Alert archive / Michigan / Red Flag Warnings in 2009
Red Flag Warning 4, NWS Gaylord, MI
NWS Gaylord, MI issued this red flag warning at May 21, 2009, 10:48 AM EDT for 11 counties in Michigan. It took effect at May 21, 2009, 11:00 AM EDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 21, 2009, 10:48 AM EDT (14:48 UTC)
- In effect from
- May 21, 2009, 11:00 AM EDT
- Expired
- May 21, 2009, 6:44 PM EDT
- In force
- 8 hr
- Issued by
- NWS Gaylord, MI
Counties Alcona County, MI, Alpena County, MI, Arenac County, MI, Crawford County, MI, Gladwin County, MI, Iosco County, MI, Montmorency County, MI, Ogemaw County, MI, Oscoda County, MI, Presque Isle County, MI, Roscommon County, MI
The radar
The NCL Michigan radar (KAPX), 67 km from the middle of the area, began a volume at 14:52 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
Alpena, MI (KAPX), launched 12:00Z, 2.8 hours before the alert went out and 136 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
- 1918 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS83 KAPX 211448 RFWAPX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GAYLORD MI 1048 AM EDT THU MAY 21 2009 ...RED FLAG WARNING IN EFFECT FOR NORTHEAST LOWER MICHIGAN... .DISCUSSION...A COLD FRONT WILL SLIP INTO NORTHWEST LOWER MICHIGAN THIS AFTERNOON...AND PUSH THROUGH THE REST OF NORTHERN LOWER MICHIGAN EARLY THIS EVENING. THIS SYSTEM WILL BRING SOME SHOWERS THROUGH THE REGION. HOWEVER...NO SIGNIFICANT RAINFALL IS EXPECTED. AHEAD OF THE FRONT TODAY...GUSTY SOUTHWEST WINDS WILL PERSIST ACROSS ALL OF NORTHERN LOWER MICHIGAN. IN ADDITION... TEMPERATURES ACROSS NORTHEAST LOWER MICHIGAN INCLUDING THE HURON NATIONAL FOREST WILL WARM INTO THE LOWER 80S. THIS WILL RESULT IN MINIMUM AFTERNOON RELATIVE HUMIDITY READINGS DIPPING TO AROUND OR JUST BELOW 25 PERCENT. MIZ018-023-024-028>030-034>036-041-042-220000- /O.UPG.KAPX.FW.A.0003.000000T0000Z-090522T0000Z/ /O.NEW.KAPX.FW.W.0004.090521T1500Z-090522T0000Z/ PRESQUE ISLE-MONTMORENCY-ALPENA-CRAWFORD-OSCODA-ALCONA-ROSCOMMON- OGEMAW-IOSCO-GLADWIN-ARENAC- INCLUDING THE CITIES OF...ROGERS CITY...ATLANTA...ALPENA... GRAYLING...MIO...HARRISVILLE...HOUGHTON LAKE...WEST BRANCH... TAWAS CITY...GLADWIN...STANDISH 1048 AM EDT THU MAY 21 2009 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 8 PM EDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. THE RED FLAG WARNING INCLUDES THE FOLLOWING FIRE WEATHER ZONES: IN MICHIGAN...18...23...24...28...29...30...34...35...36 ...41...42. A COLD FRONT WILL MOVE THROUGH NORTHEAST LOWER MICHIGAN LATE THIS AFTERNOON AND EARLY THIS EVENING. AHEAD OF THE FRONT...GUSTY WINDS AND WARM TEMPERATURES WILL BE FOUND AGAIN TODAY. MINIMUM AFTERNOON RELATIVE HUMIDITY VALUES ARE EXPECTED DROP TO CRITICAL READINGS AROUND 25 PERCENT...WITH LOCAL HUMIDITY VALUES AS LOW AS 20 PERCENT IN PORTIONS OF THE HURON NATIONAL FOREST. THIS WILL RESULT IN POTENTIALLY DANGEROUS FIRE WEATHER CONDITIONS INTO THE AFTERNOON HOURS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ LAWRENCE
