Alert archive / Arizona / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 13, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 8, 2009, 5:29 PM MST for Cochise County, Graham County, Pima County, Arizona. It was in force for 31 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 8, 2009, 5:29 PM MST (00:29 UTC)
- Expired
- Jul 8, 2009, 6:00 PM MST
- In force
- 31 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
Counties Cochise County, AZ, Graham County, AZ, Pima County, AZ
The radar
The Tucson radar (KEMX), 52 km from the middle of the area, began a volume at 00:31 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 |
|---|---|---|---|
| Jul 8, 5:40 PM MST | TSTM WND DMG | 2 W Tucson, AZ | POWER POLES DOWNED NEAR GRANDE AND ST. MARYS RDS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 0.5 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
- 577 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 2808 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- -45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KTWC 090029 SVRTWC AZC003-009-019-090100- /O.NEW.KTWC.SV.W.0013.090709T0029Z-090709T0100Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 529 PM MST WED JUL 8 2009 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN PIMA COUNTY IN SOUTH CENTRAL ARIZONA... THIS INCLUDES THE CITIES OF...TUCSON...SEVEN FALLS... NORTHWESTERN COCHISE COUNTY IN SOUTHEAST ARIZONA... EXTREME SOUTHWESTERN GRAHAM COUNTY IN SOUTHEAST ARIZONA... * UNTIL 600 PM MST * AT 526 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS NEAR REDDINGTON PASS MOVING WEST AT 15 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM. && LAT...LON 3253 11068 3243 11026 3197 11124 3217 11135 TIME...MOT...LOC 0028Z 105DEG 11KT 3240 11046 $$
2 follow-up statements
000 WWUS55 KTWC 090047 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 547 PM MST WED JUL 8 2009 AZC003-009-019-090100- /O.CON.KTWC.SV.W.0013.000000T0000Z-090709T0100Z/ GRAHAM AZ-COCHISE AZ-PIMA AZ- 547 PM MST WED JUL 8 2009 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM MST FOR NORTHEASTERN PIMA...NORTHWESTERN COCHISE AND EXTREME SOUTHWESTERN GRAHAM COUNTIES... AT 544 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A COUPLE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH 3 MILES SOUTHEAST THREE POINTS AS WILL AS NEAR THE REDINGTON PASS AREA. THESE STORMS WERE MOVING WEST AT 15 MPH. SEVERAL STRONG THUNDERSTORMS CONTINUE ALONG A LINE BETWEEN THESE TWO STORMS...AND ALL ARE CAPABLE OF PRODUCING DAMAGING WINDS TO 60 MPH. LAT...LON 3253 11068 3243 11026 3197 11124 3217 11135 TIME...MOT...LOC 0044Z 105DEG 11KT 3241 11051 $$
000 WWUS55 KTWC 090058 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 558 PM MST WED JUL 8 2009 AZC003-009-019-090106- /O.EXP.KTWC.SV.W.0013.000000T0000Z-090709T0100Z/ GRAHAM AZ-COCHISE AZ-PIMA AZ- 558 PM MST WED JUL 8 2009 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PIMA... NORTHWESTERN COCHISE AND EXTREME SOUTHWESTERN GRAHAM COUNTIES WILL EXPIRE AT 600 PM MST... ALTHOUGH STRONG THUNDERSTORMS CONTINUE ACROSS NORTHEAST PIMA COUNTY...THE STORMS HAVE FALLEN BELOW SEVERE LEVELS. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE AT 6 PM MST. HOWEVER...A STRONG THUNDERSTORM 4 MILES WEST OF MARANA WILL BE CAPABLE OF PRODUCING VERY HEAVY RAINFALL AND WIND GUSTS TO 50 MPH. LAT...LON 3253 11068 3243 11026 3197 11124 3217 11135 TIME...MOT...LOC 0056Z 105DEG 11KT 3242 11055 $$
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 5:40 PM MST | Flash Flood Warning | TWC | Pima | 95 min |
| Jul 8, 5:54 PM MST | Flash Flood Warning | TWC | Graham | 81 min |
| Jul 8, 6:20 PM MST | Severe Thunderstorm Warning | TWC | Graham | 25 min |
| Jul 8, 6:37 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 38 min |
| Jul 8, 6:43 PM MST | Severe Thunderstorm Warning | TWC | Graham | 47 min |
| Jul 8, 7:06 PM MST | Areal Flood Advisory | TWC | Graham, Pima, Pinal | 3 hr |
Nearby
Severe Thunderstorm Warnings in Arizona, 2009Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.