Alert archive / Arizona / Winter Storm Warnings in 2011
Winter Storm Warning 2, NWS Tucson, AZ
NWS Tucson, AZ issued this winter storm warning at Dec 1, 2011, 3:32 AM MST for Graham County, Greenlee County, Arizona. It took effect at Dec 1, 2011, 8:00 PM MST. It was in force for 24 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
- Dec 1, 2011, 3:32 AM MST (10:32 UTC)
- In effect from
- Dec 1, 2011, 8:00 PM MST
- Expired
- Dec 2, 2011, 8:00 PM MST
- In force
- 24 hr
- Issued by
- NWS Tucson, AZ
Counties Graham County, AZ, Greenlee County, AZ
The radar
The Tucson radar (KEMX), 165 km from the middle of the area, began a volume at 10:33 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
Tuscon, AZ (KTUS), launched 00:00Z, 10.5 hours before the alert went out and 161 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
- 6356 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
195 WWUS45 KTWC 011032 WSWTWC URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE TUCSON AZ 332 AM MST THU DEC 1 2011 AZZ510-012300- /O.UPG.KTWC.WW.Y.0005.111202T0600Z-111203T0000Z/ /O.NEW.KTWC.WS.W.0002.111202T0300Z-111203T0300Z/ WHITE MOUNTAINS OF GRAHAM AND GREENLEE COUNTIES- INCLUDING THE CITY OF...HANNAGAN MEADOW 332 AM MST THU DEC 1 2011 ...WINTER STORM WARNING IN EFFECT FROM 8 PM THIS EVENING TO 8 PM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 8 PM MST FRIDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...LIGHT SNOW IS FORECAST TO DEVELOP THIS MORNING AND CONTINUE THIS AFTERNOON. SNOW IS THEN EXPECTED TO INCREASE AND BECOME HEAVY AT TIMES LATE TONIGHT AND FRIDAY. * SNOW ACCUMULATIONS...SNOW ACCUMULATION OF 12 TO 15 INCHES ARE EXPECTED ABOVE 7000 FEET BY EARLY FRIDAY EVENING. * WINDS...SOUTH TO SOUTHEAST WINDS OF 15 TO 25 MPH ARE EXPECTED WITH THIS STORM DURING THE OVERNIGHT HOURS ON LATE TONIGHT AND DURING THE DAY ON FRIDAY. * IMPACTS...ROADWAYS WILL BECOME SNOW PACKED AND ICY. TRAVELERS MAY EXPERIENCE PERIODS OF POOR VISIBILITY DUE TO HEAVY SNOW AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS HEAVY SNOW ACCUMULATIONS ARE EXPECTED. GUSTY WINDS AND BLOWING SNOW ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY DIFFICULT OR IMPOSSIBLE...ESPECIALLY IN THE MOUNTAINS. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL TELEVISION OR RADIO STATIONS...OR YOUR CABLE TELEVISION SERVICE PROVIDER FOR UPDATES ON THIS WINTER STORM. && $$ AZZ511-012300- /O.NEW.KTWC.WW.Y.0006.111202T0300Z-111203T0300Z/ GALIURO AND PINALENO MOUNTAINS- INCLUDING THE CITY OF...MOUNT GRAHAM 332 AM MST THU DEC 1 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 PM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A WINTER WEATHER ADVISORY FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 8 PM MST FRIDAY. * TIMING...LIGHT SNOW IS FORECAST TO DEVELOP THIS MORNING AND CONTINUE THIS AFTERNOON. SNOW IS THEN EXPECTED TO INCREASE AND BECOME HEAVY AT TIMES LATE TONIGHT AND FRIDAY. * SNOW ACCUMULATIONS...SNOW ACCUMULATION OF 8 TO 10 INCHES ARE EXPECTED ABOVE 7000 FEET BY EARLY FRIDAY EVENING. * SNOW LEVELS...SNOW LEVELS WILL FALL TO AROUND 5000 FEET BY EARLY FRIDAY MORNING AND TO AROUND 4000 FEET BY EARLY SATURDAY. * WINDS...SOUTH TO SOUTHEAST WINDS OF 15 TO 25 MPH ARE EXPECTED WITH THIS STORM DURING THE OVERNIGHT HOURS LATE TONIGHT AND DURING THE DAY ON FRIDAY. * IMPACTS...ROADWAYS WILL BECOME SNOW PACKED AND ICY. TRAVELERS MAY EXPERIENCE PERIODS OF POOR VISIBILITY DUE TO HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW ARE LIKELY WHICH WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ HTTP://WEATHER.GOV/TUCSON
4 follow-up statements
