Alert archive / Arizona / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 59, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 3, 2019, 5:47 PM MST for Cochise County, Graham County, Arizona. 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
- Aug 3, 2019, 5:47 PM MST (00:47 UTC)
- Expired
- Aug 3, 2019, 6:45 PM MST
- In force
- 58 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cochise County, AZ, Graham County, AZ
The radar
The Tucson radar (KEMX), 139 km from the middle of the area, began a volume at 00:47 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 0.8 hours before the alert went out and 149 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
- 428 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 3249 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -34 m²/s²
- 0-3 km storm-relative helicity
- -7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
021
WUUS55 KTWC 040047
SVRTWC
AZC003-009-040145-
/O.NEW.KTWC.SV.W.0059.190804T0047Z-190804T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
547 PM MST Sat Aug 3 2019
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
Southeastern Graham County in southeastern Arizona...
North central Cochise County in southeastern Arizona...
* Until 645 PM MST.
* At 546 PM MST, a severe thunderstorm was located 14 miles north of
Bowie, or 25 miles southeast of Safford, moving southwest at 10
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will remain over mainly remote areas of
southeastern Graham and north central Cochise Counties.
This includes Route 191 near mile marker 107.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 3270 10935 3258 10928 3242 10914 3235 10950
3264 10970
TIME...MOT...LOC 0046Z 063DEG 8KT 3254 10944
HAIL...1.00IN
WIND...60MPH
$$
LEINS2 follow-up statements
009
WWUS55 KTWC 040106
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
606 PM MST Sat Aug 3 2019
AZC003-009-040145-
/O.CON.KTWC.SV.W.0059.000000T0000Z-190804T0145Z/
Graham-Cochise-
606 PM MST Sat Aug 3 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM MST
FOR SOUTH CENTRAL GRAHAM AND NORTH CENTRAL COCHISE COUNTIES...
At 606 PM MST, a severe thunderstorm was located 13 miles north of
Bowie, or 24 miles southeast of Safford, moving southwest at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe thunderstorm will remain over mainly remote areas of
south central Graham and north central Cochise Counties.
This includes Route 191 near mile marker 107.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3267 10941 3254 10932 3242 10921 3235 10950
3264 10970
TIME...MOT...LOC 0106Z 063DEG 8KT 3252 10949
HAIL...1.00IN
WIND...60MPH
$$
LEINS723
WWUS55 KTWC 040142
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
642 PM MST Sat Aug 3 2019
AZC003-009-040151-
/O.EXP.KTWC.SV.W.0059.000000T0000Z-190804T0145Z/
Graham-Cochise-
642 PM MST Sat Aug 3 2019
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL GRAHAM AND NORTH
CENTRAL COCHISE COUNTIES WILL EXPIRE AT 645 PM MST...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with this thunderstorm.
LAT...LON 3267 10941 3254 10932 3242 10921 3235 10950
3264 10970
TIME...MOT...LOC 0141Z 063DEG 8KT 3249 10956
$$
LEINSWhat forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 3, 1:40 PM MST, 4 hours 7 minutes earlier.
Area forecast discussion, Aug 3, 1:40 PM MST, 4 hours 7 minutes before
Area Forecast Discussion National Weather Service Tucson AZ 140 PM MST Sat Aug 3 2019 .SYNOPSIS...The threat of afternoon and evening isolated to scattered showers and thunderstorms will remain through the weekend into early next week. In addition to these storms, unseasonably hot temperatures and increased humidity will make for an uncomfortable few days. && .DISCUSSION...Isolated to scattered showers and thunderstorms were already developing early this afternoon. The air mass remains moist enough to support heavy downpours and strong wet microburst type winds through this evening. Small hail not out of the question too. Otherwise, the pattern remains favorable for daily showers and thunderstorms this weekend. A slight downturn in the areal coverage of thunderstorms may evolve early this coming week as the upper high becomes centered over central and east-central Arizona briefly. However, models hint at an upswing in shower and thunderstorm activity by the end of next week as an inverted upper trough approaches from northern Mexico. Daytime temperatures will remain several degrees above normal through at least Tuesday before moderating some the rest of the week. && .AVIATION...Valid through 05/00Z. Expect isolated to scattered SHRA/TSRA this afternoon and evening mainly from central Pima County eastward with SCT-BKN clouds 8-12k ft, diminishing after sundown. Best chances will be at KOLS and KDUG terminals. Sfc winds generally out of the northwest 8-12 knots this afternoon as well as Sunday afternoon becoming variable less than 10 knots overnight. Expect gusty and erratic winds near any TSRA with local MVFR CIGS and VSBYS possible. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...The daily cycle of afternoon/evening showers and thunderstorms will continue through the forecast period. Minimum RH values remain above 20-25 percent, and overnight recoveries will be very good. Even with the abundant moisture, temperatures will be several degrees above normal this weekend into early next week. Aside from gusty erratic winds from thunderstorm outflows, wind trends stay light and terrain driven. && .TWC WATCHES/WARNINGS/ADVISORIES...None. && Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
In the hours before
Special weather statement, Aug 3, 1:27 PM MST, 4 hours 20 minutes before
Special Weather Statement National Weather Service Tucson AZ 127 PM MST Sat Aug 3 2019 AZZ508-512-032115- Chiricahua Mountains including Chiricahua National Monument-Eastern Cochise County Below 5000 Feet including Douglas/Willcox- 127 PM MST Sat Aug 3 2019 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN COCHISE COUNTY UNTIL 215 PM MST... At 127 PM MST, Doppler radar was tracking a strong thunderstorm 19 miles south of Chiricahua National Monument, moving south at 10 mph. Dime size hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Rucker Canyon. LAT...LON 3183 10952 3175 10932 3148 10937 3159 10966 TIME...MOT...LOC 2027Z 019DEG 9KT 3173 10946 Carpenter
