Alert archive / Arizona / Special Weather Statements in 2012
Special Weather Statement, NWS Tucson, AZ
NWS Tucson, AZ issued this special weather statement at May 9, 2012, 7:32 PM MST. It was in force for 58 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
- May 9, 2012, 7:32 PM MST (02:32 UTC)
- Expired
- May 9, 2012, 8:30 PM MST
- In force
- 58 min
- Issued by
- NWS Tucson, AZ
The radar
The Phoenix radar (KIWA), 152 km from the middle of the area, began a volume at 02:33 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
Yuma Prvg Ground, AZ (K1Y7), launched 00:00Z, 2.5 hours before the alert went out and 158 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
- 53 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 4423 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- -3 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 May 9, 2:05 PM MST, 5 hours 27 minutes earlier.
Area forecast discussion, May 9, 2:05 PM MST, 5 hours 27 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 205 PM MST WED MAY 9 2012 .SYNOPSIS...A LOW PRESSURE SYSTEM TRACKING THROUGH NORTHERN MEXICO WILL BRING SHOWERS AND THUNDERSTORMS TO THE AREA THIS AFTERNOON AND EVENING. A FEW RESIDUAL SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE NEAR THE NEW MEXICO BORDER THURSDAY. OTHERWISE...DRY CONDITIONS AND WARMING TEMPERATURES ARE THEN EXPECTED INTO THIS WEEKEND. && .DISCUSSION...CONVECTION HAS DEVELOPED AS EXPECTED ACROSS SOUTHEAST ARIZONA OVER THE PAST SEVERAL HOURS. THE BULK OF THE ACTIVITY HAS OCCURRED ACROSS COCHISE...SANTA CRUZ AND CENTRAL PIMA COUNTIES WITH MORE ISOLATED CONVECTION ACROSS GRAHAM/GREENLEE COUNTIES AND LITTLE TO NOTHING SO FAR FROM TUCSON NORTHWARD INTO SOUTHEAST PINAL COUNTY. WE'VE HAD MANY REPORTS OF DIME SIZE HAIL FROM THESE STORMS FOCUSED ON THE RIO RICO AND DOUGLAS AREAS OVER THE LAST HOUR OR SO. THIS HAIL WAS EVEN COVERING THE GROUND IN SOME LOCATIONS. WINDS HAVE BEEN LESS OF AN ISSUE SO FAR BUT WE'VE SEEN OUTFLOW WIND GUSTS TO ABOUT 30 TO 40 MPH IN THE TUCSON METRO WHICH KICKED UP SOME DUST NEAR THE I-10/I-19 INTERCHANGE THAT WAS VISIBLE FROM THE OFFICE. LATEST RADAR TRENDS SHOW THE STRONGEST STORMS NEAR THE INTERNATIONAL BORDER ACROSS SANTA CRUZ AND SOUTHERN COCHISE COUNTIES WITH A GENERAL WEST TO NORTHWEST MOVEMENT OF ABOUT 10 TO 20 MPH. STILL A TOUGH CALL WHETHER CONVECTIVE ACTIVITY MAKES IT INTO TUCSON BUT WILL MAINTAIN CHANCE POPS INTO THIS EVENING. THE UPPER LOW NOW ACROSS NORTHERN MEXICO WHICH RESULTED IN THE INCREASED MOISTURE ALONG WITH THE SHOWERS AND THUNDERSTORMS WILL CONTINUE TO PUSH EAST THURSDAY. THERE WILL STILL BE ENOUGH RESIDUAL MOISTURE FOR SLIGHT CHANCE TO LOW END CHANCE POPS MAINLY ACROSS COCHISE/GRAHAM/GREENLEE COUNTIES. THEREAFTER...GENERALLY DRY CONDITIONS ARE EXPECTED THIS WEEKEND WITH MUCH WARMER TEMPERATURES AS RIDGING ALOFT WILL BE IN CONTROL. MOSTLY DRY CONDITIONS ARE EXPECTED INTO NEXT WEEK AS WELL...ALTHOUGH A WEAK AREA OF LOW PRESSURE COMBINED WITH JUST ENOUGH MOISTURE WILL RESULT IN SLIGHT CHANCE POPS FOR THE WHITE MOUNTAINS TUESDAY. && .AVIATION...EASTERLY FLOW ASSOCIATED WITH LOW PRESSURE MOVING THROUGH SONORA MEXICO WILL CONTINUE TO INCREASE MOISTURE ACROSS THE AREA. THIS WILL CONTINUE THE CHANCE FOR SHOWERS AND THUNDERSTORMS TODAY AND INTO THIS EVENING. THRU 10/04Z SCT080-100 BKN150 SCT SHRA/TSRA. LCL CIGS BKN040 WITH MTNS OBSCD. WIND GUSTS UP TO 45 KTS NEAR TSTMS. AFT 10/04Z SCT100 BKN150 ISOLD SHRA. SURFACE WIND EASTERLY 10-20 KTS WITH LOCAL GUSTS UP TO 30 KTS. AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS. && .FIRE WEATHER...A LOW PRESSURE SYSTEM PUSHING THROUGH SONORA MEXICO TODAY WILL BRING A SUSTAINED EASTERLY FLOW IMPORTING MOISTURE INTO THE AREA. SCATTERED SHOWERS AND THUNDERSTORMS ACROSS MOST OF THE AREA THIS AFTERNOON AND EVENING...WITH STRONG GUSTY OUTFLOWS ASSOCIATED WITH SOME STORMS. SHOWER ACTIVITY WILL RETREAT AS LOW EXITS...TAKING MOISTURE WITH IT. HOWEVER...MAY STILL SEE ISOLATED ACTIVITY NEAR THE NEW MEXICO BORDER THURSDAY. DRY CONDITIONS AND ABOVE NORMAL TEMPERATURES WILL RETURN FRIDAY THROUGH SUNDAY. && .TWC WATCHES/WARNINGS/ADVISORIES...NONE. WEATHER.GOV/TUCSON
Hazardous weather outlook, May 9, 2:10 PM MST, 5 hours 22 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TUCSON AZ 210 PM MST WED MAY 9 2012 AZZ501>515-101300- 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- 210 PM MST WED MAY 9 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS SOUTHEAST ARIZONA INTO THIS EVENING. THESE THUNDERSTORMS WILL PRODUCE SMALL HAIL AND GUSTY WINDS LOCALLY UP TO 50 MPH. SOME OF THESE STRONG WINDS WILL PRODUCE LOCALIZED AREAS OF BLOWING DUST...WHERE VISIBILITIES MAY BRIEFLY DROP BELOW ONE HALF OF A MILE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A FEW SHOWERS AND THUNDERSTORMS ARE POSSIBLE ACROSS GRAHAM...GREENLEE AND COCHISE COUNTIES THURSDAY. OTHERWISE...DRY WEATHER IS EXPECTED THIS WEEKEND INTO EARLY NEXT WEEK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. WEATHER.GOV/TUCSON
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.