Alert archive / Arizona / Special Weather Statements in 2019
Special Weather Statement, NWS Tucson, AZ
NWS Tucson, AZ issued this special weather statement at Jul 16, 2019, 1:03 PM MST for Santa Cruz County, Arizona. It was in force for 27 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 16, 2019, 1:03 PM MST (20:03 UTC)
- Expired
- Jul 16, 2019, 1:30 PM MST
- In force
- 27 min
- Issued by
- NWS Tucson, AZ
County Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 47 km from the middle of the area, began a volume at 20:06 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, 8.1 hours before the alert went out and 85 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
- 73 J/kg
- Mixed-layer CIN
- -379 J/kg
- Mixed-layer LCL
- 2881 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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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 16, 10:04 AM MST, 2 hours 59 minutes earlier.
Area forecast discussion, Jul 16, 10:04 AM MST, 2 hours 59 minutes before
Area Forecast Discussion National Weather Service Tucson AZ 1004 AM MST Tue Jul 16 2019 .SYNOPSIS...Very hot temperatures across much of the area again today, with isolated to scattered thunderstorms mainly east to south of Tucson. A better flow regime will likely increase thunderstorm coverage Wednesday afternoon into Wednesday night. Scattered mainly afternoon and evening thunderstorms with near normal temperatures to prevail Thursday into early next week. && .DISCUSSION...Another very hot day across southeast Arizona with an Excessive Heat Warning in effect through 8 PM MST this evening across parts of southeast Arizona. Upper air plots this morning placed upper high over the New Mexico boot with weak south to southwest flow aloft over the area. PW values are slightly down versus 24 hours ago with values ranging from 0.90" to 1.30" with highest values along the International border. Per latest high resolution models, Santa Cruz and southern Cochise county will be the best areas for scattered showers and thunderstorms, especially from the Patagonia mountains to the Mule mountains, with brief heavy rain and gusty winds being the main concerns. Went ahead and ran out an updated for increasing PoPs and QPF for the above mentioned areas. Wednesday looks rather active especially from Tucson south with heavy rain and gusty winds once again a concern. WPC has this area under a marginal ERO, Excessive Rainfall Outlook, tomorrow afternoon and evening. && .AVIATION...Valid through 17/12Z. Isolated to scattered -TSRA/-SHRA mostly east to south of KTUS this afternoon and evening. Brief wind gusts to 40 kts should occur near stronger TSRA. Otherwise, cloud decks mainly 12k-18k ft MSL. Aside from aforementioned tstm gusts, surface wind this afternoon swly- nwly 10-15 kts with gusts to 20 kts. Surface wind variable in direction under 10 kts at other times. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...Excessive Heat Warning until 8 pm MST this evening from Tucson west and northwest, and portions of the Upper Gila River Valley including Safford. Otherwise, isolated to scattered mainly afternoon and evening thunderstorms this afternoon mainly east to south of Tucson. Increased moisture and a better flow regime should enhance thunderstorm coverage Wednesday afternoon into Wednesday night. Thereafter, scattered mainly afternoon and evening thunderstorms Thursday into early next week. Expect brief strong, gusty and erratic winds near thunderstorms. Otherwise, 20-foot winds will be mainly under 15 mph. && .TWC WATCHES/WARNINGS/ADVISORIES... Excessive Heat Warning until 8 PM MST this evening for AZZ501- 502-504>506-509. && Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
In the hours before
Special weather statement, Jul 16, 12:29 PM MST, 34 minutes before
Special Weather Statement National Weather Service Tucson AZ 1229 PM MST Tue Jul 16 2019 AZZ507-513-162000- Upper San Pedro River Valley including Sierra Vista/Benson-Dragoon/Mule/Huachuca and Santa Rita Mountains including Bisbee/Canelo Hills/Madera Canyon- 1229 PM MST Tue Jul 16 2019 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN COCHISE COUNTY UNTIL 100 PM MST... At 1228 PM MST, Doppler radar was tracking a strong thunderstorm near Hereford, or 11 miles south of Sierra Vista. This storm was nearly stationary. Half inch hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Hereford, Coronado National Memorial and Ramsey Canyon Preserve. LAT...LON 3152 11038 3149 11022 3133 11013 3134 11038 TIME...MOT...LOC 1928Z 297DEG 3KT 3139 11027 KD
Special weather statement, Jul 16, 1:03 PM MST, 0 minutes before
Special Weather Statement National Weather Service Tucson AZ 103 PM MST Tue Jul 16 2019 AZZ503-507-513-162030- Upper San Pedro River Valley including Sierra Vista/Benson-Dragoon/Mule/Huachuca and Santa Rita Mountains including Bisbee/Canelo Hills/Madera Canyon-Upper Santa Cruz River and Altar Valleys including Nogales- 103 PM MST Tue Jul 16 2019 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN COCHISE AND EAST CENTRAL SANTA CRUZ COUNTIES UNTIL 130 PM MST... At 103 PM MST, Doppler radar was tracking a strong thunderstorm near Parker Canyon Lake, or 10 miles west of Sierra Vista. This storm was nearly stationary. Half inch hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Parker Canyon Lake, Fort Huachuca and Canelo. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3145 11060 3161 11057 3156 11032 3138 11038 TIME...MOT...LOC 2003Z 297DEG 2KT 3150 11046 KD
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 12:29 PM MST | Special Weather Statement | TWC | 31 min | |
| Jul 16, 1:07 PM MST | Special Weather Statement | TWC | 23 min | |
| Jul 16, 1:24 PM MST | Special Weather Statement | TWC | Santa Cruz | 36 min |
| Jul 16, 1:40 PM MST | Severe Thunderstorm Warning | TWC | Pima, Santa Cruz | 36 min |
| Jul 16, 2:10 PM MST | Areal Flood Advisory | TWC | Pima, Santa Cruz | 95 min |
| Jul 16, 2:10 PM MST | Special Weather Statement | TWC | Santa Cruz | 35 min |
| Jul 16, 2:24 PM MST | Special Weather Statement | TWC | Santa Cruz | 36 min |
| Jul 16, 3:03 PM MST | Special Weather Statement | TWC | Santa Cruz | 42 min |
| Jul 16, 3:10 PM MST | Special Weather Statement | TWC | Santa Cruz | 35 min |
| Jul 16, 3:26 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 2 hr |
Nearby
Special Weather Statements in Arizona, 2019Every special weather statement in 2019
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.