Special weather statement, Aug 3, 3:12 PM MST, 2 hours 35 minutes before
Special Weather Statement
National Weather Service Tucson AZ
312 PM MST Sat Aug 3 2019
AZZ502-503-515-032300-
Tohono O'odham Nation including Sells-Upper Santa Cruz River and
Altar Valleys including Nogales-Baboquivari Mountains including Kitt
Peak-
312 PM MST Sat Aug 3 2019
...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL PIMA COUNTY UNTIL
400 PM MST...
At 311 PM MST, Doppler radar was tracking strong thunderstorms 13
miles east of San Miguel, moving east at 10 mph.
Wind gusts up to 50 mph will be possible with this storm.
Locations impacted include...
Arivaca and Sasabe.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall is also occurring with these storms, and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3152 11167 3152 11168 3177 11170 3180 11132
3153 11128 3153 11137 3143 11137
TIME...MOT...LOC 2211Z 256DEG 8KT 3169 11157
CarpenterSpecial weather statement, Aug 3, 3:59 PM MST, 1 hour 48 minutes before
Special Weather Statement National Weather Service Tucson AZ 359 PM MST Sat Aug 3 2019 AZZ507-032345- Upper San Pedro River Valley including Sierra Vista/Benson- 359 PM MST Sat Aug 3 2019 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN GRAHAM AND NORTHWESTERN COCHISE COUNTIES UNTIL 445 PM MST... At 358 PM MST, Doppler radar was tracking a strong thunderstorm 25 miles northwest of Dragoon, or 25 miles north of Benson, moving northwest at 15 mph. Wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Muleshoe Ranch Preserve and Cascabel. 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. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 3235 11018 3221 11029 3226 11045 3253 11044 TIME...MOT...LOC 2258Z 132DEG 12KT 3233 11029 LEINS
Special weather statement, Aug 3, 4:21 PM MST, 1 hour 26 minutes before
Special Weather Statement National Weather Service Tucson AZ 421 PM MST Sat Aug 3 2019 AZZ507-508-513-040000- Upper San Pedro River Valley including Sierra Vista/Benson-Dragoon/Mule/Huachuca and Santa Rita Mountains including Bisbee/Canelo Hills/Madera Canyon-Eastern Cochise County Below 5000 Feet including Douglas/Willcox- 421 PM MST Sat Aug 3 2019 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL COCHISE COUNTY UNTIL 500 PM MST... At 421 PM MST, Doppler radar was tracking a strong thunderstorm near Tombstone moving east at 10 mph. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... Tombstone. PRECAUTIONARY/PREPAREDNESS ACTIONS... Heavy rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3164 11009 3182 11005 3181 10973 3155 10978 TIME...MOT...LOC 2321Z 280DEG 8KT 3172 10999 Carpenter
Local storm report, Aug 3, 5:05 PM MST, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
505 PM MST SAT AUG 3 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0404 PM TSTM WND GST 3 N BISBEE 31.44N 109.91W
08/03/2019 M58 MPH COCHISE AZ MESONET
MESONET STATION CW7706 BISBEE.
&&Special weather statement, Aug 3, 5:39 PM MST, 8 minutes before
Special Weather Statement National Weather Service Tucson AZ 539 PM MST Sat Aug 3 2019 AZZ508-509-040145- Upper Gila River and Aravaipa Valleys including Clifton/Safford-Eastern Cochise County Below 5000 Feet including Douglas/Willcox- 539 PM MST Sat Aug 3 2019 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN GRAHAM AND NORTH CENTRAL COCHISE COUNTIES UNTIL 645 PM MST... At 539 PM MST, Doppler radar was tracking a strong thunderstorm 15 miles north of Bowie, or 25 miles southeast of Safford, moving southwest at 10 mph. Wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Bowie. 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. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 3273 10929 3240 10919 3230 10951 3264 10970 TIME...MOT...LOC 0039Z 063DEG 8KT 3254 10942 LEINS
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 5:39 PM MST | Special Weather Statement | TWC | 66 min | |
| Aug 3, 6:08 PM MST | Special Weather Statement | TWC | 52 min | |
| Aug 3, 7:27 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Aug 4, 2:15 PM MST | Special Weather Statement | TWC | Santa Cruz | 45 min |
| Aug 4, 4:58 PM MST | Special Weather Statement | TWC | 47 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2019Every severe thunderstorm warning 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.