241 WWUS45 KTWC 011945 WSWTWC URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE TUCSON AZ 1245 PM MST THU DEC 1 2011 AZZ510-020600- /O.CON.KTWC.WS.W.0002.111202T0300Z-111203T0300Z/ WHITE MOUNTAINS OF GRAHAM AND GREENLEE COUNTIES- INCLUDING THE CITY OF...HANNAGAN MEADOW 1245 PM MST THU DEC 1 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 8 PM MST FRIDAY ABOVE 7000 FEET... A WINTER STORM WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 8 PM MST FRIDAY. * TIMING...SNOW IS EXPECTED TO INCREASE IN INTENSITY AND BECOME HEAVY AT TIMES LATE TONIGHT AND FRIDAY. * SNOW ACCUMULATIONS...SNOW ACCUMULATIONS OF 12 TO 15 INCHES ARE EXPECTED ABOVE 7000 FEET BY EARLY FRIDAY EVENING. * WINDS...SOUTH TO SOUTHEAST WINDS OF 15 TO 25 MPH WILL OCCUR LATE TONIGHT AND FRIDAY. * IMPACTS...ROADWAYS WILL BECOME SNOW PACKED AND ICY. TRAVELERS MAY EXPERIENCE PERIODS OF POOR VISIBILITY DUE TO HEAVY SNOW AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS HEAVY SNOW ACCUMULATIONS ARE EXPECTED. GUSTY WINDS AND BLOWING SNOW ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY DIFFICULT OR IMPOSSIBLE...ESPECIALLY IN THE MOUNTAINS. LISTEN TO NOAA WEATHER RADIO...COMMERCIAL TELEVISION OR RADIO STATIONS...OR YOUR CABLE TELEVISION SERVICE PROVIDER FOR UPDATES ON THIS WINTER STORM. && $$ AZZ511-020600- /O.CON.KTWC.WW.Y.0006.111202T0300Z-111203T0300Z/ GALIURO AND PINALENO MOUNTAINS- INCLUDING THE CITY OF...MOUNT GRAHAM 1245 PM MST THU DEC 1 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 8 PM MST FRIDAY ABOVE 7000 FEET... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 8 PM MST FRIDAY. * TIMING...SNOW IS THEN EXPECTED TO INCREASE IN INTENSITY AND BECOME HEAVY AT TIMES LATE TONIGHT AND FRIDAY. * SNOW ACCUMULATIONS...SNOW ACCUMULATION OF 8 TO 10 INCHES ARE EXPECTED ABOVE 7000 FEET BY EARLY FRIDAY EVENING. * IMPACTS...ROADWAYS WILL BECOME SNOW PACKED AND ICY. TRAVELERS MAY EXPERIENCE PERIODS OF POOR VISIBILITY DUE TO HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW ARE LIKELY WHICH WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ HTTP://WEATHER.GOV/TUCSON
860 WWUS45 KTWC 020436 WSWTWC URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE TUCSON AZ 936 PM MST THU DEC 1 2011 AZZ510-021200- /O.CON.KTWC.WS.W.0002.000000T0000Z-111203T0300Z/ WHITE MOUNTAINS OF GRAHAM AND GREENLEE COUNTIES- INCLUDING THE CITY OF...HANNAGAN MEADOW 936 PM MST THU DEC 1 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST FRIDAY. * TIMING...SNOW IS EXPECTED TO INCREASE IN INTENSITY AND BECOME HEAVY AT TIMES LATE TONIGHT AND FRIDAY. * SNOW ACCUMULATIONS...SNOW ACCUMULATIONS OF 12 TO 15 INCHES ARE EXPECTED ABOVE 7000 FEET BY EARLY FRIDAY EVENING. * WINDS...SOUTH TO SOUTHEAST WINDS OF 15 TO 25 MPH WILL OCCUR LATE TONIGHT AND FRIDAY. * IMPACTS...ROADWAYS WILL BECOME SNOW PACKED AND ICY. TRAVELERS MAY EXPERIENCE PERIODS OF POOR VISIBILITY DUE TO HEAVY SNOW AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS HEAVY SNOW ACCUMULATIONS ARE EXPECTED. GUSTY WINDS AND BLOWING SNOW ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY DIFFICULT OR IMPOSSIBLE...ESPECIALLY IN THE MOUNTAINS. LISTEN TO NOAA WEATHER RADIO...COMMERCIAL TELEVISION OR RADIO STATIONS...OR YOUR CABLE TELEVISION SERVICE PROVIDER FOR UPDATES ON THIS WINTER STORM. && $$ AZZ511-021200- /O.CON.KTWC.WW.Y.0006.000000T0000Z-111203T0300Z/ GALIURO AND PINALENO MOUNTAINS- INCLUDING THE CITY OF...MOUNT GRAHAM 936 PM MST THU DEC 1 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST FRIDAY. * TIMING...SNOW IS THEN EXPECTED TO INCREASE IN INTENSITY AND BECOME HEAVY AT TIMES LATE TONIGHT AND FRIDAY. * SNOW ACCUMULATIONS...SNOW ACCUMULATION OF 8 TO 10 INCHES ARE EXPECTED ABOVE 7000 FEET BY EARLY FRIDAY EVENING. * IMPACTS...ROADWAYS WILL BECOME SNOW PACKED AND ICY. TRAVELERS MAY EXPERIENCE PERIODS OF POOR VISIBILITY DUE TO HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW ARE LIKELY WHICH WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ HTTP://WEATHER.GOV/TUCSON
