Alert archive / Arizona / Special Weather Statements in 2012
Special Weather Statement, NWS Tucson, AZ
NWS Tucson, AZ issued this special weather statement at Jul 22, 2012, 12:40 PM MST for Santa Cruz County, Arizona. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 22, 2012, 12:40 PM MST (19:40 UTC)
- Expired
- Jul 22, 2012, 1:30 PM MST
- In force
- 50 min
- Issued by
- NWS Tucson, AZ
County Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 34 km from the middle of the area, began a volume at 19:40 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 12:00Z, 7.7 hours before the alert went out and 18 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
- 234 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 1242 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tucson, AZ wrote its last area forecast discussion before this special weather statement went out at Jul 22, 9:00 AM MST, 3 hours 40 minutes earlier.
Area forecast discussion, Jul 22, 9:00 AM MST, 3 hours 40 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 900 AM MST SUN JUL 22 2012 .SYNOPSIS...PLENTY OF MOISTURE FOR MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS THIS WEEK. SOME THUNDERSTORMS WILL GENERATE HEAVY RAINFALL. && .DISCUSSION...EVEN WETTER THIS MORNING WITH PRECIPITABLE WATER VALUES NEAR 1.7 (ABOUT 150 PERCENT OF NORMAL) AND SURFACE DEWPTS IN THE 60S. MORE DEBRIS CLOUD HANGING ON THIS MORNING SO MOST LOCATIONS WILL TAKE LONGER TO SEE DIRECT HEATING THAN YESTERDAY. ALSO...MID LEVELS HAVE WARMED A LITTLE WITH H5 COMING IN AT -5 C ON THE 12Z KTWC SOUNDING. DECENT EASTERLY TO SOUTHEASTERLY FLOW ARGUES WE SHOULD REFRESH ATMOSPHERE AND GET RID OF REMAINING DEBRIS CLOUD PRETTY QUICKLY OVER THE NEXT 2 HOURS WITH PLENTY OF SOLAR INSOLATION BY 11 AM OR SO. BEST GUESS IS WEAK IMPULSE ROTATING OUT OF NORTHERN SONORA SHOULD HELP OVERCOME MODEST WARMING IN MID LEVELS BY NOON FOR ANOTHER BUSY AFTERNOON AND EARLY EVENING...ALTHOUGH THE NAM12 ISN'T HANDLING THE FIRST FEW HOURS VERY WELL. WE'LL LET THE HEAVY MONSOON FORECAST STAND TODAY WITH LOCALLY HEAVY RAIN AND WET MICROBURSTS A CONCERN. && .PREV DISCUSSION...BROAD UPPER RIDGE CENTERED OVER THE CENTRAL CONUS WILL PROVIDE DEEP GENERALLY SELY FLOW ACROSS SE AZ THRU TUE. SERIES OF IMPULSES MOVING NWWD ACROSS THE AREA IN COMBINATION WITH AMPLE MOISTURE WILL PRODUCE SCATTERED MAINLY AFTERNOON AND EVENING SHOWERS/TSTMS. PRECIP CHANCES TO DECREASE SOMEWHAT WED-THUR AS UPPER HIGH BECOMES CENTERED OVER SRN NEVADA/SRN UTAH. HOWEVER...STILL ENOUGH MOISTURE FOR CHANCE-CATEGORY POPS EAST AND SOUTH OF TUCSON WITH LESSER CHANCES OF PRECIP ACROSS WRN SECTIONS. THEREAFTER... SCATTERED SHOWERS/TSTMS TO RETURN TO MUCH OF SE AZ BY SAT AS UPPER HIGH BECOMES CENTERED AGAIN OVER THE CENTRAL CONUS. HIGH TEMPS TO AVERAGE A FEW DEGS BELOW CLIMO MUCH OF THIS WEEK. && .AVIATION...SCT-NMRS TSRA/SHRA THRU THIS EVENING THEN ISOLD -TSRA/-SHRA 06Z-12Z MONDAY. WIND GUSTS APPROACHING 45 KTS WITH THE STRONGEST TSRA. OTHERWISE...VFR CONDITIONS AND SURFACE WIND GENERALLY LESS THAN 10 KTS THRU MONDAY MORNING OR 23/15Z. AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS. && .FIRE WEATHER...EXPECT SCATTERED MAINLY AFTERNOON AND EVENING THUNDERSTORMS INTO NEXT WEEKEND. && .TWC WATCHES/WARNINGS/ADVISORIES...NONE. MEYER/BF WEATHER.GOV/TUCSON
Hazardous weather outlook, Jul 22, 9:36 AM MST, 3 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TUCSON AZ 936 AM MST SUN JUL 22 2012 AZZ501>515-231645- WESTERN PIMA COUNTY-TOHONO O'ODHAM NATION- UPPER SANTA CRUZ RIVER VALLEY/ALTAR VALLEY-TUCSON METRO AREA- SOUTH CENTRAL PINAL COUNTY-SOUTHEAST PINAL COUNTY- UPPER SAN PEDRO RIVER VALLEY- EASTERN COCHISE COUNTY BELOW 5000 FEET-UPPER GILA RIVER VALLEY- WHITE MOUNTAINS OF GRAHAM AND GREENLEE COUNTIES- GALIURO AND PINALENO MOUNTAINS-CHIRICAHUA MOUNTAINS- DRAGOON AND MULE AND HUACHUCA AND SANTA RITA MOUNTAINS- CATALINA AND RINCON MOUNTAINS-BABOQUIVARI MOUNTAINS- 936 AM MST SUN JUL 22 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA. .DAY ONE...TODAY AND TONIGHT EXPECT NUMEROUS MOUNTAIN TO SCATTERED VALLEY SHOWERS AND THUNDERSTORMS AGAIN TODAY. SOME STORMS WILL GENERATE HEAVY RAIN WITH FLASH FLOODING POSSIBLE. THE STRONGEST STORMS MAY GENERATE WIND GUSTS TO 50 MPH AND SMALL HAIL. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THERE WILL BE A CHANCE OF MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS THROUGH THE COMING WEEK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. WEATHER.GOV/TUCSON
