MORNING IN THE HIGHER TERRAIN OF NORTHERN LOWER MICHIGAN. ROADS ARE TURNING ICY AND SLIPPERY IN SPOTS. THE FREEZING DRIZZLE IS EXPECTED TO TURN BACK TO LAKE EFFECT SNOW SHOWERS THIS MORNING. MIZ032-241700- /O.CAN.KAPX.WS.W.0013.000000T0000Z-071224T1000Z/ /O.EXB.KAPX.WW.Y.0011.000000T0000Z-071224T1700Z/ WEXFORD- INCLUDING THE CITY OF...CADILLAC 409 AM EST MON DEC 24 2007 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON EST TODAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A WINTER WEATHER ADVISORY...WHICH IS IN EFFECT UNTIL NOON EST TODAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. FREEZING DRIZZLE WILL PRODUCE ICY CONDITIONS ON MANY AREA ROADS THIS MORNING. THE FREEZING DRIZZLE IS EXPECTED TO TURN BACK TO SNOW SHOWERS BY NOON. ROADS ACROSS THE AREA WILL BE SLICK. SLOW DOWN AND GIVE YOURSELF PLENTY OF TIME TO REACH YOUR DESTINATION. $$ MIZ020-025-026-031-241015- /O.CAN.KAPX.WS.W.0013.000000T0000Z-071224T1000Z/ LEELANAU-BENZIE-GRAND TRAVERSE-MANISTEE- INCLUDING THE CITIES OF...NORTHPORT...FRANKFORT...TRAVERSE CITY... MANISTEE 409 AM EST MON DEC 24 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GAYLORD HAS CANCELLED THE WINTER STORM WARNING. PATCHY FREEZING DRIZZLE MAY OCCUR THIS MORNING...ESPECIALLY AWAY FROM LAKE MICHIGAN. $$ MIZ015-016-241015- /O.CAN.KAPX.WW.Y.0011.000000T0000Z-071224T1000Z/ MACKINAC-EMMET- INCLUDING THE CITIES OF...ST. IGNACE...PETOSKEY 409 AM EST MON DEC 24 2007 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GAYLORD HAS CANCELLED THE WINTER WEATHER ADVISORY. $$ MIZ019-021-022-027-028-033-034-241700- /O.EXT.KAPX.WW.Y.0011.000000T0000Z-071224T1700Z/ CHARLEVOIX-ANTRIM-OTSEGO-KALKASKA-CRAWFORD-MISSAUKEE-ROSCOMMON- INCLUDING THE CITIES OF...CHARLEVOIX...MANCELONA...GAYLORD... KALKASKA...GRAYLING...LAKE CITY...HOUGHTON LAKE 409 AM EST MON DEC 24 2007 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON EST TODAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL NOON EST TODAY. FREEZING DRIZZLE WILL PRODUCE ICY CONDITIONS ON MANY AREA ROADS THIS MORNING. THE FREEZING DRIZZLE IS EXPECTED TO TURN BACK TO SNOW SHOWERS BY NOON. ROADS ACROSS THE AREA WILL BE SLICK. SLOW DOWN AND GIVE YOURSELF PLENTY OF TIME TO REACH YOUR DESTINATION. $$ JZ
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 4:50 AM EST | Wind Advisory | APX | Alcona, Alpena, Arenac, Gladwin, Iosco, Ogemaw and 1 more | 17 hr |
| Dec 23, 5:19 AM EST | Winter Weather Advisory | APX | Antrim, Cheboygan, Crawford, Emmet, Kalkaska, Missaukee and 5 more | 26 hr |
Nearby
Winter Storm Warnings in Michigan, 2007Every winter storm 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.