2 follow-up statements
000 WWUS83 KAPX 211946 RFWAPX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GAYLORD MI 346 PM EDT THU MAY 21 2009 ...RED FLAG WARNING IN EFFECT FOR NORTHEAST LOWER MICHIGAN... .DISCUSSION...FIRE DANGER WILL REMAIN ELEVATED EAST OF A CADILLAC TO ROGERS CITY LINE THROUGH LATE AFTERNOON DUE TO WARM TEMPERATURES...GUSTY SOUTHWEST WINDS...AND LOW RELATIVE HUMIDITIES. AS THIS COLD FRONT SWEEPS ACROSS NORTHEAST LOWER MICHIGAN BETWEEN 4 AND 8 PM...TEMPERATURES WILL DROP INTO THE 70S AND RELATIVE HUMIDITIES WILL RECOVER ABOVE 40 PERCENT. WINDS WILL ALSO SHIFT TO THE WEST-NORTHWEST AND WILL REMAIN GUSTY UNTIL EARLY EVENING. MIZ018-023-024-028>030-034>036-041-042-220000- /O.CON.KAPX.FW.W.0004.000000T0000Z-090522T0000Z/ PRESQUE ISLE-MONTMORENCY-ALPENA-CRAWFORD-OSCODA-ALCONA-ROSCOMMON- OGEMAW-IOSCO-GLADWIN-ARENAC- INCLUDING THE CITIES OF...ROGERS CITY...ATLANTA...ALPENA... GRAYLING...MIO...HARRISVILLE...HOUGHTON LAKE...WEST BRANCH... TAWAS CITY...GLADWIN...STANDISH 346 PM EDT THU MAY 21 2009 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING. A COLD FRONT WILL MOVE THROUGH NORTHEAST LOWER MICHIGAN LATE THIS AFTERNOON AND EARLY THIS EVENING. AHEAD OF THE FRONT...GUSTY WINDS AND WARM TEMPERATURES WILL BE FOUND AGAIN LATE THIS AFTERNOON... THOUGH CONDITIONS WILL IMPROVE AS THE COLD FRONT CROSSES THE AREA BETWEEN 4 AND 8 PM. PRIOR TO THAT...RELATIVE HUMIDITY VALUES WILL REMAIN IN THE 15 TO 30 PERCENT RANGE...WITH TEMPERATURES IN THE MID TO UPPER 80S. AFTER THE COLD FRONT PASSES...TEMPERATURES WILL DROP INTO THE 70S AND RELATIVE HUMIDITIES WILL CLIMB ABOVE 40 PERCENT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ JPB
000 WWUS83 KAPX 212244 RFWAPX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GAYLORD MI 644 PM EDT THU MAY 21 2009 MIZ018-023-024-028>030-034>036-041-042-212345- /O.CAN.KAPX.FW.W.0004.000000T0000Z-090522T0000Z/ PRESQUE ISLE-MONTMORENCY-ALPENA-CRAWFORD-OSCODA-ALCONA-ROSCOMMON- OGEMAW-IOSCO-GLADWIN-ARENAC- INCLUDING THE CITIES OF...ROGERS CITY...ATLANTA...ALPENA... GRAYLING...MIO...HARRISVILLE...HOUGHTON LAKE...WEST BRANCH... TAWAS CITY...GLADWIN...STANDISH 644 PM EDT THU MAY 21 2009 ...RED FLAG WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GAYLORD HAS CANCELLED THE RED FLAG WARNING. THE RED FLAG WARNING INCLUDED THE FOLLOWING FIRE WEATHER ZONES: IN MICHIGAN...18...23...24...28...29...30...34...35...36 ...41...42 A COLD FRONT HAS DROPPED SOUTHWARD ACROSS NORTHERN MICHIGAN WITH TEMPERATURES COOLING BACK INTO THE 70S AND RELATIVE HUMIDITIES INCREASING TO ABOVE 25 PERCENT. THUS...THE RED FLAG WARNING HAS BEEN CANCELLED. $$ KAS
Nearby
Red Flag Warnings in Michigan, 2009Every red flag warning in 2009
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.