In the hours before
Local storm report, Jul 22, 9:57 AM MST, 2 hours 43 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TUCSON AZ
957 AM MST SUN JUL 22 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0145 PM TSTM WND DMG 3 NNW SAHUARITA 31.99N 110.97W
07/21/2012 PIMA AZ BROADCAST MEDIA
TREE DOWNED...TIME ESTIMATED FROM RADAR
0231 PM TSTM WND DMG 3 ESE TUCSON 32.23N 110.90W
07/21/2012 PIMA AZ TRAINED SPOTTER
SEVERAL 4 INCH TREE LIMBS DOWN
0235 PM TSTM WND DMG 4 SE CATALINA FOOTHILLS 32.26N 110.84W
07/21/2012 PIMA AZ BROADCAST MEDIA
E SHORELINE DRIVE AND N SABINO CANYON ROAD...TIME
ESTIMATED FROM RADAR
&&
EVENT NUMBER TWC1200035 TWC1200036 TWC1200037
KDSpecial weather statement, Jul 22, 11:44 AM MST, 56 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 1144 AM MST SUN JUL 22 2012 AZZ503-507-513-221915- DRAGOON/MULE/HUACHUCA AND SANTA RITA MOUNTAINS INCLUDING BISBEE/CANELO HILLS/MADERA CANYON AZ-UPPER SAN PEDRO RIVER VALLEY INCLUDING SIERRA VISTA/BENSON AZ-UPPER SANTA CRUZ RIVER AND ALTAR VALLEYS INCLUDING NOGALES AZ- 1144 AM MST SUN JUL 22 2012 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN SANTA CRUZ COUNTY UNTIL 1215 PM MST... AT 1140 AM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR SONOITA...MOVING NORTH AT 5 TO 10 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. AREAS AFFECTED BY THIS STORM INCLUDE...MAINLY RURAL AREAS OF NORTHEASTERN SANTA CRUZ COUNTY. LAT...LON 3173 11078 3173 11051 3164 11051 3162 11073 TIME...MOT...LOC 1844Z 165DEG 6KT 3170 11065 MEYER
Special weather statement, Jul 22, 12:27 PM MST, 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 1227 PM MST SUN JUL 22 2012 AZZ505-506-222015- SOUTH CENTRAL PINAL COUNTY INCLUDING ELOY/PICACHO PEAK STATE PARK AZ-SOUTHEAST PINAL COUNTY INCLUDING KEARNY/MAMMOTH/ORACLE AZ- 1227 PM MST SUN JUL 22 2012 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL PINAL COUNTY UNTIL 115 PM MST... AT 1220 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 17 MILES NORTHWEST OF ORACLE...OR 22 MILES SOUTHEAST OF FLORENCE...MOVING NORTHWEST AT 5 TO 10 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. AREAS AFFECTED BY THIS STORM INCLUDE...MAINLY RURAL AREAS OF CENTRAL PINAL COUNTY. LAT...LON 3289 11131 3309 11098 3274 11087 3268 11107 TIME...MOT...LOC 1926Z 156DEG 6KT 3280 11101 MEYER
Special weather statement, Jul 22, 12:40 PM MST, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 1240 PM MST SUN JUL 22 2012 AZZ504-222030- TUCSON METRO AREA INCLUDING TUCSON/GREEN VALLEY/MARANA/VAIL AZ- 1240 PM MST SUN JUL 22 2012 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN PIMA COUNTY UNTIL 130 PM MST... AT 1236 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR SAHUARITA...OR 9 MILES NORTHEAST OF GREEN VALLEY...MOVING NORTHWEST AT 5 TO 10 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. AREAS AFFECTED BY THIS STORM INCLUDE...SAHUARITA AND SAN XAVIER. LAT...LON 3210 11118 3213 11071 3191 11077 3183 11096 TIME...MOT...LOC 1940Z 153DEG 6KT 3195 11091
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 6:05 PM MST | Severe Thunderstorm Warning | TWC | Pima | 40 min |
| Jul 21, 6:17 PM MST | Areal Flood Advisory | TWC | Pima | 118 min |
| Jul 22, 11:44 AM MST | Special Weather Statement | TWC | Santa Cruz | 31 min |
| Jul 22, 12:27 PM MST | Special Weather Statement | TWC | Pinal | 48 min |
| Jul 22, 12:52 PM MST | Severe Thunderstorm Warning | TWC | Pima | 23 min |
| Jul 22, 1:15 PM MST | Severe Thunderstorm Warning | TWC | Pima | 60 min |
| Jul 22, 1:30 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 3 hr |
| Jul 22, 1:36 PM MST | Special Weather Statement | TWC | 39 min | |
| Jul 22, 1:56 PM MST | Flash Flood Warning | TWC | Pima | 92 min |
| Jul 22, 2:39 PM MST | Severe Thunderstorm Warning | TWC | Pima | 51 min |
Nearby
Special Weather Statements in Arizona, 2012Every special weather statement in 2012
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.