112 WWUS45 KTWC 021021 WSWTWC URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE TUCSON AZ 321 AM MST FRI DEC 2 2011 AZZ510-022230- /O.CON.KTWC.WS.W.0002.000000T0000Z-111203T0300Z/ WHITE MOUNTAINS OF GRAHAM AND GREENLEE COUNTIES- INCLUDING THE CITY OF...HANNAGAN MEADOW 321 AM MST FRI DEC 2 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING. * TIMING...SNOW IS EXPECTED TO INCREASE IN INTENSITY AND BECOME HEAVY AT TIMES AROUND SUNRISE AND CONTINUE THROUGH THE EVENING. * SNOW ACCUMULATIONS...SNOW ACCUMULATIONS OF 12 TO 15 INCHES ARE EXPECTED ABOVE 7000 FEET BY EARLY FRIDAY EVENING. * WINDS...SOUTH TO SOUTHEAST WINDS OF 15 TO 25 MPH WILL OCCUR LATE TONIGHT AND FRIDAY. * IMPACTS...ROADWAYS WILL BECOME SNOW PACKED AND ICY. TRAVELERS MAY EXPERIENCE PERIODS OF POOR VISIBILITY DUE TO HEAVY SNOW AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS HEAVY SNOW ACCUMULATIONS ARE EXPECTED. GUSTY WINDS AND BLOWING SNOW ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY DIFFICULT OR IMPOSSIBLE...ESPECIALLY IN THE MOUNTAINS. LISTEN TO NOAA WEATHER RADIO...COMMERCIAL TELEVISION OR RADIO STATIONS...OR YOUR CABLE TELEVISION SERVICE PROVIDER FOR UPDATES ON THIS WINTER STORM. && $$ AZZ511-022230- /O.CON.KTWC.WW.Y.0006.000000T0000Z-111203T0300Z/ GALIURO AND PINALENO MOUNTAINS- INCLUDING THE CITY OF...MOUNT GRAHAM 321 AM MST FRI DEC 2 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING. * TIMING...SNOW WILL CONTINUE THROUGH THE DAY. * SNOW ACCUMULATIONS...SNOW ACCUMULATION OF 8 TO 10 INCHES ARE EXPECTED ABOVE 7000 FEET BY EARLY THIS EVENING. * IMPACTS...ROADWAYS WILL BECOME SNOW PACKED AND ICY. TRAVELERS MAY EXPERIENCE PERIODS OF POOR VISIBILITY DUE TO HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW ARE LIKELY WHICH WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ HTTP://WEATHER.GOV/TUCSON
995 WWUS45 KTWC 030301 WSWTWC URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE TUCSON AZ 801 PM MST FRI DEC 2 2011 AZZ510-030415- /O.EXP.KTWC.WS.W.0002.000000T0000Z-111203T0300Z/ WHITE MOUNTAINS OF GRAHAM AND GREENLEE COUNTIES- INCLUDING THE CITY OF...HANNAGAN MEADOW 801 PM MST FRI DEC 2 2011 ...WINTER STORM WARNING WILL EXPIRE AT 8 PM MST THIS EVENING... THE WINTER STORM WARNING WILL EXPIRE AT 8 PM MST THIS EVENING. WIDESPREAD PRECIPITATION HAS ENDED OVER THE WARNING AREA...THUS...THE WINTER STORM WARNING WILL BE ALLOWED TO EXPIRE. $$ AZZ511-030415- /O.EXP.KTWC.WW.Y.0006.000000T0000Z-111203T0300Z/ GALIURO AND PINALENO MOUNTAINS- INCLUDING THE CITY OF...MOUNT GRAHAM 801 PM MST FRI DEC 2 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 8 PM MST THIS EVENING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 8 PM MST THIS EVENING. WIDESPREAD PRECIPITATION HAS ENDED OVER ADVISORY AREA...THUS...THE WINTER WEATHER ADVISORY WILL BE ALLOWED TO EXPIRE. $$ HTTP://WEATHER.GOV/TUCSON
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 1, 3:32 AM MST | Winter Weather Advisory | TWC | Cochise, Graham, Pinal | 40 hr |
| Dec 1, 5:54 AM MST | Wind Advisory | TWC | Cochise, Graham, Greenlee, Pima, Pinal, Santa Cruz | 14 hr |
Nearby
Winter Storm Warnings in Arizona, 2011Every winter storm warning in 2011
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.